\n

\n \n 2021\n \n \n (4)\n \n \n

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\n \n\n \n \n \n \n \n \n Testing the developmental hypothesis of the HPA axis in a tropical passerine: Dampened corticosterone response and faster negative feedback in nestling lance-tailed manakins (Chiroxiphia lanceolata).\n \n \n \n \n\n\n \n Jones, B., C.; Nguyen, L., T.; and DuVal, E., H.\n\n\n \n\n\n\n General and Comparative Endocrinology, 300: 113639. 10 2021.\n \n\n\n\n
\n\n\n\n \n \n $\"Testing$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Testing the developmental hypothesis of the HPA axis in a tropical passerine: Dampened corticosterone response and faster negative feedback in nestling lance-tailed manakins (Chiroxiphia lanceolata)},\n type = {article},\n year = {2021},\n keywords = {Altricial,Avian,Glucocorticoid,Hormone,Hypothalamic-pituitary-adrenal,Stress},\n pages = {113639},\n volume = {300},\n websites = {https://doi.org/10.1016/j.ygcen.2020.113639,https://linkinghub.elsevier.com/retrieve/pii/S0016648020303920},\n month = {10},\n publisher = {Elsevier Inc.},\n id = {f9f5d643-02fd-3804-9316-04dd2f2e6249},\n created = {2020-10-06T19:25:09.355Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:25.376Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {When vertebrates are exposed to stressors, the subsequent acute increase in glucocorticoids by the hypothalamic–pituitaryadrenal (HPA) axis triggers a suite of adaptive responses, including mobilization of stored energy and repression of non-essential processes. However, chronic exposure to high concentrations of glucocorticoids can lead to metabolic dysregulation, impaired immune function, and cognitive decline. In developing young, this hormonal stress response shows considerable variation. Generally, the physiological stress response of young of precocial species is comparable to that of adults, whereas offspring of altricial species exhibit an attenuated response compared to adults. The developmental hypothesis of the HPA axis proposes that the dampened stress response in dependent offspring is an adaptive response to avoid the negative effects of elevated glucocorticoids, particularly in altricial species where young lack the ability to mitigate stressful stimuli. We aimed to test the developmental hypothesis in a tropical avian species, the lance-tailed manakin (Chiroxiphia lanceolata). We predicted that nestlings of this altricial species should have a dampened corticosterone response, in both magnitude and duration, compared to that of adults. We also predicted that recently fledged hatch-year birds would display a response intermediate to that of adults and nestlings. We quantified circulating corticosterone levels in adults, recently fledged hatch-year birds, and 11-day-old nestlings using a standardized capture and restraint protocol. Nestlings showed a lower maximal corticosterone response and faster negative feedback compared to adults. Further, five post-fledging hatch-year birds showed a feedback response intermediate to those of nestlings and adults. However, we caution against generalizing about fledgling responses beyond this study due to the small sample (n = 5). Interestingly, lance-tailed manakin nestlings appear to return to baseline concentrations faster than nestlings of temperate species. These results support the developmental hypothesis of the HPA axis explaining variation in stress response. This study is the first to assess the development of the hormonal stress response in nestlings of a tropical bird, which is of interest because of our still-developing understanding of how tropical and temperate species differ physiologically. Finally, findings here underscore the importance of validating and adjusting sampling protocols that quantify nestling stress responses, as sampling timelines identified for adults may underestimate the magnitude of the nestling stress response.},\n bibtype = {article},\n author = {Jones, Blake Carlton and Nguyen, Leslie T and DuVal, Emily H.},\n doi = {10.1016/j.ygcen.2020.113639},\n journal = {General and Comparative Endocrinology}\n}

\n

\n\n\n

\n When vertebrates are exposed to stressors, the subsequent acute increase in glucocorticoids by the hypothalamic–pituitaryadrenal (HPA) axis triggers a suite of adaptive responses, including mobilization of stored energy and repression of non-essential processes. However, chronic exposure to high concentrations of glucocorticoids can lead to metabolic dysregulation, impaired immune function, and cognitive decline. In developing young, this hormonal stress response shows considerable variation. Generally, the physiological stress response of young of precocial species is comparable to that of adults, whereas offspring of altricial species exhibit an attenuated response compared to adults. The developmental hypothesis of the HPA axis proposes that the dampened stress response in dependent offspring is an adaptive response to avoid the negative effects of elevated glucocorticoids, particularly in altricial species where young lack the ability to mitigate stressful stimuli. We aimed to test the developmental hypothesis in a tropical avian species, the lance-tailed manakin (Chiroxiphia lanceolata). We predicted that nestlings of this altricial species should have a dampened corticosterone response, in both magnitude and duration, compared to that of adults. We also predicted that recently fledged hatch-year birds would display a response intermediate to that of adults and nestlings. We quantified circulating corticosterone levels in adults, recently fledged hatch-year birds, and 11-day-old nestlings using a standardized capture and restraint protocol. Nestlings showed a lower maximal corticosterone response and faster negative feedback compared to adults. Further, five post-fledging hatch-year birds showed a feedback response intermediate to those of nestlings and adults. However, we caution against generalizing about fledgling responses beyond this study due to the small sample (n = 5). Interestingly, lance-tailed manakin nestlings appear to return to baseline concentrations faster than nestlings of temperate species. These results support the developmental hypothesis of the HPA axis explaining variation in stress response. This study is the first to assess the development of the hormonal stress response in nestlings of a tropical bird, which is of interest because of our still-developing understanding of how tropical and temperate species differ physiologically. Finally, findings here underscore the importance of validating and adjusting sampling protocols that quantify nestling stress responses, as sampling timelines identified for adults may underestimate the magnitude of the nestling stress response.\n

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\n \n\n \n \n \n \n \n \n Phenotype networks reveal differences between practice and courtship displays in swallow-tailed manakins.\n \n \n \n \n\n\n \n Schaedler, L.; Ribeiro, P.; and Manica, L.\n\n\n \n\n\n\n Animal Behaviour, 171: 29-39. 1 2021.\n \n\n\n\n
\n\n\n\n \n \n $\"Phenotype$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Phenotype networks reveal differences between practice and courtship displays in swallow-tailed manakins},\n type = {article},\n year = {2021},\n pages = {29-39},\n volume = {171},\n websites = {https://doi.org/10.1016/j.anbehav.2020.11.002,https://linkinghub.elsevier.com/retrieve/pii/S0003347220303249},\n month = {1},\n publisher = {Elsevier Ltd},\n id = {aaef6282-b2a3-3d7e-a661-a2f95fbf8263},\n created = {2020-11-30T16:21:20.401Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-11-30T16:21:20.401Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Schaedler, L.M. and Ribeiro, P.H.L. and Manica, L.T.},\n doi = {10.1016/j.anbehav.2020.11.002},\n journal = {Animal Behaviour}\n}

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\n \n\n \n \n \n \n \n \n Phylogenomics of manakins (Aves: Pipridae) using alternative locus filtering strategies based on informativeness.\n \n \n \n \n\n\n \n Leite, R., N.; Kimball, R., T.; Braun, E., L.; Derryberry, E., P.; Hosner, P., A.; Derryberry, G., E.; Anciães, M.; McKay, J., S.; Aleixo, A.; Ribas, C., C.; Brumfield, R., T.; and Cracraft, J.\n\n\n \n\n\n\n Molecular Phylogenetics and Evolution, 155: 107013. 2 2021.\n \n\n\n\n
\n\n\n\n \n \n $\"Phylogenomics$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Phylogenomics of manakins (Aves: Pipridae) using alternative locus filtering strategies based on informativeness},\n type = {article},\n year = {2021},\n keywords = {ultraconserved elements},\n pages = {107013},\n volume = {155},\n websites = {https://linkinghub.elsevier.com/retrieve/pii/S1055790320302852},\n month = {2},\n id = {ab38f8d8-8ed8-3d66-8263-02d3cc8a4577},\n created = {2020-12-07T17:50:28.714Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-01-07T15:29:21.906Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Leite, Rafael N. and Kimball, Rebecca T. and Braun, Edward L. and Derryberry, Elizabeth P. and Hosner, Peter A. and Derryberry, Graham E. and Anciães, Marina and McKay, Jessica S. and Aleixo, Alexandre and Ribas, Camila C. and Brumfield, Robb T. and Cracraft, Joel},\n doi = {10.1016/j.ympev.2020.107013},\n journal = {Molecular Phylogenetics and Evolution}\n}

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\n \n\n \n \n \n \n \n \n Testosterone‐mediated behaviour shapes the emergent properties of social networks.\n \n \n \n \n\n\n \n Dakin, R.; Moore, I., T.; Horton, B., M.; Vernasco, B., J.; and Ryder, T., B.\n\n\n \n\n\n\n Journal of Animal Ecology, 90(1): 131-142. 1 2021.\n \n\n\n\n
\n\n\n\n \n \n $\"Testosterone‐mediated$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Testosterone‐mediated behaviour shapes the emergent properties of social networks},\n type = {article},\n year = {2021},\n keywords = {androgens,behavioural endocrinology,collective behaviour,cooperation,dynamic networks,social networks,testosterone},\n pages = {131-142},\n volume = {90},\n websites = {https://onlinelibrary.wiley.com/doi/abs/10.1111/1365-2656.13305,https://onlinelibrary.wiley.com/doi/10.1111/1365-2656.13305},\n month = {1},\n day = {6},\n id = {18270571-6c83-33ff-848d-c477ddf38b31},\n created = {2021-02-01T01:06:35.763Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T01:06:35.763Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Social networks can vary in their organization and dynamics, with implications for ecological and evolutionary processes. Understanding the mechanisms that drive social network dynamics requires integrating individual-level biology with comparisons across multiple social networks. Testosterone is a key mediator of vertebrate social behaviour and can influence how individuals interact with social partners. Although the effects of testosterone on individual behaviour are well established, no study has examined whether hormone-mediated behaviour can scale up to shape the emergent properties of social networks. We investigated the relationship between testosterone and social network dynamics in the wire-tailed manakin, a lekking bird species in which male–male social interactions form complex social networks. We used an automated proximity system to longitudinally monitor several leks and we quantified the social network structure at each lek. Our analysis examines three emergent properties of the networks—social specialization (the extent to which a network is partitioned into exclusive partnerships), network stability (the overall persistence of partnerships through time) and behavioural assortment (the tendency for like to associate with like). All three properties are expected to promote the evolution of cooperation. As the predictor, we analysed the collective testosterone of males within each social network. Social networks that were composed of high-testosterone dominant males were less specialized, less stable and had more negative behavioural assortment, after accounting for other factors. These results support our main hypothesis that individual-level hormone physiology can predict group-level network dynamics. We also observed that larger leks with more interacting individuals had more positive behavioural assortment, suggesting that small groups may constrain the processes of homophily and behaviour-matching. Overall, these results provide evidence that hormone-mediated behaviour can shape the broader architecture of social groups. Groups with high average testosterone exhibit social network properties that are predicted to impede the evolution of cooperation.},\n bibtype = {article},\n author = {Dakin, Roslyn and Moore, Ignacio T. and Horton, Brent M. and Vernasco, Ben J. and Ryder, T. Brandt},\n editor = {Farine, Damien},\n doi = {10.1111/1365-2656.13305},\n journal = {Journal of Animal Ecology},\n number = {1}\n}

\n

\n\n\n

\n Social networks can vary in their organization and dynamics, with implications for ecological and evolutionary processes. Understanding the mechanisms that drive social network dynamics requires integrating individual-level biology with comparisons across multiple social networks. Testosterone is a key mediator of vertebrate social behaviour and can influence how individuals interact with social partners. Although the effects of testosterone on individual behaviour are well established, no study has examined whether hormone-mediated behaviour can scale up to shape the emergent properties of social networks. We investigated the relationship between testosterone and social network dynamics in the wire-tailed manakin, a lekking bird species in which male–male social interactions form complex social networks. We used an automated proximity system to longitudinally monitor several leks and we quantified the social network structure at each lek. Our analysis examines three emergent properties of the networks—social specialization (the extent to which a network is partitioned into exclusive partnerships), network stability (the overall persistence of partnerships through time) and behavioural assortment (the tendency for like to associate with like). All three properties are expected to promote the evolution of cooperation. As the predictor, we analysed the collective testosterone of males within each social network. Social networks that were composed of high-testosterone dominant males were less specialized, less stable and had more negative behavioural assortment, after accounting for other factors. These results support our main hypothesis that individual-level hormone physiology can predict group-level network dynamics. We also observed that larger leks with more interacting individuals had more positive behavioural assortment, suggesting that small groups may constrain the processes of homophily and behaviour-matching. Overall, these results provide evidence that hormone-mediated behaviour can shape the broader architecture of social groups. Groups with high average testosterone exhibit social network properties that are predicted to impede the evolution of cooperation.\n

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\n \n 2020\n \n \n (16)\n \n \n

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\n \n\n \n \n \n \n \n \n Multilocus data of a manakin species reveal cryptic diversification moulded by vicariance.\n \n \n \n \n\n\n \n Reis, C., A.; Dias, C.; Araripe, J.; Aleixo, A.; Anciães, M.; Sampaio, I.; Schneider, H.; and Rêgo, P., S.\n\n\n \n\n\n\n Zoologica Scripta, 49(2): 129-144. 3 2020.\n \n\n\n\n
\n\n\n\n \n \n $\"Multilocus$ Paper\n \n \n \n $\"Multilocus$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Multilocus data of a manakin species reveal cryptic diversification moulded by vicariance},\n type = {article},\n year = {2020},\n keywords = {Amazonia,Lepidothrix,Neotropical,cryptic diversification,multilocus approach,phylogeography},\n pages = {129-144},\n volume = {49},\n websites = {https://onlinelibrary.wiley.com/doi/abs/10.1111/zsc.12395},\n month = {3},\n day = {15},\n id = {fee73264-99b9-3093-b990-467443b1b2a9},\n created = {2019-11-19T17:35:49.189Z},\n file_attached = {true},\n profile_id = {16c234eb-77bf-3706-99c8-02b9bd377d20},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.764Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {We used molecular tools and a multilocus approach to investigate the phylogeography of Lepidothrix coronata across most of its ample range. We sequenced six DNA fragments to produce phylogenies, molecular dating estimates, analyses of the dynamics of the demographic history of the species and a biogeographic analysis to estimate the events and changes in the ancestral distribution of the species. The results indicated the presence of four well-established lineages, with high levels of divergence. These lineages are delineated by well-defined geographic barriers, with one lineage, restricted to the west of the Andes, being the first to diverge from the complex. The other three lineages are exclusive to the Amazonian distribution of the species, with two being found north of the Amazon River, and the third, south of the Amazon. Some of the relationships found between these lineages were distinct from those described in previous studies. Important disagreements were found between the mtDNA phylogeny and that of the multilocus analysis, in relation to the lineages located to the west of the Andes. We propose that past introgression events may have influenced shifts in the relationships between lineages, despite the fact that the groups were well defined in both the phylogenies. The biogeographic analysis indicates that the lineages arose through successive vicariance events, which had a primary role in the diversification of the group. Two or three genetically structured subclades were also found within each Amazonian lineage, although these subclades are not isolated by an obvious geographic barrier.},\n bibtype = {article},\n author = {Reis, Camila Alves and Dias, Cleyssian and Araripe, Juliana and Aleixo, Alexandre and Anciães, Marina and Sampaio, Iracilda and Schneider, Horacio and Rêgo, Péricles Sena},\n doi = {10.1111/zsc.12395},\n journal = {Zoologica Scripta},\n number = {2}\n}

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\n \n\n \n \n \n \n \n \n Testosterone Modulates Status-Specific Patterns of Cooperation in a Social Network.\n \n \n \n \n\n\n \n Ryder, T., B.; Dakin, R.; Vernasco, B., J.; Evans, B., S.; Horton, B., M.; and Moore, I., T.\n\n\n \n\n\n\n The American Naturalist, 195(1): 82-94. 1 2020.\n \n\n\n\n
\n\n\n\n \n \n $\"Testosterone$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Testosterone Modulates Status-Specific Patterns of Cooperation in a Social Network},\n type = {article},\n year = {2020},\n keywords = {androgens,behavioral endocrinology,cooperation,phenotypic plasticity,social networks},\n pages = {82-94},\n volume = {195},\n websites = {https://www.journals.uchicago.edu/doi/10.1086/706236},\n month = {1},\n id = {7f0c93f0-a250-3594-a9d5-a06f56c8ffd0},\n created = {2020-01-08T18:03:25.839Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-01-08T18:03:25.839Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {AbstractStable cooperation requires plasticity whereby individuals are able to express competitive or cooperative behaviors depending on social context. To date, however, the physiological mechanisms that underlie behavioral variation in cooperative systems are poorly understood. We studied hormone-mediated behavior in the wire-tailed manakin (Pipra filicauda), a gregarious songbird whose cooperative partnerships and competition for status are both crucial for fitness. We used automated telemetry to monitor >36,000 cooperative interactions among male manakins over three field seasons, and we examined how circulating testosterone affects cooperation using >500 hormone samples. Observational data show that in nonterritorial floater males, high testosterone is associated with increased cooperative behaviors and subsequent ascension to territorial status. In territory-holding males, however, both observational and experimental evidence demonstrate that high testosterone antagonizes cooperation. Moreover, circ...},\n bibtype = {article},\n author = {Ryder, Thomas Brandt and Dakin, Roslyn and Vernasco, Ben J. and Evans, Brian S. and Horton, Brent M. and Moore, Ignacio T.},\n doi = {10.1086/706236},\n journal = {The American Naturalist},\n number = {1}\n}

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\n \n\n \n \n \n \n \n \n An atypical mating system in a neotropical manakin.\n \n \n \n \n\n\n \n Gaiotti, M., G.; Webster, M., S.; and Macedo, R., H.\n\n\n \n\n\n\n Royal Society Open Science, 7(1): 191548. 1 2020.\n \n\n\n\n
\n\n\n\n \n \n $\"An$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {An atypical mating system in a neotropical manakin},\n type = {article},\n year = {2020},\n keywords = {behaviour,ecology,evolution},\n pages = {191548},\n volume = {7},\n websites = {https://royalsocietypublishing.org/doi/10.1098/rsos.191548},\n month = {1},\n day = {8},\n id = {2a5f372e-8e18-30e4-bb2d-7fd59e3611af},\n created = {2020-01-08T18:04:52.889Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-01-08T18:04:52.889Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Gaiotti, Milene G. and Webster, Michael S. and Macedo, Regina H.},\n doi = {10.1098/rsos.191548},\n journal = {Royal Society Open Science},\n number = {1}\n}

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\n \n\n \n \n \n \n \n \n Androgenic modulation of extraordinary muscle speed creates a performance trade-off with endurance.\n \n \n \n \n\n\n \n Tobiansky, D., J.; Miles, M., C.; Goller, F.; and Fuxjager, M., J.\n\n\n \n\n\n\n The Journal of Experimental Biology, 223(11): jeb222984. 6 2020.\n \n\n\n\n
\n\n\n\n \n \n $\"Androgenic$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Androgenic modulation of extraordinary muscle speed creates a performance trade-off with endurance},\n type = {article},\n year = {2020},\n pages = {jeb222984},\n volume = {223},\n websites = {http://jeb.biologists.org/lookup/doi/10.1242/jeb.222984},\n month = {6},\n day = {1},\n id = {22213e7a-88bc-3a0d-9e90-d84974efee52},\n created = {2020-04-21T02:56:52.444Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-06-10T16:48:52.331Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Tobiansky, Daniel J and Miles, Meredith C and Goller, Franz and Fuxjager, Matthew J},\n doi = {10.1242/jeb.222984},\n journal = {The Journal of Experimental Biology},\n number = {11}\n}

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\n \n\n \n \n \n \n \n \n Reduced cooperative behavior as a cost of high testosterone in a lekking passerine bird.\n \n \n \n \n\n\n \n Vernasco, B., J.; Horton, B., M.; Moore, I., T.; and Ryder, T., B.\n\n\n \n\n\n\n Behavioral Ecology, 31(2): 401-410. 3 2020.\n \n\n\n\n
\n\n\n\n \n \n $\"Reduced$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Reduced cooperative behavior as a cost of high testosterone in a lekking passerine bird},\n type = {article},\n year = {2020},\n keywords = {androgens,cooperation,courtship,lek,manakin,testosterone},\n pages = {401-410},\n volume = {31},\n websites = {https://academic.oup.com/beheco/advance-article/doi/10.1093/beheco/arz201/5673236,https://academic.oup.com/beheco/article/31/2/401/5673236},\n month = {3},\n day = {20},\n id = {1819c53d-c535-36f4-b283-59509591806c},\n created = {2020-05-22T15:51:35.849Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-05-22T15:51:35.849Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Many studies have identified the reproductive benefits of cooperative behaviors, yet few have identified the mechanisms that underlie these behaviors. Mechanistic studies can inform our understanding of why some individuals are more or less cooperative, as well as identify the physiological constraints imposed upon the evolution of reproductive traits. Male wire-tailed manakins (Pipra filicauda) exhibit cooperative courtship behaviors and more cooperative territory holders have been shown to exhibit higher reproductive success. To begin to understand the proximate basis of cooperative display behaviors, we conducted both an observational study and an experimental study. Because coordinated courtship displays underlie this form of cooperation, our study also examined both the hormonal and social drivers of individual variation in courtship behavior more broadly (e.g., courtship display rates). Our observational study revealed that males with higher testosterone levels performed fewer cooperative display bouts. In addition, our experimental study demonstrated that the proportion of a male’s courtship displays that were cooperative decreased after being administered a testosterone-filled hormone implant. We found no relationship between an individual’s courtship display effort (i.e., display rate and time spent performing courtship displays) and circulating testosterone in either study. However, more cooperative males spent a greater proportion of time performing courtship displays than did less cooperative males, suggesting that testosterone may indirectly mediate courtship display behaviors by influencing a territory holder’s cooperative behavior. Overall, both our observational and experimental results suggest that reduced cooperative behavior is a cost of maintaining high levels of testosterone for territory-holding males.},\n bibtype = {article},\n author = {Vernasco, Ben J and Horton, Brent M and Moore, Ignacio T and Ryder, T Brandt},\n editor = {Taborsky, Michael},\n doi = {10.1093/beheco/arz201},\n journal = {Behavioral Ecology},\n number = {2}\n}

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\n \n\n \n \n \n \n \n \n Testosterone as a mediator of the tradeoff between cooperation and competition in the context of cooperative reproductive behaviors.\n \n \n \n \n\n\n \n Vernasco, B., J.; and Moore, I., T.\n\n\n \n\n\n\n General and Comparative Endocrinology, 288: 113369. 3 2020.\n \n\n\n\n
\n\n\n\n \n \n $\"Testosterone$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Testosterone as a mediator of the tradeoff between cooperation and competition in the context of cooperative reproductive behaviors},\n type = {article},\n year = {2020},\n keywords = {Androgens,Competition,Cooperation,Testosterone,Tradeoff},\n pages = {113369},\n volume = {288},\n websites = {https://doi.org/10.1016/j.ygcen.2019.113369%0Ahttps://linkinghub.elsevier.com/retrieve/pii/S0016648019304204,https://linkinghub.elsevier.com/retrieve/pii/S0016648019304204},\n month = {3},\n publisher = {Elsevier},\n id = {f2d1ad47-d184-338c-bc86-3463afb9eafc},\n created = {2020-05-22T15:51:36.027Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-05-22T15:51:36.027Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Vernasco, Ben J and Moore, Ignacio T},\n doi = {10.1016/j.ygcen.2019.113369},\n journal = {General and Comparative Endocrinology}\n}

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\n \n\n \n \n \n \n \n \n Behavioural flexibility in the courtship dance of golden-collared manakins, Manacus vitellinus.\n \n \n \n \n\n\n \n Janisch, J.; Perinot, E.; and Fusani, L.\n\n\n \n\n\n\n Animal Behaviour, 166: 61-71. 8 2020.\n \n\n\n\n
\n\n\n\n \n \n $\"Behavioural$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Behavioural flexibility in the courtship dance of golden-collared manakins, Manacus vitellinus},\n type = {article},\n year = {2020},\n keywords = {environmental disruption,mate choice,motor pattern,sequence learning},\n pages = {61-71},\n volume = {166},\n websites = {https://doi.org/10.1016/j.anbehav.2020.06.002,https://linkinghub.elsevier.com/retrieve/pii/S0003347220301615},\n month = {8},\n publisher = {Elsevier Ltd},\n id = {8032a126-d2d8-3a6f-ab68-e02040552e8d},\n created = {2020-07-06T14:37:25.948Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:25.410Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Courtship displays have been traditionally considered stereotyped behaviours. Many elaborate courtships are displayed in specific locations or in courts prepared by the displaying individuals. Sudden environmental events may alter the spatial structure of the displaying site, and individuals should be able to cope with such disruptions. In some mating systems, courtship is the only or main trait used in mate choice. This is the case in lek mating systems where male mating success is highly skewed and intense sexual selection may drive the evolution of elaborate courtship. The golden-collared manakin is a lekking species of the Neotropical forests. Males have an elaborate courtship display that includes a series of acrobatic jumps within a court delimited by small saplings. The courtship ends with a jump on one of the saplings, called the mating sapling, which invites the female to copulate. The display of each male follows a consistent routine that males establish at the beginning of the reproductive season. We hypothesized that males possess behavioural flexibility to adapt their courtship behaviour to unpredictable environmental changes. We investigated the effects of a sudden disruption of the court configuration by placing a piece of bark on the mating sapling. Males gradually established a new display sequence with an alternative mating sapling, demonstrating a high level of behavioural flexibility that suggests the involvement of motor learning. When the bark was removed, some males reverted to the original sequence, showing retention of the original display sequence. Our study provides evidence for the involvement of motor learning in the establishment and adjustment of elaborate courtship displays.},\n bibtype = {article},\n author = {Janisch, Judith and Perinot, Elisa and Fusani, Leonida},\n doi = {10.1016/j.anbehav.2020.06.002},\n journal = {Animal Behaviour}\n}

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\n \n\n \n \n \n \n \n Effects of forest fragmentation on the lekking behavior of White-throated Manakins in Central Amazonia.\n \n \n \n\n\n \n Tolentino, M.; and Anciães, M.\n\n\n \n\n\n\n Journal of Field Ornithology, 91(1): 31-43. 2020.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Effects of forest fragmentation on the lekking behavior of White-throated Manakins in Central Amazonia},\n type = {article},\n year = {2020},\n keywords = {Neotropics,Pipridae,conservation,courtship display,deforestation},\n pages = {31-43},\n volume = {91},\n id = {10cefa59-80b3-36c0-9b50-94a29990b54a},\n created = {2020-08-05T00:44:39.589Z},\n file_attached = {false},\n profile_id = {cf6c13d3-7287-3066-a460-17679728a37a},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-08-05T00:44:39.589Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Forest fragmentation can affect various aspects of population dynamics, but few investigators have assessed possible effects on the behavior of a species. Loss of habitat may limit population recruitment and abundance, which may alter breeding dynamics in forest remnants. We examined the lekking behavior of White-throated Manakins (Corapipo gutturalis) in a fragmented landscape to determine if forest fragmentation affected the spatial distribution of display courts and male behavior at courts. We captured and observed males at 19 courts located in 11 primary forests of different sizes in forest habitats of the Biological Dynamics of Forest Fragments Project area, an experimentally fragmented landscape located in the central Brazilian Amazon, and estimated their spatial distribution as the distance to the nearest court in the landscape. We quantified habitat loss using the proportion of forest cover surrounding courts and their distances to forest edges. No courts were detected in 1-ha forest fragments, suggesting direct effects from habitat loss following fragmentation that affected connectivity and thus recruitment and persistence of courts in the smallest fragments. The spatial distribution of display courts in forests larger than 10 ha remained unaltered, compared to display courts in continuous forests, but adult males were less numerous on courts with a higher percentage of forest cover and they displayed less on courts closer to forest edges. The spatial distribution of courts also contributed to variation in male social behavior, with more juvenile males present and adult males displaying at lower rates at more isolated courts. Although White-throated Manakins are locally common, the observed behavioral changes in response to habitat loss may affect their population dynamics. Our results show the importance of assessing behavioral changes in conservation programs and, in particular, of including biologically relevant measures of habitat loss in addressing its possible effects on species persistence in fragmented landscapes.},\n bibtype = {article},\n author = {Tolentino, Mariana and Anciães, Marina},\n doi = {10.1111/jofo.12327},\n journal = {Journal of Field Ornithology},\n number = {1}\n}

\n

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\n Forest fragmentation can affect various aspects of population dynamics, but few investigators have assessed possible effects on the behavior of a species. Loss of habitat may limit population recruitment and abundance, which may alter breeding dynamics in forest remnants. We examined the lekking behavior of White-throated Manakins (Corapipo gutturalis) in a fragmented landscape to determine if forest fragmentation affected the spatial distribution of display courts and male behavior at courts. We captured and observed males at 19 courts located in 11 primary forests of different sizes in forest habitats of the Biological Dynamics of Forest Fragments Project area, an experimentally fragmented landscape located in the central Brazilian Amazon, and estimated their spatial distribution as the distance to the nearest court in the landscape. We quantified habitat loss using the proportion of forest cover surrounding courts and their distances to forest edges. No courts were detected in 1-ha forest fragments, suggesting direct effects from habitat loss following fragmentation that affected connectivity and thus recruitment and persistence of courts in the smallest fragments. The spatial distribution of display courts in forests larger than 10 ha remained unaltered, compared to display courts in continuous forests, but adult males were less numerous on courts with a higher percentage of forest cover and they displayed less on courts closer to forest edges. The spatial distribution of courts also contributed to variation in male social behavior, with more juvenile males present and adult males displaying at lower rates at more isolated courts. Although White-throated Manakins are locally common, the observed behavioral changes in response to habitat loss may affect their population dynamics. Our results show the importance of assessing behavioral changes in conservation programs and, in particular, of including biologically relevant measures of habitat loss in addressing its possible effects on species persistence in fragmented landscapes.\n

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\n \n\n \n \n \n \n \n \n Display above courts of White‐throated manakins: A new view about its display behavior.\n \n \n \n \n\n\n \n Tolentino, M.; and Anciães, M.\n\n\n \n\n\n\n Ethology, 126(8): 844-850. 8 2020.\n \n\n\n\n
\n\n\n\n \n \n $\"Display$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Display above courts of White‐throated manakins: A new view about its display behavior},\n type = {article},\n year = {2020},\n keywords = {Corapipo gutturalis,female choice,female visitation,lek polygyny,male–male interaction,sexual selection},\n pages = {844-850},\n volume = {126},\n websites = {https://onlinelibrary.wiley.com/doi/abs/10.1111/eth.13027},\n month = {8},\n day = {30},\n id = {b8905aec-afca-3062-a248-cf6826c8d2a2},\n created = {2020-08-05T00:44:39.589Z},\n file_attached = {false},\n profile_id = {cf6c13d3-7287-3066-a460-17679728a37a},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-10-13T00:42:25.676Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {In order to breed successfully, organisms exhibit multiple strategies to enhance mate attraction, such as elaborate physical ornamentation, behavioral courtship displays, and social interactions, leading to competition or cooperation among potential mates. Within lek mating systems, species evolve under strong sexual selection, which promotes the evolution of exaggerated sexual traits such as male courtship displays. The White-throated manakin, Corapipo gutturalis, is a small Neotropical bird mating in leks where males display courtships to attract females. Their displays commonly take place on fallen logs on the forest floor, but there are descriptions of displays on higher forest stratum above the typical logs. In this study, we aimed at adding new behavioral information on the above-log displays and to compare them to log displays in their potential to attract females. For this, we conducted focal observations on seven display courts in two reproductive seasons for 193 hr and recorded above-log displays in four of the seven observed courts. Above-log displays were always performed in groups of up to four males from multiple ages and, on only two occasions, these displays ended on the display log. We recorded the same elements previously described during above-log displays for the species, besides the side-to-side slide that had not yet been registered for the species. Above-log displays included more males than log displays. However, there was no significant difference in the frequency of females visits to above-log displays or log displays and, likewise, the number of males engaging in the above-log displays did not determine female visits either. Thus, we found no evidence that above-log displays are more effective at attracting females than those on the log display. Since above-log displays are always in the presence of multiple males, we suggest that it may represent male–male competition to define male individuals accessing the display logs.},\n bibtype = {article},\n author = {Tolentino, Mariana and Anciães, Marina},\n editor = {Fusani, Leonida},\n doi = {10.1111/eth.13027},\n journal = {Ethology},\n number = {8}\n}

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\n \n\n \n \n \n \n \n \n Developing a transcriptomic framework for testing testosterone-mediated handicap hypotheses.\n \n \n \n \n\n\n \n Newhouse, D., J.; and Vernasco, B., J.\n\n\n \n\n\n\n General and Comparative Endocrinology, 298(July): 113577. 11 2020.\n \n\n\n\n
\n\n\n\n \n \n $\"Developing$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Developing a transcriptomic framework for testing testosterone-mediated handicap hypotheses},\n type = {article},\n year = {2020},\n keywords = {Co-expression network,Handicap hypothesis,Immunocompetence,Oxidative stress,RNA-seq,Testosterone},\n pages = {113577},\n volume = {298},\n websites = {https://doi.org/10.1016/j.ygcen.2020.113577,https://linkinghub.elsevier.com/retrieve/pii/S0016648020303300},\n month = {11},\n publisher = {Elsevier},\n id = {2108f454-4936-3b8d-a423-3398aa85d28a},\n created = {2020-08-18T17:45:06.123Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-08-18T17:45:06.123Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Sexually selected traits are hypothesized to be honest signals of individual quality due to the costs associated with their maintenance, development, and/or production. Testosterone, a sex steroid associated with the development and/or production of sexually selected traits, has been proposed to enforce the honesty of sexually selected traits via its immunosuppressive effects (i.e., the Immunocompetence Handicap Hypothesis) and/or by influencing an individual's exposure/susceptibility to oxidative stress (i.e., the Oxidation Handicap Hypothesis). Previous work testing these hypotheses has primarily focused on physiological measurements of immunity or oxidative stress, but little is known about the molecular pathways by which testosterone could influence immunity and/or oxidative stress pathways. To further understand the transcriptomic consequences of experimentally elevated testosterone in the context of handicap hypotheses, we used previously published RNA-seq data from studies that measured the transcriptome of individuals treated with either a testosterone-filled or an empty (i.e., control) implant. Two studies encompassing three species of bird and three tissue types fit our selection criteria and we reanalyzed the data using weighted gene co-expression network analysis. Testosterone-treated individuals exhibited signatures of immunosuppression and our results describe the molecular pathways underlying this effect. We also provide some evidence to suggest that the transcriptomic signature of immunosuppression is evolutionarily conserved between the three species. While our results provide no evidence to suggest testosterone mediates handicaps via pathways associated with oxidative stress, they do support the hypothesis that testosterone enforces the honesty of sexually-selected traits by influencing an individual's immunocompetence. Overall, this study develops a framework for testing testosterone-mediated handicap hypotheses and provides guidelines for future integrative and comparative studies focused on the proximate mechanisms mediating sexually selected traits.},\n bibtype = {article},\n author = {Newhouse, Daniel J. and Vernasco, Ben J.},\n doi = {10.1016/j.ygcen.2020.113577},\n journal = {General and Comparative Endocrinology},\n number = {July}\n}

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\n\n\n

\n Sexually selected traits are hypothesized to be honest signals of individual quality due to the costs associated with their maintenance, development, and/or production. Testosterone, a sex steroid associated with the development and/or production of sexually selected traits, has been proposed to enforce the honesty of sexually selected traits via its immunosuppressive effects (i.e., the Immunocompetence Handicap Hypothesis) and/or by influencing an individual's exposure/susceptibility to oxidative stress (i.e., the Oxidation Handicap Hypothesis). Previous work testing these hypotheses has primarily focused on physiological measurements of immunity or oxidative stress, but little is known about the molecular pathways by which testosterone could influence immunity and/or oxidative stress pathways. To further understand the transcriptomic consequences of experimentally elevated testosterone in the context of handicap hypotheses, we used previously published RNA-seq data from studies that measured the transcriptome of individuals treated with either a testosterone-filled or an empty (i.e., control) implant. Two studies encompassing three species of bird and three tissue types fit our selection criteria and we reanalyzed the data using weighted gene co-expression network analysis. Testosterone-treated individuals exhibited signatures of immunosuppression and our results describe the molecular pathways underlying this effect. We also provide some evidence to suggest that the transcriptomic signature of immunosuppression is evolutionarily conserved between the three species. While our results provide no evidence to suggest testosterone mediates handicaps via pathways associated with oxidative stress, they do support the hypothesis that testosterone enforces the honesty of sexually-selected traits by influencing an individual's immunocompetence. Overall, this study develops a framework for testing testosterone-mediated handicap hypotheses and provides guidelines for future integrative and comparative studies focused on the proximate mechanisms mediating sexually selected traits.\n

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\n \n\n \n \n \n \n \n \n Individual variation in feather corticosterone levels and its influence on haemosporidian infection in a Neotropical bird.\n \n \n \n \n\n\n \n Bosholn, M.; Anciães, M.; Gil, D.; Weckstein, J., D.; Dispoto, J., H.; and Fecchio, A.\n\n\n \n\n\n\n Ibis, 162(1): 215-226. 1 2020.\n \n\n\n\n
\n\n\n\n \n \n $\"Individual$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Individual variation in feather corticosterone levels and its influence on haemosporidian infection in a Neotropical bird},\n type = {article},\n year = {2020},\n keywords = {Amazon,Haemoproteus,Lepidothrix,Leucocytozoon,Plasmodium,autoecology,avian ecophysiology,glucocorticoid},\n pages = {215-226},\n volume = {162},\n websites = {https://onlinelibrary.wiley.com/doi/abs/10.1111/ibi.12709},\n month = {1},\n day = {10},\n id = {57f6d1d6-6523-30ef-89b5-372a96a13552},\n created = {2020-12-07T17:50:28.483Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-12-07T17:50:28.483Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Corticosterone (CORT) is the main glucocorticoid hormone of amphibians, reptiles, birds and some mammals. This hormone may have evolved as an adaptive metabolic mechanism, in part because increased concentrations of CORT are essential for individuals to manage energy resources and thus cope with negative perturbations such as predation and storms. The benefits of CORT are offset by costs, because elevated levels can suppress inflammatory responses of individuals, making them more susceptible to parasites and pathogens. In this study, we investigated the relationships between feather CORT levels, infection status and diversity of haemosporidian parasites in the Blue-crowned Manakin Lepidothrix coronata, considering possible effects related to the sex and age of individuals. We predicted higher levels of feather CORT in infected individuals. We observed that feather CORT levels were similar among individuals of different sexes and ages. Although haemosporidian infection status did not vary among sexes, occurrence probability was higher among younger individuals, which may indicate that the less developed immune system of these individuals makes them more susceptible to avian malaria. Contrary to expectations, we found that feather CORT levels were not associated with the infection status and diversity of haemosporidian parasites. That haemosporidian occurrence probability does not increase with elevated feather CORT levels suggests that individuals are not immunosuppressed by elevated levels of this hormone, at least to the extent that feather CORT truly reflects individual differences in the level of this hormone.},\n bibtype = {article},\n author = {Bosholn, Mariane and Anciães, Marina and Gil, Diego and Weckstein, Jason D. and Dispoto, Janice H. and Fecchio, Alan},\n doi = {10.1111/ibi.12709},\n journal = {Ibis},\n number = {1}\n}

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\n \n\n \n \n \n \n \n \n Analyses of plumage coloration and genetic variation confirm the hybridization of Pipra fasciicauda and Pipra aureola in the Brazilian Amazon basin.\n \n \n \n \n\n\n \n Sampaio, L.; Ferraz, D., O.; da Costa, A., C., M.; Aleixo, A.; Cerqueira, P., V.; Araripe, J.; and do Rêgo, P., S.\n\n\n \n\n\n\n Journal of Ornithology, 161(2): 503-508. 4 2020.\n \n\n\n\n
\n\n\n\n \n \n $\"Analyses$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Analyses of plumage coloration and genetic variation confirm the hybridization of Pipra fasciicauda and Pipra aureola in the Brazilian Amazon basin},\n type = {article},\n year = {2020},\n keywords = {Hybrids,Intrageneric hybridization,Introgression,Manakins,Pipridae,Secondary contact},\n pages = {503-508},\n volume = {161},\n websites = {https://doi.org/10.1007/s10336-020-01744-1,http://link.springer.com/10.1007/s10336-020-01744-1},\n month = {4},\n publisher = {Springer Berlin Heidelberg},\n day = {17},\n id = {d7ba163a-1bcd-3dce-b3fd-1eaa220b23bd},\n created = {2020-12-07T17:50:28.486Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-12-07T17:50:28.486Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The present study aimed to confirm the occurrence of a hybridization event between the band-tailed manakin (Pipra fasciicauda) and the crimson-hooded manakin (Pipra aureola), based on the existence of a specimen that presents morphological traits of both taxa. We analyzed 297 taxidermized skins of adult males of the two species, including the potential hybrid. We also analyzed the mitochondrial (ND2, ND3 e COI) and nuclear (FGB-I5, MB-I2 e GAPDH-I3) genes of 12 adult specimens of the two taxa, diagnosed phenotypically, in addition to the potential hybrid. The analyses of the plumage indicated that the potential hybrid has an intermediate pattern of white banding on the tail that is less extensive than that found in Pipra fasciicauda, but that its other phenotypic traits are characteristic of Pipra aureola. The molecular topologies revealed two clades, one that groups P. aureola together with the potential hybrid, and the other that corresponds to P. fasciicauda. These findings allowed us to confirm the occurrence of a process of hybridization and potential introgression through secondary events in the P. aureola lineage.},\n bibtype = {article},\n author = {Sampaio, Larissa and Ferraz, Dnilson Oliveira and da Costa, Ana Carolina Moreira and Aleixo, Alexandre and Cerqueira, Pablo Vieira and Araripe, Juliana and do Rêgo, Péricles Sena},\n doi = {10.1007/s10336-020-01744-1},\n journal = {Journal of Ornithology},\n number = {2}\n}

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\n \n\n \n \n \n \n \n First documented record of Flame-crowned Manakin Heterocercus linteatus in Peru, with notes on moult and habitat.\n \n \n \n\n\n \n Zhou, W.; Chalco, M., S.; Ketola, C., T.; and Kirkby, C.\n\n\n \n\n\n\n Cotinga, 42: 101-103. 2020.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {First documented record of Flame-crowned Manakin Heterocercus linteatus in Peru, with notes on moult and habitat.},\n type = {article},\n year = {2020},\n pages = {101-103},\n volume = {42},\n id = {2d8366a7-b015-314a-af2e-a09c63953947},\n created = {2020-12-07T17:50:28.776Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-12-07T17:50:28.776Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {El Saltarín Corona de Fuego Heterocercus linteatus es una especie conocida hasta hace poco por solo tres reportes visuales en Perú. En este estudio, reportamos el primer registro documentado de esta especie en Perú, junto con información de la muda de un individuo capturado en un bosque de aguas negras y arenas blancas. Este hábitat poco extenso, cuenta con aves raras como H. linteatus. Sugerimos que H. linteatus podría ser una especialista que prefiere aguas negras y arenas blancas, aunque también podría utilizar otros hábitats cuando ciertos elementos del ambiente son similares al hábitat de su preferencia. Enfatizamos la importancia de conservar bosques de aguas negras y arenas blancas, debido a la composición única de su avifauna.},\n bibtype = {article},\n author = {Zhou, Wenyi and Chalco, Marilyn Solís and Ketola, Christopher Tobias and Kirkby, Christopher},\n journal = {Cotinga}\n}

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\n \n\n \n \n \n \n \n \n Multilocus data of a manakin species reveal cryptic diversification moulded by vicariance.\n \n \n \n \n\n\n \n Reis, C., A.; Dias, C.; Araripe, J.; Aleixo, A.; Anciães, M.; Sampaio, I.; Schneider, H.; and Rêgo, P., S.\n\n\n \n\n\n\n Zoologica Scripta, 49(2): 129-144. 3 2020.\n \n\n\n\n
\n\n\n\n \n \n $\"Multilocus$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Multilocus data of a manakin species reveal cryptic diversification moulded by vicariance},\n type = {article},\n year = {2020},\n keywords = {Amazonia,Lepidothrix,Neotropical,cryptic diversification,multilocus approach,phylogeography},\n pages = {129-144},\n volume = {49},\n websites = {https://onlinelibrary.wiley.com/doi/abs/10.1111/zsc.12395},\n month = {3},\n day = {15},\n id = {4f0ecd6f-b5ea-35d0-acc1-93842faeaf32},\n created = {2020-12-07T17:50:28.953Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-12-07T17:50:28.953Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {We used molecular tools and a multilocus approach to investigate the phylogeography of Lepidothrix coronata across most of its ample range. We sequenced six DNA fragments to produce phylogenies, molecular dating estimates, analyses of the dynamics of the demographic history of the species and a biogeographic analysis to estimate the events and changes in the ancestral distribution of the species. The results indicated the presence of four well-established lineages, with high levels of divergence. These lineages are delineated by well-defined geographic barriers, with one lineage, restricted to the west of the Andes, being the first to diverge from the complex. The other three lineages are exclusive to the Amazonian distribution of the species, with two being found north of the Amazon River, and the third, south of the Amazon. Some of the relationships found between these lineages were distinct from those described in previous studies. Important disagreements were found between the mtDNA phylogeny and that of the multilocus analysis, in relation to the lineages located to the west of the Andes. We propose that past introgression events may have influenced shifts in the relationships between lineages, despite the fact that the groups were well defined in both the phylogenies. The biogeographic analysis indicates that the lineages arose through successive vicariance events, which had a primary role in the diversification of the group. Two or three genetically structured subclades were also found within each Amazonian lineage, although these subclades are not isolated by an obvious geographic barrier.},\n bibtype = {article},\n author = {Reis, Camila Alves and Dias, Cleyssian and Araripe, Juliana and Aleixo, Alexandre and Anciães, Marina and Sampaio, Iracilda and Schneider, Horacio and Rêgo, Péricles Sena},\n doi = {10.1111/zsc.12395},\n journal = {Zoologica Scripta},\n number = {2}\n}

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\n \n\n \n \n \n \n \n \n Individual–resource networks reveal distinct fruit preferences of selective individuals from a generalist population of the Helmeted Manakin.\n \n \n \n \n\n\n \n Pires, L., P.; and Melo, C.\n\n\n \n\n\n\n Ibis, 162(3): 713-722. 7 2020.\n \n\n\n\n
\n\n\n\n \n \n $\"Individual–resource$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Individual–resource networks reveal distinct fruit preferences of selective individuals from a generalist population of the Helmeted Manakin},\n type = {article},\n year = {2020},\n keywords = {Optimal Diet Theory,ecological interactions,ecology of individuals,frugivory,trophic niche},\n pages = {713-722},\n volume = {162},\n websites = {https://onlinelibrary.wiley.com/doi/abs/10.1111/ibi.12794},\n month = {7},\n day = {26},\n id = {e830301e-dea3-3649-958a-6b9aad2193e1},\n created = {2020-12-07T17:50:29.038Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-12-07T17:50:29.038Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Ecological studies traditionally assume that generalist populations are homogeneous in the use of food resources, but empirical evidence supports that intraspecific differences in morphology, physiology and behaviour affect foraging decisions and promote diet variation among individuals. Furthermore, the temporal availability of resources may shape the dynamics of population trophic niche, which ultimately depends on individual niches. In this study, we investigated the seasonal changes in individual-based networks between the Helmeted Manakin Antilophia galeata, a generalist frugivorous bird, and fruiting plants, following theoretical models of interindividual diet variation based on the Optimal Diet Theory. Selective individuals were the majority of the generalist population of the Helmeted Manakin. Our results suggest that the structure of the individual-resource networks varied seasonally. We found that modularity was higher than expected by chance in the wet season, when fruit availability was also higher. In the dry season, modules disappeared and the network became more nested. These findings are consistent with the Distinct Preference Model of diet variation. We suggest that downscaling ecological networks to the individual level may reveal emergent properties that, albeit existent, are not evident in species–resources networks.},\n bibtype = {article},\n author = {Pires, Luís Paulo and Melo, Celine},\n doi = {10.1111/ibi.12794},\n journal = {Ibis},\n number = {3}\n}

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\n \n\n \n \n \n \n \n \n Longitudinal dynamics and behavioural correlates of telomeres in male wire‐tailed manakins.\n \n \n \n \n\n\n \n Vernasco, B., J.; Dakin, R.; Majer, A., D.; Haussmann, M., F.; Brandt Ryder, T.; and Moore, I., T.\n\n\n \n\n\n\n Functional Ecology,1365-2435.13715. 12 2020.\n \n\n\n\n
\n\n\n\n \n \n $\"Longitudinal$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Longitudinal dynamics and behavioural correlates of telomeres in male wire‐tailed manakins},\n type = {article},\n year = {2020},\n keywords = {lek,manakin,proximity datalogging,radio telemetry,social behavior,social network,state-dependent behavior,telomere dynamics,telomeres},\n pages = {1365-2435.13715},\n websites = {https://besjournals.onlinelibrary.wiley.com/doi/abs/10.1111/1365-2435.13715,https://onlinelibrary.wiley.com/doi/10.1111/1365-2435.13715},\n month = {12},\n day = {8},\n id = {440c0a29-62ea-312f-9681-bedba669eedf},\n created = {2021-02-01T01:06:35.764Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T01:06:35.764Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n citation_key = {https://doi.org/10.1111/1365-2435.13715},\n source_type = {article},\n private_publication = {false},\n abstract = {Abstract Building on the predictions of state-dependent life history theory, telomeres are hypothesized to either correlate with or function as an adaptive, proximate mediator of an individual’s behavior and life-history strategy. To further understand the relationship between telomeres, behavior, and life-history strategies, we measured male behavior, telomere lengths, and telomere dynamics in a free-living population of known-age, male wire-tailed manakins (Pipra filicauda). Male wire-tailed manakins perform coordinated displays with other males at leks and these displays form the basis of long-term coalition partnerships. Males exhibit consistent individual differences in the number of social partners within their social network and the frequency of social interactions. Male sociality is also positively correlated with both social rise and reproductive success. We measured male behavior using a telemetry-based, proximity datalogging system and blood telomere lengths were quantified using qPCR. We examined the relationships between telomere length, telomere dynamics, social status, and male behavior. We also quantified the repeatability of telomere lengths, examined age-related changes in telomere length, and tested for instances of telomere elongation that exceed residual error in telomere length. Telomere length was found to be highly repeatable. More social males exhibited shorter telomeres and higher rates of telomere attrition. Telomeres did not significantly vary with age within or between individuals in either of the male social classes. Two out of 25 individuals exhibited patterns telomere elongation that exceeded residual error in telomere measurements. Here we show that telomeres consistently vary between male wire-tailed manakins and these differences are related to variation in male social behavior. In this relatively long-lived species, telomeres also appear to be flexible traits that can increase or decrease in length. Overall, this study provides observational support for the hypothesis that telomeres act as a molecular marker that relates to behavior in a state-dependent manner. We also provide insight into the molecular consequences of individual variation in male social behavior.},\n bibtype = {article},\n author = {Vernasco, Ben J and Dakin, Roslyn and Majer, Ariana D and Haussmann, Mark F and Brandt Ryder, T. and Moore, Ignacio T},\n editor = {Angelier, Frédéric},\n doi = {10.1111/1365-2435.13715},\n journal = {Functional Ecology}\n}

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\n Abstract Building on the predictions of state-dependent life history theory, telomeres are hypothesized to either correlate with or function as an adaptive, proximate mediator of an individual’s behavior and life-history strategy. To further understand the relationship between telomeres, behavior, and life-history strategies, we measured male behavior, telomere lengths, and telomere dynamics in a free-living population of known-age, male wire-tailed manakins (Pipra filicauda). Male wire-tailed manakins perform coordinated displays with other males at leks and these displays form the basis of long-term coalition partnerships. Males exhibit consistent individual differences in the number of social partners within their social network and the frequency of social interactions. Male sociality is also positively correlated with both social rise and reproductive success. We measured male behavior using a telemetry-based, proximity datalogging system and blood telomere lengths were quantified using qPCR. We examined the relationships between telomere length, telomere dynamics, social status, and male behavior. We also quantified the repeatability of telomere lengths, examined age-related changes in telomere length, and tested for instances of telomere elongation that exceed residual error in telomere length. Telomere length was found to be highly repeatable. More social males exhibited shorter telomeres and higher rates of telomere attrition. Telomeres did not significantly vary with age within or between individuals in either of the male social classes. Two out of 25 individuals exhibited patterns telomere elongation that exceeded residual error in telomere measurements. Here we show that telomeres consistently vary between male wire-tailed manakins and these differences are related to variation in male social behavior. In this relatively long-lived species, telomeres also appear to be flexible traits that can increase or decrease in length. Overall, this study provides observational support for the hypothesis that telomeres act as a molecular marker that relates to behavior in a state-dependent manner. We also provide insight into the molecular consequences of individual variation in male social behavior.\n

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\n \n 2019\n \n \n (21)\n \n \n

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\n \n\n \n \n \n \n \n \n The heart of an acrobatic bird.\n \n \n \n \n\n\n \n Barske, J.; Eghbali, M.; Kosarussavadi, S.; Choi, E.; and Schlinger, B.\n\n\n \n\n\n\n Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 228(October 2018): 9-17. 2 2019.\n \n\n\n\n
\n\n\n\n \n \n $\"The$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {The heart of an acrobatic bird},\n type = {article},\n year = {2019},\n keywords = {Androgen dependent gene regulation,Avian courtship,Cardiovascular adaptations,Heart rate,Manakin,Steroid sensitivity},\n pages = {9-17},\n volume = {228},\n websites = {https://doi.org/10.1016/j.cbpa.2018.10.010,https://linkinghub.elsevier.com/retrieve/pii/S1095643318302514},\n month = {2},\n publisher = {Elsevier},\n id = {8b73993e-e4dc-3101-8542-b4143b3d2e32},\n created = {2019-01-22T18:18:43.039Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-01-22T18:18:43.039Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The courtship behavior of some species of birds can be energetically demanding, but it is unknown if cardiovascular specializations enable such behaviors. While performing a highly acrobatic courtship dance, heart rate in male golden-collared manakins increases briefly to 1300 beats per minute, among the highest heart rates recorded in any bird or mammal. We hypothesize that male manakins have enhanced cardiovascular capabilities to meet these demands on the heart. Using histological and molecular techniques, we examined manakin heart structure as well as expression of genes involved in Ca2+ handling, action potential duration, steroidal signaling and cardiac growth. These measures were also made on the hearts of zebra finches, a similar-sized bird with limited cardiovascular demands. Compared to the zebra finch, the manakin had a significantly thicker left ventricular (LV) muscle (cross-sectional thickness of the free LV wall and septum) with a smaller LV chamber. In addition, compared to zebra finches, manakin hearts had significantly greater gene expression of ryanodine receptors as well as androgen receptors. Testosterone (T) treatment of non-breeding manakins (with low T) increased gene expression of the Ca2+ pump SERCA. These observations suggest that hearts of breeding male manakins require specialized Ca2+ handling and androgens may facilitate manakin cardiovascular function.},\n bibtype = {article},\n author = {Barske, J. and Eghbali, M. and Kosarussavadi, S. and Choi, E. and Schlinger, B.A.},\n doi = {10.1016/j.cbpa.2018.10.010},\n journal = {Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology},\n number = {October 2018}\n}

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\n \n\n \n \n \n \n \n \n Sex-specific effects of testosterone on vocal output in a tropical suboscine bird.\n \n \n \n \n\n\n \n Chiver, I.; and Schlinger, B., A.\n\n\n \n\n\n\n Animal Behaviour, 148: 105-112. 2019.\n \n\n\n\n
\n\n\n\n \n \n $\"Sex-specific$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n\n\n\n

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@article{\n title = {Sex-specific effects of testosterone on vocal output in a tropical suboscine bird},\n type = {article},\n year = {2019},\n keywords = {acoustic characteristics},\n pages = {105-112},\n volume = {148},\n websites = {https://www.sciencedirect.com/science/article/pii/S0003347218303701?fbclid=IwAR0Z5DMKLx16nKITPlu4mxPR06Rj1dk9uosNen0Fr64efwOifBlOxvf2zW8},\n publisher = {Elsevier Ltd},\n id = {b2ccda9b-d1d5-343f-8d65-036d91616718},\n created = {2019-01-22T18:18:43.257Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-01-22T18:18:43.257Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Vocal signals are important in territoriality and mate attraction across animal taxa. Vocalizations are particularly elaborate in some groups, such as songbirds, which learn their songs, but much remains to be known about the physiological mechanisms that produce variation, especially in vocalizations of nonlearners. We address the extent that androgen treatment of female and juvenile golden-collared manakins, Manacus vitellinus, activate the male-like ‘chee-poo’ vocalization to determine (1) the extent that the vocal circuitry is developed and sensitive to androgens in females and (2) to identify the characteristics, including finer acoustic features, of vocal behaviour that are influenced by androgens in females and young males. We analysed recordings of nonbreeding females and juvenile males given implants containing testosterone (T) or blank implants during a period of 3 weeks in an outdoor aviary in Panama. T-treated females, but not control females, produced chee-poos, and their vocalizations showed consistent differences in acoustic features from those of males. This indicates that the neuromuscular systems are well developed or relatively rapidly developed in response to T administration in females. Both T-treated and control juvenile males produced chee-poos, although vocal production was higher in the treatment group. Surprisingly, T treatment of juvenile males resulted in chee-poos with increased acoustic similarity to those of females, such as increased duration and frequency bandwidth. These features may indicate an important role for chee-poos in aggressive interactions. Future work will address the contributions of central and peripheral components in vocal variation in golden-collared manakins.},\n bibtype = {article},\n author = {Chiver, Ioana and Schlinger, Barney A.},\n doi = {10.1016/J.ANBEHAV.2018.12.011},\n journal = {Animal Behaviour}\n}

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\n \n\n \n \n \n \n \n \n Acoustic signals and repertoire complexity in Swallow-tailed Manakins (Chiroxiphia caudata, Aves: Pipridae).\n \n \n \n \n\n\n \n Schaedler, L., M.; Ribeiro, P., H., L.; Guaraldo, A., C.; and Manica, L., T.\n\n\n \n\n\n\n Bioacoustics, 00(00): 1-15. 1 2019.\n \n\n\n\n
\n\n\n\n \n \n $\"Acoustic$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Acoustic signals and repertoire complexity in Swallow-tailed Manakins (Chiroxiphia caudata, Aves: Pipridae)},\n type = {article},\n year = {2019},\n keywords = {Communication,birds,mechanical sound,multimodal signal,sexual selection},\n pages = {1-15},\n volume = {00},\n websites = {https://www.tandfonline.com/doi/full/10.1080/09524622.2018.1563870},\n month = {1},\n publisher = {Taylor & Francis},\n day = {8},\n id = {dd20b5e4-e283-372c-9164-bdac38cd90bc},\n created = {2019-02-05T13:51:17.445Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-03-16T17:35:37.838Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Schaedler, Laura M. and Ribeiro, Pedro H. L. and Guaraldo, André C. and Manica, Lilian T.},\n doi = {10.1080/09524622.2018.1563870},\n journal = {Bioacoustics},\n number = {00}\n}

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\n \n\n \n \n \n \n \n \n Variation within and between courts in visual components of Swallow-tailed Manakin (Chiroxiphia caudata) display.\n \n \n \n \n\n\n \n Ribeiro, P., H., L.; Guaraldo, A., C.; Macedo, R., H.; and Manica, L., T.\n\n\n \n\n\n\n Journal of Ornithology, (0123456789). 2 2019.\n \n\n\n\n
\n\n\n\n \n \n $\"Variation$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Variation within and between courts in visual components of Swallow-tailed Manakin (Chiroxiphia caudata) display},\n type = {article},\n year = {2019},\n keywords = {Atlantic forest,Lekking,Motor display,Pipridae,Sex,atlantic forest,lekking,motor display,pipridae,sexual selection},\n websites = {http://link.springer.com/10.1007/s10336-019-01627-0},\n month = {2},\n publisher = {Springer Berlin Heidelberg},\n day = {1},\n id = {754b8f49-b8a1-31e7-b7a9-a8711551ba7b},\n created = {2019-02-05T13:51:17.447Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-03-16T17:35:37.851Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Ribeiro, Pedro H. L. and Guaraldo, André C. and Macedo, Regina H. and Manica, Lilian T.},\n doi = {10.1007/s10336-019-01627-0},\n journal = {Journal of Ornithology},\n number = {0123456789}\n}

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\n \n\n \n \n \n \n \n \n Artificial incubation does not affect the post-hatch development, health, or survival of the Lance-tailed Manakin (Chiroxiphia lanceolata), a tropical passerine.\n \n \n \n \n\n\n \n Jones, B., C.; and DuVal, E., H.\n\n\n \n\n\n\n The Condor, 121(2): 1-10. 5 2019.\n \n\n\n\n
\n\n\n\n \n \n $\"Artificial$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Artificial incubation does not affect the post-hatch development, health, or survival of the Lance-tailed Manakin (Chiroxiphia lanceolata), a tropical passerine},\n type = {article},\n year = {2019},\n keywords = {afecta el desarrollo,avian,bird,chiroxiphia lanceolata,conservación,eclosión de,fledging,growth rate,huevos de aves es,la incubación artificial de,la incubación artificial no,la salud o la,manejo en zoológico,nestling,recruitment,supervivencia posterior a la,un paseriforme tropical,usada en investigaciones científicas},\n pages = {1-10},\n volume = {121},\n websites = {https://academic.oup.com/condor/article/doi/10.1093/condor/duy022/5393600},\n month = {5},\n day = {1},\n id = {be2060b5-a6c3-3324-b33f-cb09546042f3},\n created = {2019-04-05T03:41:02.021Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-01-08T18:53:38.040Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Artificial incubation of avian eggs is used in scientific research, conservation, zoo husbandry, and the commercial poultry industry. However, whether artificial incubation negatively impacts post-hatch nestling phenotypes and survival compared to naturally incubated young has not been explicitly tested. Here, we assess whether nestlings artificially incubated as eggs and returned to their natal nest after hatching experienced negative impacts in development, health, and survival. From 2007 to 2017, we measured mass, mass growth rate, tarsus length, tarsus growth rate, external lesions, ejection from the nest, fledging success, and recruitment of Lance-tailed Manakin (Chiroxiphia lanceolata) nestlings from 209 nests where 1 of 2 eggs was artificially incubated, along with 230 unmanipulated nests. We found no statistically significant difference in the development, health, and survival among nestlings artificially incubated as eggs, their naturally incubated nestmates, and nestlings from unmanipulated nests. Our results indicate that artificial incubation can be a safe and effective tool in the study of free-living birds.},\n bibtype = {article},\n author = {Jones, Blake Carlton and DuVal, Emily H.},\n doi = {10.1093/condor/duy022},\n journal = {The Condor},\n number = {2}\n}

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\n \n\n \n \n \n \n \n \n Chemical profiles reflect heterozygosity and seasonality in a tropical lekking passerine bird.\n \n \n \n \n\n\n \n Whittaker, D., J.; Kuzel, M.; Burrell, M., J.; Soini, H., A.; Novotny, M., V.; and DuVal, E., H.\n\n\n \n\n\n\n Animal Behaviour, 151: 67-75. 5 2019.\n \n\n\n\n
\n\n\n\n \n \n $\"Chemical$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n\n\n\n

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@article{\n title = {Chemical profiles reflect heterozygosity and seasonality in a tropical lekking passerine bird},\n type = {article},\n year = {2019},\n keywords = {chemical communication},\n pages = {67-75},\n volume = {151},\n websites = {https://linkinghub.elsevier.com/retrieve/pii/S0003347219300831},\n month = {5},\n id = {cc1a4745-6e56-3e06-a723-55577098f22e},\n created = {2019-04-05T03:41:02.041Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-04-05T03:41:02.041Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Whittaker, Danielle J and Kuzel, Meredith and Burrell, Mikayla J.E. and Soini, Helena A and Novotny, Milos V and DuVal, Emily H},\n doi = {10.1016/j.anbehav.2019.03.005},\n journal = {Animal Behaviour}\n}

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\n \n\n \n \n \n \n \n \n Sex and deception: a rare case of cheating in a lekking tropical bird.\n \n \n \n \n\n\n \n Boyle, W., A.; and Shogren, E., H.\n\n\n \n\n\n\n Journal of Ethology, (0123456789): 1-5. 4 2019.\n \n\n\n\n
\n\n\n\n \n \n $\"Sex$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Sex and deception: a rare case of cheating in a lekking tropical bird},\n type = {article},\n year = {2019},\n keywords = {Display,Male–male cooperation,Mating system,Sexual selection,display,male,male cooperation,mating system,sexual selection},\n pages = {1-5},\n websites = {http://link.springer.com/10.1007/s10164-019-00592-8},\n month = {4},\n publisher = {Springer Japan},\n day = {13},\n id = {e5d90c54-313e-311b-8d9a-cafb14c6fb2d},\n created = {2019-04-17T00:59:12.076Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-04-17T00:59:12.076Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Boyle, W. Alice and Shogren, Elsie H.},\n doi = {10.1007/s10164-019-00592-8},\n journal = {Journal of Ethology},\n number = {0123456789}\n}

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\n \n\n \n \n \n \n \n \n Apparent survival of tropical birds in a wet, premontane forest in Costa Rica.\n \n \n \n \n\n\n \n Shogren, E., H.; Jones, M., A.; Sandercock, B., K.; and Boyle, W., A.\n\n\n \n\n\n\n Journal of Field Ornithology, 0(0): jofo.12290. 3 2019.\n \n\n\n\n
\n\n\n\n \n \n $\"Apparent$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Apparent survival of tropical birds in a wet, premontane forest in Costa Rica},\n type = {article},\n year = {2019},\n keywords = {a,abiotic effects,capture-mark-recapture,central america,climate,factors shaping population dynamics,montane,of,precipitation,prevailing view is that,tropical birds remain poorly,tropical species typi-,understood},\n pages = {jofo.12290},\n volume = {0},\n websites = {https://onlinelibrary.wiley.com/doi/abs/10.1111/jofo.12290},\n month = {3},\n day = {25},\n id = {12061c58-7db2-3468-95b5-ab521b5c14fa},\n created = {2019-04-22T15:09:03.662Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-04-22T15:09:03.662Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Shogren, Elsie H. and Jones, Megan A. and Sandercock, Brett K. and Boyle, W. Alice},\n doi = {10.1111/jofo.12290},\n journal = {Journal of Field Ornithology},\n number = {0}\n}

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\n \n\n \n \n \n \n \n \n Characterization of the genetic diversity and population structure of the manakin genus Antilophia through the development and analysis of microsatellite markers.\n \n \n \n \n\n\n \n Souza, T., O.; Luna, L., W.; Araripe, J.; Melo, M., A., D.; Silva, W., A., G.; Schneider, H.; Sampaio, I.; and Rego, P., S.\n\n\n \n\n\n\n Journal of Ornithology, 1(0123456789): 6. 3 2019.\n \n\n\n\n
\n\n\n\n \n \n $\"Characterization$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Characterization of the genetic diversity and population structure of the manakin genus Antilophia through the development and analysis of microsatellite markers},\n type = {article},\n year = {2019},\n keywords = {Critically endangered,Effective population size,critically endangered,effective population size,genetic marker,recent divergence,simple sequence repeat},\n pages = {6},\n volume = {1},\n websites = {http://link.springer.com/10.1007/s10336-019-01655-w},\n month = {3},\n publisher = {Springer Berlin Heidelberg},\n day = {21},\n id = {5e40d95a-0836-31a2-9758-81b547bd974b},\n created = {2019-04-25T06:16:25.260Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T01:19:34.614Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The two species of the genus Antilophia, Antilophia bokermanni and Antilophia galeata, are found in environments that are undergoing extensive modification, which may be provoking the loss of their genetic diversity. Nine polymorphic microsatellite loci were characterized and analyzed in each of these species. The distribution of allele frequencies revealed two clusters that reflected the distinct genetic profile of each species. Observed levels of heterozygosity were low for each species, with the lowest allelic diversity found in the critically endangered A. bokermanni. The set of loci described here, in contrast with other genetic markers that have been analyzed previously, effectively diagnosed the genetic diversity of different populations of the two species. Keywords Critically endangered · Effective population size · Genetic marker · Recent divergence · Simple sequence repeat Zusammenfassung Charakterisierung der genetischen Diversität und der Populationsstruktur der Schnurrvögel-Gattung Antilophia mittels Mikrosatelliten Die Arten der Gattung Antilophia kommen in Lebensräumen vor, die stark gestört sind und Veränderungen unterworfen sind, was zu Verlust genetischer Diversität führen könnte. Wir untersuchten je neun polymorphe Mikrosatelliten-Loci der beiden Antilophia-Arten. Die Analyse der Häufigkeitsverteilung der Allele zeigte die Existenz von zwei Gruppen auf und spiegelt so die unterschiedlichen genetischen Profile beider Arten wieder. Beide Arten wiesen einen niedrigen Heterozygositätsgrad auf; die niedrigste Allel-Diversität wurde in der vom Aussterben bedrohten Art Antilophia bokermanni festgestellt. Es konnte nachgewiesen werden, dass die hier vorgestellten Loci zur Diagnose der tatsächlichen genetischen Diversität von Populationen der beiden Arten geeignet sind, im Gegensatz zu zuvor untersuchten genetischen Markern, die nicht in der Lage waren, diese Diversität zu bestimmen. Communicated by M. Wink. Electronic supplementary material The online version of this article (https ://doi.org/10.},\n bibtype = {article},\n author = {Souza, Thainara O and Luna, Leilton W. and Araripe, Juliana and Melo, Mauro A D and Silva, Weber A. G. and Schneider, Horacio and Sampaio, Iracilda and Rego, Péricles S.},\n doi = {10.1007/s10336-019-01655-w},\n journal = {Journal of Ornithology},\n number = {0123456789}\n}

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\n The two species of the genus Antilophia, Antilophia bokermanni and Antilophia galeata, are found in environments that are undergoing extensive modification, which may be provoking the loss of their genetic diversity. Nine polymorphic microsatellite loci were characterized and analyzed in each of these species. The distribution of allele frequencies revealed two clusters that reflected the distinct genetic profile of each species. Observed levels of heterozygosity were low for each species, with the lowest allelic diversity found in the critically endangered A. bokermanni. The set of loci described here, in contrast with other genetic markers that have been analyzed previously, effectively diagnosed the genetic diversity of different populations of the two species. Keywords Critically endangered · Effective population size · Genetic marker · Recent divergence · Simple sequence repeat Zusammenfassung Charakterisierung der genetischen Diversität und der Populationsstruktur der Schnurrvögel-Gattung Antilophia mittels Mikrosatelliten Die Arten der Gattung Antilophia kommen in Lebensräumen vor, die stark gestört sind und Veränderungen unterworfen sind, was zu Verlust genetischer Diversität führen könnte. Wir untersuchten je neun polymorphe Mikrosatelliten-Loci der beiden Antilophia-Arten. Die Analyse der Häufigkeitsverteilung der Allele zeigte die Existenz von zwei Gruppen auf und spiegelt so die unterschiedlichen genetischen Profile beider Arten wieder. Beide Arten wiesen einen niedrigen Heterozygositätsgrad auf; die niedrigste Allel-Diversität wurde in der vom Aussterben bedrohten Art Antilophia bokermanni festgestellt. Es konnte nachgewiesen werden, dass die hier vorgestellten Loci zur Diagnose der tatsächlichen genetischen Diversität von Populationen der beiden Arten geeignet sind, im Gegensatz zu zuvor untersuchten genetischen Markern, die nicht in der Lage waren, diese Diversität zu bestimmen. Communicated by M. Wink. Electronic supplementary material The online version of this article (https ://doi.org/10.\n

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\n \n\n \n \n \n \n \n \n Gene expression in the social behavior network of the wire-tailed manakin ( Pipra filicauda ) brain.\n \n \n \n \n\n\n \n Horton, B., M.; Ryder, T., B.; Moore, I., T.; and Balakrishnan, C., N.\n\n\n \n\n\n\n Genes, Brain and Behavior, (October 2018): e12560. 3 2019.\n \n\n\n\n
\n\n\n\n \n \n $\"Gene$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Gene expression in the social behavior network of the wire-tailed manakin ( Pipra filicauda ) brain},\n type = {article},\n year = {2019},\n keywords = {dominance,genome,songbird,systems biology,territoriality},\n pages = {e12560},\n websites = {http://doi.wiley.com/10.1111/gbb.12560},\n month = {3},\n day = {6},\n id = {d6187cb6-3c0b-352f-843f-7bc9f08c0765},\n created = {2019-05-07T18:07:04.195Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-05-07T18:07:04.195Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Abstract The vertebrate basal forebrain and midbrain contain a set of interconnected nuclei that control social behavior. Conserved anatomical structures and functions of these nuclei have now been documented among fish, amphibians, reptiles, birds and mammals, and these brain regions have come to be known as the vertebrate social behavior network (SBN). While it is known that nuclei (nodes) of the SBN are rich in steroid and neuropeptide activity linked to behavior, simultaneous variation in the expression of neuroendocrine genes among several SBN nuclei has not yet been described in detail. In this study, we use RNA‐seq to profile gene expression across seven brain regions representing five nodes of the vertebrate SBN in a passerine bird, the wire‐tailed manakin Pipra filicauda. Using weighted gene co‐expression network analysis (WGCNA), we reconstructed sets of coregulated genes, revealing striking patterns of variation in neuroendocrine gene expression across the SBN. We describe regional variation in gene networks comprising a broad set of hormone receptors, neuropeptides, steroidogenic enzymes, catecholamines, and other neuroendocrine signaling molecules. Our findings reveal heterogeneous patterns of brain gene expression across nodes of the avian SBN and provide a foundation for future analyses of how the regulation of gene networks may mediate social behavior. These results highlight the importance of region‐specific sampling in studies of the mechanisms of behavior.},\n bibtype = {article},\n author = {Horton, Brent M. and Ryder, Thomas B. and Moore, Ignacio T. and Balakrishnan, Christopher N.},\n doi = {10.1111/gbb.12560},\n journal = {Genes, Brain and Behavior},\n number = {October 2018}\n}

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\n \n\n \n \n \n \n \n \n Sexual differences in oxidative stress in two species of Neotropical manakins (Pipridae).\n \n \n \n \n\n\n \n Gomes, A., d., L., S.; Vieira, J., L., F.; and da Silva, J., M., C.\n\n\n \n\n\n\n Journal of Ornithology, 160(4): 1151-1157. 5 2019.\n \n\n\n\n
\n\n\n\n \n \n $\"Sexual$ Paper\n \n \n \n $\"Sexual$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Sexual differences in oxidative stress in two species of Neotropical manakins (Pipridae)},\n type = {article},\n year = {2019},\n keywords = {Behavior,Birds,Neotropical forests,Physiology,Tropical forests},\n pages = {1151-1157},\n volume = {160},\n websites = {http://link.springer.com/10.1007/s10336-019-01673-8},\n month = {5},\n day = {22},\n id = {f93cb05b-7f3b-3260-b1ac-ec3869089ad2},\n created = {2019-05-23T17:36:10.004Z},\n file_attached = {true},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-05-27T19:41:43.414Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Because of differences in energetic investments in reproduction, natural and sexual selection are expected to impact males and females differentially, driving the evolution of sexual dimorphism. Thus, males and females are predicted to also differ in how they respond to environmental stressors and how they restore and maintain body homeostasis. Oxidative stress has been suggested to be one potential indicator of the impact of environmental stressors on wildlife. In this paper, we evaluate, for the first time, the oxidative stress in two sympatric lekking species of Neotropical manakins: the Red-headed Manakin (Ceratopipra rubrocapilla) and the White-crowned Manakin (Pseudopipra pipra). Specifically, we test the hypothesis that females of these two species have higher levels of oxidative stress than males because, among Neotropical manakins, only females provide parental care. We found no support for this hypothesis. In fact, males had higher levels of oxidative stress than females. All three hypotheses (predation stress, oxidation handicap, and aerobic activity) available to explain our results have limitations, so further field and laboratory studies on oxidative stress in manakins are required.},\n bibtype = {article},\n author = {Gomes, Andreza de Lourdes Souza and Vieira, José Luiz Fernandes and da Silva, José Maria Cardoso},\n doi = {10.1007/s10336-019-01673-8},\n journal = {Journal of Ornithology},\n number = {4}\n}

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\n \n\n \n \n \n \n \n \n Direct and indirect effects of the El Niño Southern Oscillation on development and survival of young of a tropical passerine.\n \n \n \n \n\n\n \n Jones, B., C.; and DuVal, E., H.\n\n\n \n\n\n\n Oecologia, 190(2): 485-496. 5 2019.\n \n\n\n\n
\n\n\n\n \n \n $\"Direct$ Paper\n \n \n \n $\"Direct$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Direct and indirect effects of the El Niño Southern Oscillation on development and survival of young of a tropical passerine},\n type = {article},\n year = {2019},\n keywords = {Chiroxiphia lanceolata,El Niño,Growth rate,La Niña,Lance-tailed manakin,Oceanic Niño Index climate,Piecewise structural equation model},\n pages = {485-496},\n volume = {190},\n websites = {http://link.springer.com/10.1007/s00442-019-04418-9},\n month = {5},\n day = {22},\n id = {0b1be9e2-8709-361b-95a9-0d92d0c0cd7f},\n created = {2019-05-28T13:36:12.126Z},\n file_attached = {true},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-05-27T19:41:43.422Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The El Niño Southern Oscillation (ENSO) is a global phenomenon that influences climate variation and, in turn, the ecological processes affecting the abundance and distribution of populations across taxa. For example, the ENSO can profoundly influence the development and survival of pelagic species, but the extent to which the ENSO affects offspring of terrestrial species is less well known. We used piecewise structural equation modeling to investigate the direct and indirect relationship between the ENSO and offspring development and survival in a terrestrial tropical passerine, the lance-tailed manakin (Chiroxiphia lanceolata). The Oceanic Niño Index (ONI), a measure of the ENSO, was negatively related to individual growth rate, maximum number of lesion developed by nestlings, and hatching day-of-year; which in turn mediated indirect effects on fledging success and recruitment. Further the ONI was a better predictor of nestling development compared to local temperature and rainfall. Our study establishes a link between the ENSO and the development and survival of young of a terrestrial species and underscores the need to better understand how offspring cope with global climate variation.},\n bibtype = {article},\n author = {Jones, Blake Carlton and DuVal, Emily H.},\n doi = {10.1007/s00442-019-04418-9},\n journal = {Oecologia},\n number = {2}\n}

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\n \n\n \n \n \n \n \n \n Sampling baseline androgens in free-living passerines: Methodological considerations and solutions.\n \n \n \n \n\n\n \n Vernasco, B., J.; Horton, B., M.; Ryder, T., B.; and Moore, I., T.\n\n\n \n\n\n\n General and Comparative Endocrinology, 273: 202-208. 3 2019.\n \n\n\n\n
\n\n\n\n \n \n $\"Sampling$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Sampling baseline androgens in free-living passerines: Methodological considerations and solutions},\n type = {article},\n year = {2019},\n keywords = {androgens,endocrinology,field techniques,manakins,stress,testosterone},\n pages = {202-208},\n volume = {273},\n websites = {https://linkinghub.elsevier.com/retrieve/pii/S0016648018301254},\n month = {3},\n id = {3f574226-24b8-390a-92d0-734fb345ee4f},\n created = {2019-07-08T01:06:24.298Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:25.303Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n citation_key = {Vernasco2019},\n private_publication = {false},\n bibtype = {article},\n author = {Vernasco, Ben J. and Horton, Brent M. and Ryder, T. Brandt and Moore, Ignacio T.},\n doi = {10.1016/j.ygcen.2018.07.017},\n journal = {General and Comparative Endocrinology}\n}

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\n \n\n \n \n \n \n \n Breeding biology of the Helmeted Manakin Antilophia galeata in an ecotone between the Atlantic Forest and the Cerrado.\n \n \n \n\n\n \n Marçal, B., D., F.; and Lopes, L., E.\n\n\n \n\n\n\n Brazilian Journal of Ornithology, 27(March): 1-9. 2019.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Breeding biology of the Helmeted Manakin Antilophia galeata in an ecotone between the Atlantic Forest and the Cerrado},\n type = {article},\n year = {2019},\n pages = {1-9},\n volume = {27},\n id = {d7dce684-d0b4-3772-afdd-1aecaf5dd33c},\n created = {2019-09-04T03:58:38.165Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-01T21:48:45.639Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Marçal, Bráulio De Freitas and Lopes, Leonardo Esteves},\n journal = {Brazilian Journal of Ornithology},\n number = {March}\n}

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\n \n\n \n \n \n \n \n Avian host composition, local speciation and dispersal drive the regional assembly of avian malaria parasites in South American birds.\n \n \n \n\n\n \n Fecchio, A.; Bell, J., A.; Pinheiro, R., B.; Cueto, V., R.; Gorosito, C., A.; Lutz, H., L.; Gaiotti, M., G.; Paiva, L., V.; França, L., F.; Toledo-Lima, G.; Tolentino, M.; Pinho, J., B.; Tkach, V., V.; Fontana, C., S.; Grande, J., M.; Santillán, M., A.; Caparroz, R.; Roos, A., L.; Bessa, R.; Nogueira, W.; Moura, T.; Nolasco, E., C.; Comiche, K., J.; Kirchgatter, K.; Guimarães, L., O.; Dispoto, J., H.; Marini, M.; Weckstein, J., D.; Batalha-Filho, H.; and Collins, M., D.\n\n\n \n\n\n\n Molecular Ecology, 28(10): 2681-2693. 2019.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Avian host composition, local speciation and dispersal drive the regional assembly of avian malaria parasites in South American birds},\n type = {article},\n year = {2019},\n keywords = {community assembly,disease ecology,latitudinal diversity gradient,macroecology,parasite biogeography,parasite dispersal},\n pages = {2681-2693},\n volume = {28},\n id = {c5e62402-6d30-318e-a645-5c5d8230385c},\n created = {2019-10-15T16:49:32.893Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T16:59:48.316Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Identifying the ecological factors that shape parasite distributions remains a central goal in disease ecology. These factors include dispersal capability, environmental filters and geographic distance. Using 520 haemosporidian parasite genetic lineages recovered from 7,534 birds sampled across tropical and temperate South America, we tested (a) the latitudinal diversity gradient hypothesis and (b) the distance–decay relationship (decreasing proportion of shared species between communities with increasing geographic distance) for this host–parasite system. We then inferred the biogeographic processes influencing the diversity and distributions of this cosmopolitan group of parasites across South America. We found support for a latitudinal gradient in diversity for avian haemosporidian parasites, potentially mediated through higher avian host diversity towards the equator. Parasite similarity was correlated with climate similarity, geographic distance and host composition. Local diversification in Amazonian lineages followed by dispersal was the most frequent biogeographic events reconstructed for haemosporidian parasites. Combining macroecological patterns and biogeographic processes, our study reveals that haemosporidian parasites are capable of circumventing geographic barriers and dispersing across biomes, although constrained by environmental filtering. The contemporary diversity and distributions of haemosporidian parasites are mainly driven by historical (speciation) and ecological (dispersal) processes, whereas the parasite community assembly is largely governed by host composition and to a lesser extent by environmental conditions.},\n bibtype = {article},\n author = {Fecchio, Alan and Bell, Jeffrey A. and Pinheiro, Rafael B.P. and Cueto, Victor R. and Gorosito, Cristian A. and Lutz, Holly L. and Gaiotti, Milene G. and Paiva, Luciana V. and França, Leonardo F. and Toledo-Lima, Guilherme and Tolentino, Mariana and Pinho, João B. and Tkach, Vasyl V. and Fontana, Carla S. and Grande, Juan Manuel and Santillán, Miguel A. and Caparroz, Renato and Roos, Andrei L. and Bessa, Rafael and Nogueira, Wagner and Moura, Thiago and Nolasco, Erica C. and Comiche, Kiba J.M. and Kirchgatter, Karin and Guimarães, Lilian O. and Dispoto, Janice H. and Marini, Miguel and Weckstein, Jason D. and Batalha-Filho, Henrique and Collins, Michael D.},\n doi = {10.1111/mec.15094},\n journal = {Molecular Ecology},\n number = {10}\n}

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\n \n\n \n \n \n \n \n Individual variation in feather corticosterone levels and its influence on haemosporidian infection in a Neotropical bird.\n \n \n \n\n\n \n Bosholn, M.; Anciães, M.; Gil, D.; Weckstein, J., D.; Dispoto, J., H.; and Fecchio, A.\n\n\n \n\n\n\n Ibis,0-2. 2019.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Individual variation in feather corticosterone levels and its influence on haemosporidian infection in a Neotropical bird},\n type = {article},\n year = {2019},\n keywords = {Amazon,Haemoproteus,Lepidothrix,Leucocytozoon,Plasmodium,autoecology,avian ecophysiology,glucocorticoid},\n pages = {0-2},\n id = {25059f55-582e-389d-ae68-b981e6e6fb8b},\n created = {2019-10-15T16:49:33.294Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T16:59:48.546Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Corticosterone (CORT) is the main glucocorticoid hormone of amphibians, reptiles, birds and some mammals. This hormone may have evolved as an adaptive metabolic mechanism, in part because increased concentrations of CORT are essential for individuals to manage energy resources and thus cope with negative perturbations such as predation and storms. The benefits of CORT are offset by costs, because elevated levels can suppress inflammatory responses of individuals, making them more susceptible to parasites and pathogens. In this study, we investigated the relationships between feather CORT levels, infection status and diversity of haemosporidian parasites in the Blue‐crowned Manakin Lepidothrix coronata, considering possible effects related to the sex and age of individuals. We predicted higher levels of feather CORT in infected individuals. We observed that feather CORT levels were similar among individuals of different sexes and ages. Although haemosporidian infection status did not vary among sexes, occurrence probability was higher among younger individuals, which may indicate that the less developed immune system of these individuals makes them more susceptible to avian malaria. Contrary to expectations, we found that feather CORT levels were not associated with the infection status and diversity of haemosporidian parasites. That haemosporidian occurrence probability does not increase with elevated feather CORT levels suggests that individuals are not immunosuppressed by elevated levels of this hormone, at least to the extent that feather CORT truly reflects individual differences in the level of this hormone.},\n bibtype = {article},\n author = {Bosholn, Mariane and Anciães, Marina and Gil, Diego and Weckstein, Jason D. and Dispoto, Janice H. and Fecchio, Alan},\n doi = {10.1111/ibi.12709},\n journal = {Ibis}\n}

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\n \n\n \n \n \n \n \n \n Breeding biology of the critically endangered Araripe Manakin (Antilophia bokermanni) in Brazil.\n \n \n \n \n\n\n \n Gaiotti, M., G.; Oliveira, J., H.; and Macedo, R., H.\n\n\n \n\n\n\n The Wilson Journal of Ornithology, 131(3): 571. 10 2019.\n \n\n\n\n
\n\n\n\n \n \n $\"Breeding$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Breeding biology of the critically endangered Araripe Manakin (Antilophia bokermanni) in Brazil},\n type = {article},\n year = {2019},\n keywords = {antilophia bokermanni,araripe manakin,natural history,nesting biology,pipridae,reproduction,threatened},\n pages = {571},\n volume = {131},\n websites = {https://bioone.org/journals/the-wilson-journal-of-ornithology/volume-131/issue-3/18-170/Breeding-biology-of-the-critically-endangered-Araripe-Manakin-Antilophia-bokermanni/10.1676/18-170.full},\n month = {10},\n day = {10},\n id = {43c81c6c-2ed6-39e9-9e93-0540c1e29b04},\n created = {2019-10-17T19:35:58.829Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-17T19:35:58.829Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Gaiotti, Milene G and Oliveira, João H. and Macedo, Regina H},\n doi = {10.1676/18-170},\n journal = {The Wilson Journal of Ornithology},\n number = {3}\n}

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\n \n\n \n \n \n \n \n Individual variation in feather corticosterone levels and its influence on haemosporidian infection in a Neotropical bird.\n \n \n \n\n\n \n Bosholn, M.; Anciães, M.; Gil, D.; Weckstein, J., D.; Dispoto, J., H.; and Fecchio, A.\n\n\n \n\n\n\n Ibis. 2019.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Individual variation in feather corticosterone levels and its influence on haemosporidian infection in a Neotropical bird},\n type = {article},\n year = {2019},\n keywords = {amazon,autoecology,avian ecophysiology,birds and some,cort,corticosterone,glucocorticoid,haemoproteus,is the main glucocorticoid,lepidothrix,leucocytozoon,plasmodium,reptiles,steroid of amphibians},\n id = {2db78365-a6f7-337f-92ec-56ae1740f26f},\n created = {2019-10-29T15:59:50.538Z},\n file_attached = {false},\n profile_id = {80fb6026-e592-3a19-a9b2-982bb9a44575},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-29T15:59:50.538Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Bosholn, Mariane and Anciães, Marina and Gil, Diego and Weckstein, Jason D and Dispoto, Janice H and Fecchio, Alan},\n doi = {10.1111/ibi.12709},\n journal = {Ibis}\n}

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\n \n\n \n \n \n \n \n \n Individual‐resource networks reveal distinct fruit preferences of selective individuals from a generalist population of the Helmeted Manakin.\n \n \n \n \n\n\n \n Pires, L., P.; and De Melo, C.\n\n\n \n\n\n\n Ibis. 10 2019.\n \n\n\n\n
\n\n\n\n \n \n $\"Individual‐resource$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Individual‐resource networks reveal distinct fruit preferences of selective individuals from a generalist population of the Helmeted Manakin},\n type = {article},\n year = {2019},\n websites = {https://onlinelibrary.wiley.com/doi/abs/10.1111/ibi.12794},\n month = {10},\n day = {26},\n id = {e9b08f14-081a-3aab-9c9a-1f25cc1ea3e9},\n created = {2019-11-04T16:00:42.188Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-11-04T16:00:42.188Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Pires, Luís Paulo and De Melo, Celine},\n doi = {10.1111/ibi.12794},\n journal = {Ibis}\n}

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\n \n\n \n \n \n \n \n \n Multiple paternity in a lek mating system: Females mate multiply when they choose inexperienced sires.\n \n \n \n \n\n\n \n Rivers, P., R.; and DuVal, E., H.\n\n\n \n\n\n\n Journal of Animal Ecology,1365-2656.13158. 11 2019.\n \n\n\n\n
\n\n\n\n \n \n $\"Multiple$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Multiple paternity in a lek mating system: Females mate multiply when they choose inexperienced sires},\n type = {article},\n year = {2019},\n pages = {1365-2656.13158},\n websites = {https://onlinelibrary.wiley.com/doi/abs/10.1111/1365-2656.13158},\n month = {11},\n day = {30},\n id = {f2c49eca-18ca-37b7-bce4-9e37fb722a38},\n created = {2019-12-08T17:59:54.254Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-12-08T17:59:54.254Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Rivers, Pearl R and DuVal, Emily H.},\n doi = {10.1111/1365-2656.13158},\n journal = {Journal of Animal Ecology}\n}

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\n \n\n \n \n \n \n \n Uniform Sperm Morphology in the Lek-Breeding Wire-Tailed Manakin (Pipra filicauda).\n \n \n \n\n\n \n Cramer, E., R., A.; Rowlison, T.; Comizzoli, P.; and Ryder, T., B.\n\n\n \n\n\n\n Ornitologia Neotropical, 30(February): 135-139. 2019.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Uniform Sperm Morphology in the Lek-Breeding Wire-Tailed Manakin (Pipra filicauda)},\n type = {article},\n year = {2019},\n keywords = {lek - breeding,manakins,post - copulatory sexual,selection,sperm competition,sperm morphology},\n pages = {135-139},\n volume = {30},\n id = {42f985e9-e275-3029-a6b1-e01683713bf4},\n created = {2020-05-15T21:46:38.052Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-05-15T21:46:38.052Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Cramer, Emily R A and Rowlison, Tricia and Comizzoli, Pierre and Ryder, T Brandt},\n journal = {Ornitologia Neotropical},\n number = {February}\n}

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\n \n 2018\n \n \n (10)\n \n \n

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\n \n\n \n \n \n \n \n \n Hybrid speciation leads to novel male secondary sexual ornamentation of an Amazonian bird.\n \n \n \n \n\n\n \n Barrera-Guzmán, A., O.; Aleixo, A.; Shawkey, M., D.; and Weir, J., T.\n\n\n \n\n\n\n Proceedings of the National Academy of Sciences, 115(2): E218-E225. 1 2018.\n \n\n\n\n
\n\n\n\n \n \n $\"Hybrid$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Hybrid speciation leads to novel male secondary sexual ornamentation of an Amazonian bird},\n type = {article},\n year = {2018},\n pages = {E218-E225},\n volume = {115},\n websites = {http://www.pnas.org/lookup/doi/10.1073/pnas.1717319115},\n month = {1},\n day = {9},\n id = {ca260a72-5cab-3afc-9af1-2f6244d08144},\n created = {2019-01-22T18:18:43.036Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-01-22T18:18:43.036Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Hybrid speciation is rare in vertebrates, and reproductive isolation arising from hybridization is infrequently demonstrated. Here, we present evidence supporting a hybrid-speciation event involving the genetic admixture of the snow-capped (Lepidothrix nattereri) and opal-crowned (Lepidothrix iris) manakins of the Amazon basin, leading to the formation of the hybrid species, the golden-crowned manakin (Lepidothrix vilasboasi). We used a genome-wide SNP dataset together with analysis of admixture, population structure, and coalescent modeling to demonstrate that the golden-crowned manakin is genetically an admixture of these species and does not represent a hybrid zone but instead formed through ancient genetic admixture. We used spectrophotometry to quantify the coloration of the species-specific male crown patches. Crown patches are highly reflective white (snow-capped manakin) or iridescent whitish-blue to pink (opal-crowned manakin) in parental species but are a much less reflective yellow in the hybrid species. The brilliant coloration of the parental species results from nanostructural organization of the keratin matrix feather barbs of the crown. However, using electron microscopy, we demonstrate that the structural organization of this matrix is different in the two parental species and that the hybrid species is intermediate. The intermediate nature of the crown barbs, resulting from past admixture appears to have rendered a duller structural coloration. To compensate for reduced brightness, selection apparently resulted in extensive thickening of the carotenoid-laden barb cortex, producing the yellow crown coloration. The evolution of this unique crown-color signal likely culminated in premating isolation of the hybrid species from both parental species.},\n bibtype = {article},\n author = {Barrera-Guzmán, Alfredo O. and Aleixo, Alexandre and Shawkey, Matthew D. and Weir, Jason T.},\n doi = {10.1073/pnas.1717319115},\n journal = {Proceedings of the National Academy of Sciences},\n number = {2}\n}

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\n \n\n \n \n \n \n \n \n Physiological constraint on acrobatic courtship behavior underlies rapid sympatric speciation in bearded manakins.\n \n \n \n \n\n\n \n Miles, M., C.; Goller, F.; and Fuxjager, M., J.\n\n\n \n\n\n\n eLife, 7: 1-19. 2018.\n \n\n\n\n
\n\n\n\n \n \n $\"Physiological$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Physiological constraint on acrobatic courtship behavior underlies rapid sympatric speciation in bearded manakins},\n type = {article},\n year = {2018},\n pages = {1-19},\n volume = {7},\n websites = {https://elifesciences.org/articles/40630},\n id = {28117f0a-8a3b-389b-8060-f75d3d59f325},\n created = {2019-01-22T18:18:43.194Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-01-22T18:18:43.194Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {<p>Physiology’s role in speciation is poorly understood. Motor systems, for example, are widely thought to shape this process because they can potentiate or constrain the evolution of key traits that help mediate speciation. Previously, we found that Neotropical manakin birds have evolved one of the fastest limb muscles on record to support innovations in acrobatic courtship display (Fuxjager et al., 2016a). Here, we show how this modification played an instrumental role in the sympatric speciation of a manakin genus, illustrating that muscle specializations fostered divergence in courtship display speed, which may generate assortative mating. However, innovations in contraction-relaxation cycling kinetics that underlie rapid muscle performance are also punctuated by a severe speed-endurance trade-off, blocking further exaggeration of display speed. Sexual selection therefore potentiated phenotypic displacement in a trait critical to mate choice, all during an extraordinarily fast species radiation—and in doing so, pushed muscle performance to a new boundary altogether.</p>},\n bibtype = {article},\n author = {Miles, Meredith C and Goller, Franz and Fuxjager, Matthew J},\n doi = {10.7554/eLife.40630},\n journal = {eLife}\n}

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\n \n\n \n \n \n \n \n \n Dynamic network partnerships and social contagion drive cooperation.\n \n \n \n \n\n\n \n Dakin, R.; and Ryder, T., B.\n\n\n \n\n\n\n Proceedings of the Royal Society B: Biological Sciences, 285(1893): 20181973. 12 2018.\n \n\n\n\n
\n\n\n\n \n \n $\"Dynamic$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Dynamic network partnerships and social contagion drive cooperation},\n type = {article},\n year = {2018},\n keywords = {behavioral,cooperation,dynamic social networks,indirect genetic effects,max 6,plasticity,social contagion,wire-tailed manakin},\n pages = {20181973},\n volume = {285},\n websites = {http://www.royalsocietypublishing.org/doi/10.1098/rspb.2018.1973},\n month = {12},\n day = {19},\n id = {249fcd86-468c-3297-8ead-818e92b6c803},\n created = {2019-02-07T16:48:36.505Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-02-07T16:48:36.505Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Dakin, Roslyn and Ryder, Thomas Brandt},\n doi = {10.1098/rspb.2018.1973},\n journal = {Proceedings of the Royal Society B: Biological Sciences},\n number = {1893}\n}

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\n \n\n \n \n \n \n \n \n Display activity and foraging costs of a frugivorous lekking bird.\n \n \n \n \n\n\n \n Cestári, C.; Pizo, M., A.; and Loiselle, B., A.\n\n\n \n\n\n\n Wilson Journal of Ornithology, 130(4): 987-992. 2018.\n \n\n\n\n
\n\n\n\n \n \n $\"Display$ Paper\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Display activity and foraging costs of a frugivorous lekking bird},\n type = {article},\n year = {2018},\n keywords = {Manacus,frugivory,leks,male display,sexual selection},\n pages = {987-992},\n volume = {130},\n id = {8e81f2e0-e946-3965-aed5-cb041821ba9b},\n created = {2019-02-18T17:39:48.548Z},\n file_attached = {true},\n profile_id = {d05effc8-927f-32e8-a098-4b34a7465a6a},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T01:19:34.959Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Sexual success of males in lek breeding systems is often determined by display activities that require high energetic costs and may represent honest signals of male quality to females. In this context, manakins (Aves, Pipridae) evolved behavioral, morphological, and physiological adaptations that enable complex display maneuvers, and a high rate of fruit ingestion is needed to cope with the energetic costs of lekking activities. We examined the relationship between different displays (rolled-snaps, flights-down, and snap-jumps) and fruit consumption (a proxy for energy intake) by White-bearded Manakin males (Manacus manacus). We conducted a fruit supplementation experiment and recorded male displays in 23 arenas on 5 leks in southeastern Brazil. The flight-down was the display most related to fruit consumption (and energy refueling) by males of the White-bearded Manakin. This display seems to be decisive to the mating success of Manacus males; once inside a lek area, females are driven to display arenas by flights-down of males as an obligatory stage before copulation. This study opens a promising avenue for further field experiments designed to test how local food resources differentially impact display behavior among males in leks.},\n bibtype = {article},\n author = {Cestári, César and Pizo, Marco Aurélio and Loiselle, Bette A},\n doi = {10.1676/1559-4491.130.4.869},\n journal = {Wilson Journal of Ornithology},\n number = {4}\n}

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\n \n\n \n \n \n \n \n \n The spatial dynamics of female choice in an exploded lek generate benefits of aggregation for experienced males.\n \n \n \n \n\n\n \n DuVal, E., H.; Vanderbilt, C., C.; and M'Gonigle, L., K.\n\n\n \n\n\n\n Animal Behaviour, 143: 215-225. 9 2018.\n \n\n\n\n
\n\n\n\n \n \n $\"The$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {The spatial dynamics of female choice in an exploded lek generate benefits of aggregation for experienced males},\n type = {article},\n year = {2018},\n keywords = {Chiroxiphia lanceolata,cooperation,cooperative display,exploded lek,female preference,hotshot,hotspot,manakin,mate choice,sampling tactic},\n pages = {215-225},\n volume = {143},\n websites = {https://doi.org/10.1016/j.anbehav.2018.01.009,https://linkinghub.elsevier.com/retrieve/pii/S000334721830023X},\n month = {9},\n publisher = {Elsevier Ltd},\n id = {d91b0783-8a95-309d-ad44-464c62f89f7d},\n created = {2019-06-15T01:30:28.898Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-06-15T01:30:28.898Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The spatial distribution of prospective mates can dramatically affect the process and outcome of mate choice. In a variety of species, spacing between males influences the likelihood that females visit particular individuals or respond to competing signals. Discrimination by females is expected to be highest among neighbouring males, yet males of some species aggregate in ways that apparently facilitate such comparisons. To better understand the selective pressures affecting male aggregation, we investigated how spatial organization of male territories related to female mate sampling tactics and male mating success in the lance-tailed manakin, Chiroxiphia lanceolata. This species displays in a dispersed lek of alpha males, each of which usually has a subordinate beta partner that participates in displays but does not mate with females attracted by their cooperative courtship. We video-recorded courtship activity at display perches of 12 alpha–beta pairs for 42 days in 2013, and documented 478 visits by 82 banded females. We further quantified the relationship of aggregation with genetic mating success for 49 alphas displaying at georeferenced locations in 5 years. Males with close neighbouring alphas were visited by more females, but geographic centrality was unrelated to female visit frequency. Females moved shorter distances between consecutive courtship visits than expected at random, but only 20.5% of 73 females visiting males with video-monitored nearest neighbours visited both neighbouring alpha males. Effects of aggregation on annual genetic reproductive success were only evident after accounting for the stronger effects of alpha age and experience, and only experienced alphas benefited from having close neighbours. Selection for aggregation more likely influences social behaviour of older alphas than settlement decisions by younger males. Benefits of aggregation for experienced alphas mitigate declines in old age, and may generate selective pressure favouring the long-term social alliances that are a key characteristic of this mating system.},\n bibtype = {article},\n author = {DuVal, Emily H. and Vanderbilt, Carla C. and M'Gonigle, Leithen K.},\n doi = {10.1016/j.anbehav.2018.01.009},\n journal = {Animal Behaviour}\n}

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\n\n\n

\n The spatial distribution of prospective mates can dramatically affect the process and outcome of mate choice. In a variety of species, spacing between males influences the likelihood that females visit particular individuals or respond to competing signals. Discrimination by females is expected to be highest among neighbouring males, yet males of some species aggregate in ways that apparently facilitate such comparisons. To better understand the selective pressures affecting male aggregation, we investigated how spatial organization of male territories related to female mate sampling tactics and male mating success in the lance-tailed manakin, Chiroxiphia lanceolata. This species displays in a dispersed lek of alpha males, each of which usually has a subordinate beta partner that participates in displays but does not mate with females attracted by their cooperative courtship. We video-recorded courtship activity at display perches of 12 alpha–beta pairs for 42 days in 2013, and documented 478 visits by 82 banded females. We further quantified the relationship of aggregation with genetic mating success for 49 alphas displaying at georeferenced locations in 5 years. Males with close neighbouring alphas were visited by more females, but geographic centrality was unrelated to female visit frequency. Females moved shorter distances between consecutive courtship visits than expected at random, but only 20.5% of 73 females visiting males with video-monitored nearest neighbours visited both neighbouring alpha males. Effects of aggregation on annual genetic reproductive success were only evident after accounting for the stronger effects of alpha age and experience, and only experienced alphas benefited from having close neighbours. Selection for aggregation more likely influences social behaviour of older alphas than settlement decisions by younger males. Benefits of aggregation for experienced alphas mitigate declines in old age, and may generate selective pressure favouring the long-term social alliances that are a key characteristic of this mating system.\n

\n\n\n

\n \n\n \n \n \n \n \n \n Relatedness within and between leks of golden-collared manakin differ between sexes and age classes.\n \n \n \n \n\n\n \n Fusani, L.; Barske, J.; Natali, C.; Chelazzi, G.; and Ciofi, C.\n\n\n \n\n\n\n Behavioral Ecology, 29(6): 1390-1401. 8 2018.\n \n\n\n\n
\n\n\n\n \n \n $\"Relatedness$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Relatedness within and between leks of golden-collared manakin differ between sexes and age classes},\n type = {article},\n year = {2018},\n keywords = {Golden-collared manakin,Kin selection,Manacus vitellinus,Microsatellites,Relatedness},\n pages = {1390-1401},\n volume = {29},\n websites = {https://academic.oup.com/beheco/advance-article/doi/10.1093/beheco/ary116/5076081},\n month = {8},\n day = {18},\n id = {0fcc7b26-a290-3adf-954c-899d3b8d3a6e},\n created = {2019-07-03T12:15:32.726Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-07-03T12:15:32.726Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {A promising approach to increasing the energy efficiency of buildings is the implementation of a phase change material (PCM) in the building envelope. Numerous studies over the last two decades have reported the energy saving potential of PCMs in building envelopes, but their wide application has been inhibited, in part, by their high cost. This article describes a novel PCM made of naturally occurring fatty acids/glycerides trapped into high density polyethylene (HDPE) pellets and its performance in a building envelope application. The PCM-HDPE pellets were mixed with cellulose insulation and then added to an exterior wall of a test building in a hot and humid climate, and tested over a period of several months. To demonstrate the efficacy of the PCM-enhanced cellulose insulation in reducing the building envelope heat gains and losses, a side-by-side comparison was performed with another wall section filled with cellulose-only insulation. Further, numerical modeling of the test wall was performed to determine the actual impact of the PCM-HDPE pellets on wall-generated heating and cooling loads and the associated electricity consumption. The model was first validated using experimental data and then used for annual simulations using typical meteorological year (TMY3) weather data. This article presents the experimental data and numerical analyses showing the energy-saving potential of the new PCM. (C) 2014 Elsevier Ltd. All rights reserved.},\n bibtype = {article},\n author = {Fusani, Leonida and Barske, Julia and Natali, Chiara and Chelazzi, Guido and Ciofi, Claudio},\n doi = {10.1093/beheco/ary116},\n journal = {Behavioral Ecology},\n number = {6}\n}

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\n\n\n

\n \n\n \n \n \n \n \n \n The spatial dynamics of female choice in an exploded lek generate benefits of aggregation for experienced males.\n \n \n \n \n\n\n \n DuVal, E., H.; Vanderbilt, C., C.; and M'Gonigle, L., K.\n\n\n \n\n\n\n Animal Behaviour, 143: 215-225. 2018.\n \n\n\n\n
\n\n\n\n \n \n $\"The$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {The spatial dynamics of female choice in an exploded lek generate benefits of aggregation for experienced males},\n type = {article},\n year = {2018},\n keywords = {Chiroxiphia lanceolata,cooperation,cooperative display,exploded lek,female preference,hotshot,hotspot,manakin,mate choice,sampling tactic},\n pages = {215-225},\n volume = {143},\n websites = {https://doi.org/10.1016/j.anbehav.2018.01.009},\n publisher = {Elsevier Ltd},\n id = {f117b24b-65ff-38fd-9639-dd77a36cfd8e},\n created = {2019-10-03T13:47:35.393Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-03T13:47:35.393Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The spatial distribution of prospective mates can dramatically affect the process and outcome of mate choice. In a variety of species, spacing between males influences the likelihood that females visit particular individuals or respond to competing signals. Discrimination by females is expected to be highest among neighbouring males, yet males of some species aggregate in ways that apparently facilitate such comparisons. To better understand the selective pressures affecting male aggregation, we investigated how spatial organization of male territories related to female mate sampling tactics and male mating success in the lance-tailed manakin, Chiroxiphia lanceolata. This species displays in a dispersed lek of alpha males, each of which usually has a subordinate beta partner that participates in displays but does not mate with females attracted by their cooperative courtship. We video-recorded courtship activity at display perches of 12 alpha–beta pairs for 42 days in 2013, and documented 478 visits by 82 banded females. We further quantified the relationship of aggregation with genetic mating success for 49 alphas displaying at georeferenced locations in 5 years. Males with close neighbouring alphas were visited by more females, but geographic centrality was unrelated to female visit frequency. Females moved shorter distances between consecutive courtship visits than expected at random, but only 20.5% of 73 females visiting males with video-monitored nearest neighbours visited both neighbouring alpha males. Effects of aggregation on annual genetic reproductive success were only evident after accounting for the stronger effects of alpha age and experience, and only experienced alphas benefited from having close neighbours. Selection for aggregation more likely influences social behaviour of older alphas than settlement decisions by younger males. Benefits of aggregation for experienced alphas mitigate declines in old age, and may generate selective pressure favouring the long-term social alliances that are a key characteristic of this mating system.},\n bibtype = {article},\n author = {DuVal, Emily H. and Vanderbilt, Carla C. and M'Gonigle, Leithen K.},\n doi = {10.1016/j.anbehav.2018.01.009},\n journal = {Animal Behaviour}\n}

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\n\n\n

\n The spatial distribution of prospective mates can dramatically affect the process and outcome of mate choice. In a variety of species, spacing between males influences the likelihood that females visit particular individuals or respond to competing signals. Discrimination by females is expected to be highest among neighbouring males, yet males of some species aggregate in ways that apparently facilitate such comparisons. To better understand the selective pressures affecting male aggregation, we investigated how spatial organization of male territories related to female mate sampling tactics and male mating success in the lance-tailed manakin, Chiroxiphia lanceolata. This species displays in a dispersed lek of alpha males, each of which usually has a subordinate beta partner that participates in displays but does not mate with females attracted by their cooperative courtship. We video-recorded courtship activity at display perches of 12 alpha–beta pairs for 42 days in 2013, and documented 478 visits by 82 banded females. We further quantified the relationship of aggregation with genetic mating success for 49 alphas displaying at georeferenced locations in 5 years. Males with close neighbouring alphas were visited by more females, but geographic centrality was unrelated to female visit frequency. Females moved shorter distances between consecutive courtship visits than expected at random, but only 20.5% of 73 females visiting males with video-monitored nearest neighbours visited both neighbouring alpha males. Effects of aggregation on annual genetic reproductive success were only evident after accounting for the stronger effects of alpha age and experience, and only experienced alphas benefited from having close neighbours. Selection for aggregation more likely influences social behaviour of older alphas than settlement decisions by younger males. Benefits of aggregation for experienced alphas mitigate declines in old age, and may generate selective pressure favouring the long-term social alliances that are a key characteristic of this mating system.\n

\n\n\n

\n \n\n \n \n \n \n \n \n Vocal variation in Chiroxiphia boliviana (Aves; Pipridae) along an Andean elevational gradient.\n \n \n \n \n\n\n \n Villegas, M.; Blake, J., G.; Sieving, K., E.; and Loiselle, B., A.\n\n\n \n\n\n\n Evolutionary Ecology, 32(2-3): 171-190. 6 2018.\n \n\n\n\n
\n\n\n\n \n \n $\"Vocal$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Vocal variation in Chiroxiphia boliviana (Aves; Pipridae) along an Andean elevational gradient},\n type = {article},\n year = {2018},\n keywords = {Andes,Bolivia,Lek,Manakins,Sensory-drive,Suboscines,Vocalizations},\n pages = {171-190},\n volume = {32},\n websites = {https://doi.org/10.1007/s10682-018-9934-7,http://link.springer.com/10.1007/s10682-018-9934-7},\n month = {6},\n publisher = {Springer International Publishing},\n day = {29},\n id = {ad7b6d31-9c92-350f-9e32-822adc96ddcd},\n created = {2019-10-04T01:03:04.298Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-04T01:03:04.298Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {© 2018, Springer International Publishing AG, part of Springer Nature. Bird vocalizations are likely shaped both by natural and sexual selection. Here we test the sensory-drive hypothesis, which states that communication signals diverge as a direct adaptation to the signaling environment and can evolve to minimize degradation and maximize transmission. We examined the effects of elevation and other habitat variables on variation in vocalizations of Chiroxiphia boliviana (Aves, Pipridae) along an elevational gradient (1300–2500 m) in cloud and humid montane forests in the Andes of Bolivia. We also conducted sound transmission experiments to determine if reverberation and attenuation changed along the gradient. Reverberation increased at higher elevations, and attenuation decreased at higher elevations and increased for higher frequencies. We recorded vocalizations from ~ 50 individuals throughout the elevational gradient and examined variation in duration and bandwidth of short calls (used as contact calls between males), 2 display calls (advertisement for females) and 2 types of male–male duets (including interval times between males). Duration of short calls, display 1 and duet 1 increased with elevation. Bandwidth of short calls increased at mid-elevation categories and decreased at high elevations, whereas bandwidth of display 1 and duet 1 decreased with elevation. We also directly related the transmission properties to vocalizations and found that bandwidth of short calls decreased with reverberation and attenuation, bandwidth of display 2 decreased with reverberation, and duration of duet 1 both increased and decreased with attenuation (at 3 and 4 kHz, respectively). This study suggests that vocalizations by C. boliviana may be adapted to the habitat transmission properties along the elevational gradient; and perhaps that increasing song length and concentrating energy within a narrow bandwidth may lead to an increase in amplitude and improvement in transmission. Overall, our results support the sensory-drive hypothesis and suggest that this form of selection is likely common along tropical elevational gradients.},\n bibtype = {article},\n author = {Villegas, Mariana and Blake, John G. and Sieving, Kathryn E. and Loiselle, Bette A.},\n doi = {10.1007/s10682-018-9934-7},\n journal = {Evolutionary Ecology},\n number = {2-3}\n}

\n

\n\n\n

\n © 2018, Springer International Publishing AG, part of Springer Nature. Bird vocalizations are likely shaped both by natural and sexual selection. Here we test the sensory-drive hypothesis, which states that communication signals diverge as a direct adaptation to the signaling environment and can evolve to minimize degradation and maximize transmission. We examined the effects of elevation and other habitat variables on variation in vocalizations of Chiroxiphia boliviana (Aves, Pipridae) along an elevational gradient (1300–2500 m) in cloud and humid montane forests in the Andes of Bolivia. We also conducted sound transmission experiments to determine if reverberation and attenuation changed along the gradient. Reverberation increased at higher elevations, and attenuation decreased at higher elevations and increased for higher frequencies. We recorded vocalizations from ~ 50 individuals throughout the elevational gradient and examined variation in duration and bandwidth of short calls (used as contact calls between males), 2 display calls (advertisement for females) and 2 types of male–male duets (including interval times between males). Duration of short calls, display 1 and duet 1 increased with elevation. Bandwidth of short calls increased at mid-elevation categories and decreased at high elevations, whereas bandwidth of display 1 and duet 1 decreased with elevation. We also directly related the transmission properties to vocalizations and found that bandwidth of short calls decreased with reverberation and attenuation, bandwidth of display 2 decreased with reverberation, and duration of duet 1 both increased and decreased with attenuation (at 3 and 4 kHz, respectively). This study suggests that vocalizations by C. boliviana may be adapted to the habitat transmission properties along the elevational gradient; and perhaps that increasing song length and concentrating energy within a narrow bandwidth may lead to an increase in amplitude and improvement in transmission. Overall, our results support the sensory-drive hypothesis and suggest that this form of selection is likely common along tropical elevational gradients.\n

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\n \n\n \n \n \n \n \n Spatial and environmental correlates of intraspecific morphological variation in three species of passerine birds from the Purus–Madeira interfluvium, Central Amazonia.\n \n \n \n\n\n \n de Abreu, F., H., T.; Schietti, J.; and Anciães, M.\n\n\n \n\n\n\n Evolutionary Ecology, 32(2-3): 191-214. 2018.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Spatial and environmental correlates of intraspecific morphological variation in three species of passerine birds from the Purus–Madeira interfluvium, Central Amazonia},\n type = {article},\n year = {2018},\n keywords = {Arbitrary preferences,Coloration,Neotropics,Phenotypic variation,Sensory drive,Suboscines},\n pages = {191-214},\n volume = {32},\n id = {5bcfec8d-4ed0-368b-bcdc-a3cf6800b9ea},\n created = {2019-10-15T16:49:32.895Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T17:59:11.770Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {© 2018 Springer International Publishing AG, part of Springer Nature Biogeographic studies in Amazonia typically describe biodiversity across interfluvia, rarely within them, where geographic variability in morphological traits might be observed. We tested for intraspecific phenotypic variation in three bird species within the Purus–Madeira interfluvium (Central Amazon) and whether phenotypes were correlated with environmental heterogeneity or geographic distance among sites. We compared coloration indexes derived from reflectance spectra and morphometrics of up to five adult individuals of each sex among 11 sites within the interfluvium and contrasted them with proxies for geographic distance and environmental variation (tree basal area and bird community). Environmental heterogeneity was minimally spatially autocorrelated, and there were no obvious geographical barriers to dispersal in the study region. The null hypothesis was that we would see either no phenotypic variation or random variation that was not explained by the tested variables. Half of the cases analyzed showed intraspecific morphological variation. Coloration varied more frequently than morphometrics, and color was better explained by environmental heterogeneity, particularly in males, whereas brightness also varied with geographic distance. Geographic distance explained the only case of variation in morphometrics. Our results indicate that coloration, particularly plumage brightness, is more labile than morphometric traits and that plumage color might be under stronger effects of local adaptation than brightness, which also seems to be under effects of neutral drift and gene flow among populations. Higher frequencies of association between male coloration and the environment suggest a role of non-arbitrary mechanisms of sexual selection on the expression of male phenotypes, whereas arbitrary intersexual selection might explain the randomly distributed variation that is not explained by environmental heterogeneity or geographic distance. We revealed intraspecific phenotypic variation in a spatial extent usually not considered in biogeographic studies in the Amazon and demonstrate that both local adaptation and neutral drift are important to explain intraspecific trait diversification at this geographical scale.},\n bibtype = {article},\n author = {de Abreu, Fernando Henrique Teófilo and Schietti, Juliana and Anciães, Marina},\n doi = {10.1007/s10682-018-9929-4},\n journal = {Evolutionary Ecology},\n number = {2-3}\n}

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\n © 2018 Springer International Publishing AG, part of Springer Nature Biogeographic studies in Amazonia typically describe biodiversity across interfluvia, rarely within them, where geographic variability in morphological traits might be observed. We tested for intraspecific phenotypic variation in three bird species within the Purus–Madeira interfluvium (Central Amazon) and whether phenotypes were correlated with environmental heterogeneity or geographic distance among sites. We compared coloration indexes derived from reflectance spectra and morphometrics of up to five adult individuals of each sex among 11 sites within the interfluvium and contrasted them with proxies for geographic distance and environmental variation (tree basal area and bird community). Environmental heterogeneity was minimally spatially autocorrelated, and there were no obvious geographical barriers to dispersal in the study region. The null hypothesis was that we would see either no phenotypic variation or random variation that was not explained by the tested variables. Half of the cases analyzed showed intraspecific morphological variation. Coloration varied more frequently than morphometrics, and color was better explained by environmental heterogeneity, particularly in males, whereas brightness also varied with geographic distance. Geographic distance explained the only case of variation in morphometrics. Our results indicate that coloration, particularly plumage brightness, is more labile than morphometric traits and that plumage color might be under stronger effects of local adaptation than brightness, which also seems to be under effects of neutral drift and gene flow among populations. Higher frequencies of association between male coloration and the environment suggest a role of non-arbitrary mechanisms of sexual selection on the expression of male phenotypes, whereas arbitrary intersexual selection might explain the randomly distributed variation that is not explained by environmental heterogeneity or geographic distance. We revealed intraspecific phenotypic variation in a spatial extent usually not considered in biogeographic studies in the Amazon and demonstrate that both local adaptation and neutral drift are important to explain intraspecific trait diversification at this geographical scale.\n

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\n \n\n \n \n \n \n \n First Record of Leucocytozoon (Haemosporida: Leucocytozoidae) in Amazonia: Evidence for Rarity in Neotropical Lowlands or Lack of Sampling for This Parasite Genus? .\n \n \n \n\n\n \n Fecchio, A.; Silveira, P.; Weckstein, J., D.; Dispoto, J., H.; Anciães, M.; Bosholn, M.; Tkach, V., V.; and Bell, J., A.\n\n\n \n\n\n\n Journal of Parasitology, 104(2): 168-172. 2018.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = { First Record of Leucocytozoon (Haemosporida: Leucocytozoidae) in Amazonia: Evidence for Rarity in Neotropical Lowlands or Lack of Sampling for This Parasite Genus? },\n type = {article},\n year = {2018},\n pages = {168-172},\n volume = {104},\n id = {8657ac0f-a494-3df4-a2d3-7c477df73c80},\n created = {2019-10-17T16:42:06.114Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-17T16:42:06.114Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {© American Society of Parasitologists 2018. Birds harbor an astonishing diversity of haemosporidian parasites belonging to the genera Haemoproteus, Leucocytozoon, and Plasmodium. Currently there are more than 250 morphologically described avian haemosporidian species and 2,828 unique lineages found in virtually all avian clades and zoogeographic regions, except for Antarctica. Our report is based on PCR and microscopic screening of 1,302 individual avian samples from Brazil to detect the underrepresented genus Leucocytozoon. This survey primarily focuses on passerine birds collected from Amazonia, the Atlantic Rain Forest, and Pantanal. We also summarize studies conducted in Brazil that report haemosporidian prevalence using both microscopy and molecular tools and present for the first time a record of Leucocytozoon infecting an avian host population in Amazonia. Based on our findings, we suggest that high average temperatures may be constraining both the distribution and diversity of Leucocytozoon in lowland tropical South America.},\n bibtype = {article},\n author = {Fecchio, A. and Silveira, P. and Weckstein, J. D. and Dispoto, J. H. and Anciães, M. and Bosholn, M. and Tkach, V. V. and Bell, J. A.},\n doi = {10.1645/17-182},\n journal = {Journal of Parasitology},\n number = {2}\n}

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\n \n 2017\n \n \n (7)\n \n \n

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\n \n\n \n \n \n \n \n \n Clearing up the court: sex and the endocrine basis of display-court manipulation.\n \n \n \n \n\n\n \n Chiver, I.; and Schlinger, B., A.\n\n\n \n\n\n\n Animal Behaviour, 131: 115-121. 2017.\n \n\n\n\n
\n\n\n\n \n \n $\"Clearing$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Clearing up the court: sex and the endocrine basis of display-court manipulation},\n type = {article},\n year = {2017},\n pages = {115-121},\n volume = {131},\n websites = {http://linkinghub.elsevier.com/retrieve/pii/S0003347217302269},\n publisher = {Elsevier Ltd},\n id = {ac041bd1-1e2d-353a-b488-072fe1fb134d},\n created = {2018-04-22T22:19:25.333Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:25.333Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Chiver, Ioana and Schlinger, Barney A.},\n doi = {10.1016/j.anbehav.2017.07.014},\n journal = {Animal Behaviour}\n}

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\n \n\n \n \n \n \n \n Males in seemingly female-like plumage do not mimic females: UV reflectance reveals temporal cryptic dimorphism in a manakin species exhibiting delayed plumage maturation.\n \n \n \n\n\n \n Morales-Betancourt, J., A.; and Castaño-Villa, G., J.\n\n\n \n\n\n\n Journal of Avian Biology, (7491): 0-2. 2017.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Males in seemingly female-like plumage do not mimic females: UV reflectance reveals temporal cryptic dimorphism in a manakin species exhibiting delayed plumage maturation},\n type = {article},\n year = {2017},\n pages = {0-2},\n id = {71fa1f33-b2b5-305e-88c9-c90036e94ce0},\n created = {2018-04-22T22:19:25.895Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:25.895Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Community assembly rules have been extensively studied, but its association with regional environmental variation, while land use history remains largely unexplored. Land use history might be especially important in Mediterranean forests, considering their historical deforestation and recent afforestation. Using forest inventories and historical (1956) and recent (2000) land cover maps, we explored the following hypotheses: 1) woody species assembly is driven by environmental factors, but also by historical landscape attributes; 2) recent forests exhibit lower woody species richness than pre-existing due to the existence of colonization credits; 3) these credits are modulated by species’ life-forms and dispersal mechanisms. We examined the association of forest historical type (pre-existing versus recent) with total species richness and that of diverse life-forms and dispersal groups, also considering the effects of current environment and past landscape factors. When accounting for these effects, no significant differences in woody species richness were found between forest historical types except for vertebrate-dispersed species. Species richness of this group was affected by the interaction of forest historical type with distance to coast and rainfall: vertebrate-dispersed species richness increased with rainfall and distance to the coast in recent forests, while it was higher in dryer sites in pre-existing forests. In addition, forest historical types showed differences in woody species composition associated to diverse environmental and past landscape factors. In view of these results we can conclude that: 1) community assembly in terms of species richness is fast enough to exhaust most colonization credit in recent Mediterranean forests except for vertebrate-dispersed species; 2) for these species, colonization credit is affected by the interplay of forest history and a set of proxies of niche and landscape constraints of species dispersal and establishment; 3) woody species assemblage is mostly shaped by the species’ ecological niches in these forests.},\n bibtype = {article},\n author = {Morales-Betancourt, Juan A. and Castaño-Villa, Gabriel J.},\n doi = {10.1111/oik.02629},\n journal = {Journal of Avian Biology},\n number = {7491}\n}

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\n Community assembly rules have been extensively studied, but its association with regional environmental variation, while land use history remains largely unexplored. Land use history might be especially important in Mediterranean forests, considering their historical deforestation and recent afforestation. Using forest inventories and historical (1956) and recent (2000) land cover maps, we explored the following hypotheses: 1) woody species assembly is driven by environmental factors, but also by historical landscape attributes; 2) recent forests exhibit lower woody species richness than pre-existing due to the existence of colonization credits; 3) these credits are modulated by species’ life-forms and dispersal mechanisms. We examined the association of forest historical type (pre-existing versus recent) with total species richness and that of diverse life-forms and dispersal groups, also considering the effects of current environment and past landscape factors. When accounting for these effects, no significant differences in woody species richness were found between forest historical types except for vertebrate-dispersed species. Species richness of this group was affected by the interaction of forest historical type with distance to coast and rainfall: vertebrate-dispersed species richness increased with rainfall and distance to the coast in recent forests, while it was higher in dryer sites in pre-existing forests. In addition, forest historical types showed differences in woody species composition associated to diverse environmental and past landscape factors. In view of these results we can conclude that: 1) community assembly in terms of species richness is fast enough to exhaust most colonization credit in recent Mediterranean forests except for vertebrate-dispersed species; 2) for these species, colonization credit is affected by the interplay of forest history and a set of proxies of niche and landscape constraints of species dispersal and establishment; 3) woody species assemblage is mostly shaped by the species’ ecological niches in these forests.\n

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\n \n\n \n \n \n \n \n \n Sex differences in androgen activation of complex courtship behaviour.\n \n \n \n \n\n\n \n Chiver, I.; and Schlinger, B., A.\n\n\n \n\n\n\n Animal Behaviour, 124: 109-117. 2017.\n \n\n\n\n
\n\n\n\n \n \n $\"Sex$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Sex differences in androgen activation of complex courtship behaviour},\n type = {article},\n year = {2017},\n keywords = {courtship,hormonal activation,manakin,mating behaviour,sexual differentiation,testosterone},\n pages = {109-117},\n volume = {124},\n websites = {http://dx.doi.org/10.1016/j.anbehav.2016.12.009},\n publisher = {Elsevier Ltd},\n id = {328783c8-21d2-3697-892e-9898a328fce2},\n created = {2018-04-22T22:19:27.548Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:23.688Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Sexual dimorphism is common but evolutionarily labile in vertebrates. While it is well established that gonadal hormones exert considerable influence on the development and expression of sexual traits, studies of animals with exceptional sexually dimorphic neural or neuromuscular phenotypes are limited. We studied the extent to which androgen treatment of female golden-collared manakins, Manacus vitellinus, activates specific elements of the elaborate, acrobatic courtship behaviour characteristic of males. After 1 week, nonbreeding females and juvenile males given implants containing testosterone (T) were observed for 3 weeks in an outdoor aviary situated in the middle of Panamanian rainforest. T-treated males performed the full suite of documented masculine courtship behaviours, whereas T-treated females performed only a few of these behaviours and then at much lower rates than males. T treatment did increase aggressive behaviour to a similar degree in both males and females. These results suggest that neuromuscular systems encoding elements of male courtship as well as aggressive behaviour experience unique patterns of development from complete to limited to nonexistent sexual differentiation. The basis of these patterns represents a unique opportunity for study.},\n bibtype = {article},\n author = {Chiver, Ioana and Schlinger, Barney A},\n doi = {10.1016/j.anbehav.2016.12.009},\n journal = {Animal Behaviour}\n}

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\n \n\n \n \n \n \n \n Nesting success of birds from Brazilian atlantic forest fragments.\n \n \n \n\n\n \n Marini, M., Â.\n\n\n \n\n\n\n Revista Brasileira de Ornitologia, 25(2): 77-83. 2017.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Nesting success of birds from Brazilian atlantic forest fragments},\n type = {article},\n year = {2017},\n keywords = {Breeding,Mayfield,Nest,Predation,Survival},\n pages = {77-83},\n volume = {25},\n id = {e59192b6-0f17-3d81-ac31-2ffaaf447442},\n created = {2019-10-15T16:59:46.590Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T17:59:11.771Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Several aspects of the ecology of tropical birds remain unresolved both descriptively and experimentally, in spite of the high diversity of birds and the high deforestation rates. Here, I evaluate, apparently for the first time, nesting success and predation levels of open and closed-cupped nesting birds in an avian community from Atlantic Forest fragments in southeastern Brazil. The monitoring of 257 nests of more than 22 species from 1995 to 1999 revealed that overall apparent nest success (42.4%) was in the upper range for tropical species. Daily survival rates (DSR) for 18 species ranged from 0.900-0.987. Total average survival probability was 55.9 for open cup and 60.1% for closed nests. There was no evidence for an edge effect on the success of either open cup or closed nests. Against predictions, apparent success of closed nests (43.6%) did not differ from open cup nests (38.1%). However, there were differences in apparent success within three types of closed nests. Closed nests higher above the ground had greater apparent nest success than lower nests, but this pattern did not occur for open cup nests. This study demonstrates that some patterns of nesting success might not hold for all Neotropical sites, especially disturbed ones. © 2017, Sociedade Brasileira de Ornitologia. All rights reserved.},\n bibtype = {article},\n author = {Marini, Miguel Ângelo},\n journal = {Revista Brasileira de Ornitologia},\n number = {2}\n}

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\n \n\n \n \n \n \n \n Host associations and turnover of haemosporidian parasites in manakins (Aves: Pipridae).\n \n \n \n\n\n \n Fecchio, A.; Svensson-Coelho, M.; Bell, J.; Ellis, V., A.; Medeiros, M., C.; Trisos, C., H.; Blake, J., G.; Loiselle, B., A.; Tobias, J., A.; Fanti, R.; Coffey, E., D.; De Faria, I., P.; Pinho, J., B.; Felix, G.; Braga, E., M.; Anciães, M.; Tkach, V.; Bates, J.; Witt, C.; Weckstein, J., D.; Ricklefs, R., E.; and Farias, I., P.\n\n\n \n\n\n\n Parasitology, 144(7): 984-993. 2017.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Host associations and turnover of haemosporidian parasites in manakins (Aves: Pipridae)},\n type = {article},\n year = {2017},\n keywords = {Avian malaria,community assembly,host switching,host turnover,parasite community,parasite diversity},\n pages = {984-993},\n volume = {144},\n id = {ef712edb-bf31-3d59-ac45-3385686141e4},\n created = {2019-10-17T16:42:06.128Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-17T16:42:06.128Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = { Parasites of the genera Plasmodium and Haemoproteus (Apicomplexa: Haemosporida) are a diverse group of pathogens that infect birds nearly worldwide. Despite their ubiquity, the ecological and evolutionary factors that shape the diversity and distribution of these protozoan parasites among avian communities and geographic regions are poorly understood. Based on a survey throughout the Neotropics of the haemosporidian parasites infecting manakins (Pipridae), a family of Passerine birds endemic to this region, we asked whether host relatedness, ecological similarity and geographic proximity structure parasite turnover between manakin species and local manakin assemblages. We used molecular methods to screen 1343 individuals of 30 manakin species for the presence of parasites. We found no significant correlations between manakin parasite lineage turnover and both manakin species turnover and geographic distance. Climate differences, species turnover in the larger bird community and parasite lineage turnover in non-manakin hosts did not correlate with manakin parasite lineage turnover. We also found no evidence that manakin parasite lineage turnover among host species correlates with range overlap and genetic divergence among hosts. Our analyses indicate that host switching (turnover among host species) and dispersal (turnover among locations) of haemosporidian parasites in manakins are not constrained at this scale. },\n bibtype = {article},\n author = {Fecchio, Alan and Svensson-Coelho, Maria and Bell, Jeffrey and Ellis, Vincenzo A. and Medeiros, Matthew C. and Trisos, Christopher H. and Blake, John G. and Loiselle, Bette A. and Tobias, Joseph A. and Fanti, Rebeka and Coffey, Elyse D. and De Faria, Iubatã P. and Pinho, João B. and Felix, Gabriel and Braga, Erika M. and Anciães, Marina and Tkach, Vasyl and Bates, John and Witt, Christopher and Weckstein, Jason D. and Ricklefs, Robert E. and Farias, Izeni P.},\n doi = {10.1017/S0031182017000208},\n journal = {Parasitology},\n number = {7}\n}

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\n \n\n \n \n \n \n \n \n The Critically Endangered and Endemic Araripe Manakin ( Antilophia bokermanni ): Dietary Assessment For Conservation Purposes.\n \n \n \n \n\n\n \n Gaiotti, M., G.; Mascarenhas, W.; and Macedo, R., H.\n\n\n \n\n\n\n The Wilson Journal of Ornithology, 129(4): 783-791. 12 2017.\n \n\n\n\n
\n\n\n\n \n \n $\"The$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {The Critically Endangered and Endemic Araripe Manakin ( Antilophia bokermanni ): Dietary Assessment For Conservation Purposes},\n type = {article},\n year = {2017},\n keywords = {adults,affecting both the,antilophia bokermanni,brazil,charnov and,conservation,diet,diet is one of,fecundity and survival of,foraging,frugivory,influencing a bird,pipridae,s life,the strongest selection pressures},\n pages = {783-791},\n volume = {129},\n websites = {http://www.bioone.org/doi/10.1676/16-140.1},\n month = {12},\n id = {d6b49d4b-78ef-3a30-9cb6-d5559ffc40e3},\n created = {2019-10-17T19:35:58.621Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-17T19:35:58.621Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Diet studies provide information about a species' ecology, evolution, and behavior. The Araripe Manakin (Antilophia bokermanni) is a critically endangered, endemic, and sexually dichromatic species from northeastern Brazil. Little is known about its natural history, and as an endangered bird, information about diet may be crucial for conservation plans. We analyzed the diet of Araripe Manakins and tested if food items and foraging behavior differed for males and females. We caught and banded birds, and analyzed fecal samples. Using focal observations, we collected foraging behavioral data, including vegetation strata used, foraging bout duration and gathering method. Based on data gathered from 40 females and 54 males, we found that the Araripe Manakins' diet contains both plant and animal items including 10 different types of fruits and three orders of invertebrates. Clidemia biserrata was the most important plant item consumed, representing 80% of the diet. There was a substantial overlap of 68% of food items in the diets between sexes, which did not differ statistically. However, male and female diets were unique in some aspects: females consumed more items having a more diverse diet when compared to males. Males, however, consumed more Coleoptera, and these were the second most important item in their diets. Since male and female foraging behavior does not differ, this result suggests that males choose to consume more beetles perhaps to maintain plumage color, since beetles are rich in carotenoids. Results also provide important data about which plants can be used in the management or recovery of Araripe Manakins' habitats. [ABSTRACT FROM AUTHOR]},\n bibtype = {article},\n author = {Gaiotti, MILENE G. and Mascarenhas, Wilmara and Macedo, Regina H.},\n doi = {10.1676/16-140.1},\n journal = {The Wilson Journal of Ornithology},\n number = {4}\n}

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\n \n\n \n \n \n \n \n Androgens support male acrobatic courtship behavior by enhancing muscle speed and easing the severity of its tradeoff with force.\n \n \n \n\n\n \n Fuxjager, M., J.; Miles, M., C.; Goller, F.; Petersen, J.; and Yancey, J.\n\n\n \n\n\n\n Endocrinology, 158(11): 4038-4046. 2017.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Androgens support male acrobatic courtship behavior by enhancing muscle speed and easing the severity of its tradeoff with force},\n type = {article},\n year = {2017},\n pages = {4038-4046},\n volume = {158},\n id = {516d1639-91ff-3cdb-84ff-e046e24ab840},\n created = {2020-03-28T21:41:36.203Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-03-28T21:41:36.203Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Steroid hormone action in the brain regulates many animals' elaborate social displays used for courtship and competition, but it is increasingly recognized that the periphery may also be a site for potent steroidal modulation of complex behavior. However, the mechanisms of such "bottom-up" regulation of behavioral outflow are largely unclear. To study this problem, we examined how androgenic sex hormones act through the skeletal muscular system to mediate elaborate courtship acrobatics in a tropical bird called the golden-collared manakin. As part of their display, males snap their wings together above their backs at rates that are at least 2×faster than the normal wing-beat frequency used for flight. This behavior, called the roll-snap, is actuated by repeatedly activating a humeral retractor muscle-the scapulohumeralis caudalis (SH)-which produces contractionrelaxation cycling speeds similar to the "superfast" muscles of other taxa. We report that endogenous androgenic activation of androgen receptor (AR) sustains this muscle's exceptionally rapid contractile kinetics, allowing the tissue to generate distinct wing movements at oscillation frequencies >100 Hz. We also show that these effects are rooted in an AR-dependent increase to contractile velocity, which incurs no detectable cost to force generation. Thus, AR enhances SH speed necessary for courtship display performance while avoiding the expected tradeoff with strength that could otherwise negatively influence aspects of flight. Peripheral AR therefore not only sets up the muscular system to perform a complex wing display, but does so in a way that balances the functional requirements of this muscle for other life-sustaining behavior.},\n bibtype = {article},\n author = {Fuxjager, Matthew J. and Miles, Meredith C. and Goller, Franz and Petersen, John and Yancey, Julia},\n doi = {10.1210/en.2017-00599},\n journal = {Endocrinology},\n number = {11}\n}

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\n \n 2016\n \n \n (12)\n \n \n

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\n \n\n \n \n \n \n \n \n Research resource: Hormones, genes, and athleticism: Effect of androgens on the avian muscular transcriptome.\n \n \n \n \n\n\n \n Fuxjager, M., J.; Lee, J., H.; Chan, T., M.; Bahn, J., H.; Chew, J., G.; Xiao, X.; and Schlinger, B., A.\n\n\n \n\n\n\n Molecular Endocrinology, 30(2): 254-271. 2016.\n \n\n\n\n
\n\n\n\n \n \n $\"Research$ Paper\n \n \n \n $\"Research$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Research resource: Hormones, genes, and athleticism: Effect of androgens on the avian muscular transcriptome},\n type = {article},\n year = {2016},\n pages = {254-271},\n volume = {30},\n websites = {https://academic.oup.com/mend/article-lookup/doi/10.1210/me.2015-1270},\n id = {a042c967-59d7-3770-b888-653150b40978},\n created = {2016-08-23T22:17:59.000Z},\n file_attached = {true},\n profile_id = {d132db1b-8e9a-3336-8a73-fcc7f47f1a66},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.773Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Male vertebrate social displays vary from physically simple to complex, with the latter involving exquisite motor command of the body and appendages. Studies of these displays have, in turn, provided substantial insight into neuromotor mechanisms. The neotropical golden-collared manakin (Manacus vitellinus) has been used previously as a model to investigate intricate motor skills because adult males of this species perform an acrobatic and androgen-dependent courtship display. To support this behavior, these birds express elevated levels of androgen receptors (AR) in their skeletal muscles. Here we use RNA sequencing to explore how testosterone (T) modulates the muscular transcriptome to support male manakin courtship displays. In addition, we explore how androgens influence gene expression in the muscles of the zebra finch (Taenopygia guttata), a model passerine bird with a limited courtship display and minimal muscle AR. We identify androgen- dependent, muscle-specific gene regulation in both species. In addition, we identify manakinspecific effects that are linked to muscle use during the manakin display, including androgenic regulation of genes associated with muscle fiber contractility, cellular homeostasis, and energetic efficiency. Overall, our results point to numerous genes and gene networks impacted by androgens in male birds, including some that underlie optimal muscle function necessary for performing acrobatic display routines. Manakins are excellent models to explore gene regulation promoting athletic ability.},\n bibtype = {article},\n author = {Fuxjager, Matthew J and Lee, Jae Hyung and Chan, Tak Ming and Bahn, Jae Hoon and Chew, Jenifer G and Xiao, Xinshu and Schlinger, Barney A},\n doi = {10.1210/me.2015-1270},\n journal = {Molecular Endocrinology},\n number = {2}\n}

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\n \n\n \n \n \n \n \n \n Associations between Manakin Display Complexity and Both Body and Brain Size Challenge Assumptions of Allometric Correction: A Response to Gutierrez-Ibanez et al. (2016).\n \n \n \n \n\n\n \n Day, L., B.; and Lindsay, W., R.\n\n\n \n\n\n\n Brain, Behavior and Evolution. 2016.\n \n\n\n\n
\n\n\n\n \n \n $\"Associations$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Associations between Manakin Display Complexity and Both Body and Brain Size Challenge Assumptions of Allometric Correction: A Response to Gutierrez-Ibanez et al. (2016)},\n type = {article},\n year = {2016},\n websites = {http://www.karger.com/?doi=10.1159/000446341},\n id = {f2f8d83c-680f-3933-9aee-49bea3f9141e},\n created = {2018-04-22T22:19:25.469Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:25.469Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Day, Lainy B. and Lindsay, Willow R.},\n doi = {10.1159/000446341},\n journal = {Brain, Behavior and Evolution}\n}

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\n \n\n \n \n \n \n \n Select forelimb muscles have evolved superfast contractile speed to support acrobatic social displays.\n \n \n \n\n\n \n Fuxjager, M., J.; Goller, F.; Dirkse, A.; Sanin, G., D.; and Garcia, S.\n\n\n \n\n\n\n eLife, 5(APRIL2016): 1-13. 2016.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Select forelimb muscles have evolved superfast contractile speed to support acrobatic social displays},\n type = {article},\n year = {2016},\n pages = {1-13},\n volume = {5},\n id = {86ceecc4-6015-37c4-a8f9-39d6ae0a11f1},\n created = {2018-04-22T22:19:25.663Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:25.663Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Many species perform rapid limb movements as part of their elaborate courtship displays. However, because muscle performance is constrained by trade-offs between contraction speed and force, it is unclear how animals evolve the ability to produce both unusually fast appendage movement and limb force needed for locomotion. To address this issue, we compare the twitch speeds of forelimb muscles in a group of volant passerine birds, which produce different courtship displays. Our results show that the two taxa that perform exceptionally fast wing displays have evolved 'superfast' contractile kinetics in their main humeral retractor muscle. By contrast, the two muscles that generate the majority of aerodynamic force for flight show unmodified contractile kinetics. Altogether, these results suggest that muscle-specific adaptations in contractile speed allow certain birds to circumvent the intrinsic trade-off between muscular speed and force, and thereby use their forelimbs for both rapid gestural displays and powered locomotion.},\n bibtype = {article},\n author = {Fuxjager, Matthew J. and Goller, Franz and Dirkse, Annika and Sanin, Gloria D. and Garcia, Sarah},\n doi = {10.7554/eLife.13544},\n journal = {eLife},\n number = {APRIL2016}\n}

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\n \n\n \n \n \n \n \n \n Climate, demography and lek stability in an Amazonian bird.\n \n \n \n \n\n\n \n Ryder, T., B.; and Sillett, T., S.\n\n\n \n\n\n\n Proceedings of the Royal Society B: Biological Sciences, 283(1823): 20152314. 1 2016.\n \n\n\n\n
\n\n\n\n \n \n $\"Climate,$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Climate, demography and lek stability in an Amazonian bird},\n type = {article},\n year = {2016},\n keywords = {Education reform,Personnel requirements,Psychiatry,Psychotherapist},\n pages = {20152314},\n volume = {283},\n websites = {http://rspb.royalsocietypublishing.org/lookup/doi/10.1098/rspb.2015.2314},\n month = {1},\n day = {13},\n id = {a9b9992e-388f-328a-9646-3476c9a6f450},\n created = {2018-04-22T22:19:27.808Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:27.808Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Mycotoxins are small (MW approximately 700), toxic chemical products formed as secondary metabolites by a few fungal species that readily colonise crops and contaminate them with toxins in the field or after harvest. Ochratoxins and Aflatoxins are mycotoxins of major significance and hence there has been significant research on broad range of analytical and detection techniques that could be useful and practical. Due to the variety of structures of these toxins, it is impossible to use one standard technique for analysis and/or detection. Practical requirements for high-sensitivity analysis and the need for a specialist laboratory setting create challenges for routine analysis. Several existing analytical techniques, which offer flexible and broad-based methods of analysis and in some cases detection, have been discussed in this manuscript. There are a number of methods used, of which many are lab-based, but to our knowledge there seems to be no single technique that stands out above the rest, although analytical liquid chromatography, commonly linked with mass spectroscopy is likely to be popular. This review manuscript discusses (a) sample pre-treatment methods such as liquid-liquid extraction (LLE), supercritical fluid extraction (SFE), solid phase extraction (SPE), (b) separation methods such as (TLC), high performance liquid chromatography (HPLC), gas chromatography (GC), and capillary electrophoresis (CE) and (c) others such as ELISA. Further currents trends, advantages and disadvantages and future prospects of these methods have been discussed.},\n bibtype = {article},\n author = {Ryder, Thomas B. and Sillett, T. Scott},\n doi = {10.1098/rspb.2015.2314},\n journal = {Proceedings of the Royal Society B: Biological Sciences},\n number = {1823}\n}

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\n \n\n \n \n \n \n \n \n Ecologia comportamental da rendeira (Manacus manacus): um pequeno pássaro dançarino das florestas de restinga da Estação Ecológica Juréia-Itatins.\n \n \n \n \n\n\n \n Cestari, C.\n\n\n \n\n\n\n Technical Report 2016.\n \n\n\n\n
\n\n\n\n \n \n $\"Ecologia$ Paper\n \n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@techreport{\n title = {Ecologia comportamental da rendeira (Manacus manacus): um pequeno pássaro dançarino das florestas de restinga da Estação Ecológica Juréia-Itatins},\n type = {techreport},\n year = {2016},\n source = {Juréia-Itatins" UNISANTA Bioscience},\n pages = {27-41},\n volume = {5},\n issue = {1},\n id = {8b5d1f2d-0108-353d-b18c-288ba824e0cc},\n created = {2019-02-18T17:45:15.502Z},\n file_attached = {true},\n profile_id = {d05effc8-927f-32e8-a098-4b34a7465a6a},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-02-18T17:45:18.186Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Resumo Informações detalhadas sobre a história natural e funções ecológicas das espécies auxiliam as decisões para protegê-las. Nesse sentido, a biodiversidade de espécies e a intensa atividade turística presentes na região da Estação Ecológica Juréia-Itatins (EEJI) fornecem as ferramentas adequadas para a disseminação do conhecimento ecológico e conservação. No presente manuscrito, eu descrevo as curiosidades comportamentais e interações ecológicas da rendeira (Manacus manacus), um pássaro dançarino e frugívoro muito comum nas restingas da região da EEJI, e que pode ser facilmente visualizada em suas "arenas de exibição" no solo da floresta ou procurando por frutos de diversas espécies vegetais. As informações disponibilizadas sobre (1) área e manobras de exibição, (2) hierarquia e agressividade e (3) frugivoria e dispersão de sementes pela rendeira foram coletadas em seis anos de estudos (2009-2015) na região e foram discutidas baseando-se estudos históricos sobre a biologia do gênero Manacus. Apesar de comum, a rendeira é pouco conhecida da maioria das pessoas que frequentam a EEJI. O fascinante comportamento de exibição reprodutiva associado às interações e funções ecológicas desta espécie (p.ex. consumo de frutos e dispersão de sementes) possui elevada importância para a manutenção do ecossistema da restinga e pode ser utilizado para despertar e intensificar a educação ambiental de visitantes. Abstract Detailed information about natural history and ecological functions of species support decisions to protect the biodiversity. In this sense, the biodiversity and tourism, both highly present in the region of Juréia Itatins Ecological Station (JIES), are adequate tools to disseminate the ecological knowledge and conservation. In this study, I describe ecological interactions and curiosities about the behavior of the white-bearded manakin (Manacus manacus), a common, frugivorous, and lekking bird from JIES and its bordering region. This species may be easily seen in arenas on the forest floor of restinga ecosystem or looking for several species of fruits on tree canopies. Information about (1) lek area and display maneuvers, (2) hierarchy and aggressiveness, and frugivory and seed dispersal by the white-bearded manakins were collected from 2009-2015 in EEJI and its bordering region and were here discussed based in historical studies about the biology of Manacus genus. Although common, the white-bearded manakin is rarely known by tourists. The amazing display behavior (called lek) associated with ecological interactions and functions (e.g., frugivory and seed dispersal of plants) of this species is highly important to the natural maintenance of the restinga ecosystem and here I highlight the use of this species to intensify environmental education of tourists. Palavras-chave: biodiversidade, educação ambiental, história natural, interações ecológicas, lek, Pipridae.},\n bibtype = {techreport},\n author = {Cestari, César}\n}

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\n Resumo Informações detalhadas sobre a história natural e funções ecológicas das espécies auxiliam as decisões para protegê-las. Nesse sentido, a biodiversidade de espécies e a intensa atividade turística presentes na região da Estação Ecológica Juréia-Itatins (EEJI) fornecem as ferramentas adequadas para a disseminação do conhecimento ecológico e conservação. No presente manuscrito, eu descrevo as curiosidades comportamentais e interações ecológicas da rendeira (Manacus manacus), um pássaro dançarino e frugívoro muito comum nas restingas da região da EEJI, e que pode ser facilmente visualizada em suas \"arenas de exibição\" no solo da floresta ou procurando por frutos de diversas espécies vegetais. As informações disponibilizadas sobre (1) área e manobras de exibição, (2) hierarquia e agressividade e (3) frugivoria e dispersão de sementes pela rendeira foram coletadas em seis anos de estudos (2009-2015) na região e foram discutidas baseando-se estudos históricos sobre a biologia do gênero Manacus. Apesar de comum, a rendeira é pouco conhecida da maioria das pessoas que frequentam a EEJI. O fascinante comportamento de exibição reprodutiva associado às interações e funções ecológicas desta espécie (p.ex. consumo de frutos e dispersão de sementes) possui elevada importância para a manutenção do ecossistema da restinga e pode ser utilizado para despertar e intensificar a educação ambiental de visitantes. Abstract Detailed information about natural history and ecological functions of species support decisions to protect the biodiversity. In this sense, the biodiversity and tourism, both highly present in the region of Juréia Itatins Ecological Station (JIES), are adequate tools to disseminate the ecological knowledge and conservation. In this study, I describe ecological interactions and curiosities about the behavior of the white-bearded manakin (Manacus manacus), a common, frugivorous, and lekking bird from JIES and its bordering region. This species may be easily seen in arenas on the forest floor of restinga ecosystem or looking for several species of fruits on tree canopies. Information about (1) lek area and display maneuvers, (2) hierarchy and aggressiveness, and frugivory and seed dispersal by the white-bearded manakins were collected from 2009-2015 in EEJI and its bordering region and were here discussed based in historical studies about the biology of Manacus genus. Although common, the white-bearded manakin is rarely known by tourists. The amazing display behavior (called lek) associated with ecological interactions and functions (e.g., frugivory and seed dispersal of plants) of this species is highly important to the natural maintenance of the restinga ecosystem and here I highlight the use of this species to intensify environmental education of tourists. Palavras-chave: biodiversidade, educação ambiental, história natural, interações ecológicas, lek, Pipridae.\n

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\n \n\n \n \n \n \n \n \n Trade-offs in male display activity with lek size.\n \n \n \n \n\n\n \n Cestari, C.; Loiselle, B., A.; and Pizo, M., A.\n\n\n \n\n\n\n PLoS ONE. 2016.\n \n\n\n\n
\n\n\n\n \n \n $\"Trade-offs$ Paper\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Trade-offs in male display activity with lek size},\n type = {article},\n year = {2016},\n id = {23c83057-538e-38ae-a63f-a896f9c49880},\n created = {2019-02-18T17:48:43.988Z},\n file_attached = {true},\n profile_id = {d05effc8-927f-32e8-a098-4b34a7465a6a},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-02-18T17:48:44.753Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {In lek mating systems, males aggregate and defend arenas where they display for females; females select and mate with a male and then solely raise their offspring.Generally, female visits and copulations increase and reproductive variance in male mating success declines with lek size. Herewe investigate how male display effort changes across a gradient in lek size.We expect male display effort, an energetically expensive activity, will increase with lek size and male rank due to changes in breeding opportunitiesand competitionamong males.We test the interaction of male rank and lek size on display effort using the white- bearded manakin, Manacus manacus (Aves: Pipridae),awell-studied species with a wide geographic distribution in the new world tropics.We used mini-video recorders to simulta- neously capture female visits and display behaviors of 41 males distributed over 10 leks. We found that overall display effort increased disproportionatelywith lek size due to males of both high and low ranks increasing their display effort at larger leks. Our results suggest that increased breeding opportunities and intrasexual competition at larger leks result in males of different ranks investing similarly in increased display effort in order to attract females.},\n bibtype = {article},\n author = {Cestari, César and Loiselle, Bette A. and Pizo, Marco Aurélio},\n doi = {10.1371/journal.pone.0162943},\n journal = {PLoS ONE}\n}

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\n \n\n \n \n \n \n \n \n Effects of avian malaria on male behaviour and female visitation in lekking blue-crowned manakins.\n \n \n \n \n\n\n \n Bosholn, M.; Fecchio, A.; Silveira, P.; Braga, É., M.; and Anciães, M.\n\n\n \n\n\n\n Journal of Avian Biology, 47(4): 457-465. 7 2016.\n \n\n\n\n
\n\n\n\n \n \n $\"Effects$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Effects of avian malaria on male behaviour and female visitation in lekking blue-crowned manakins},\n type = {article},\n year = {2016},\n pages = {457-465},\n volume = {47},\n websites = {http://doi.wiley.com/10.1111/jav.00864},\n month = {7},\n id = {b72a5369-7355-3082-bee2-18ea70905409},\n created = {2019-06-10T11:48:45.035Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-06-10T11:48:45.035Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {© 2015 The Authors.Avian malaria, the infection by blood parasites of the genus Plasmodium, can reduce host fitness not only through mortality, but also by impairing the expression of sexual selection traits. Although different studies highlight the association of parasitism with a decrease in host reproductive success, few studies have addressed the role of parasites in honest signalling by lekking species. Hence, it is still uncertain which fitness components are affected by parasites in these species. We investigated whether avian malaria is associated with a decrease in mating behaviour of male blue-crowned manakins Lepidothrix coronata and whether it affects female visitation in leks of a population in the central Amazon. Through behavioural observations, we estimated the rates of total male activity and social interaction, as well as the frequency of female visits at individual perches. We then examined if individuals were infected with Plasmodium spp. using molecular techniques. Avian malaria was associated with a decrease in male mating behaviour in each lek, and mating behaviour correlated with female visitation. Although rates of social interaction were not correlated with avian malaria among males, we observed that interacting with several individuals within a lek may be advantageous for males, as they also vocalized and displayed more, thus increasing their chances of being visited by females. Although female visitation was not associated with avian malaria in individuals or leks, it is still possible that female visitation is indirectly affected by avian malaria through the latter's effects on male activity. We suggest a role for male activity as an honest sexual signal for females. Thus, male display rate could be used by females as cue for the probability of a male being infected.},\n bibtype = {article},\n author = {Bosholn, Mariane and Fecchio, Alan and Silveira, Patricia and Braga, Érika M. and Anciães, Marina},\n doi = {10.1111/jav.00864},\n journal = {Journal of Avian Biology},\n number = {4}\n}

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\n \n\n \n \n \n \n \n \n Manakins can produce iridescent and bright feather colours without melanosomes.\n \n \n \n \n\n\n \n Igic, B.; D'Alba, L.; and Shawkey, M., D.\n\n\n \n\n\n\n The Journal of Experimental Biology, 219(12): 1851-1859. 6 2016.\n \n\n\n\n
\n\n\n\n \n \n $\"Manakins$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Manakins can produce iridescent and bright feather colours without melanosomes},\n type = {article},\n year = {2016},\n keywords = {animal coloration,brilliant white,inverse opal,iridescence,lepidothrix,manakin},\n pages = {1851-1859},\n volume = {219},\n websites = {http://jeb.biologists.org/lookup/doi/10.1242/jeb.137182},\n month = {6},\n day = {15},\n id = {41d4a7ea-93b5-3f48-a0a2-086be0f039a7},\n created = {2019-06-13T17:10:55.473Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-06-13T17:10:55.473Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Males of many species often use colourful and conspicuous ornaments to attract females. Among these, male manakins (family: Pipridae) provide classic examples of sexual selection favouring the evolution of bright and colourful plumage coloration. The highly iridescent feather colours of birds are most commonly produced by the periodic arrangement of melanin-containing organelles (melanosomes) within barbules. Melanin increases the saturation of iridescent colours seen from optimal viewing angles by absorbing back-scattered light; however, this may reduce the wide-angle brightness of these signals, contributing to a dark background appearance. We examined the nanostructure of four manakin species (Lepidothrix isidorei, L. iris, L. nattereri and L. coeruleocapilla) to identify how they produce their bright plumage colours. Feather barbs of all four species were characterized by dense and fibrous internal spongy matrices that likely increase scattering of light within the barb. The iridescent, yet pale or whitish colours of L. iris and L. nattereri feathers were produced not by periodically arranged melanosomes within barbules, but by periodic matrices of air and β-keratin within barbs. Lepidothrix iris crown feathers were able to produce a dazzling display of colours with small shifts in viewing geometry, likely because of a periodic nanostructure, a flattened barb morphology and disorder at a microstructural level. We hypothesize that iridescent plumage ornaments of male L. iris and L. nattereri are under selection to increase brightness or luminance across wide viewing angles, which may potentially increase their detectability by females during dynamic and fast-paced courtship displays in dim light environments.},\n bibtype = {article},\n author = {Igic, Branislav and D'Alba, Liliana and Shawkey, Matthew D.},\n doi = {10.1242/jeb.137182},\n journal = {The Journal of Experimental Biology},\n number = {12}\n}

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\n \n\n \n \n \n \n \n \n Trade-Offs in Male Display Activity with Lek Size.\n \n \n \n \n\n\n \n Cestari, C.; Loiselle, B., A.; and Pizo, M., A.\n\n\n \n\n\n\n PLOS ONE, 11(9): e0162943. 9 2016.\n \n\n\n\n
\n\n\n\n \n \n $\"Trade-Offs$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Trade-Offs in Male Display Activity with Lek Size},\n type = {article},\n year = {2016},\n pages = {e0162943},\n volume = {11},\n websites = {http://dx.plos.org/10.1371/journal.pone.0162943},\n month = {9},\n day = {28},\n id = {15128fd7-b251-3190-823b-4dbe7ffc0d56},\n created = {2019-10-03T14:01:16.160Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-03T14:01:16.160Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {© 2016 Cestari et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrest ricted use, distribution, and reproduction in any medium, provided the original author and source are credited. In lek mating systems, males aggregate and defend arenas where they display for females; females select and mate with a male and then solely raise their offspring. Generally, female visits and copulations increase and reproductive variance in male mating success declines with lek size. Here we investigate how male display effort changes across a gradient in lek size. We expect male display effort, an energetically expensive activity, will increase with lek size and male rank due to changes in breeding opportunities and competition among males. We test the interaction of male rank and lek size on display effort using the white-bearded manakin, Manacus manacus (Aves: Pipridae), a well-studied species with a wide geographic distribution in the new world tropics. We used mini-video recorders to simultaneously capture female visits and display behaviors of 41 males distributed over 10 leks. We found that overall display effort increased disproportionately with lek size due to males of both high and low ranks increasing their display effort at larger leks. Our results suggest that increased breeding opportunities and intrasexual competition at larger leks result in males of different ranks investing similarly in increased display effort in order to attract females.},\n bibtype = {article},\n author = {Cestari, César and Loiselle, Bette A. and Pizo, Marco Aurélio},\n editor = {Apollonio, Marco},\n doi = {10.1371/journal.pone.0162943},\n journal = {PLOS ONE},\n number = {9}\n}

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\n \n\n \n \n \n \n \n \n Seasonal patterns in δ 2 H values of multiple tissues from Andean birds provide insights into elevational migration.\n \n \n \n \n\n\n \n Villegas, M.; Newsome, S., D.; and Blake, J., G.\n\n\n \n\n\n\n Ecological Applications, 26(8): 2383-2389. 12 2016.\n \n\n\n\n
\n\n\n\n \n \n $\"Seasonal$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Seasonal patterns in δ 2 H values of multiple tissues from Andean birds provide insights into elevational migration},\n type = {article},\n year = {2016},\n keywords = {Andes,Bolivia,Chiroxiphia boliviana,Mionectes striaticollis,elevational migration,isoscapes,manakins,stable isotopes,δ2H},\n pages = {2383-2389},\n volume = {26},\n websites = {http://doi.wiley.com/10.1002/eap.1456},\n month = {12},\n id = {d5519073-701e-3f21-9904-6a86fac42be1},\n created = {2019-10-04T01:03:04.287Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-04T01:03:04.287Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Elevational migration is a widespread phenomenon in tropical avifauna but it is difficult to identify using traditional approaches. Hydrogen isotope (δ 2 H) values of precipitation decrease with elevation so δ 2 H analysis of multiple bird tissues with different isotopic incorporation rates may be a reliable method for characterizing seasonal elevational migration. Here we compare δ 2 H values in metabolically inert (feathers and claws) and metabolically active (whole blood) tissues to examine whether an upslope migration occurs prior to the breeding season in the Yungas Manakin (Chiroxiphia boliviana). We compare results from C. boliviana with data from a known elevational migrant, the Streak-necked Flycatcher (Mionectes striaticollis). Opposite to our expectations, tissue δ 2 H values increased over time, largely reflecting seasonal patterns in precipitation δ 2 H rather than elevational effects; linear mixed-effects models with strongest support included ordinal date, tissue type and elevation. This seasonal increase in precipitation δ 2 H is a general phenomenon in both tropical and temperate mountain ranges. We use these data to propose a hypothetical framework that predicts different patterns in tissue δ 2 H values collected in different seasons from residents and elevational migrants. This framework can serve as a reference for future studies that assess elevational migration in birds and other animals.},\n bibtype = {article},\n author = {Villegas, Mariana and Newsome, Seth D. and Blake, John G.},\n doi = {10.1002/eap.1456},\n journal = {Ecological Applications},\n number = {8}\n}

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\n \n\n \n \n \n \n \n Insularization effects on acoustic signals of 2 suboscine Amazonian birds.\n \n \n \n\n\n \n Bicudo, T.; Anciães, M.; Benchimol, M.; Peres, C., A.; and Simões, P., I.\n\n\n \n\n\n\n Behavioral Ecology, 27(5): 1480-1490. 2016.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Insularization effects on acoustic signals of 2 suboscine Amazonian birds},\n type = {article},\n year = {2016},\n keywords = {acoustic adaptation,character release,habitat fragmentation,hydropower projects,islands},\n pages = {1480-1490},\n volume = {27},\n id = {d7f1387c-cd2e-3611-8690-a5b83bef6845},\n created = {2019-10-15T16:49:33.272Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T16:59:47.644Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Environmental change may alter the communication systems of birds by\\nimposing shifts in their acoustic signals. In tropical forests, vocally\\nactive species usually avoid overlapping signals in acoustic space by\\ncalling within narrow frequency ranges, whereas in forest islands a less\\nsaturated acoustic space may allow variation in acoustic signals. Some\\nsignals are also adapted to optimize its propagation in the prevailing\\nhabitat. Despite a growing understanding of what drives acoustic\\nvariation, it is unclear if human-induced insularization of natural\\nlandscapes can unleash alterations in avian communication systems. We\\ninvestigated the variability of acoustic signal properties in 2\\nsuboscines birds (Lipaugus vociferans and Tyranneutes virescens) in\\nislands within an artificial lake created by the damming of the Uatuma\\nRiver, in Brazilian Amazonia. We tested if signal variability was\\nrelated to variation in acoustic community proxies (island area and\\nisolation), and vegetation structure by surveying 13 variable-sized\\nforest sites and 2 mainland continuous forest sites. Bandwidth variation\\nin L. vociferans songs was related to island area and isolation (N = 67\\ninds), but these relationships were not observed in T. virescens songs\\n(N = 69 inds). Additionally, the lowest and peak frequencies of songs of\\nboth species were higher in islands with greater tree basal area. In\\nboth species, temporal properties of songs were not associated with\\nvariation in island characteristics. Our study suggests that land-use\\nchanges may lead to alterations in particular traits of acoustic signals\\nfor species for which songs are innate.},\n bibtype = {article},\n author = {Bicudo, Thiago and Anciães, Marina and Benchimol, Maíra and Peres, Carlos A. and Simões, Pedro Ivo},\n doi = {10.1093/beheco/arw070},\n journal = {Behavioral Ecology},\n number = {5}\n}

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\n \n\n \n \n \n \n \n Patterns of local extinction in an Amazonian archipelagic avifauna following 25 years of insularization with Lserena and Pseudopipra (Dixiphia).\n \n \n \n\n\n \n Marco Aurélio-Silva, Marina Anciães, Luiza Magalli Pinto Henriques, Maíra Benchimol, C., A., P.\n\n\n \n\n\n\n Biological Conservation, 3(July). 2016.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n\n\n\n

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@article{\n title = {Patterns of local extinction in an Amazonian archipelagic avifauna following 25 years of insularization with Lserena and Pseudopipra (Dixiphia)},\n type = {article},\n year = {2016},\n keywords = {Avifauna Habitat fragmentation Hydroelectric dams},\n volume = {3},\n id = {e70b4ea7-e040-304e-a27a-526974ddd5d9},\n created = {2019-10-17T16:42:06.112Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-17T16:42:06.112Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Mega-hydroelectric dams in lowland Amazonia create large archipelagos of upland forest, yet few studies have taken advantage of these fragmented landscapes to examine the effects of habitat insularization on vertebrate populations. We investigated the effects of insularization on bird species richness and composition at 27 variable-sized islands formed by the Balbina Hydroelectric Reservoir in the central Brazilian Amazon after 25 years of isolation, which were compared to three mainland sites in adjacent continuous forest. Islands were characterized by patch and landscape metrics, and the local avifauna was surveyed at all sites (including 172 sampling points) four times using point counts, and twice using play-backs. Island size was the strongest predictor of species richness and similarity, whereas other metrics showed weak or no effect. On the basis of 61 forest bird species distributed across six foraging guilds, terrestrial omnivores and in- sectivores, small understorey frugivores and large-bodied trunk frugivore/fanivores comprised the guilds most affected by habitat insularization. Our results demonstrate a striking decline in avifaunal species richness, particularly in islands smaller than 55 ha, which represent ~ 90% of the ~ 3500 islands in the Balbina reservoir. We conclude that other major hydropower reservoirs across the lowland Amazonian basin are likely to experience similarly high avian extinction rates and suggest that the environmental licencing of these impoundments should be reassessed or at least include protected area offsets.},\n bibtype = {article},\n author = {Marco Aurélio-Silva, Marina Anciães, Luiza Magalli Pinto Henriques, Maíra Benchimol, Carlos A. Peres},\n journal = {Biological Conservation},\n number = {July}\n}

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\n \n 2015\n \n \n (10)\n \n \n

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\n \n\n \n \n \n \n \n \n Evolutionary patterns of adaptive acrobatics and physical performance predict expression profiles of androgen receptor - but not oestrogen receptor - in the forelimb musculature.\n \n \n \n \n\n\n \n Fuxjager, M., J.; Eaton, J.; Lindsay, W., R.; Salwiczek, L., H.; Rensel, M., A.; Barske, J.; Sorenson, L.; Day, L., B.; and Schlinger, B., A.\n\n\n \n\n\n\n Functional Ecology, 29(9): 1197-1208. 2015.\n \n\n\n\n
\n\n\n\n \n \n $\"Evolutionary$ Paper\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Evolutionary patterns of adaptive acrobatics and physical performance predict expression profiles of androgen receptor - but not oestrogen receptor - in the forelimb musculature},\n type = {article},\n year = {2015},\n keywords = {Manakins,Neuromuscular physiology,Sexual selection,Social display,Testosterone,Tropical birds},\n pages = {1197-1208},\n volume = {29},\n id = {866aeb28-bb34-3c10-8d96-ed1422a82e49},\n created = {2016-08-23T22:17:58.000Z},\n file_attached = {true},\n profile_id = {d132db1b-8e9a-3336-8a73-fcc7f47f1a66},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:25.141Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Superior physical competence is vital to the adaptive behavioural routines of many animals, particularly those that engage in elaborate sociosexual displays. How such traits evolve across species remains unclear. Recent work suggests that activation of sex steroid receptors in neuromuscular systems is necessary for the fine motor skills needed to execute physically elaborate displays. Thus, using passerine birds as models, we test whether interspecific variation in display complexity predicts species differences in the abundance of androgen and oestrogen receptors (AR and ER-α) expressed in the forelimb musculature and spinal cord. We find that small-scale evolutionary patterns in physical display complexity positively predict expression of AR in the main muscles that lift and retract the wings. No such relationship is detected in the spinal cord, and we do not find a correlation between display behaviour and neuromuscular expression of ER-α. Also, we find that AR expression levels in different androgen targets throughout the body - namely the wing muscles, spinal cord and testes - are not necessarily correlated, providing evidence that evolutionary forces drive AR expression in a tissue-specific manner. These results suggest co-evolution between the physical prowess necessary for display performance and levels of AR expression in avian forelimb muscles. Moreover, this relationship appears to be both specific to muscle and AR-mediated signalling. Given that prior work suggests that activation of muscular AR is a necessary component of physical display performance, our current data support the hypothesis that sexual selection shapes levels of AR expressed in the forelimb skeletal muscles to help drive the evolution of adaptive motor abilities.},\n bibtype = {article},\n author = {Fuxjager, Matthew J. and Eaton, Joy and Lindsay, Willow R. and Salwiczek, Lucie H. and Rensel, Michelle A. and Barske, Julia and Sorenson, Laurie and Day, Lainy B. and Schlinger, Barney A.},\n doi = {10.1111/1365-2435.12438},\n journal = {Functional Ecology},\n number = {9}\n}

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\n \n\n \n \n \n \n \n \n Variation in the performance of cross-contextual displays suggests selection on dual-male phenotypes in a lekking bird.\n \n \n \n \n\n\n \n Vanderbilt, C., C.; Kelley, J., P.; and DuVal, E., H.\n\n\n \n\n\n\n Animal Behaviour, 107: 213-219. 2015.\n \n\n\n\n
\n\n\n\n \n \n $\"Variation$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Variation in the performance of cross-contextual displays suggests selection on dual-male phenotypes in a lekking bird},\n type = {article},\n year = {2015},\n keywords = {communication,complex display,cooperation,entropy,manakin,sexual selection,social context},\n pages = {213-219},\n volume = {107},\n websites = {http://www.sciencedirect.com/science/article/pii/S0003347215002407},\n publisher = {Elsevier Ltd},\n id = {102b7a4d-24e0-34c1-8f50-f17c22ba4d2b},\n created = {2018-04-22T22:19:22.732Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:22.732Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Complex displays play an important role in female mate choice and male–male interactions for many species. Displays used in both inter- and intrasexual interactions offer an opportunity to examine how the ordering and structure of complex displays may vary with context. To understand how social context can influence the performance of complex displays, we investigated the predictability of display elements across displays in the presence and absence of females. The lance-tailed manakin, Chiroxiphia lanceolata, is a small lekking bird that performs complex, acrobatic displays. Pairs of alpha and beta males cooperatively display for females, but they also perform very similar displays in the absence of females. We quantified the performance of individual alpha and beta males within the dual-male display and the joint performance of the two males using Shannon's information entropy, and compared these values to understand how male display predictability varies with social context. Differences were assessed using generalized linear mixed models to account for repeated measures of male pairs. Predictability of individual performance within the dual-male interaction did not differ with female presence; however, entropy metrics describing the interaction of the alpha and beta male indicated that displays for females were more predictable and coordinated. This study provides a quantitative assessment of display element performance across different social contexts of female presence and absence, and suggests that the dual-male phenotype may be an important factor in female mate choice for cooperatively displaying species.},\n bibtype = {article},\n author = {Vanderbilt, Carla C. and Kelley, J. Patrick and DuVal, Emily H.},\n doi = {10.1016/j.anbehav.2015.06.023},\n journal = {Animal Behaviour}\n}

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\n \n\n \n \n \n \n \n \n The presence of a female influences courtship performance of male manakins.\n \n \n \n \n\n\n \n Barske, J.; Schlinger, B., a.; and Fusani, L.\n\n\n \n\n\n\n The Auk, 132(3): 594-603. 2015.\n \n\n\n\n
\n\n\n\n \n \n $\"The$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {The presence of a female influences courtship performance of male manakins},\n type = {article},\n year = {2015},\n keywords = {del despliegue de saltarines,female preference,hembra afecta el desempe,la presencia de una,lek,macho,manakins,motor skills,no,paired courtship,performance trait,sexual selection},\n pages = {594-603},\n volume = {132},\n websites = {http://www.bioone.org/doi/10.1642/AUK-14-92.1},\n id = {188dbc68-b452-3b30-8773-8884cc2d6bdb},\n created = {2018-04-22T22:19:22.929Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:22.929Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Barske, Julia and Schlinger, Barney a. and Fusani, Leonida},\n doi = {10.1642/AUK-14-92.1},\n journal = {The Auk},\n number = {3}\n}

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\n \n\n \n \n \n \n \n Acrobatic courtship display coevolves with brain size in manakins (Pipridae).\n \n \n \n\n\n \n Lindsay, W., R.; Houck, J., T.; Giuliano, C., E.; and Day, L., B.\n\n\n \n\n\n\n Brain, Behavior and Evolution, 85(1): 29-36. 2015.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Acrobatic courtship display coevolves with brain size in manakins (Pipridae)},\n type = {article},\n year = {2015},\n keywords = {Brain size,Courtship display,Manakins,Motor behavior,Pipridae,Sexual selection},\n pages = {29-36},\n volume = {85},\n id = {1ce78b57-fcba-3ef2-883d-4e44f67e7b31},\n created = {2018-04-22T22:19:24.082Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:24.082Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Acrobatic display behaviour is sexually selected in manakins (Pipridae) and can place high demands on many neural systems. Manakin displays vary across species in terms of behavioural complexity, differing in number of unique motor elements, production of mechanical sounds, cooperation between displaying males, and construction of the display site. Historically, research emphasis has been placed on neurological specializations for vocal aspects of courtship, and less is known about the control of physical, non-vocal displays. By examining brain evolution in relation to extreme acrobatic feats such as manakin displays, we can vastly expand our knowledge of how sexual selection acts on motor behaviour. We tested the hypothesis that sexual selection for complex motor displays has selected for larger brains across the Pipridae. We found that display complexity positively predicts relative brain weight (adjusted for body size) after controlling for phylogeny in 12 manakin species and a closely related flycatcher. This evidence suggests that brain size has evolved in response to sexual selection to facilitate aspects of display such as motor, sensorimotor, perceptual, and cognitive abilities. We show, for the first time, that sexual selection for acrobatic motor behaviour can drive brain size evolution in avian species and, in particular, a family of suboscine birds.},\n bibtype = {article},\n author = {Lindsay, Willow R. and Houck, Justin T. and Giuliano, Claire E. and Day, Lainy B.},\n doi = {10.1159/000369244},\n journal = {Brain, Behavior and Evolution},\n number = {1}\n}

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\n \n\n \n \n \n \n \n \n Androgen receptor expression could contribute to the honesty of a sexual signal and be the basis of species differences in courtship displays.\n \n \n \n \n\n\n \n Sewall, K., B.\n\n\n \n\n\n\n Functional Ecology, 29(9): 1111-1113. 2015.\n \n\n\n\n
\n\n\n\n \n \n $\"Androgen$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Androgen receptor expression could contribute to the honesty of a sexual signal and be the basis of species differences in courtship displays},\n type = {article},\n year = {2015},\n pages = {1111-1113},\n volume = {29},\n websites = {http://doi.wiley.com/10.1111/1365-2435.12498},\n id = {dd1e1c8e-2633-3e68-a482-579ed92fcc5b},\n created = {2018-04-22T22:19:26.186Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:26.186Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Sewall, Kendra B.},\n doi = {10.1111/1365-2435.12498},\n journal = {Functional Ecology},\n number = {9}\n}

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\n \n\n \n \n \n \n \n \n Loss of sexual dimorphism is associated with loss of lekking behavior in the green manakin\n Xenopipo holochora.\n \n \n \n \n\n\n \n Ribeiro, R., D.; McCormack, J., E.; Álvarez, H., G.; Carrasco, L.; Grether, G., F.; Mena-Olmedo, P.; Sedano, R.; Smith, T., B.; and Karubian, J.\n\n\n \n\n\n\n Journal of Avian Biology, (January): n/a-n/a. 2015.\n \n\n\n\n
\n\n\n\n \n \n $\"Loss$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Loss of sexual dimorphism is associated with loss of lekking behavior in the green manakin\n              Xenopipo holochora},\n type = {article},\n year = {2015},\n pages = {n/a-n/a},\n websites = {http://doi.wiley.com/10.1111/jav.00545},\n id = {057359dd-2ffb-338e-acfa-bef95d93fd44},\n created = {2018-04-22T22:19:26.325Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:26.325Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Ribeiro, Renata Durães and McCormack, John E. and Álvarez, Hernán G. and Carrasco, Luis and Grether, Gregory F. and Mena-Olmedo, Patricio and Sedano, Raul and Smith, Thomas B. and Karubian, Jordan},\n doi = {10.1111/jav.00545},\n journal = {Journal of Avian Biology},\n number = {January}\n}

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\n \n\n \n \n \n \n \n \n Perspectives on the evolution of animal dancing: a case study of manakins.\n \n \n \n \n\n\n \n Fuxjager, M., J.; and Schlinger, B., a.\n\n\n \n\n\n\n Current Opinion in Behavioral Sciences, 6(July): 7-12. 2015.\n \n\n\n\n
\n\n\n\n \n \n $\"Perspectives$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Perspectives on the evolution of animal dancing: a case study of manakins},\n type = {article},\n year = {2015},\n pages = {7-12},\n volume = {6},\n websites = {http://linkinghub.elsevier.com/retrieve/pii/S2352154615000856},\n id = {8bc51356-9bc7-33d8-b140-2070cad68dc5},\n created = {2018-04-22T22:19:26.618Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:26.618Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Fuxjager, Matthew J and Schlinger, Barney a},\n doi = {10.1016/j.cobeha.2015.06.007},\n journal = {Current Opinion in Behavioral Sciences},\n number = {July}\n}

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\n \n\n \n \n \n \n \n \n Telemetric and video assessment of female response to male vocal performance in a lek-mating manakin.\n \n \n \n \n\n\n \n Maynard, D., F.; Ward, K., a.; Doucet, S., M.; and Mennill, D., J.\n\n\n \n\n\n\n Behavioral Ecology, 26(1): 65-74. 2015.\n \n\n\n\n
\n\n\n\n \n \n $\"Telemetric$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Telemetric and video assessment of female response to male vocal performance in a lek-mating manakin},\n type = {article},\n year = {2015},\n keywords = {chiroxiphia linearis,duet,female mating behavior,frequency matching,lek,long-tailed manakin,male vocal behavior,mate attraction,temporal synchrony},\n pages = {65-74},\n volume = {26},\n websites = {http://www.beheco.oxfordjournals.org/cgi/doi/10.1093/beheco/aru137},\n id = {35399825-e11c-3ed9-ac91-e6be1d0425a8},\n created = {2018-04-22T22:19:26.741Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:26.741Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Maynard, D. F. and Ward, K.-a. a. and Doucet, S. M. and Mennill, D. J.},\n doi = {10.1093/beheco/aru137},\n journal = {Behavioral Ecology},\n number = {1}\n}

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\n \n\n \n \n \n \n \n \n Causes and consequences of variation in female mate search investment in a lekking bird.\n \n \n \n \n\n\n \n DuVal, E.; and Kapoor, J.\n\n\n \n\n\n\n Behavioral Ecology, 26(6): 1537-1547. 2015.\n \n\n\n\n
\n\n\n\n \n \n $\"Causes$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Causes and consequences of variation in female mate search investment in a lekking bird},\n type = {article},\n year = {2015},\n keywords = {Chiroxiphia lanceolata,automated telemetry,lekking,manakin,mate choice,mate search},\n pages = {1537-1547},\n volume = {26},\n websites = {https://academic.oup.com/beheco/article-lookup/doi/10.1093/beheco/arv110},\n id = {753124b7-b6c7-315a-87d7-a7b608777694},\n created = {2019-10-03T13:47:34.531Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-03T13:47:34.531Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Why do females faced with the same array of potential mates often select different males? Variation in choosiness, defined as investment in mate search, is an important potential source of variation in mating decisions. Experimental work suggests such variation is driven by the costs of searching, but data from natural populations are scarce and few studies have addressed explicitly the counteracting benefits expected from search investment. We tracked male visitation behavior of free-ranging females on a lek of lance-tailed manakins (Chiroxiphia lanceolata) using automated telemetry at dispersed male display sites. We assessed relationships of female age, experience, body condition, and parasite load with variation in choosiness, quantified as males visited, number of visits, and visit duration. Young females visited more males and made more total visits before choosing a mate, whereas older females conducted longer visits for first nests of the year. Renesting females searched less, but the few monitored females mating faithfully between years nevertheless sampled several males. We found little support for effects of condition on choosiness. Results suggest females sample more widely when they lack information about the distribution of available mates. Though previous work in the study population has shown both female preference for and offspring fitness benefits from heterozygous sires, genetic tests of paternity revealed choosier females did not choose more heterozygous mates. Females' investment in mate search varied in relation to their own age and within-year experience, but mate search investment did not independently determine variation in choice among individuals.},\n bibtype = {article},\n author = {DuVal, E.H. and Kapoor, J.A.},\n doi = {10.1093/beheco/arv110},\n journal = {Behavioral Ecology},\n number = {6}\n}

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\n \n\n \n \n \n \n \n Island vs. countryside biogeography: An examination of how Amazonian birds respond to forest clearing and fragmentation.\n \n \n \n\n\n \n Wolfe, J., D.; Stouffer, P., C.; Mokross, K.; Powell, L., L.; and Anciaes, M.\n\n\n \n\n\n\n Ecosphere, 6(12): 1-14. 2015.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Island vs. countryside biogeography: An examination of how Amazonian birds respond to forest clearing and fragmentation},\n type = {article},\n year = {2015},\n keywords = {Balbina,Central Amazon,Continuous forest,Countryside biogeography,Forest fragment,Island biogeography,Second growth matrix,Species richness,Tropical bird},\n pages = {1-14},\n volume = {6},\n id = {3766a063-0623-3869-8ab0-87607a74922d},\n created = {2019-10-15T16:49:32.480Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T17:59:12.165Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {© 2015 DuFour et al. Avian diversity in fragmented Amazonian landscapes depends on a balance between extinction and colonization in cleared and disturbed areas. Regenerating forest facilitates bird dispersal within degraded Amazonian landscapes and may tip the balance in favor of persistence in habitat patches. Determining the response of Amazonian birds to fragmentation may be hindered because many species use adjacent second growth matrices thereby limiting the applicability of island biogeography to predict species loss; alternatively, a countryside biogeographic framework to evaluate the value of regenerating forest may be more appropriate. Here, we used point-count and capture data to compare Amazonian bird communities among continuous forest, 100 ha forest fragments with adjacent second growth, young and older second growth plots, and 100 ha forested islands bounded by water, to test the applicability of island biogeography on the mainland and to assess the ecological value of a regenerating matrix. Among foraging guilds, understory insectivores and flocking species were nearly absent on true islands. Fragments surrounded by young second growth were species rich, suggesting that a developing matrix may mitigate extinction associated with fragmentation. Our findings reinforce that true islands are often extinctiondriven systems with distinct, depauperate communities. In contrast, succession of bird communities in second growth facilitates recolonization of forest fragments, permitting fragments as small as 100 ha to support bird communities similar to continuous forest.},\n bibtype = {article},\n author = {Wolfe, Jared D. and Stouffer, Philip C. and Mokross, Karl and Powell, Luke L. and Anciaes, Marina},\n doi = {10.1890/ES15-00322.1},\n journal = {Ecosphere},\n number = {12}\n}

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\n \n 2014\n \n \n (12)\n \n \n

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\n \n\n \n \n \n \n \n Cooperative courtship display in Long-tailed Manakins Chiroxiphia linearis: Predictors of courtship success revealed through full characterization of display.\n \n \n \n\n\n \n Lukianchuk, K., C.; and Doucet, S., M.\n\n\n \n\n\n\n Journal of Ornithology, 155(3): 729-743. 2014.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Cooperative courtship display in Long-tailed Manakins Chiroxiphia linearis: Predictors of courtship success revealed through full characterization of display},\n type = {article},\n year = {2014},\n keywords = {Chiroxiphia,Courtship display,Courtship success,Manakin,Sequence,Stereotypy},\n pages = {729-743},\n volume = {155},\n id = {efa75e43-a68c-3133-a8e4-cbb648cd5112},\n created = {2018-04-22T22:19:21.666Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:21.666Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The Pipridae comprise 52 species of manakins with a wide variety of courtship behaviours, ranging from solitary display, to traditional leks, to cooperative display. Long-tailed Manakins (Chiroxiphia linearis) exhibit an exploded lek-breeding system wherein two unrelated males cooperate to perform complex courtship displays for females. Our objectives in this study were to fully characterize the courtship display of Long-tailed Manakins, to evaluate the sequence and stereotypy of the display, and to investigate specific predictors of copulation success. Whereas the display of Long-tailed Manakins has traditionally been divided into two major parts, the hopping display and the butterfly display, we identified and characterized 16 individual display elements within these larger components of the display. We also determined that some aspects of the display are highly structured and stereotypical in performance, such that certain elements of the display are highly likely to be preceded or followed by particular elements. Nevertheless, other aspects of the display were much more flexible in terms of element sequence. We also found that the length and rate of performance of individual display elements were highly variable across displays. We therefore evaluated whether individual elements of the display could predict courtship success. Our results show that a number of highly correlated elements, namely upright postures, bounces, angel flights, and bows, can predict whether a display ends in copulation with a female. This research enhances our understanding of male display behaviour and female choice in Long-tailed Manakins, and may shed some light on the evolution of complex courtship displays in birds. © 2014 Dt. Ornithologen-Gesellschaft e.V.},\n bibtype = {article},\n author = {Lukianchuk, K. C. and Doucet, S. M.},\n doi = {10.1007/s10336-014-1059-3},\n journal = {Journal of Ornithology},\n number = {3}\n}

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\n\n\n\n\n\n

\n\n\n

\n \n\n \n \n \n \n \n A young manakin knows his place: Evidence for an age-graded dominance hierarchy among long-tailed manakins.\n \n \n \n\n\n \n Lukianchuk, K., C.; and Doucet, S., M.\n\n\n \n\n\n\n Ethology, 120(7): 693-701. 2014.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {A young manakin knows his place: Evidence for an age-graded dominance hierarchy among long-tailed manakins},\n type = {article},\n year = {2014},\n keywords = {Chiroxiphia,Dominance hierarchy,Long-tailed manakin,Status signalling},\n pages = {693-701},\n volume = {120},\n id = {204becfd-7dfa-3b72-8527-1339c6647cc2},\n created = {2018-04-22T22:19:22.415Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:22.415Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {In lek-breeding systems where many males gather at display sites, males benefit from the establishment of dominance hierarchies to reduce intrasexual aggression and the associated risk of injuries. Long-tailed manakins (Chiroxiphia linearis) exhibit an exploded lek-breeding system wherein the two top-ranking males at each display site team up to perform elaborate coordinated courtship displays for females. Young males undergo delayed plumage maturation whereby they acquire distinct pre-definitive plumage patterns each year until they attain definitive plumage in their fifth year. This unique characteristic is thought to have evolved as a status-signalling mechanism to aid in the establishment of an age-graded dominance hierarchy in which older males are dominant to younger males. Previous research has shown evidence for such a dominance hierarchy among alpha and beta males; however, the presence of this hierarchy among males of other age classes has never been quantified. In this study, we investigated the presence of an age-graded dominance hierarchy by determining whether older males direct more aggressive behaviours towards younger males. We also investigated whether status signalling is less clear within age classes than between age classes, by determining whether males within the same age class exhibit more aggression towards each other. We found that older males performed aggressive behaviours towards younger males much more frequently than younger males performed aggressive behaviours towards older males. We also found that some aggressive interactions occurred between males within the same age class more frequently than between males from different age classes. Our study provides some evidence for an age-graded dominance hierarchy among male long-tailed manakins of all age classes and also provides some support for the status-signalling hypothesis. However, further research is needed to conclusively establish the presence of a linear dominance hierarchy among younger male manakins. This research may help us better understand the evolution of complex hierarchical systems in animals. © 2014 Blackwell Verlag GmbH.},\n bibtype = {article},\n author = {Lukianchuk, Katrina C. and Doucet, Stéphanie M.},\n doi = {10.1111/eth.12240},\n journal = {Ethology},\n number = {7}\n}

\n

\n\n\n

\n In lek-breeding systems where many males gather at display sites, males benefit from the establishment of dominance hierarchies to reduce intrasexual aggression and the associated risk of injuries. Long-tailed manakins (Chiroxiphia linearis) exhibit an exploded lek-breeding system wherein the two top-ranking males at each display site team up to perform elaborate coordinated courtship displays for females. Young males undergo delayed plumage maturation whereby they acquire distinct pre-definitive plumage patterns each year until they attain definitive plumage in their fifth year. This unique characteristic is thought to have evolved as a status-signalling mechanism to aid in the establishment of an age-graded dominance hierarchy in which older males are dominant to younger males. Previous research has shown evidence for such a dominance hierarchy among alpha and beta males; however, the presence of this hierarchy among males of other age classes has never been quantified. In this study, we investigated the presence of an age-graded dominance hierarchy by determining whether older males direct more aggressive behaviours towards younger males. We also investigated whether status signalling is less clear within age classes than between age classes, by determining whether males within the same age class exhibit more aggression towards each other. We found that older males performed aggressive behaviours towards younger males much more frequently than younger males performed aggressive behaviours towards older males. We also found that some aggressive interactions occurred between males within the same age class more frequently than between males from different age classes. Our study provides some evidence for an age-graded dominance hierarchy among male long-tailed manakins of all age classes and also provides some support for the status-signalling hypothesis. However, further research is needed to conclusively establish the presence of a linear dominance hierarchy among younger male manakins. This research may help us better understand the evolution of complex hierarchical systems in animals. © 2014 Blackwell Verlag GmbH.\n

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\n \n\n \n \n \n \n \n Age-dependent relationships between multiple sexual pigments and condition in males and females.\n \n \n \n\n\n \n Grunst, A., S.; Rotenberry, J., T.; and Grunst, M., L.\n\n\n \n\n\n\n Behavioral Ecology, 25(2): 276-287. 2014.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Age-dependent relationships between multiple sexual pigments and condition in males and females},\n type = {article},\n year = {2014},\n keywords = {Age-dependent sexual signaling,Carotenoids,Multiple ornaments,Phaeomelanin},\n pages = {276-287},\n volume = {25},\n id = {5d1d8976-42ce-3937-b5fc-7f0e0b3bfe65},\n created = {2018-04-22T22:19:22.677Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:22.677Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The reliability of sexual signaling may change across age classes due to shifts in resource allocation patterns. Two contrasting hypoth- eses exist regarding how the condition dependence of ornaments may shift with age, and both have received empirical support. On one hand, ornaments may more reliably reflect condition and quality in older individuals, because younger individuals of high qual- ity invest in survival over signaling effort. On the other hand, the condition dependence of ornaments may decline with age, if older individuals in poor condition terminally invest in ornaments, or if resource constraints decline with age. Further, the expression and condition dependence of different ornaments may shift with age in unique ways, such that multifaceted sexual displays maintain reli- able signaling across age classes. In yellow warblers (Setophaga petechia) of both sexes, we assessed how relationships between carotenoid- and phaeomelanin-based sexual pigmentation, prenesting body reserves, and condition at molt (reflected by growth bars and feather quality) vary across age classes. Melanin coverage correlated with condition at molt across age classes in males and showed high repeatability in both sexes. In contrast, carotenoid saturation increased longitudinally with age in males and correlated with condition at molt in different age classes in the 2 sexes. Specifically, carotenoid saturation correlated positively with condition at molt in younger, but not older males, whereas in females, the situation was reversed, with a positive correlation present only in older females. Results suggest that age-dependent signaling may promote maintenance of multifaceted sexual displays and that age- dependent signaling dynamics depend on sex.},\n bibtype = {article},\n author = {Grunst, Andrea S. and Rotenberry, John T. and Grunst, Melissa L.},\n doi = {10.1093/beheco/art124},\n journal = {Behavioral Ecology},\n number = {2}\n}

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\n \n\n \n \n \n \n \n \n Differential allocation in a lekking bird: females lay larger eggs and are more likely to have male chicks when they mate with less related males.\n \n \n \n \n\n\n \n Sardell, R., J.; and DuVal, E., H.\n\n\n \n\n\n\n Proceedings of the Royal Society B: Biological Sciences, 281(1774): 1. 2014.\n \n\n\n\n
\n\n\n\n \n \n $\"Differential$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Differential allocation in a lekking bird: females lay larger eggs and are more likely to have male chicks when they mate with less related males.},\n type = {article},\n year = {2014},\n keywords = {ANIMAL offspring sex ratio,BIOCOMPATIBILITY,DIFFERENTIAL Ability Scales,HETEROZYGOSITY,MANAKINS (Birds),SEXUAL behavior,SEXUAL behavior in animals,compatibility,differential allocation,inbreeding avoidance,inbreeding depression,maternal effects,relatedness},\n pages = {1},\n volume = {281},\n websites = {10.1098/rspb.2013.2386%5Cnhttp://offcampus.lib.washington.edu/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=a9h&AN=92711633&site=ehost-live},\n id = {5f8bd31e-a545-3d77-8a57-cf0902c58a34},\n created = {2018-04-22T22:19:23.236Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:23.236Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The differential allocation hypothesis predicts increased investment in offspring when females mate with high-quality males. Few studies have tested whether investment varies with mate relatedness, despite evidence that non-additive gene action influences mate and offspring genetic quality. We tested whether female lekking lance-tailed manakins (Chiroxiphia lanceolata) adjust offspring sex and egg volume in response to mate attractiveness (annual reproductive success, ARS), heterozygosity and relatedness. Across 968 offspring, the probability of being male decreased with increasing parental relatedness but not father ARS or heterozygosity. This correlation tended to diminish with increasing lay-date. Across 162 offspring, egg volume correlated negatively with parental relatedness and varied with lay-date, but was unrelated to father ARS or heterozygosity. Offspring sex and egg size were unrelated to maternal age. Comparisons of maternal half-siblings in broods with no mortality produced similar results, indicating differential allocation rather than covariation between female quality and relatedness or sex-specific inbreeding depression in survival. As males suffer greater inbreeding depression, overproducing females after mating with related males may reduce fitness costs of inbreeding in a system with no inbreeding avoidance, while biasing the sex of outbred offspring towards males may maximize fitness via increased mating success of outbred sons. [ABSTRACT FROM AUTHOR]},\n bibtype = {article},\n author = {Sardell, Rebecca J and DuVal, Emily H},\n doi = {10.1098/rspb.2013.2386},\n journal = {Proceedings of the Royal Society B: Biological Sciences},\n number = {1774}\n}

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\n \n\n \n \n \n \n \n \n Physiological control of elaborate male courtship: Female choice for neuromuscular systems.\n \n \n \n \n\n\n \n Fusani, L.; Barske, J.; Day, L., D.; Fuxjager, M., J.; and Schlinger, B., a.\n\n\n \n\n\n\n Neuroscience & Biobehavioral Reviews, 46: 534-546. 10 2014.\n \n\n\n\n
\n\n\n\n \n \n $\"Physiological$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Physiological control of elaborate male courtship: Female choice for neuromuscular systems},\n type = {article},\n year = {2014},\n pages = {534-546},\n volume = {46},\n websites = {http://www.ncbi.nlm.nih.gov/pubmed/25086380,http://linkinghub.elsevier.com/retrieve/pii/S0149763414001821},\n month = {10},\n publisher = {Elsevier Ltd},\n day = {31},\n id = {025d8e24-b4eb-3cd5-adc9-d1bf929483b9},\n created = {2018-04-22T22:19:23.608Z},\n accessed = {2014-10-15},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:23.608Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Males of many animal species perform specialized courtship behaviours to gain copulations with females. Identifying physiological and anatomical specializations underlying performance of these behaviours helps clarify mechanisms through which sexual selection promotes the evolution of elaborate courtship. Our knowledge about neuromuscular specializations that support elaborate displays is limited to a few model species. In this review, we focus on the physiological control of the courtship of a tropical bird, the golden-collared manakin, which has been the focus of our research for nearly 20 years. Male manakins perform physically elaborate courtship displays that are quick, accurate and powerful. Females seem to choose males based on their motor skills suggesting that neuromuscular specializations possessed by these males are driven by female choice. Male courtship is activated by androgens and androgen receptors are expressed in qualitatively and quantitatively unconventional ways in manakin brain, spinal cord and skeletal muscles. We propose that in some species, females select males based on their neuromuscular capabilities and acquired skills and that elaborate steroid-dependent courtship displays evolve to signal these traits.},\n bibtype = {article},\n author = {Fusani, Leonida and Barske, Julia and Day, Lainy D and Fuxjager, Matthew J and Schlinger, Barney a},\n doi = {10.1016/j.neubiorev.2014.07.017},\n journal = {Neuroscience & Biobehavioral Reviews}\n}

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\n \n\n \n \n \n \n \n \n Small and variable sperm sizes suggest low sperm competition despite multiple paternity in a lekking suboscine bird.\n \n \n \n \n\n\n \n Sardell, R., J.; and DuVal, E., H.\n\n\n \n\n\n\n The Auk, 131(4): 660-671. 2014.\n \n\n\n\n
\n\n\n\n \n \n $\"Small$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Small and variable sperm sizes suggest low sperm competition despite multiple paternity in a lekking suboscine bird},\n type = {article},\n year = {2014},\n keywords = {chiroxiphia lanceolata,lek,manakin,multiple paternity,sperm competition,sperm morphology},\n pages = {660-671},\n volume = {131},\n websites = {http://www.bioone.org/doi/abs/10.1642/AUK-14-38.1},\n id = {41f98b35-5f52-3484-ad8f-f58c21207c17},\n created = {2018-04-22T22:19:24.519Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:24.519Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Sardell, Rebecca J. and DuVal, Emily H.},\n doi = {10.1642/AUK-14-38.1},\n journal = {The Auk},\n number = {4}\n}

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\n \n\n \n \n \n \n \n Female mating preferences and offspring survival: Testing hypotheses on the genetic basis of mate choice in a wild lekking bird.\n \n \n \n\n\n \n Sardell, R., J.; Kempenaers, B.; and Duval, E., H.\n\n\n \n\n\n\n Molecular Ecology, 23(4): 933-946. 2014.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Female mating preferences and offspring survival: Testing hypotheses on the genetic basis of mate choice in a wild lekking bird},\n type = {article},\n year = {2014},\n keywords = {compatibility,genetic benefits,good genes,inbreeding avoidance,relatedness},\n pages = {933-946},\n volume = {23},\n id = {6c9388ad-a573-39a8-b20f-ec5f225a5ab5},\n created = {2018-04-22T22:19:24.971Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:24.971Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Indirect benefits of mate choice result from increased offspring genetic quality and may be important drivers of female behaviour. 'Good-genes-for-viability' models predict that females prefer mates of high additive genetic value, such that offspring survival should correlate with male attractiveness. Mate choice may also vary with genetic diversity (e.g. heterozygosity) or compatibility (e.g. relatedness), where the female's genotype influences choice. The relative importance of these nonexclusive hypotheses remains unclear. Leks offer an excellent opportunity to test their predictions, because lekking males provide no material benefits and choice is relatively unconstrained by social limitations. Using 12 years of data on lekking lance-tailed manakins, Chiroxiphia lanceolata, we tested whether offspring survival correlated with patterns of mate choice. Offspring recruitment weakly increased with father attractiveness (measured as reproductive success, RS), suggesting attractive males provide, if anything, only minor benefits via offspring viability. Both male RS and offspring survival until fledging increased with male heterozygosity. However, despite parent-offspring correlation in heterozygosity, offspring survival was unrelated to its own or maternal heterozygosity or to parental relatedness, suggesting survival was not enhanced by heterozygosity per se. Instead, offspring survival benefits may reflect inheritance of specific alleles or nongenetic effects. Although inbreeding depression in male RS should select for inbreeding avoidance, mates were not less related than expected under random mating. Although mate heterozygosity and relatedness were correlated, selection on mate choice for heterozygosity appeared stronger than that for relatedness and may be the primary mechanism maintaining genetic variation in this system despite directional sexual selection.},\n bibtype = {article},\n author = {Sardell, Rebecca J. and Kempenaers, Bart and Duval, Emily H.},\n doi = {10.1111/mec.12652},\n journal = {Molecular Ecology},\n number = {4}\n}

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\n \n\n \n \n \n \n \n \n The keystone individual concept: an ecological and evolutionary overview.\n \n \n \n \n\n\n \n Modlmeier, A., P.; Keiser, C., N.; Watters, J., V.; Sih, A.; and Pruitt, J., N.\n\n\n \n\n\n\n Animal Behaviour, 89: 53-62. 3 2014.\n \n\n\n\n
\n\n\n\n \n \n $\"The$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n\n\n\n

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@article{\n title = {The keystone individual concept: an ecological and evolutionary overview},\n type = {article},\n year = {2014},\n keywords = {collective decision making},\n pages = {53-62},\n volume = {89},\n websites = {http://linkinghub.elsevier.com/retrieve/pii/S0003347213005745},\n month = {3},\n publisher = {Elsevier Ltd},\n id = {1b465c4a-eadc-38ab-a5a5-af39ad5eed5c},\n created = {2018-04-22T22:19:26.319Z},\n accessed = {2014-10-21},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:26.319Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Modlmeier, Andreas P. and Keiser, Carl N. and Watters, Jason V. and Sih, Andy and Pruitt, Jonathan N.},\n doi = {10.1016/j.anbehav.2013.12.020},\n journal = {Animal Behaviour}\n}

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\n \n\n \n \n \n \n \n \n Structure of male cooperation networks at long-tailed manakin leks.\n \n \n \n \n\n\n \n Edelman, A., J.; and McDonald, D., B.\n\n\n \n\n\n\n Animal Behaviour, 97: 125-133. 10 2014.\n \n\n\n\n
\n\n\n\n \n \n $\"Structure$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Structure of male cooperation networks at long-tailed manakin leks},\n type = {article},\n year = {2014},\n pages = {125-133},\n volume = {97},\n websites = {http://linkinghub.elsevier.com/retrieve/pii/S0003347214003406},\n month = {10},\n publisher = {Elsevier Ltd},\n id = {6f46c567-2213-39ac-80cc-c56d9c02d6b7},\n created = {2018-04-22T22:19:26.806Z},\n accessed = {2014-10-02},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:26.806Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Edelman, Andrew J. and McDonald, David B.},\n doi = {10.1016/j.anbehav.2014.09.004},\n journal = {Animal Behaviour}\n}

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\n \n\n \n \n \n \n \n \n Individual and temporal variability in the courtship behavior of White-ruffed Manakins ( Corapipo altera ), a species with facultative cooperative displays.\n \n \n \n \n\n\n \n Jones, M., A.; DuVal, E., H.; and Boyle, W., A.\n\n\n \n\n\n\n The Auk, 131(4): 727-742. 10 2014.\n \n\n\n\n
\n\n\n\n \n \n $\"Individual$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Individual and temporal variability in the courtship behavior of White-ruffed Manakins ( Corapipo altera ), a species with facultative cooperative displays},\n type = {article},\n year = {2014},\n keywords = {cooperation,coordination,cortejo de corapipo altera,courtship display,despliegues cooperativos facultativos,en el comportamiento de,exploded lek,pipridae,una especie con,variabilidad individual y temporal},\n pages = {727-742},\n volume = {131},\n websites = {https://academic.oup.com/auk/article/131/4/727-742/5149397},\n month = {10},\n id = {ea695814-d23f-3042-872c-056553cf506c},\n created = {2018-04-22T22:19:26.980Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-03-13T14:19:06.921Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Investigation of the ecological and evolutionary basis for the often-intriguing courtship behavior of animals requires that we understand the patterns of variation inherent in such behaviors. The courtship displays of the White-ruffed Manakin (Corapipo altera) are not well-known, and previously published descriptions and interpretations of displays conflict with one another. We studied the reproductive behavior of C altera during 6 breeding seasons, observing 72 display courts (mean 29 +/- 2.5 courts annually) for a total of 2688 hr. We updated the behavioral characterization of C. altera by reconciling 8 previous ethologies and describing 2 new behavioral elements, vouchering all with audio and video recordings. We evaluated evidence for the occurrence of male male cooperation and characterized the physical attributes and temporal dynamics of displays and display courts. We found strong evidence of cooperation among males; 32% of displays for females were highly coordinated displays performed by 2 males, and 8% of those ended in copulation. Males of the highest social status (alphas) retained that status for an average of 1.7 yr (range 1.5 mo to >= 5 yr). Most alphas remained at a single court during their alpha tenure and rarely declined in social status. Only 23% of second-ranked (beta) males transitioned to alpha status, and of those 70% became alphas at a new display court. Display courts did not seem to be limited because few measured physical attributes differed between active display logs and random logs. Several elements of C. altera display behavior and social organization were more variable than in other manakin species, including high turnover of the display courts. This work provides key information for comparative studies investigating the evolution of cooperation in Pipridae.},\n bibtype = {article},\n author = {Jones, Megan A and DuVal, Emily H. and Boyle, W Alice},\n doi = {10.1642/auk-14-96.1},\n journal = {The Auk},\n number = {4}\n}

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\n \n\n \n \n \n \n \n \n Expression of androgen receptor in the brain of a sub-oscine bird with an elaborate courtship display.\n \n \n \n \n\n\n \n Fusani, L.; Donaldson, Z.; London, S., E.; Fuxjager, M., J.; and Schlinger, B., a.\n\n\n \n\n\n\n Neuroscience letters, 578: 61-5. 8 2014.\n \n\n\n\n
\n\n\n\n \n \n $\"Expression$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Expression of androgen receptor in the brain of a sub-oscine bird with an elaborate courtship display.},\n type = {article},\n year = {2014},\n pages = {61-5},\n volume = {578},\n websites = {http://www.ncbi.nlm.nih.gov/pubmed/24954076},\n month = {8},\n publisher = {Elsevier Ireland Ltd},\n day = {22},\n id = {c8cc37ad-d382-3a6b-88b9-e035958f963a},\n created = {2018-04-22T22:19:27.520Z},\n accessed = {2014-09-24},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:27.520Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Sex steroids control vertebrate behavior by modulating neural circuits specialized for sex steroid sensitivity. In birds, receptors for androgens (AR) and estrogens (ERα) show conserved expression in neural circuits controlling copulatory and vocal behaviors. Male golden-collared manakins have become a model for evaluating hormonal control of complex physical courtship displays. These birds perform visually and acoustically elaborate displays involving considerable neuromuscular coordination. Androgens activate manakin courtship and AR are expressed widely in spinal circuits and peripheral muscles utilized in courtship. Using in situ hybridization, we report here the distributions of AR and ERα mRNA in the brains of golden-collared manakins. Overall patterns of AR and ERα mRNA expression resemble what has been observed in non-vocal learning species. Notably, however, we detected a large area of AR expression in the arcopallium, a forebrain region that contains a crucial premotor song nucleus in vocal learning species. These results support the idea that AR signaling both centrally and peripherally is responsible for the activation of male manakin courtship, and the arcopallium is likely a premotor site for AR-mediated displays.},\n bibtype = {article},\n author = {Fusani, Leonida and Donaldson, Zoe and London, Sarah E and Fuxjager, Matthew J and Schlinger, Barney a},\n doi = {10.1016/j.neulet.2014.06.028},\n journal = {Neuroscience letters}\n}

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\n \n\n \n \n \n \n \n \n Court cleaning behavior of the White-Bearded Manakin (Manacus manacus) and a test of the anti-predation hypothesis.\n \n \n \n \n\n\n \n Cestari, C.; and Pizo, M., A.\n\n\n \n\n\n\n Wilson Journal of Ornithology, 126(1): 98-104. 2014.\n \n\n\n\n
\n\n\n\n \n \n $\"Court$ Paper\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Court cleaning behavior of the White-Bearded Manakin (Manacus manacus) and a test of the anti-predation hypothesis},\n type = {article},\n year = {2014},\n keywords = {Atlantic forest,lek,manakins,plumage conspicuousness},\n pages = {98-104},\n volume = {126},\n id = {25f4591d-c6f5-350e-8302-6c9cbf7b1a41},\n created = {2019-02-18T17:43:02.935Z},\n file_attached = {true},\n profile_id = {d05effc8-927f-32e8-a098-4b34a7465a6a},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T01:19:35.107Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {The cleaning of display courts is used by several forest lekking birds to possibly serve as an anti-predation strategy against terrestrial predators. Using a pit viper replica in the leaf litter 10-20 cm from the court (camouflaged predator) and in the central cleared area of the court (non-camouflaged predator) of the White-bearded Manakin Manacus manacus we tested experimentally the anti-predation hypothesis. We also described the phenology of court cleaning by lekking males, and tested the relationship between court cleaning and the frequencies of display bouts by males, visits to courts by females, and the amount of debris falling on courts. Results showed that court cleaning had a defensive role against terrestrial predators, optimizing the time of detection of potential terrestrial predators in the cleared courts. Court cleaning was positively correlated with court visits by females, which may be related to the improvement of a male's plumage conspicuousness by enhancing the plumage contrast against the cleared court, as already demonstrated for M. vitellinus. If this is the case, then court cleaning may serve a dual role, as an anti-predation strategy and to enhance sexual exhibition by lekking males. © Copyright 2014 by the Wilson Ornithological Society.},\n bibtype = {article},\n author = {Cestari, César and Pizo, Marco Aurélio},\n doi = {10.1676/13-032.1},\n journal = {Wilson Journal of Ornithology},\n number = {1}\n}

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\n \n\n \n \n \n \n \n \n Peripheral androgen receptors sustain the acrobatics and fine motor skill of elaborate male courtship.\n \n \n \n \n\n\n \n Fuxjager, M., J.; Longpre, K., M.; Chew, J., G.; Fusani, L.; and Schlinger, B., A.\n\n\n \n\n\n\n Endocrinology, 154(9): 3168-3177. 2013.\n \n\n\n\n
\n\n\n\n \n \n $\"Peripheral$ Paper\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Peripheral androgen receptors sustain the acrobatics and fine motor skill of elaborate male courtship},\n type = {article},\n year = {2013},\n pages = {3168-3177},\n volume = {154},\n id = {757fa55f-c9eb-3804-a7f7-0275b9b77495},\n created = {2016-08-23T22:17:57.000Z},\n file_attached = {true},\n profile_id = {d132db1b-8e9a-3336-8a73-fcc7f47f1a66},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:25.054Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Androgenic hormones regulate many aspects of animal social behavior, including the elaborate display routines on which many species rely for advertisement and competition. One way that this might occur is through peripheral effects of androgens, particularly on skeletal muscles that control complex movements and postures of the body and its limbs. However, the specific contribution of peripheral androgen-muscle interactions to the performance of elaborate behavioral displays in the natural world has never been examined. We study this issue in one of the only natural physiological models of animal acrobatics: the golden-collared manakin (Manacus vitellinus). In this tropical bird, males compete with each other and court females by producing firecracker-like wingsnaps and by rapidly dancing among saplings over the forest floor. To test how activation of peripheral androgen receptors(AR)influences this display, we treat reproductively active adult male birds with the peripherally selective antiandrogen bicalutamide (BICAL) and observe the effects of this manipulation on male display performance. We not only validate the peripheral specificity of BICAL in this species, but we also show that BICAL treatment reduces the frequency with which adult male birds perform their acrobatic display maneuvers and disrupts the overall structure and fine-scale patterning of these birds' main complex wing-snap sonation. In addition, this manipulation has no effect on the behavioral metrics associated with male motivation to display. Together, our findings help differentiate the various effects of peripheral and central AR on the performance of a complex socio sexual behavioral phenotype by indicating that peripheral AR can optimize the motor skills necessary for the production of an elaborate animal display.},\n bibtype = {article},\n author = {Fuxjager, Matthew J. and Longpre, Kristy M. and Chew, Jennifer G. and Fusani, Leonida and Schlinger, Barney A.},\n doi = {10.1210/en.2013-1302},\n journal = {Endocrinology},\n number = {9}\n}

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\n \n\n \n \n \n \n \n Diversity, prevalence, and host specificity of avian plasmodium and Haemoproteus in a western Amazon assemblage.\n \n \n \n\n\n \n Svensson-Coelho, M.; Blake, J., G.; Loiselle, B., A.; Penrose, A., S.; Parker, P., G.; and Ricklefs, R., E.\n\n\n \n\n\n\n Ornithological Monographs, 76: 1-47. 2013.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Diversity, prevalence, and host specificity of avian plasmodium and Haemoproteus in a western Amazon assemblage},\n type = {article},\n year = {2013},\n keywords = {Avian malaria,Neotropics,avian blood parasites,community ecology,compound community,parasite diversity,parasite prevalence.},\n pages = {1-47},\n volume = {76},\n id = {57942f2b-d273-3ed8-8fac-04876def0282},\n created = {2016-10-25T13:36:13.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:23.879Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {We used PCR and DNA sequencing to screen for haemosporidian parasites (Haemoproteus and Plasmodium) in 2,488 individual birds from 104 species and 22 families, primarily understory suboscine passerines, captured in a lowland Amazonian forest in Ecuador as a first major step to understanding the transmission dynamics of this cosmopolitan group of parasites in this region. To assess diversity of avian haemosporidia in our study site, we identifiedputative evolutionary lineages of haemosporidia using the mtDNA gene cytochrome b (cyt b). We sampled birds over 9 years, which allowed us to assess annual variation in haemosporidian prevalence. Additionally, we investigated among-species variation in prevalence and testedrelationships between traits of hosts and prevalence of haemosporidia in a comparative analysis. Finally, we estimated host specificity of each recovered parasite lineage and compared several indices with different details of host information. Prevalence of haemosporidia was 21.7% when we combined years and ranged from 5.6% to 91.2% among well-sampled host species. Prevalence varied significantly among years, ranging from 14.5% in 2006 to 33.2% in 2009. The hypothesis that haemosporidian prevalence increases with level of sexual dimorphism and decreases with foraging height of a host species received some support. We identified 65 unique cyt b haplotypes, some of which we considered variation within the same evolutionary lineage. In total, we defined 45 putative evolutionary lineages based on 363 identified parasites. Fourteen haplotypes were identical to haplotypes found elsewhere, sometimes on different continents. Host specificity varied greatly among parasite lineages. Collectively, our findings indicate that within a local Neotropical assemblage of avian haemosporidia, community organization is highly complex and part of this complexity can be attributed to differences in host life history; diversity, particularly of Plasmodium spp., is high; and individual parasite lineages can differ greatly in both abundance and number of host species. © The American Ornithologists' Union, 2013.},\n bibtype = {article},\n author = {Svensson-Coelho, Maria and Blake, John G. and Loiselle, Bette A. and Penrose, Amanda S. and Parker, Patricia G. and Ricklefs, Robert E.},\n doi = {10.1525/om.2013.76.1.1},\n journal = {Ornithological Monographs}\n}

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\n We used PCR and DNA sequencing to screen for haemosporidian parasites (Haemoproteus and Plasmodium) in 2,488 individual birds from 104 species and 22 families, primarily understory suboscine passerines, captured in a lowland Amazonian forest in Ecuador as a first major step to understanding the transmission dynamics of this cosmopolitan group of parasites in this region. To assess diversity of avian haemosporidia in our study site, we identifiedputative evolutionary lineages of haemosporidia using the mtDNA gene cytochrome b (cyt b). We sampled birds over 9 years, which allowed us to assess annual variation in haemosporidian prevalence. Additionally, we investigated among-species variation in prevalence and testedrelationships between traits of hosts and prevalence of haemosporidia in a comparative analysis. Finally, we estimated host specificity of each recovered parasite lineage and compared several indices with different details of host information. Prevalence of haemosporidia was 21.7% when we combined years and ranged from 5.6% to 91.2% among well-sampled host species. Prevalence varied significantly among years, ranging from 14.5% in 2006 to 33.2% in 2009. The hypothesis that haemosporidian prevalence increases with level of sexual dimorphism and decreases with foraging height of a host species received some support. We identified 65 unique cyt b haplotypes, some of which we considered variation within the same evolutionary lineage. In total, we defined 45 putative evolutionary lineages based on 363 identified parasites. Fourteen haplotypes were identical to haplotypes found elsewhere, sometimes on different continents. Host specificity varied greatly among parasite lineages. Collectively, our findings indicate that within a local Neotropical assemblage of avian haemosporidia, community organization is highly complex and part of this complexity can be attributed to differences in host life history; diversity, particularly of Plasmodium spp., is high; and individual parasite lineages can differ greatly in both abundance and number of host species. © The American Ornithologists' Union, 2013.\n

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\n \n\n \n \n \n \n \n Apparent survival rates of forest birds in eastern ecuador revisited: Improvement in precision but no change in estimates.\n \n \n \n\n\n \n Blake, J., G.; and Loiselle, B., A.\n\n\n \n\n\n\n PLoS ONE, 8(12). 2013.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Apparent survival rates of forest birds in eastern ecuador revisited: Improvement in precision but no change in estimates},\n type = {article},\n year = {2013},\n volume = {8},\n id = {4b9d63b7-185c-38c1-95a5-268ca1b50c15},\n created = {2016-10-25T13:36:14.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:23.946Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Knowledge of survival rates of Neotropical landbirds remains limited, with estimates of apparent survival available from relatively few sites and species. Previously, capture-mark-recapture models were used to estimate apparent survival of 31 species (30 passerines, 1 Trochilidae) from eastern Ecuador based on data collected from 2001 to 2006. Here, estimates are updated with data from 2001-2012 to determine how additional years of data affect estimates; estimates for six additional species are provided. Models assuming constant survival had highest support for 19 of 31 species when based on 12 years of data compared to 27 when based on six; models incorporating effects of transients had the highest support for 12 of 31 species compared to four when based on 12 and six years, respectively. Average apparent survival based on the most highly-supported model (based on model averaging, when appropriate) was 0.59 (±0.02 SE) across 30 species of passerines when based on 12 years and 0.57 (±0.02) when based on six. Standard errors of survival estimates based on 12 years were approximately half those based on six years. Of 31 species in both data sets, estimates of apparent survival were somewhat lower for 13, somewhat higher for 17, and remained unchanged for one; confidence intervals for estimates based on six and 12 years of data overlapped for all species. Results indicate that estimates of apparent survival are comparable but more precise when based on longer-term data sets; standard error of the estimates was negatively correlated with numbers of captures (rs =20.72) and recaptures (rs =20.93, <,0.001 in both cases). Thus, reasonable estimates of apparent survival may be obtained with relatively few years of data if sample sizes are sufficient. Copyright: © 2013 Blake, Loiselle.},\n bibtype = {article},\n author = {Blake, John G. and Loiselle, Bette A.},\n doi = {10.1371/journal.pone.0081028},\n journal = {PLoS ONE},\n number = {12}\n}

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\n \n\n \n \n \n \n \n \n Potential trade-off between vocal ornamentation and spatial ability in a songbird.\n \n \n \n \n\n\n \n Sewall, K., B.; Soha, J., a.; Peters, S.; and Nowicki, S.\n\n\n \n\n\n\n Biology letters, 9(4). 2013.\n \n\n\n\n
\n\n\n\n \n \n $\"Potential$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Potential trade-off between vocal ornamentation and spatial ability in a songbird.},\n type = {article},\n year = {2013},\n keywords = {behaviour,cognition},\n volume = {9},\n websites = {http://www.ncbi.nlm.nih.gov/pubmed/23697642},\n id = {b99b4971-4ba3-36b4-935b-5353ea901e03},\n created = {2018-04-22T22:19:21.666Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:21.666Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Bird song is hypothesized to be a reliable indicator of cognition because it depends on brain structure and function. Song features have been found to correlate positively with measures of cognition, but the relationship between song and cognition is complicated because not all cognitive abilities are themselves positively correlated. If cognition is not a unitary trait, developmental constraints on brain growth could generate trade-offs between some aspects of cognition and song. To further clarify the relationship between song and cognition in song sparrows (Melospiza melodia), we examined repertoire size and performance on a spatial task. We found an inverse relationship between repertoire size and speed of spatial learning and suggest that a developmental trade-off between the hippocampus and song control nuclei could be responsible for this relationship. By attending to male song, females may learn about a suite of cognitive abilities; this study suggests that females may glean information about a male's cognitive weaknesses as well as his strengths.},\n bibtype = {article},\n author = {Sewall, Kendra B and Soha, Jill a and Peters, Susan and Nowicki, Stephen},\n doi = {10.1098/rsbl.2013.0344},\n journal = {Biology letters},\n number = {4}\n}

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\n \n\n \n \n \n \n \n \n Molecular phylogeny of the manakins (Aves: Passeriformes: Pipridae), with a new classification and the description of a new genus.\n \n \n \n \n\n\n \n Ohlson, J., I.; Fjeldså, J.; and Ericson, P., G., P.\n\n\n \n\n\n\n Molecular phylogenetics and evolution, 69(3): 796-804. 12 2013.\n \n\n\n\n
\n\n\n\n \n \n $\"Molecular$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Molecular phylogeny of the manakins (Aves: Passeriformes: Pipridae), with a new classification and the description of a new genus.},\n type = {article},\n year = {2013},\n keywords = {Animals,Bayes Theorem,Biological Evolution,Cell Nucleus,Cell Nucleus: genetics,Genes, Mitochondrial,Introns,Introns: genetics,Likelihood Functions,Passeriformes,Passeriformes: classification,Passeriformes: genetics,Phylogeny,Sequence Analysis, DNA},\n pages = {796-804},\n volume = {69},\n websites = {http://www.ncbi.nlm.nih.gov/pubmed/23831559},\n month = {12},\n publisher = {Elsevier Inc.},\n id = {fc95abba-5579-3fe3-9df1-6316cc52a8e0},\n created = {2018-04-22T22:19:22.116Z},\n accessed = {2014-09-21},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:22.116Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The phylogenetic relationships within the manakin family (Pipridae) were investigated with sequence data from three nuclear introns and one mitochondrial protein-coding gene. This study confirms a sister group relationship between Neopelminae and Piprinae. We also find support for dividing the Piprinae into two principal clades: Ilicurini and Piprini. The genera Pipra and Chloropipo are found to be polyphyletic. Chloropipo species are placed in three different clades, including two species in an unresolved position alongside Ilicurini and Piprini. We propose a new classification of the family, where the most important modifications include recognizing the genus Ceratopipra for five species formerly placed in Pipra and the erection of a new genus for Chloropipo holochlora.},\n bibtype = {article},\n author = {Ohlson, Jan I and Fjeldså, Jon and Ericson, Per G P},\n doi = {10.1016/j.ympev.2013.06.024},\n journal = {Molecular phylogenetics and evolution},\n number = {3}\n}

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\n \n\n \n \n \n \n \n Energetics of the acrobatic courtship in male golden-collared manakins (Manacus vitellinus).\n \n \n \n\n\n \n Barske, J.; Fusani, L.; Wikelski, M.; Feng, N., Y.; Santos, M.; and Schlinger, B., A.\n\n\n \n\n\n\n Proceedings of the Royal Society B: Biological Sciences, 281(1776). 2013.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Energetics of the acrobatic courtship in male golden-collared manakins (Manacus vitellinus)},\n type = {article},\n year = {2013},\n keywords = {Courtship,Energetics,Heart rate telemetry,Manakins,Tropics},\n volume = {281},\n id = {ed565772-e471-3e88-b971-d4bbce162893},\n created = {2018-04-22T22:19:27.239Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:25.460Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {In lek mating systems, females choose mates through indicators of quality, which males may exhibit by their performance of courtship displays. In temperate regions, displaying seasons are brief (one to two months), whereas in the tropics courtship seasons may be prolonged. Moreover, in temperatebreeding animals lekking behaviour can be energetically demanding, but little is known about the energy costs of lekking in tropical animals. Daily, over the course of a nearly seven-month-long breeding season, male golden-collared manakins (Manacus vitellinus) of Panamanian rainforests perform acrobatic courtship displays that markedly elevate heart rates, suggesting that they require high energy investment. Typically, animals of tropical low-land forests (such as manakins) exhibit a 'slow pace of life' metabolic strategy.We investigated whether male manakin courtship is indeed metabolically costly or whether the birds retain a lowdaily energy expenditure (DEE), as seen in other tropical species. To assess these questions, we calibrated manakin heart rate against metabolic rate, examined daily lek activity and, using telemetry, obtained heart rates of individual wild, lekking male manakins. Although metabolic rates peak during courtship displays, we found that males actually invest minimal time (only approx. 5 min d-1) performing displays. As a consequence, the DEE of approximately 39 kJ d-1 for male manakins is comparable to other lowland tropical species. The short, intense bursts of courtship by these birds make up only approximately 1.2% of their total DEE. Presumably, this cost is negligible, enabling them to perform daily at their arenas for months on end. © 2013 The Author(s).},\n bibtype = {article},\n author = {Barske, J and Fusani, L and Wikelski, M and Feng, N Y and Santos, M and Schlinger, B A},\n doi = {10.1098/rspb.2013.2482},\n journal = {Proceedings of the Royal Society B: Biological Sciences},\n number = {1776}\n}

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\n \n\n \n \n \n \n \n \n Hormones and the neuromuscular control of courtship in the golden-collared manakin (Manacus vitellinus).\n \n \n \n \n\n\n \n Schlinger, B., a.; Barske, J.; Day, L.; Fusani, L.; and Fuxjager, M., J.\n\n\n \n\n\n\n Frontiers in neuroendocrinology, 34(3): 143-56. 8 2013.\n \n\n\n\n
\n\n\n\n \n \n $\"Hormones$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Hormones and the neuromuscular control of courtship in the golden-collared manakin (Manacus vitellinus).},\n type = {article},\n year = {2013},\n keywords = {3-Oxo-5-alpha-Steroid 4-Dehydrogenase,3-Oxo-5-alpha-Steroid 4-Dehydrogenase: metabolism,Androgen Receptor Antagonists,Androgen Receptor Antagonists: pharmacology,Animals,Aromatase,Aromatase: metabolism,Brain,Brain: physiology,Courtship,Estrogens,Estrogens: physiology,Female,Flutamide,Flutamide: pharmacology,Male,Motor Neurons,Motor Neurons: physiology,Muscle, Skeletal,Muscle, Skeletal: physiology,Neuroendocrinology,Passeriformes,Passeriformes: physiology,Receptors, Androgen,Receptors, Androgen: physiology,Seasons,Sexual Behavior, Animal,Sexual Behavior, Animal: drug effects,Sexual Behavior, Animal: physiology,Spinal Cord,Spinal Cord: physiology,Testosterone,Testosterone: physiology,Vocalization, Animal,Vocalization, Animal: physiology},\n pages = {143-56},\n volume = {34},\n websites = {http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=3995001&tool=pmcentrez&rendertype=abstract},\n month = {8},\n publisher = {Elsevier Inc.},\n id = {1340576b-c202-3a99-b28f-6a58d2563d0a},\n created = {2018-04-22T22:19:27.429Z},\n accessed = {2014-12-05},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:27.429Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Many animals engage in spectacular courtship displays, likely recruiting specialized neural, hormonal and muscular systems to facilitate these performances. Male golden-collared manakins (Manacus vitellinus) of Panamanian rainforests perform physically elaborate courtship displays that include novel forms of visual and acoustic signaling. We study the behavioral neuroendocrinology of this male's courtship, combining field behavioral observations with anatomical, biochemical and molecular laboratory-based studies. Seasonally, male courtship is activated by testosterone with little correspondence between testosterone levels and display intensity. Females prefer males whose displays are exceptionally frequent, fast and accurate. The activation of androgen receptors (AR) is crucial for optimal display performance, with AR expressed at elevated levels in several neuromuscular tissues. Apparently, courtship enlists an elaborate androgen-dependent network that includes spinal motoneurons, skeletal muscles and somatosensory systems. This work highlights the value of studying non-traditional species to illuminate physiological adaptations and, hopefully, stimulates future research on other species with complex behaviors.},\n bibtype = {article},\n author = {Schlinger, Barney a and Barske, Julia and Day, Lainy and Fusani, Leonida and Fuxjager, Matthew J},\n doi = {10.1016/j.yfrne.2013.04.001},\n journal = {Frontiers in neuroendocrinology},\n number = {3}\n}

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\n \n\n \n \n \n \n \n \n Female mate fidelity in a Lek mating system and its implications for the evolution of cooperative lekking behavior.\n \n \n \n \n\n\n \n DuVal, E., H.\n\n\n \n\n\n\n American Naturalist, 181(2): 213-22. 2013.\n \n\n\n\n
\n\n\n\n \n \n $\"Female$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Female mate fidelity in a Lek mating system and its implications for the evolution of cooperative lekking behavior.},\n type = {article},\n year = {2013},\n keywords = {Animal,Animal: physiology,Animals,Biological Evolution,Choice Behavior,Choice Behavior: physiology,Cooperative Behavior,Female,Linear Models,Male,Nesting Behavior,Nesting Behavior: physiology,Panama,Passeriformes,Passeriformes: physiology,Sexual Behavior},\n pages = {213-22},\n volume = {181},\n websites = {http://www.ncbi.nlm.nih.gov/pubmed/23348775},\n id = {56453194-2ae5-343a-838b-dfda6809bed8},\n created = {2018-04-22T22:19:27.804Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:27.804Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The extent and importance of female mate fidelity in polygynous mating systems are poorly known. Fidelity may contribute to high variance in male reproductive success when it favors attractive mates or may stabilize social interactions if females are faithful to mating sites rather than males. Using 12 years of data on genetic mate choice in the cooperatively lekking lance-tailed manakin (Chiroxiphia lanceolata), I investigated the frequency of fidelity within and between years, whether females were faithful to individual males or to mating sites across years, and whether fidelity favored attractive males. Mate fidelity occurred in 41.7% of 120 between-year comparisons and was observed for 41.1% of 73 individual females that had the opportunity to mate faithfully. Females were not more likely to mate at prior mating sites when previous mates were replaced. Faithful females mated with the same male in up to four consecutive years but were not disproportionately faithful to attractive partners. Mating history influences current mate choice, and fidelity in this lekking system apparently represents active mate choice by females but little is not cited in the text. Please provide a citation or mark this reference for deletion.consensus in mate choices among faithful females. This study underscores the prevalence of mate fidelity in polygynous mating systems and emphasizes the need to consider the larger context of lifetime reproductive behavior when interpreting patterns of female choice.},\n bibtype = {article},\n author = {DuVal, E. H.},\n doi = {10.1086/668830},\n journal = {American Naturalist},\n number = {2}\n}

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\n \n\n \n \n \n \n \n \n Estimates of dietary overlap for six species of Amazonian manakin birds using stable isotopes.\n \n \n \n \n\n\n \n Fair, J., M.; Ryder, T., B.; Loiselle, B., a.; Blake, J., G.; Larson, T., E.; Davis, P.; Syme, J.; Perkins, G., B.; and Heikoop, J., M.\n\n\n \n\n\n\n Isotopes in Environmental and Health Studies, 49(3): 420-435. 2013.\n \n\n\n\n
\n\n\n\n \n \n $\"Estimates$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Estimates of dietary overlap for six species of Amazonian manakin birds using stable isotopes},\n type = {article},\n year = {2013},\n pages = {420-435},\n volume = {49},\n websites = {http://www.tandfonline.com/doi/abs/10.1080/10256016.2013.784702},\n id = {ae6528e9-79a6-39ff-8c45-96a78db78635},\n created = {2018-04-22T22:19:27.944Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:27.944Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Fair, Jeanne M. and Ryder, Thomas B. and Loiselle, Bette a. and Blake, John G. and Larson, Toti E. and Davis, Paul and Syme, James and Perkins, George B. and Heikoop, Jeffrey M.},\n doi = {10.1080/10256016.2013.784702},\n journal = {Isotopes in Environmental and Health Studies},\n number = {3}\n}

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\n \n\n \n \n \n \n \n \n Frugivoria pela rendeira (Manacus manacus, Pipridae) em floresta de restinga, um ecossitema associado à mata Atlântica.\n \n \n \n \n\n\n \n Cestari, C.; and Pizo, M., A.\n\n\n \n\n\n\n Biota Neotropica, 13(2): 345-350. 2013.\n \n\n\n\n
\n\n\n\n \n \n $\"Frugivoria$ Paper\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Frugivoria pela rendeira (Manacus manacus, Pipridae) em floresta de restinga, um ecossitema associado à mata Atlântica},\n type = {article},\n year = {2013},\n keywords = {Animal-plant interaction,Dispersion,Fruits,Seeds},\n pages = {345-350},\n volume = {13},\n id = {1a58a4c6-fbba-323a-bda3-a140d98f8eb6},\n created = {2019-02-18T17:40:43.684Z},\n file_attached = {true},\n profile_id = {d05effc8-927f-32e8-a098-4b34a7465a6a},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T01:19:34.968Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Manakins (Pipridae) are one of the most abundant fruit-eaters and seed dispersers in the understory of neotropical forests. We describe the fruit diet of the White-beaded Manakin (Manacus manacus) based on a two-year study of its foraging behavior on fruiting plants, collecting seeds from feces and regurgitations of trapped individuals, and from lekking males' courts in restinga forests at the southern coast of the state of São Paulo, Brazil. Manacus manacus consumed 58 species of fruits from 30 different plant families. Fruits were taken at 3.5 ± 1.9 m height and 1.5 ± 1.6 m below the forest canopy using mainly sally-strike and glean manoeuvres. Most of the fruits were berries ranging from 3.1 to 17 mm in diameter and containing from 1 to 86 seeds. Fruits up to 12 mm in diameter were swallowed whole. Ripe and unripe fruits were equally consumed. Our results corroborate with the great variety of small fruits consumed by manakin species, and indicate that M. manacus is an important seed disperser, potentially contributing to recruitment of plants in restinga.},\n bibtype = {article},\n author = {Cestari, César and Pizo, Marco Aurélio},\n doi = {10.1590/S1676-06032013000200038},\n journal = {Biota Neotropica},\n number = {2}\n}

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\n \n\n \n \n \n \n \n \n Seed dispersal by the lek-forming white-bearded manakin (Manacus manacus, Pipridae) in the Brazilian Atlantic forest.\n \n \n \n \n\n\n \n Cestari, C.; and Pizo, M., A.\n\n\n \n\n\n\n Journal of Tropical Ecology, 29(5): 381-389. 2013.\n \n\n\n\n
\n\n\n\n \n \n $\"Seed$ Paper\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Seed dispersal by the lek-forming white-bearded manakin (Manacus manacus, Pipridae) in the Brazilian Atlantic forest},\n type = {article},\n year = {2013},\n keywords = {Neotropic,frugivory,movement ecology,radio-telemetry,seed aggregation},\n pages = {381-389},\n volume = {29},\n id = {150726f9-41f7-31d9-86b2-30ff7a7a4c9d},\n created = {2019-02-18T17:47:33.213Z},\n file_attached = {true},\n profile_id = {d05effc8-927f-32e8-a098-4b34a7465a6a},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T01:19:34.856Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The movement patterns of males, females and juveniles of lekking species often differ due to differences in the commitment to lek activities, which may lead to differences in the spatial distribution and dispersal distances of seeds they eat. By sampling seeds in three lek and non-lek areas of the white-bearded manakin (Manacus manacus), we tested whether this lekking species increased the abundance and species richness of seeds in lek areas and, at a finer scale, in 21 displaying courts within lek areas. Combining data on seed defecation or regurgitation rates by free-ranging individuals, the number of seeds in droppings or regurgitations of mist-netted birds, and the distances travelled by birds equipped with radio-transmitters, we estimated the potential spatial distribution of seeds generated by six resident males and six females or juveniles during the morning peak of lek activity and when lek activity decreased in the afternoon. There was no difference in the species richness (46 and 44 morphospecies, respectively) and abundance of seeds (15.4 ± 7.3 seeds and 14.0 ± 1.1 seeds, respectively) between lek and non-lek areas. Within leks both parameters increased in courts (45 spp., 17.6 ± 14 seeds) compared with non-court sites (22 spp., 1.9 ± 1.8 seeds), likely as a consequence of the longer time spent by resident males in perches in or near display courts. Distances moved by juveniles and females per 60-min period (183 ± 272 m) were greater than resident males (42.6 ± 22.0 m) in the mornings, while the opposite happened in the afternoons (55.2 ± 40.7 m and 157 ± 105 m, respectively). We conclude that the spatial aggregation of seeds in lek areas of M. manacus occurs at the court level, and the spatial distribution of deposited seeds varies with manakin lekking status and the daily period of foraging. © Cambridge University Press 2013.},\n bibtype = {article},\n author = {Cestari, César and Pizo, Marco Aurélio},\n doi = {10.1017/S0266467413000412},\n journal = {Journal of Tropical Ecology},\n number = {5}\n}

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\n \n\n \n \n \n \n \n \n Context-dependence in seed removal by lekking and non-lekking frugivorous birds in Brazilian Atlantic forest.\n \n \n \n \n\n\n \n Cestari, C.; and Pizo, M., A.\n\n\n \n\n\n\n Wilson Journal of Ornithology, 125(3): 546-551. 2013.\n \n\n\n\n
\n\n\n\n \n \n $\"Context-dependence$ Paper\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Context-dependence in seed removal by lekking and non-lekking frugivorous birds in Brazilian Atlantic forest},\n type = {article},\n year = {2013},\n keywords = {Animal-plant interaction,Atlantic forest,Courtship,Fruits,Manacus manacus,Pipridae,Seed dispersal},\n pages = {546-551},\n volume = {125},\n id = {bec70746-4be3-3c88-b239-12eb8b07abe8},\n created = {2019-02-18T17:49:40.087Z},\n file_attached = {true},\n profile_id = {d05effc8-927f-32e8-a098-4b34a7465a6a},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T01:19:34.872Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Manakins are prominent fruit-eaters and seed dispersers in the Neotropics. Most manakin species establish lek areas where males devote long periods of time displaying to attract mates, interspersed with brief absences to feed on fruits located near lek areas. We compared the frequency of visits to plants, fruit handling behavior, and number of fruits ingested by the lek-forming Manacus manacus (White-bearded Manakin) and species of non-lekking birds in two species of fruiting trees (Miconia rigidiuscula and Ocotea pulchella) in lek and non-lek areas during the lek and non-lek periods of M. manacus in a threatened Atlantic forest ecosystem. During the non-lek season, M. manacus and non-lekking birds did not differ in the frequency of visits to Miconia trees near lek and non-lek areas. However, M. manacus swallowed a higher number of fruits near leks than non-lekking birds, while the opposite was true in non-lek areas. During the lek season, M. manacus visited Ocotea trees more frequently and swallowed more fruits than non-lekking birds in lek areas. No birds were recorded on Ocotea trees in non-lek areas. This study provides an example of context dependence in the quantity component of seed dispersal effectiveness in which the lek breeding system of a frugivorous species influences the identity of seed removers and the quantity of seeds removed in and around lek areas. © 2013 by the Wilson Ornithological Society.},\n bibtype = {article},\n author = {Cestari, César and Pizo, Marco Aurélio},\n doi = {10.1676/12-184.1},\n journal = {Wilson Journal of Ornithology},\n number = {3}\n}

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\n \n\n \n \n \n \n \n \n Does cooperation increase helpers' later success as breeders? A test of the skills hypothesis in the cooperatively displaying lance-tailed manakin.\n \n \n \n \n\n\n \n DuVal, E., H.\n\n\n \n\n\n\n Journal of Animal Ecology, 82(4): 884-893. 7 2013.\n \n\n\n\n
\n\n\n\n \n \n $\"Does$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Does cooperation increase helpers' later success as breeders? A test of the skills hypothesis in the cooperatively displaying lance-tailed manakin},\n type = {article},\n year = {2013},\n keywords = {Chiroxiphia lanceolata,Cooperative breeding,Courtship display,Learning,Lek,Skills hypothesis},\n pages = {884-893},\n volume = {82},\n websites = {http://doi.wiley.com/10.1111/1365-2656.12057},\n month = {7},\n id = {a9120419-1c1b-3bd6-b60b-b5652e4154d0},\n created = {2019-10-03T13:47:35.430Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-03T13:47:35.430Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Experience improves individual performance in many tasks. Pre-breeding cooperation may provide important experience that improves later success as a breeder, offering one compelling explanation for why some individuals delay reproduction to help others breed (the 'skills hypothesis'). However, confounding effects of age, quality and alternative selective benefits have complicated rigorous tests of this hypothesis. Male lance-tailed manakins perform cooperative courtship displays involving partnerships between unrelated alpha and beta males, and alphas monopolize resulting copulations. Beta males therefore do not receive immediate direct or indirect fitness benefits, but may gain skills during cooperation that increase their later success as an alpha. To date, however, the effect of cooperative experience on later success as a breeder has never been tested in any cooperatively displaying taxon. The effects of prior cooperative experience on reproductive success of alpha lance-tailed manakins were analysed in a mixed model framework using 12 years of information on cooperative experience and annual and lifetime genetic reproductive success for 57 alpha males. Models included previously identified effects of age and alpha tenure. Individual-level random effects controlled for quality differences to test for an independent influence of beta experience on success. Males accumulated up to 5 years of beta experience before becoming alphas, but 42·1% of alphas had no prior beta experience. Betas became alphas later in life, and experienced significantly lower reproductive success in their final year as alpha than males that were never beta, but did not have higher lifetime success or longer alpha tenures. Differences in patterns of annual siring success were best explained by age-dependent patterns of reproductive improvement and senescence among alphas, not beta experience. Cooperative experience does not increase relative breeding success for male lance-tailed manakins. Importantly, beta cooperation seems to be an alternative reproductive tactic that yields fitness payoffs equivalent to a non-cooperative route to alpha status, if population growth rate is stable.},\n bibtype = {article},\n author = {DuVal, Emily H.},\n editor = {Russell, Andy},\n doi = {10.1111/1365-2656.12057},\n journal = {Journal of Animal Ecology},\n number = {4}\n}

\n

\n\n\n

\n Experience improves individual performance in many tasks. Pre-breeding cooperation may provide important experience that improves later success as a breeder, offering one compelling explanation for why some individuals delay reproduction to help others breed (the 'skills hypothesis'). However, confounding effects of age, quality and alternative selective benefits have complicated rigorous tests of this hypothesis. Male lance-tailed manakins perform cooperative courtship displays involving partnerships between unrelated alpha and beta males, and alphas monopolize resulting copulations. Beta males therefore do not receive immediate direct or indirect fitness benefits, but may gain skills during cooperation that increase their later success as an alpha. To date, however, the effect of cooperative experience on later success as a breeder has never been tested in any cooperatively displaying taxon. The effects of prior cooperative experience on reproductive success of alpha lance-tailed manakins were analysed in a mixed model framework using 12 years of information on cooperative experience and annual and lifetime genetic reproductive success for 57 alpha males. Models included previously identified effects of age and alpha tenure. Individual-level random effects controlled for quality differences to test for an independent influence of beta experience on success. Males accumulated up to 5 years of beta experience before becoming alphas, but 42·1% of alphas had no prior beta experience. Betas became alphas later in life, and experienced significantly lower reproductive success in their final year as alpha than males that were never beta, but did not have higher lifetime success or longer alpha tenures. Differences in patterns of annual siring success were best explained by age-dependent patterns of reproductive improvement and senescence among alphas, not beta experience. Cooperative experience does not increase relative breeding success for male lance-tailed manakins. Importantly, beta cooperation seems to be an alternative reproductive tactic that yields fitness payoffs equivalent to a non-cooperative route to alpha status, if population growth rate is stable.\n

\n\n\n

\n \n\n \n \n \n \n \n \n Sexual Selection.\n \n \n \n \n\n\n \n Huneman, P.\n\n\n \n\n\n\n Encyclopedia of Systems Biology, pages 1933-1933. Springer New York, 2013.\n \n\n\n\n
\n\n\n\n \n \n $\"Encyclopedia$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@inbook{\n type = {inbook},\n year = {2013},\n pages = {1933-1933},\n issue = {33},\n websites = {http://link.springer.com/10.1007/978-1-4419-9863-7_887},\n publisher = {Springer New York},\n city = {New York, NY},\n id = {f77b77d9-9cde-3c7a-81d9-a6695179d56c},\n created = {2019-10-13T22:29:59.297Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-13T22:29:59.297Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Competition over mates takes many forms and has far-reaching consequences for many organisms. Recent work suggests that relative reproductive rates of males and females, sperm competition and quality variation among mates affect the strength of sexual selection. Song, other display, body size, visual ornaments and material resource offerings are often sexually selected. There is much empirical evidence of mate choice, and its evolution is clarified by mathematical models. Recent advances in theory also consider costs of choice, effects of deleterious mutations, fast and slow evolution of preferences and preferred traits, and simultaneous preferences for several traits. Contests over mates are important; so is sperm competition, scrambles, endurance rivalry, and coercion. The latter mechanisms have received less attention than mate choice. Sexual selection may explain puzzling aspects of plant pollination biology.},\n bibtype = {inbook},\n author = {Huneman, Philippe},\n doi = {10.1007/978-1-4419-9863-7_887},\n chapter = {Sexual Selection},\n title = {Encyclopedia of Systems Biology}\n}

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\n \n\n \n \n \n \n \n Ecological Niche Modeling in Practice: Flagship Species and Regional Conservation Planning.\n \n \n \n\n\n \n Sohn, N.; Fernandez, M., H.; Papes, M.; and Anciães, M.\n\n\n \n\n\n\n Oecologia Australis, 17(3): 429-440. 2013.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Ecological Niche Modeling in Practice: Flagship Species and Regional Conservation Planning},\n type = {article},\n year = {2013},\n keywords = {amazon,cock-of-the-rock,conservation priority area,garp,maxent},\n pages = {429-440},\n volume = {17},\n id = {a7fe3e86-62e4-37ed-b8b9-f0ed57bb2c10},\n created = {2019-10-15T16:49:33.616Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T16:59:48.579Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Conservation of rare or endemic species is a multifaceted matter, especially whenever knowledge gaps in species’ distribution and anthropogenic pressures converge. We combined Geographic Information Systems and ecological niche modeling tools with field data to characterize the habitat types used for different behavioral activities and to identify important areas for conservation of a charismatic bird endemic to northeast South America, the Guianan cock- of-the-rock (Rupicola rupicola). Using species’ occurrences and climatic, topographic, and remotely sensed vegetation variables we developed potential distribution models at two scales: (1) broad geographic scale (northern South America), based on georeferenced occurrences obtained from literature and natural history museum specimens, and (2) local scale, based on precise occurrences (GPS coordinates) recorded in the field (Caverna do Maroaga Protected Area, Amazonas, Brazil). We identified six priority areas for the conservation of the cock-of-the-rock corresponding to high environmental suitability and lowest anthropogenic pressure, measured as distance from urban areas and highways (>5 km). Protecting the areas identified in this study from anthropogenic threats such as hunting and selective logging will help to preserve not only the cock-of-the-rock, but also the biodiversity of the whole mosaic of habitats in the region. Our results were incorporated in a regional management plan developed by state agencies and non-governmental organizations. Geographic Information Systems and ecological niche modeling techniques combined with on the ground, local surveys can be useful in species conservation efforts, for planning new inventories, prioritizing areas to be protected, and for creating ecological corridors.},\n bibtype = {article},\n author = {Sohn, Natacha and Fernandez, Mario Henrique and Papes, Monica and Anciães, Marina},\n doi = {10.4257/oeco.2013.1703.11},\n journal = {Oecologia Australis},\n number = {3}\n}

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\n \n 2012\n \n \n (11)\n \n \n

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\n \n\n \n \n \n \n \n \n Androgens Regulate Gene Expression in Avian Skeletal Muscles.\n \n \n \n \n\n\n \n Fuxjager, M., J.; Barske, J.; Du, S.; Day, L., B.; and Schlinger, B., A.\n\n\n \n\n\n\n PLoS ONE, 7(12). 2012.\n \n\n\n\n
\n\n\n\n \n \n $\"Androgens$ Paper\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Androgens Regulate Gene Expression in Avian Skeletal Muscles},\n type = {article},\n year = {2012},\n volume = {7},\n id = {f34ab785-d51b-3dc9-8cf6-ddaa7f3d29fb},\n created = {2016-08-23T22:18:01.000Z},\n file_attached = {true},\n profile_id = {d132db1b-8e9a-3336-8a73-fcc7f47f1a66},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.491Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Circulating androgens in adult reproductively active male vertebrates influence a diversity of organ systems and thus are considered costly. Recently, we obtained evidence that androgen receptors (AR) are expressed in several skeletal muscles of three passeriform birds, the golden-collared manakin (Manacus vitellinus), zebra finch (Taenopygia guttata), and ochre-bellied flycatcher (Mionectes oleagieus). Because skeletal muscles that control wing movement make up the bulk of a bird's body mass, evidence for widespread effects of androgen action on these muscles would greatly expand the functional impact of androgens beyond their well-characterized effects on relatively discrete targets throughout the avian body. To investigate this issue, we use quantitative PCR (qPCR) to determine if androgens alter gene mRNA expression patterns in wing musculature of wild golden-collared manakins and captive zebra finches. In manakins, the androgen testosterone (T) up-regulated expression of parvalbumin (PV) and insulin-like growth factor I (IGF-I), two genes whose products enhance cellular Ca2+ cycling and hypertrophy of skeletal muscle fibers. In T-treated zebra finches, the anti-androgen flutamide blunted PV and IGF-I expression. These results suggest that certain transcriptional effects of androgen action via AR are conserved in passerine skeletal muscle tissue. When we examined wing muscles of manakins, zebra finches and ochre-bellied flycatchers, we found that expression of PV and IGF-I varied across species and in a manner consistent with a function for AR-dependent gene regulation. Together, these findings imply that androgens have the potential to act on avian muscle in a way that may enhance the physicality required for successful reproduction. © 2012 Fuxjager et al.},\n bibtype = {article},\n author = {Fuxjager, Matthew J. and Barske, Julia and Du, Sienmi and Day, Lainy B. and Schlinger, Barney A.},\n doi = {10.1371/journal.pone.0051482},\n journal = {PLoS ONE},\n number = {12}\n}

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\n \n\n \n \n \n \n \n \n Proximity data-loggers increase the quantity and quality of social network data.\n \n \n \n \n\n\n \n Ryder, T., B.; Horton, B., M.; Van Den Tillaart, M.; De Dios Morales, J.; and Moore, I., T.\n\n\n \n\n\n\n Biology Letters, 8(6): 917-920. 2012.\n \n\n\n\n
\n\n\n\n \n \n $\"Proximity$ Paper\n \n \n \n $\"Proximity$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Proximity data-loggers increase the quantity and quality of social network data},\n type = {article},\n year = {2012},\n keywords = {Coded nanotag,Proximity data-loggers,Social networks},\n pages = {917-920},\n volume = {8},\n websites = {http://rsbl.royalsocietypublishing.org/content/suppl/2012/07/25/rsbl.2012.0536.DC1.ht,http://rsbl.royalsocietypublishing.org/content/early/2012/07/25/rsbl.2012.0536.full.html},\n id = {562105f6-fa56-3853-b685-b5a26a25070a},\n created = {2016-08-23T22:29:21.000Z},\n file_attached = {true},\n profile_id = {d132db1b-8e9a-3336-8a73-fcc7f47f1a66},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.881Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Social network analysis is an ideal quantitative tool for advancing our understanding of complex social behaviour. However, this approach is often limited by the challenges of accurately characterizing social structure and measuring network heterogeneity. Technological advances have facilitated the study of social networks, but to date, all such work has focused on large vertebrates. Here, we provide proof of concept for using proximity data-logging to quantify the frequency of social interactions, construct weighted networks and characterize variation in the social behaviour of a lek-breeding bird, the wire-tailed manakin, Pipra filicauda. Our results highlight how this approach can ameliorate the challenges of social network data collection and analysis by concurrently improving data quality and quantity. © 2012 The Royal Society.},\n bibtype = {article},\n author = {Ryder, Thomas B and Horton, Brent M and Van Den Tillaart, Mike and De Dios Morales, Juan and Moore, Ignacio T},\n doi = {10.1098/rsbl.2012.0536},\n journal = {Biology Letters},\n number = {6}\n}

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\n \n\n \n \n \n \n \n \n Spinal motor and sensory neurons are androgen targets in an acrobatic bird.\n \n \n \n \n\n\n \n Fuxjager, M., J.; Schultz, J., D.; Barske, J.; Feng, N., Y.; Fusani, L.; Mirzatoni, A.; Day, L., B.; Hau, M.; and Schlinger, B., a.\n\n\n \n\n\n\n Endocrinology, 153(8): 3780-91. 8 2012.\n \n\n\n\n
\n\n\n\n \n \n $\"Spinal$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Spinal motor and sensory neurons are androgen targets in an acrobatic bird.},\n type = {article},\n year = {2012},\n keywords = {Androgens,Androgens: metabolism,Animals,Aromatase,Aromatase: genetics,Aromatase: metabolism,Estrogen Receptor alpha,Estrogen Receptor alpha: genetics,Estrogen Receptor alpha: metabolism,Female,Finches,Male,Muscle, Skeletal,Muscle, Skeletal: metabolism,Passeriformes,Receptors, Androgen,Receptors, Androgen: genetics,Receptors, Androgen: metabolism,Sensory Receptor Cells,Sensory Receptor Cells: metabolism,Sexual Behavior, Animal,Sexual Behavior, Animal: physiology,Spinal Cord,Spinal Cord: metabolism,Testosterone,Testosterone: metabolism},\n pages = {3780-91},\n volume = {153},\n websites = {http://www.ncbi.nlm.nih.gov/pubmed/22635677},\n month = {8},\n id = {95c2b9ad-556f-381c-a97f-7ebf10f9cc54},\n created = {2018-04-22T22:19:23.541Z},\n accessed = {2014-12-07},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:23.541Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Sex steroids affect the motivation to court mates, but less is known about how they influence motor movements associated with courtship behavior. Steroidal control of motor function may be especially important for species in which courtship requires superior strength, stamina, and neuromuscular coordination. Here we use the golden-collared manakin (Manacus vitellinus) to examine whether the neuromuscular circuitry that controls motoric aspects of courtship activity is sensitive to androgens. Males of this tropical species attract mates by rapidly jumping among branches in a courtship arena and using their wings to produce loud wing snaps. Testosterone activates this display via the androgen receptor (AR), and past work reveals that manakins injected with radio-labeled T ((3)H-T) accumulate radioactivity in the spinal cord. Thus, we used quantitative PCR to measure AR, estrogen receptor-α (ER-α) subtype, and aromatase (AROM) mRNA in spinal cords of male and female manakins and zebra finches. Expression of AR, but not ER-α or aromatase, was higher throughout the manakin spinal cord compared with the zebra finch. Next, we tested whether AR-expressing skeletal muscles are innervated by motor and sensory neurons that also express AR. To do this, we backfilled spinal neurons by injecting fluorescent tracers into select AR-sensitive wing and leg muscles of wild caught male and female manakins. We then removed these spinal cords and measured AR expression with in situ hybridization. Both sexes showed abundant AR mRNA in the cervical and lumbosacral spinal enlargements as well as in dorsal root ganglia attached to these enlargements. Together our findings suggest that androgens act widely on peripheral motor and sensory circuits in golden-collared manakins to influence wing snapping displays.},\n bibtype = {article},\n author = {Fuxjager, Matthew J and Schultz, J Douglas and Barske, Julia and Feng, Ni Y and Fusani, Leonida and Mirzatoni, Anahid and Day, Lainy B and Hau, Michaela and Schlinger, Barney a},\n doi = {10.1210/en.2012-1313},\n journal = {Endocrinology},\n number = {8}\n}

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\n \n\n \n \n \n \n \n \n Proximate and ultimate causes of male courtship behavior in Golden-collared Manakins.\n \n \n \n \n\n\n \n Fusani, L.; and Schlinger, B., a.\n\n\n \n\n\n\n Journal of Ornithology, 153(S1): 119-124. 1 2012.\n \n\n\n\n
\n\n\n\n \n \n $\"Proximate$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Proximate and ultimate causes of male courtship behavior in Golden-collared Manakins},\n type = {article},\n year = {2012},\n keywords = {courtship á display á,motor skills á androgen,sexual selection á,á testosterone},\n pages = {119-124},\n volume = {153},\n websites = {http://link.springer.com/10.1007/s10336-011-0809-8},\n month = {1},\n day = {12},\n id = {03b7ac36-c153-3886-9853-dc5619abbf25},\n created = {2018-04-22T22:19:24.477Z},\n accessed = {2014-05-07},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:24.477Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Fusani, Leonida and Schlinger, Barney a.},\n doi = {10.1007/s10336-011-0809-8},\n journal = {Journal of Ornithology},\n number = {S1}\n}

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\n \n\n \n \n \n \n \n \n Proximity data-loggers increase the quantity and quality of social network data.\n \n \n \n \n\n\n \n Ryder, T., B.; Horton, B., M.; van den Tillaart, M.; Morales, J., D., D.; and Moore, I., T.\n\n\n \n\n\n\n Biology letters, 8(6): 917-20. 12 2012.\n \n\n\n\n
\n\n\n\n \n \n $\"Proximity$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Proximity data-loggers increase the quantity and quality of social network data.},\n type = {article},\n year = {2012},\n keywords = {Animals,Data Collection,Data Collection: methods,Ecuador,Nanotechnology,Passeriformes,Passeriformes: physiology,Social Behavior,Spatial Behavior,Spatial Behavior: physiology},\n pages = {917-20},\n volume = {8},\n websites = {http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=3497117&tool=pmcentrez&rendertype=abstract},\n month = {12},\n day = {23},\n id = {518f9aee-8d30-3d37-99ad-aee92a5d55d1},\n created = {2018-04-22T22:19:24.738Z},\n accessed = {2014-07-31},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:24.738Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Social network analysis is an ideal quantitative tool for advancing our understanding of complex social behaviour. However, this approach is often limited by the challenges of accurately characterizing social structure and measuring network heterogeneity. Technological advances have facilitated the study of social networks, but to date, all such work has focused on large vertebrates. Here, we provide proof of concept for using proximity data-logging to quantify the frequency of social interactions, construct weighted networks and characterize variation in the social behaviour of a lek-breeding bird, the wire-tailed manakin, Pipra filicauda. Our results highlight how this approach can ameliorate the challenges of social network data collection and analysis by concurrently improving data quality and quantity.},\n bibtype = {article},\n author = {Ryder, Thomas B and Horton, Brent M and van den Tillaart, Mike and Morales, Juan De Dios and Moore, Ignacio T},\n doi = {10.1098/rsbl.2012.0536},\n journal = {Biology letters},\n number = {6}\n}

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\n \n\n \n \n \n \n \n Male Golden-collared Manakins Manacus vitellinus do not adapt their courtship display to spatial alteration of their court.\n \n \n \n\n\n \n Coccon, F.; Schlinger, B., a.; and Fusani, L.\n\n\n \n\n\n\n Ibis, 154(1): 173-176. 2012.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Male Golden-collared Manakins Manacus vitellinus do not adapt their courtship display to spatial alteration of their court},\n type = {article},\n year = {2012},\n keywords = {Arena,Breeding season,Choreography,Courtship,Display},\n pages = {173-176},\n volume = {154},\n id = {bc45a899-0114-3d56-83d8-1a41390c4ef4},\n created = {2018-04-22T22:19:25.773Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:25.773Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {CCLARK-LIB e courtship displays },\n bibtype = {article},\n author = {Coccon, Francesca and Schlinger, Barney a. and Fusani, Leonida},\n doi = {10.1111/j.1474-919X.2011.01178.x},\n journal = {Ibis},\n number = {1}\n}

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\n \n\n \n \n \n \n \n Variation in annual and lifetime reproductive success of lance-tailed manakins: alpha experience mitigates effects of senescence on siring success.\n \n \n \n\n\n \n DuVal, E., H.\n\n\n \n\n\n\n Proceedings of the Royal Society B: Biological Sciences, 279(1733): 1551-1559. 2012.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Variation in annual and lifetime reproductive success of lance-tailed manakins: alpha experience mitigates effects of senescence on siring success},\n type = {article},\n year = {2012},\n keywords = {chiroxiphia,cooperative breeding,longevity,reproductive tenure,senescence,sexual selection},\n pages = {1551-1559},\n volume = {279},\n id = {98247e34-0156-3ed4-a62e-e8671280405f},\n created = {2018-04-22T22:19:26.863Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:26.863Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The causes of variation in individual reproductive success over a lifetime are not well understood. In long-lived vertebrates, reproductive output usually increases during early adulthood, but it is difficult to disentangle the roles of development and learning on this gain of reproductive success. Lekking lance-tailed manakins provide an opportunity to separate these processes, as the vast majority of male reproduction occurs after a bird obtains alpha status and maintains a display area in the lek, but the age at which males achieve alpha status varies widely. Using 11 years of longitudinal data on age, social status and genetic siring success, I assessed the factors influencing variation in siring success by individuals over their lifetimes. The data show increases in annual reproductive success with both age and alpha experience. At advanced ages, these gains were offset by senescence in fecundity. Individual ontogeny, rather than compositional change of the population, generated a nonlinear relationship of breeding tenure with lifetime success; age of assuming alpha status was unrelated to tenure as a breeder, or success in the alpha role. Importantly, these findings suggest that social experience can mitigate the negative effects of senescence in older breeders.},\n bibtype = {article},\n author = {DuVal, E. H.},\n doi = {10.1098/rspb.2011.1840},\n journal = {Proceedings of the Royal Society B: Biological Sciences},\n number = {1733}\n}

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\n \n\n \n \n \n \n \n \n The use of auxiliary courts by the lek-forming White-bearded Manakin Manacus manacus (Aves, Pipridae).\n \n \n \n \n\n\n \n Cestari, C.; and Pizo, M., A.\n\n\n \n\n\n\n Acta Ethologica, 15(1): 73-79. 2012.\n \n\n\n\n
\n\n\n\n \n \n $\"The$ Paper\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {The use of auxiliary courts by the lek-forming White-bearded Manakin Manacus manacus (Aves, Pipridae)},\n type = {article},\n year = {2012},\n keywords = {Atlantic Forest,Brazil,Courtship behavior,Sexual competition},\n pages = {73-79},\n volume = {15},\n id = {9484a7ee-cba1-39af-9b63-4c8751750034},\n created = {2019-02-18T17:38:00.895Z},\n file_attached = {true},\n profile_id = {d05effc8-927f-32e8-a098-4b34a7465a6a},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T01:19:34.972Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {The White-bearded Manakin is a passerine specially noted for elaborate courtship. Each resident male has a cleaned oval court delimited by saplings in leks. No study mentions the use of more than one court by a territorial male during the breeding season. We report the use of auxiliary courts by males in the lowland forest of southeastern Brazil and discuss its probable function in attracting females for mating. Additionally, we experimentally modified a male's main courts, testing that auxiliary courts serve as alternative display places. Twelve males from four different leks were observed for 145 h. Six males used from one to four auxiliary courts located 1.0 to 8.1 m from their main courts. The males that also used auxiliary courts displayed more than males that used only the main court. Nevertheless, the proportion of female visits per display time indicates that males that used only the main court have greater efficiency in attracting potential mates. Individual males responded differently to the experimental modification of their main courts, but one male avoided the modified court. The use of auxiliary courts may be a strategy adopted mainly by peripheral males to attract females that visit more successful males with central territories on the lek. In the short term, auxiliary courts function as optional display places in cases of loss of the main court. In the long term, the use of auxiliary courts may be involved in the temporal persistence of lek areas. © 2011 Springer-Verlag and ISPA.},\n bibtype = {article},\n author = {Cestari, César and Pizo, Marco Aurélio},\n doi = {10.1007/s10211-011-0110-0},\n journal = {Acta Ethologica},\n number = {1}\n}

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\n \n\n \n \n \n \n \n \n Lek phenology of the White-bearded Manakin (Manacus manacus, Aves: Passeriformes: Pipridae) in a subtropical region.\n \n \n \n \n\n\n \n Cestari, C.; and Pizo, M., A.\n\n\n \n\n\n\n Journal of Natural History, 46(47-48): 2999-3009. 2012.\n \n\n\n\n
\n\n\n\n \n \n $\"Lek$ Paper\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Lek phenology of the White-bearded Manakin (Manacus manacus, Aves: Passeriformes: Pipridae) in a subtropical region},\n type = {article},\n year = {2012},\n keywords = {behaviour,day length,manakins,sexual selection,southeastern Brazil,temporal analysis},\n pages = {2999-3009},\n volume = {46},\n id = {124f3764-29c4-3ce7-81bf-49b4a508b276},\n created = {2019-02-18T17:48:07.240Z},\n file_attached = {true},\n profile_id = {d05effc8-927f-32e8-a098-4b34a7465a6a},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-01-07T15:30:27.229Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Descriptions of lek-breeding in White-bearded Manakins (Manacus manacus) first appeared 55 years ago from studies conducted in tropical Trinidad. No published studies on lek activity, however, exist from subtropical areas of the Neotropics. Herein, annual lek phenology of M. manacus in a subtropical region was analysed and compared with studies conducted in Trinidad. Day-long observations were conducted in nine male territories from three leks. Permanence of lekking males in their territories was positively correlated with day length. When males are more active in the subtropical region, males from Trinidad are less active and vice versa. Additional new information about this manakin's lek activity was disclosed: residents stayed in their courts for up to 7% of the day length, the frequency and duration of display bouts of residents varied throughout the year whereas those of juveniles did not, and females made more visits to courts of residents who displayed for longer bouts. © 2012 Copyright Taylor and Francis Group, LLC.},\n bibtype = {article},\n author = {Cestari, César and Pizo, Marco Aurelio},\n doi = {10.1080/00222933.2012.727485},\n journal = {Journal of Natural History},\n number = {47-48}\n}

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\n \n\n \n \n \n \n \n Uso de florestas secundárias por aves de sub-bosque em uma paisagem fragmentada na Amazônia central.\n \n \n \n\n\n \n Silva, J., V., C., e.; Conceição, B., S., d.; and Anciães, M.\n\n\n \n\n\n\n Acta Amazonica, 42(1): 73-80. 2012.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Uso de florestas secundárias por aves de sub-bosque em uma paisagem fragmentada na Amazônia central},\n type = {article},\n year = {2012},\n keywords = {apparent survive,avian conservation,secondary forest},\n pages = {73-80},\n volume = {42},\n id = {31785d7b-66da-3a31-a740-dee6b6f78630},\n created = {2019-10-15T16:49:32.847Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T16:59:48.552Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Na Amazônia, as taxas de desmatamento crescem desde 1991 e as previsões não são otimistas quanto à desaceleração desse processo. A devastação da floresta é acompanhada de uma expansão de florestas secundárias (FS) que se estabelecem nas áreas abandonadas. A tendência é um aumento de florestas secundárias, resultando num mosaico de floresta contínua e fragmentos separados por uma matriz de FS. Nesse cenário, autores acreditam que a Amazônia pode passar por um processo massivo de extinção de espécies. Por outro lado, a previsão de um processo massivo de extinção pode ser equivocada, pois muitas espécies florestais poderiam sobreviver nas florestas secundárias. Para avaliar o valor das florestas secundárias para espécies florestais amostramos por oito meses com redes de neblina uma capoeira (FS) em regeneração e uma floresta primária (FP) de uma paisagem fragmentada. Algumas espécies não foram capturadas na capoeira e aparentemente evitam esse tipo de hábitat. No entanto, a maioria das espécies do grupo focal não apresentou diferença na sobrevivência aparente entre os ambientes, o que nos indica que estão habitando a capoeira e a floresta primária da mesma forma. Na realidade amazônica, onde grande parte da matriz é composta por floresta secundária, a matriz tem valor para conservação e deve ser analisada como um elemento dinâmico que não apenas permite a movimentação de indivíduos, mas também serve de hábitat para muitas espécies de floresta primária. Mas ressaltamos que é fundamental a preservação de áreas de floresta primária que servirão de fonte às florestas secundárias adjacentes.Rates of deforestation in the Brazilian Amazon have increased since 1991 and forecasts are not optimistic about the slowing of this process. Some authors believe that the Amazon may be experiencing a massive process of species extinction. However, the deforestation is accompanied by the expansion of secondary forests that are established in the abandoned areas. The trend is an increase in secondary forests cover, resulting in a mosaic of primary forest (FP) and fragments separated by an array of secondary forests (FS). In this scenario, the prediction of a massive extinction could be wrong if many species could survive in the secondary forests. To assess the importance of FS for the understory birds we sampled areas in regeneration and a continuous forest of a fragmented landscape. We conducted mist netting (24 nets/day) for six consecutive days/month, for 8 months (May-November) in 2009. Some forest species as do not seem to be adapted to the secondary forest environment and their occurrences are restricted to continuous forest environments. But most focal species showed no significant difference in apparent survival rates between the enviroments, suggesting that these species inhabit the secondary forest and the primary forest similarly. Because most of the matrix in fragmented landscapes are composed by secondary forests, such results highlights the conservation value that these habitats present in the long term. Thus, FS should be regarded as dynamic matrix that not only allows the movement of individuals but also function as habitat for many species typical of FP.},\n bibtype = {article},\n author = {Silva, João Vitor Campos e and Conceição, Beatriz Souza da and Anciães, Marina},\n doi = {10.1590/s0044-59672012000100009},\n journal = {Acta Amazonica},\n number = {1}\n}

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\n Na Amazônia, as taxas de desmatamento crescem desde 1991 e as previsões não são otimistas quanto à desaceleração desse processo. A devastação da floresta é acompanhada de uma expansão de florestas secundárias (FS) que se estabelecem nas áreas abandonadas. A tendência é um aumento de florestas secundárias, resultando num mosaico de floresta contínua e fragmentos separados por uma matriz de FS. Nesse cenário, autores acreditam que a Amazônia pode passar por um processo massivo de extinção de espécies. Por outro lado, a previsão de um processo massivo de extinção pode ser equivocada, pois muitas espécies florestais poderiam sobreviver nas florestas secundárias. Para avaliar o valor das florestas secundárias para espécies florestais amostramos por oito meses com redes de neblina uma capoeira (FS) em regeneração e uma floresta primária (FP) de uma paisagem fragmentada. Algumas espécies não foram capturadas na capoeira e aparentemente evitam esse tipo de hábitat. No entanto, a maioria das espécies do grupo focal não apresentou diferença na sobrevivência aparente entre os ambientes, o que nos indica que estão habitando a capoeira e a floresta primária da mesma forma. Na realidade amazônica, onde grande parte da matriz é composta por floresta secundária, a matriz tem valor para conservação e deve ser analisada como um elemento dinâmico que não apenas permite a movimentação de indivíduos, mas também serve de hábitat para muitas espécies de floresta primária. Mas ressaltamos que é fundamental a preservação de áreas de floresta primária que servirão de fonte às florestas secundárias adjacentes.Rates of deforestation in the Brazilian Amazon have increased since 1991 and forecasts are not optimistic about the slowing of this process. Some authors believe that the Amazon may be experiencing a massive process of species extinction. However, the deforestation is accompanied by the expansion of secondary forests that are established in the abandoned areas. The trend is an increase in secondary forests cover, resulting in a mosaic of primary forest (FP) and fragments separated by an array of secondary forests (FS). In this scenario, the prediction of a massive extinction could be wrong if many species could survive in the secondary forests. To assess the importance of FS for the understory birds we sampled areas in regeneration and a continuous forest of a fragmented landscape. We conducted mist netting (24 nets/day) for six consecutive days/month, for 8 months (May-November) in 2009. Some forest species as do not seem to be adapted to the secondary forest environment and their occurrences are restricted to continuous forest environments. But most focal species showed no significant difference in apparent survival rates between the enviroments, suggesting that these species inhabit the secondary forest and the primary forest similarly. Because most of the matrix in fragmented landscapes are composed by secondary forests, such results highlights the conservation value that these habitats present in the long term. Thus, FS should be regarded as dynamic matrix that not only allows the movement of individuals but also function as habitat for many species typical of FP.\n

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\n \n\n \n \n \n \n \n Rhodoxanthin as a characteristic keto-carotenoid of manakins (Pipridae).\n \n \n \n\n\n \n Hudon, J.; Storni, A.; Pini, E.; Anciaes, M.; and Straddi, R.\n\n\n \n\n\n\n The Auk, 129(3): 491-499. 2012.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Rhodoxanthin as a characteristic keto-carotenoid of manakins (Pipridae)},\n type = {article},\n year = {2012},\n keywords = {-ones,3,a rodoxantina como um,brilhante ao vermelho,canary-xanthophyll b,carotenoid pigmentation,cetocarotenoide típico de tangarás,de 15,e pelo dicromatismo,nós extraímos e identificamos,os pigmentos carotenoides das,penas,pipridae,plumage,que vão do amarelo,red cotingas,rituais de côrte elaborados,résumé,sexual acentuado,sexual selection,suboscíneos famosos pelos seus,tangarás são pequenos passeriformes,ε,ε-caroten-3},\n pages = {491-499},\n volume = {129},\n id = {d1784a7f-11ec-391a-9061-88b0a10d525c},\n created = {2019-10-15T16:49:33.633Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T17:59:12.199Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {... Rhodoxanthin as a Characteristic Keto-Carotenoid of Manakins (Pipridae). A rodoxantina como um cetocarotenoide típico de tangarás (Pipridae). Jocelyn Hudon, 1, 4 Alline Storni, 2, 5 Elena Pini, 2 Marina Anciães, 3 and Riccardo Stradi 2. ... \\n},\n bibtype = {article},\n author = {Hudon, J. and Storni, A. and Pini, E. and Anciaes, M. and Straddi, R.},\n doi = {10.1525/auk.2012.11235},\n journal = {The Auk},\n number = {3}\n}

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\n \n 2011\n \n \n (10)\n \n \n

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\n \n\n \n \n \n \n \n \n Hormonal correlates of social status and courtship display in the cooperatively lekking lance-tailed manakin.\n \n \n \n \n\n\n \n DuVal, E., H.; and Goymann, W.\n\n\n \n\n\n\n Hormones and Behavior, 59(1): 44-50. 2011.\n \n\n\n\n
\n\n\n\n \n \n $\"Hormonal$ Paper\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Hormonal correlates of social status and courtship display in the cooperatively lekking lance-tailed manakin},\n type = {article},\n year = {2011},\n keywords = {Androgen,Chiroxiphia lanceolata,Cooperation,Courtship,Lek,Manakin,Testosterone},\n pages = {44-50},\n volume = {59},\n id = {7b568a68-78e0-3970-8710-1f1f3d86391a},\n created = {2016-08-23T22:18:33.000Z},\n file_attached = {true},\n profile_id = {d132db1b-8e9a-3336-8a73-fcc7f47f1a66},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.500Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Though cooperative behavior has long been a focus of evolutionary biology, the proximate hormonal mechanisms underlying cooperative interactions remain poorly understood. Lance-tailed manakins (Chiroxiphia lanceolata) are tropical passerines that form long-term male-male partnerships and cooperate in paired male courtship displays. To elucidate patterns of natural hormonal variation in relation to cooperation and reproductive behavior, we examined circulating androgen levels of male lance-tailed manakins in relation to social status, display behavior, and time of year. We found significantly higher circulating androgen levels in alpha-ranked (breeding) males compared to non-alpha adult males in the population. Beta males, which participated in courtship displays but did not copulate, had androgen levels indistinguishable from those of unpaired adult males that never displayed for females, suggesting that an elevated concentration of plasma testosterone in tropical lekking birds may be associated primarily with copulatory behavior or other status-specific traits, and not the performance of courtship display. Androgens decreased throughout the breeding season for males of all status categories. Interestingly, alphas that displayed for females in the observation session prior to sampling had lower androgen levels than alphas that did not display for females. This pattern may result from female discrimination against alpha males at display areas with high levels of social conflict among males, as social disruption is linked to elevated testosterone in many species. However, recent change of a display partner was not related to alpha androgen levels. We discuss alternative explanations and the possible implications of these results, and generate several testable predictions for future investigations. © 2010 Elsevier Inc.},\n bibtype = {article},\n author = {DuVal, Emily H. and Goymann, Wolfgang},\n doi = {10.1016/j.yhbeh.2010.10.004},\n journal = {Hormones and Behavior},\n number = {1}\n}

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\n \n\n \n \n \n \n \n \n Sexually dimorphic neural phenotypes in golden-collared manakins (manacus vitellinus).\n \n \n \n \n\n\n \n Day, L., B.; Fusani, L.; Kim, C.; and Schlinger, B., A.\n\n\n \n\n\n\n Brain, Behavior and Evolution, 77(3): 206-218. 2011.\n \n\n\n\n
\n\n\n\n \n \n $\"Sexually$ Paper\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Sexually dimorphic neural phenotypes in golden-collared manakins (manacus vitellinus)},\n type = {article},\n year = {2011},\n keywords = {Arcopallium,Cerebellum,Entopallium,Hippocampus,Manacus vitellinus,Manakin,Sex differences,Ventrolateral mesopallium},\n pages = {206-218},\n volume = {77},\n id = {0d6886ee-3c51-357e-a698-554dfe75b2e1},\n created = {2016-08-23T22:18:59.000Z},\n file_attached = {true},\n profile_id = {d132db1b-8e9a-3336-8a73-fcc7f47f1a66},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:25.115Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Male golden-collared manakins (Manacus vitellinus) perform a high-speed acrobatic courtship display punctuated by loud 'snaps' produced by the wings. Females join males on display courts to select individuals for copulation; females follow displaying males but do not perform acrobatics or make wing snaps. Sexually dimorphic courtship displays such as those performed by manakins are the result of intense sexual selection and suggest that differences between sexes exist at neural levels as well. We examined sex differences in the volume of brain areas that might be involved in the male manakin courtship display and in the female assessment of this display. We found that males had a larger hippocampus (HP, spatial learning) and arcopallium (AP, motor and limbic areas) than females when adjusted for the size of the telencephalon (TELE) minus the target area. Females had a larger ventrolateral mesopallium (MVL) both when adjusting for the size of the remaining TELE and by direct comparison. The entopallium (E) was not sexually dimorphic. The E is part of the avian tectofugal pathway and the MVL is linked to this pathway by reciprocal connections. The MVL likely modulates visually guided behavior via descending brainstem pathways. We found no sex differences in the volume of the cerebellum or cerebellar nuclei. We speculate that the HP is important to males for cross-season site fidelity and for local spatial memory, the AP for sexually driven motor patterns that are complex in males, and that the MVL facilitates female visual processing in selecting male display traits. These results are consistent with the idea that sexual selection has acted to select sex-specific behaviors in manakins that have neural correlates in the brain. © 2011 S. Karger AG, Basel.},\n bibtype = {article},\n author = {Day, Lainy B. and Fusani, Leonida and Kim, Carol and Schlinger, Barney A.},\n doi = {10.1159/000327046},\n journal = {Brain, Behavior and Evolution},\n number = {3}\n}

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\n \n\n \n \n \n \n \n Vocalization activity at leks of six manakin (Pipridae) species in Eastern Ecuador.\n \n \n \n\n\n \n Durães, R.; Blake, J., G.; Loiselle, B., A.; Ryder, T., B.; Tori, W., P.; and Hidalgo, J., R.\n\n\n \n\n\n\n Ornitologia Neotropical, 22(3): 437-445. 2011.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Vocalization activity at leks of six manakin (Pipridae) species in Eastern Ecuador},\n type = {article},\n year = {2011},\n keywords = {Ecuador,Lek,Manakin,Pipridae,Vocalization,Vocalization rate},\n pages = {437-445},\n volume = {22},\n id = {29859fbf-6c3c-34b8-8d9d-590ba1b20c95},\n created = {2016-10-25T13:36:13.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.224Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Most manakins (Pipridae) are lek-breeding species in which males engage in courtship displays directed toward females. Yet, the structure of leks and the complexity of the displays vary widely across species. Differences in male clustering and display attributes are expected to influence inter-specific patterns of lek activity. Here, we investigate how lek structure and display complexity affect vocalization activity at leks of six manakin species that co-occur in eastern Ecuador (Chiroxiphia pareóla, Lepidothrix coronata, Machaeropterus regulus, Pipra erythrocephala, P. filicauda, and P. pipra). Our results showed that, first, daily patterns of lek activity within species were consistent spatially (among leks) and temporally (across the breeding season), allowing for meaningful inter-specific comparisons. Second, that both lek structure (male spacing) and display complexity were predictors of vocal activity at leks but specific components of the vocalization output (e.g., output per male or per lek, temporal fluctuations in output levels) varied among species. This study adds to our understanding of how social structure and male-male social facilitation influence activity at leks. © The Neotropical Ornithological Society.},\n bibtype = {article},\n author = {Durães, Renata and Blake, John G. and Loiselle, Bette A. and Ryder, Thomas B. and Tori, Wendy P. and Hidalgo, José R.},\n journal = {Ornitologia Neotropical},\n number = {3}\n}

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\n \n\n \n \n \n \n \n \n Cotingas and Manakins.\n \n \n \n \n\n\n \n Kirwan, G., M.; and Green, G.\n\n\n \n\n\n\n Princeton University Press, 2011.\n \n\n\n\n
\n\n\n\n \n \n $\"Cotingas$ Website\n \n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@book{\n title = {Cotingas and Manakins},\n type = {book},\n year = {2011},\n websites = {https://books.google.com/books?id=58YWywAACAAJ},\n publisher = {Princeton University Press},\n city = {Princeton, N.J.},\n id = {06dc6bbb-970f-3d9f-ad11-c97140c7b7a0},\n created = {2018-04-22T22:19:22.268Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:22.268Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n source_type = {BOOK},\n private_publication = {false},\n bibtype = {book},\n author = {Kirwan, G M and Green, G}\n}

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\n \n\n \n \n \n \n \n \n Female choice for male motor skills.\n \n \n \n \n\n\n \n Barske, J.; Schlinger, B., a.; Wikelski, M.; and Fusani, L.\n\n\n \n\n\n\n Proceedings. Biological sciences / The Royal Society, 278(1724): 3523-8. 12 2011.\n \n\n\n\n
\n\n\n\n \n \n $\"Female$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Female choice for male motor skills.},\n type = {article},\n year = {2011},\n keywords = {Animals,Courtship,Female,Heart Rate,Male,Mating Preference, Animal,Motor Skills,Panama,Passeriformes,Passeriformes: physiology,Telemetry,Telemetry: veterinary,Video Recording},\n pages = {3523-8},\n volume = {278},\n websites = {http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=3189371&tool=pmcentrez&rendertype=abstract},\n month = {12},\n day = {7},\n id = {54f4f5b1-7470-3ef6-86f0-0566e7c2ccb4},\n created = {2018-04-22T22:19:24.739Z},\n accessed = {2014-10-15},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:24.739Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Sexual selection was proposed by Darwin to explain the evolution of male sexual traits such as ornaments and elaborate courtship displays. Empirical and theoretical studies have traditionally focused on ornaments; the reasons for the evolution of elaborate, acrobatic courtship displays remain unclear. We addressed the hypothesis that females choose males on the basis of subtle differences in display performance, indicating motor skills that facilitate survival. Male golden-collared manakins (Manacus vitellinus) perform elaborate, acrobatic courtship displays. We used high-speed cameras to record the displays of wild males and analysed them in relation to male reproductive success. Females preferred males that performed specific display moves at greater speed, with differences of tens of milliseconds strongly impacting female preference. In additional males, we recorded telemetrically the heart rate during courtship using miniature transmitters and found that courtship is associated with profoundly elevated heart rates, revealing a large metabolic investment. Our study provides evidence that females choose their mates on the basis of subtle differences in motor performance during courtship. We propose that elaborate, acrobatic courtship dances evolve because they reflect motor skills and cardiovascular function of males.},\n bibtype = {article},\n author = {Barske, Julia and Schlinger, Barney a and Wikelski, Martin and Fusani, Leonida},\n doi = {10.1098/rspb.2011.0382},\n journal = {Proceedings. Biological sciences / The Royal Society},\n number = {1724}\n}

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\n \n\n \n \n \n \n \n \n The composition, stability, and kinship of reproductive coalitions in a lekking bird.\n \n \n \n \n\n\n \n Ryder, T., B.; Blake, J., G.; Parker, P., G.; and Loiselle, B., a.\n\n\n \n\n\n\n Behavioral Ecology, 22(2): 282-290. 1 2011.\n \n\n\n\n
\n\n\n\n \n \n $\"The$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {The composition, stability, and kinship of reproductive coalitions in a lekking bird},\n type = {article},\n year = {2011},\n pages = {282-290},\n volume = {22},\n websites = {http://www.beheco.oxfordjournals.org/cgi/doi/10.1093/beheco/arq213},\n month = {1},\n day = {18},\n id = {e4d63d60-4311-379f-821d-311fc6dc0811},\n created = {2018-04-22T22:19:25.496Z},\n accessed = {2014-07-31},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:25.496Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Ryder, T. B. and Blake, J. G. and Parker, P. G. and Loiselle, B. a.},\n doi = {10.1093/beheco/arq213},\n journal = {Behavioral Ecology},\n number = {2}\n}

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\n \n\n \n \n \n \n \n \n Understanding testosterone variation in a tropical lek-breeding bird.\n \n \n \n \n\n\n \n Ryder, T., B.; Horton, B., M.; and Moore, I., T.\n\n\n \n\n\n\n Biology Letters, 7(4): 506-509. 2 2011.\n \n\n\n\n
\n\n\n\n \n \n $\"Understanding$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Understanding testosterone variation in a tropical lek-breeding bird},\n type = {article},\n year = {2011},\n keywords = {competition,cooperation,lekking,reproductive coalitions,testosterone,wire-tailed},\n pages = {506-509},\n volume = {7},\n websites = {http://rsbl.royalsocietypublishing.org/content/early/2011/02/08/rsbl.2010.1219.abstract},\n month = {2},\n day = {16},\n id = {f1fc1fdc-cd68-36a7-8abe-af6178299df5},\n created = {2018-04-22T22:19:25.737Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:25.737Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n source_type = {JOUR},\n notes = {<b>From Duplicate 2 ( </b><br/><b><br/><i>Understanding testosterone variation in a tropical lek-breeding bird</i><br/></b><br/><b>- Ryder, Thomas B; Horton, Brent M; Moore, Ignacio T )<br/><br/></b><br/><br/>10.1098/rsbl.2010.1219},\n private_publication = {false},\n abstract = {Male reproductive coalitions, in which males cooperate to attract females, are a rare strategy among vertebrates. While some studies have investigated ultimate aspects of these relationships, little is known about the mechanistic role that hormones play in modulating cooperative behaviours. Here, we examined male testosterone variation in a tropical lekking bird, the wire-tailed manakin (Pipra filicauda), which exhibits cooperative male–male display coalitions. We found that testosterone levels in territorial males were comparable to those of temperate breeding birds, a surprising result given their environmental, social and reproductive dynamics. In addition, social status rather than plumage was a strong predictor of testosterone variation. Territorial males had significantly higher testosterone levels than did two other plumage classes of floater males, who do not hold territories. We hypothesize that testosterone variation plays an important role in the establishment of male dominance hierarchies (competition), while concurrently facilitating stable display partnerships (cooperation).},\n bibtype = {article},\n author = {Ryder, Thomas B and Horton, Brent M and Moore, Ignacio T},\n doi = {10.1098/rsbl.2010.1219},\n journal = {Biology Letters},\n number = {4}\n}

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\n \n\n \n \n \n \n \n \n Kin Selection and Cooperative Courtship in Birds.\n \n \n \n \n\n\n \n Krakauer, A., H.; and DuVal, E., H.\n\n\n \n\n\n\n Oxford University Press, 5 2011.\n \n\n\n\n
\n\n\n\n \n \n $\"Kin$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@book{\n title = {Kin Selection and Cooperative Courtship in Birds},\n type = {book},\n year = {2011},\n source = {The Oxford Handbook of Evolutionary Family Psychology},\n keywords = {Cooperation,Cooperative breeding,Kin selection,Lek,Manakin,Meleagris gallopavo,Microsatellite,Nepotism,Queuing,Social network},\n pages = {1-21},\n issue = {July},\n websites = {http://oxfordhandbooks.com/view/10.1093/oxfordhb/9780195396690.001.0001/oxfordhb-9780195396690-e-014},\n month = {5},\n publisher = {Oxford University Press},\n day = {27},\n id = {f153dfb4-9455-308b-bd63-d526817d3ee9},\n created = {2019-01-30T15:34:06.964Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-01-30T15:34:06.964Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {book},\n author = {Krakauer, Alan H. and DuVal, Emily H.},\n doi = {10.1093/oxfordhb/9780195396690.013.0014}\n}

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\n \n\n \n \n \n \n \n \n Lekking birds in a tropical forest forego sex for migration.\n \n \n \n \n\n\n \n Boyle, W., A.; Guglielmo, C., G.; Hobson, K., A.; and Norris, D., R.\n\n\n \n\n\n\n Biology Letters, 7(5): 661-663. 10 2011.\n \n\n\n\n
\n\n\n\n \n \n $\"Lekking$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Lekking birds in a tropical forest forego sex for migration},\n type = {article},\n year = {2011},\n keywords = {carry-over effects,evolution of migration,life-history trade-offs},\n pages = {661-663},\n volume = {7},\n websites = {http://rsbl.royalsocietypublishing.org/cgi/doi/10.1098/rsbl.2011.0115},\n month = {10},\n day = {23},\n id = {2017f3a3-b8e1-35a5-8ab1-0377206922ab},\n created = {2019-03-13T14:19:06.350Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-03-13T14:19:06.350Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Boyle, W Alice and Guglielmo, Christopher G and Hobson, Keith A and Norris, D Ryan},\n doi = {10.1098/rsbl.2011.0115},\n journal = {Biology Letters},\n number = {5}\n}

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\n \n\n \n \n \n \n \n \n Disentangling the drivers of reduced long-distance seed dispersal by birds in an experimentally fragmented landscape.\n \n \n \n \n\n\n \n Uriarte, M.; Anciaes, M.; Tolentino, M. B. S.; Rubim, P. R.; Johnson, E. J.; Bruna, E., M.\n\n\n \n\n\n\n Ecology, 92(4): 924-37. 2011.\n \n\n\n\n
\n\n\n\n \n \n $\"Disentangling$ Website\n \n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Disentangling the drivers of reduced long-distance seed dispersal by birds in an experimentally fragmented landscape.},\n type = {article},\n year = {2011},\n keywords = {Animals,Biological,Birds,Birds: physiology,Demography,Fruit,Heliconiaceae,Heliconiaceae: physiology,Models,Seeds,Seeds: physiology,Time Factors,Trees,acuminata,amazonian rain forest,brazil,dispersal kernels,frugivory,habitat fragmentation,heliconia,manakins,manaus,patch size,spatially explicit model,thrush,tropical forest,turdus},\n pages = {924-37},\n volume = {92},\n websites = {http://www.ncbi.nlm.nih.gov/pubmed/21661555},\n id = {09413c82-d862-3bae-b842-dca2cd260496},\n created = {2019-10-15T16:49:32.487Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T17:59:12.180Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Seed dispersal is a crucial component of plant population dynamics. Human landscape modifications, such as habitat destruction and fragmentation, can alter the abundance of fruiting plants and animal dispersers, foraging rates, vector movement, and the composition of the disperser community, all of which can singly or in concert affect seed dispersal. Here, we quantify and tease apart the effects of landscape configuration, namely, fragmentation of primary forest and the composition of the surrounding forest matrix, on individual components of seed dispersal of Heliconia acuminata, an Amazonian understory herb. First we identified the effects of landscape configuration on the abundance of fruiting plants and six bird disperser species. Although highly variable in space and time, densities of fruiting plants were similar in continuous forest and fragments. However, the two largest-bodied avian dispersers were less common or absent in small fragments. Second, we determined whether fragmentation affected foraging rates. Fruit removal rates were similar and very high across the landscape, suggesting that Heliconia fruits are a key resource for small frugivores in this landscape. Third, we used radiotelemetry and statistical models to quantify how landscape configuration influences vector movement patterns. Bird dispersers flew farther and faster, and perched longer in primary relative to secondary forests. One species also altered its movement direction in response to habitat boundaries between primary and secondary forests. Finally, we parameterized a simulation model linking data on fruit density and disperser abundance and behavior with empirical estimates of seed retention times to generate seed dispersal patterns in two hypothetical landscapes. Despite clear changes in bird movement in response to landscape configuration, our simulations demonstrate that these differences had negligible effects on dispersal distances. However, small fragments had reduced densities of Turdus albicollis, the largest-bodied disperser and the only one to both regurgitate and defecate seeds. This change in Turdus abundance acted together with lower numbers of fruiting plants in small fragments to decrease the probability of long-distance dispersal events from small patches. These findings emphasize the importance of foraging style for seed dispersal and highlight the primacy of habitat size relative to spatial configuration in preserving biotic interactions.},\n bibtype = {article},\n author = {Uriarte, M.; Anciaes, M.; Tolentino, M. B. S.; Rubim, P. R.; Johnson, E. J.; Bruna, E. M.},\n journal = {Ecology},\n number = {4}\n}

\n

\n\n\n

\n Seed dispersal is a crucial component of plant population dynamics. Human landscape modifications, such as habitat destruction and fragmentation, can alter the abundance of fruiting plants and animal dispersers, foraging rates, vector movement, and the composition of the disperser community, all of which can singly or in concert affect seed dispersal. Here, we quantify and tease apart the effects of landscape configuration, namely, fragmentation of primary forest and the composition of the surrounding forest matrix, on individual components of seed dispersal of Heliconia acuminata, an Amazonian understory herb. First we identified the effects of landscape configuration on the abundance of fruiting plants and six bird disperser species. Although highly variable in space and time, densities of fruiting plants were similar in continuous forest and fragments. However, the two largest-bodied avian dispersers were less common or absent in small fragments. Second, we determined whether fragmentation affected foraging rates. Fruit removal rates were similar and very high across the landscape, suggesting that Heliconia fruits are a key resource for small frugivores in this landscape. Third, we used radiotelemetry and statistical models to quantify how landscape configuration influences vector movement patterns. Bird dispersers flew farther and faster, and perched longer in primary relative to secondary forests. One species also altered its movement direction in response to habitat boundaries between primary and secondary forests. Finally, we parameterized a simulation model linking data on fruit density and disperser abundance and behavior with empirical estimates of seed retention times to generate seed dispersal patterns in two hypothetical landscapes. Despite clear changes in bird movement in response to landscape configuration, our simulations demonstrate that these differences had negligible effects on dispersal distances. However, small fragments had reduced densities of Turdus albicollis, the largest-bodied disperser and the only one to both regurgitate and defecate seeds. This change in Turdus abundance acted together with lower numbers of fruiting plants in small fragments to decrease the probability of long-distance dispersal events from small patches. These findings emphasize the importance of foraging style for seed dispersal and highlight the primacy of habitat size relative to spatial configuration in preserving biotic interactions.\n

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\n \n 2010\n \n \n (8)\n \n \n

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\n \n\n \n \n \n \n \n \n Mate choice for genetic quality: a test of the heterozygosity and compatibility hypotheses in a lek-breeding bird.\n \n \n \n \n\n\n \n Ryder, T.; Tori, W.; Blake, J.; Loiselle, B.; and Parker, P.\n\n\n \n\n\n\n Behavioral Ecology, 21(2): 203-210. 2010.\n \n\n\n\n
\n\n\n\n \n \n $\"Mate$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Mate choice for genetic quality: a test of the heterozygosity and compatibility hypotheses in a lek-breeding bird},\n type = {article},\n year = {2010},\n keywords = {Compatibility,Genetic quality,Good-genes,Heterozygosity,Lekking,Mate choice,Pipra filicauda,Territory acquisition},\n pages = {203-210},\n volume = {21},\n websites = {https://academic.oup.com/beheco/article-lookup/doi/10.1093/beheco/arp176},\n id = {57c31fc4-b9dc-3667-85b1-f88decacd64b},\n created = {2016-10-25T13:36:13.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.223Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Understanding female mate choice in nonresource-based mating systems, where females appear to express strong preferences despite receiving no direct benefits from mate choice, remain a challenge to behavioral ecology. Brown (Brown JL. 1997. A theory of mate choice based on heterozygosity. Behav Ecol. 8:60-65) proposed the "good-genes-as-heterozygosity" hypothesis, which sought to establish the genetic nature of male quality. Despite recent attention, few studies have examined how multiple components of genetic quality influence mate choice in a highly promiscuous mating system such as that of the lekking wire-tailed manakin (Pipra filicauda, Aves: Pipridae). Based on a 4-year study in the Amazon basin of Ecuador we ask whether female wire-tailed manakins use heterozygosity and/or dissimilarity (relatedness) as mate-choice criteria, and if heterozygosity influences the ontogeny of male social status. Our data show that females select more heterozygous males as their partners. Females do not, however, appear to select mates based on their genetic dissimilarity as mated pairs were more related than expected under random mating. Heterozygosity of territorial males was correlated with 2 male morphological traits (wing and tarsus length), which suggests that females may assess male genetic quality via phenotypic correlates. In addition, our data show that heterozygosity was related to male social rise (territory acquisition) and suggests that heterozygosity may act as a filter of male reproductive potential. Lastly, we find no support for indirect benefits (i.e., increased offspring genetic quality) obtained via female choice for heterozygous males.},\n bibtype = {article},\n author = {Ryder, T.B. and Tori, W.P. and Blake, J.G. and Loiselle, B.A. and Parker, P.G.},\n doi = {10.1093/beheco/arp176},\n journal = {Behavioral Ecology},\n number = {2}\n}

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\n \n\n \n \n \n \n \n Using interpubic distance for sexing manakins in the field.\n \n \n \n\n\n \n Mendenhall, C., D.; Sekercioglu, C., H.; and Brenes, F., O.\n\n\n \n\n\n\n Journal of Field Ornithology, 81(1): 49-63. 2010.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Using interpubic distance for sexing manakins in the field},\n type = {article},\n year = {2010},\n keywords = {Lek,Morphological sexing,Pubic symphysis,Pubis,Sexual dimorphism},\n pages = {49-63},\n volume = {81},\n id = {c2922444-ea88-3417-9aca-a9d2aac72ee2},\n created = {2018-04-22T22:19:23.423Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:23.423Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Field methods for determining the sex of birds are often limited due to morphometric overlap between sexes, intermediate plumages, seasonality, and reliance on subjective age classification. Interpubic distance, characterized in birds as the distance between the distal ends of the pubic bones, has not been formally tested as a method for determining the sex of birds, despite references among parrot breeders and the frequent use of analogous measurements in mammals. We developed a harmless and easily performed field method for measuring interpubic distance in studies involving bird capture, and compared the interpubic distances of known sex White-ruffed Manakins (Corapipo altera), Orange-collared Manakins (Manacus aurantiacus), and Blue-crowned Manakins (Lepidothrix coronata) to evaluate the possible use of this measurement to determine sex. Using interpubic distance ranges based on 85% confidence intervals where overlap existed between sexes, the sex of 92.8-100% of all manakins in our study was accurately determined with no misclassification. Interpubic distance performed better than plumage-based methods that sexed 74.0% of all individuals and misclassified 1.5%. Using linear discriminant analysis, we developed classification equations that allowed us to accurately determine the sex of all individuals with 100% accuracy using mass and interpubic distance. Additionally, we compared the interpubic distances of female White-ruffed Manakins to evaluate the potential to determine age and reproductive status. Despite an apparent relationship between interpubic distance, age and reproductive status, we concluded that interpubic distance has limited use for determining age and reproductive status due to extensive overlap (31.6-100%), but shows potential in other applications. Based on these results, we endorse the use of interpubic distance to determine the sex of manakins. We encourage further study to develop additional classification equations using different morphometric measurements and to test the efficacy of interpubic distance to determine sex in other bird species.},\n bibtype = {article},\n author = {Mendenhall, Chase D. and Sekercioglu, Cagan H. and Brenes, Federico Oviedo},\n doi = {10.1111/j.1557-9263.2009.00260.x},\n journal = {Journal of Field Ornithology},\n number = {1}\n}

\n

\n\n\n

\n Field methods for determining the sex of birds are often limited due to morphometric overlap between sexes, intermediate plumages, seasonality, and reliance on subjective age classification. Interpubic distance, characterized in birds as the distance between the distal ends of the pubic bones, has not been formally tested as a method for determining the sex of birds, despite references among parrot breeders and the frequent use of analogous measurements in mammals. We developed a harmless and easily performed field method for measuring interpubic distance in studies involving bird capture, and compared the interpubic distances of known sex White-ruffed Manakins (Corapipo altera), Orange-collared Manakins (Manacus aurantiacus), and Blue-crowned Manakins (Lepidothrix coronata) to evaluate the possible use of this measurement to determine sex. Using interpubic distance ranges based on 85% confidence intervals where overlap existed between sexes, the sex of 92.8-100% of all manakins in our study was accurately determined with no misclassification. Interpubic distance performed better than plumage-based methods that sexed 74.0% of all individuals and misclassified 1.5%. Using linear discriminant analysis, we developed classification equations that allowed us to accurately determine the sex of all individuals with 100% accuracy using mass and interpubic distance. Additionally, we compared the interpubic distances of female White-ruffed Manakins to evaluate the potential to determine age and reproductive status. Despite an apparent relationship between interpubic distance, age and reproductive status, we concluded that interpubic distance has limited use for determining age and reproductive status due to extensive overlap (31.6-100%), but shows potential in other applications. Based on these results, we endorse the use of interpubic distance to determine the sex of manakins. We encourage further study to develop additional classification equations using different morphometric measurements and to test the efficacy of interpubic distance to determine sex in other bird species.\n

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\n \n\n \n \n \n \n \n Storms drive altitudinal migration in a tropical bird.\n \n \n \n\n\n \n Boyle, W., A.; Norris, D., R.; and Guglielmo, C., G.\n\n\n \n\n\n\n Proceedings. Biological sciences / The Royal Society, 277(April): 2511-2519. 2010.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Storms drive altitudinal migration in a tropical bird.},\n type = {article},\n year = {2010},\n keywords = {allostasis,climate change,foraging,metabolism,partial migration,tropical forest},\n pages = {2511-2519},\n volume = {277},\n id = {b23a7d65-c20b-36f8-abb5-fee8d580d105},\n created = {2018-04-22T22:19:23.544Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:23.544Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Although migration is a widespread and taxonomically diverse behaviour, the ecological factors shaping migratory behaviour are poorly understood. Like other montane taxa, many birds migrate along elevational gradients in the tropics. Forty years ago, Alexander Skutch postulated that severe storms could drive birds to migrate downhill. Here, we articulate a novel mechanism that could link storms to mortality risks via reductions in foraging time and provide, to our knowledge, the first tests of this hypothesis in the White-ruffed Manakin (Corapipo altera), a small partially migratory frugivore breeding on the Atlantic slope of Costa Rica. As predicted, variation in rainfall was associated with plasma corticosterone levels, fat stores, plasma metabolites and haematocrit. By collecting data at high and low elevation sites simultaneously, we also found that high-elevation residents were more adversely affected by storms than low elevation migrants. These results, together with striking temporal capture patterns of altitudinal migrants relative to storms, provide, to our knowledge, the first evidence that weather-related risks incurred by species requiring high food intake rates can explain altitudinal migrations of tropical animals. These findings resolve conflicting evidence for and against food limitation being important in the evolution of this behaviour, and highlight how endogenous and exogenous processes influence life-history trade-offs made by individuals in the wild. Because seasonal storms are a defining characteristic of most tropical ecosystems and rainfall patterns will probably change in ensuing decades, these results have important implications for understanding the ecology, evolution and conservation of tropical animals.},\n bibtype = {article},\n author = {Boyle, W Alice and Norris, D Ryan and Guglielmo, Christopher G},\n doi = {10.1098/rspb.2010.0344},\n journal = {Proceedings. Biological sciences / The Royal Society},\n number = {April}\n}

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\n \n\n \n \n \n \n \n A Spatial Dance to the Music of Time in the Leks of Long-tailed Manakins.\n \n \n \n\n\n \n McDonald, D., B.\n\n\n \n\n\n\n 2010.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@misc{\n title = {A Spatial Dance to the Music of Time in the Leks of Long-tailed Manakins},\n type = {misc},\n year = {2010},\n id = {e7277598-a55b-3d04-be0c-f736e10b6309},\n created = {2018-04-22T22:19:25.381Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:25.381Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {misc},\n author = {McDonald, David B.}\n}

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\n \n\n \n \n \n \n \n \n Anting behavior by the White-bearded Manakin (Manacus manacus, Pipridae): an example of functional interaction in a frugivorous lekking bird.\n \n \n \n \n\n\n \n Cestari, C.\n\n\n \n\n\n\n Biota Neotropica, 10(4): 339-342. 12 2010.\n \n\n\n\n
\n\n\n\n \n \n $\"Anting$ Paper\n \n \n \n $\"Anting$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Anting behavior by the White-bearded Manakin (Manacus manacus, Pipridae): an example of functional interaction in a frugivorous lekking bird},\n type = {article},\n year = {2010},\n keywords = {Ants,Lek,Maintenance of plumage,Male-male competition,Restinga forest,Seeds},\n pages = {339-342},\n volume = {10},\n websites = {http://www.biotaneotropica.org.br/v10n4/en/abstract?short-communication+bn02110042010http://www.biotaneotropica.org.brhttp://www.biotaneotropica.org.brhttp://www.biotaneotropica.org.br/v10n4/en/abstract?short-communication+bn02110042010,http://www.scielo.},\n month = {12},\n id = {e3b18ec6-bb0d-3a89-ae06-7238538a1df3},\n created = {2019-02-18T17:36:47.227Z},\n file_attached = {true},\n profile_id = {d05effc8-927f-32e8-a098-4b34a7465a6a},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-01-08T01:50:18.065Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Behavioral studies of birds have reported several functions for active anting. Maintenance of plumage and prevention from ectoparasites are some examples. In this context, anting by males may be of particular importance in a classical lek mating system, where male-male competition is common and individuals with higher fitness may be more successful at attracting of females. In the present note, I describe the anting behavior of White-bearded Manakin (Manacus manacus) and I relate it to lek breeding and feeding (frugivory) habits of the species. Males used up to seven Solenopsis sp. ants. They rubbed each small ant from 4 to 31 times on undertail feathers until the ants were degraded; ants were not eaten. Males then searched for a new ant in the court. Seeds discarded by males on their individual display courts attract herbivorous ants that are used for anting as a way to maintain feathers and fitness. I hypothesize that anting in White-bearded Manakin may increase the probability of males to attract females to their display courts.},\n bibtype = {article},\n author = {Cestari, César},\n doi = {10.1590/S1676-06032010000400038},\n journal = {Biota Neotropica},\n number = {4}\n}

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\n \n\n \n \n \n \n \n \n Does food abundance explain altitudinal migration in a tropical frugivorous bird?.\n \n \n \n \n\n\n \n Boyle, W., A.\n\n\n \n\n\n\n Canadian Journal of Zoology, 88(2): 204-213. 2 2010.\n \n\n\n\n
\n\n\n\n \n \n $\"Does$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Does food abundance explain altitudinal migration in a tropical frugivorous bird?},\n type = {article},\n year = {2010},\n pages = {204-213},\n volume = {88},\n websites = {http://www.nrcresearchpress.com/doi/10.1139/Z09-133},\n month = {2},\n id = {822067cd-773f-3729-9237-a5616a35af4f},\n created = {2019-03-13T14:19:06.069Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-03-13T14:19:06.069Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Many animals undergo annual migrations. These movements are well studied at proximate levels, but their fundamental causes are poorly understood. Among tropical frugivorous birds, annual migration is thought to have evolved in the context of exploiting reciprocal peaks in fruit abundance among locations and seasons, yet previous tests of this hypothesis have yielded equivocal results. In this paper, I tested whether protein and (or) fruit limitation explain both uphill and downhill migratory movements in a tropical frugivorous bird, the White-ruffed Manakin (Corapipo altera Hellmayer, 1906). While White-ruffed Manakins likely migrate uphill to exploit peaks in fruit abundance, I found no evidence that elevational differences in fruit abundance explain the downhill portion of the migratory cycle. This result challenges long-standing ideas regarding the causes of altitudinal migration because it implies that birds seeking to maximize fruit intake should remain sedentary at higher elevations. Data are also inconsistent with the hypothesis that White-ruffed Manakins migrate (either uphill or downhill) to exploit arthropod prey. Future studies should consider how variation in weather, predators, or parasites could help explain altitudinal migrations of birds from breeding areas to nonbreeding areas.},\n bibtype = {article},\n author = {Boyle, W. A.},\n doi = {10.1139/Z09-133},\n journal = {Canadian Journal of Zoology},\n number = {2}\n}

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\n \n\n \n \n \n \n \n \n A molecular phylogenetic hypothesis for the manakins (Aves: Pipridae).\n \n \n \n \n\n\n \n McKay, B., D.; Barker, F., K.; Mays, H., L.; Doucet, S., M.; and Hill, G., E.\n\n\n \n\n\n\n Molecular Phylogenetics and Evolution, 55(2): 733-737. 5 2010.\n \n\n\n\n
\n\n\n\n \n \n $\"A$ Paper\n \n \n \n $\"A$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {A molecular phylogenetic hypothesis for the manakins (Aves: Pipridae)},\n type = {article},\n year = {2010},\n keywords = {Manakin,Nuclear,Phylogeny,Pipridae,Suboscine,Tyrannida,mtDNA},\n pages = {733-737},\n volume = {55},\n websites = {https://www.sciencedirect.com/science/article/pii/S1055790310000928,https://linkinghub.elsevier.com/retrieve/pii/S1055790310000928},\n month = {5},\n publisher = {Academic Press},\n day = {1},\n id = {3c6f0ef1-adef-3eac-a3b5-948fc0d4e80a},\n created = {2019-10-11T00:58:18.259Z},\n accessed = {2018-12-05},\n file_attached = {true},\n profile_id = {1673cbd3-9e04-35a5-8e12-efeeca50b844},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-02T01:11:29.020Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Phylogenetic relationships among the 14 manakin genera were inferred from DNA sequence data obtained from both mitochondrial and nuclear DNA loci. Phylogenetic analysis resulted in a well-supported hypothesis that corroborates a sister relationship between tyrant-manakins and the "core" manakins (Antilophia, Chiroxiphia, Corapipo, Dixiphia, Heterocercus, Ilicura, Lepidothrix, Manacus, Masius, Machaeropterus, Pipra, and Xenopipo). Our data strongly support these core manakin genera as a monophyletic group. Consistent with previous work, we find two major clades within the core manakins, although the placement of the genus Xenopipo with regards to these two clades is ambiguous. Generic relationships within these clades are generally well resolved. Although we find some concordance between our study and a previous manakin phylogeny based on syringeal characters, we note several fundamental differences between the phylogenies. Thus, we offer a new phylogenetic hypothesis for Pipridae. © 2010 Elsevier Inc. All rights reserved.},\n bibtype = {article},\n author = {McKay, Bailey D. and Barker, F. Keith and Mays, Herman L. and Doucet, Stéphanie M. and Hill, Geoffrey E.},\n doi = {10.1016/j.ympev.2010.02.024},\n journal = {Molecular Phylogenetics and Evolution},\n number = {2}\n}

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\n \n\n \n \n \n \n \n Effects of forest fragmentation on the seedling recruitment of a tropical herb : assessing seed vs . safe-site limitation URL : http://www.jstor.org/stable/25661.\n \n \n \n\n\n \n Uriarte, M.; Bruna, E., M.; Rubim, P.; Anciaes, M.; and Jonckheere, I.\n\n\n \n\n\n\n Ecology, 91(5): 1317-1328. 2010.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Effects of forest fragmentation on the seedling recruitment of a tropical herb : assessing seed vs . safe-site limitation URL : http://www.jstor.org/stable/25661},\n type = {article},\n year = {2010},\n keywords = {amazonian forest,heliconia acuminata,landscape modification,safe-site limitation,seed},\n pages = {1317-1328},\n volume = {91},\n id = {4a687899-f5dc-3d7a-a0f9-176bb0e3eeaf},\n created = {2019-10-15T16:49:33.301Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T17:59:12.143Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Uriarte, Maria and Bruna, Emilio M and Rubim, Paulo and Anciaes, Marina and Jonckheere, Inge},\n journal = {Ecology},\n number = {5}\n}

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\n \n 2009\n \n \n (6)\n \n \n

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\n \n\n \n \n \n \n \n Female mate choice across spatial scales: Influence of lek and male attributes on mating success of blue-crowned manakins.\n \n \n \n\n\n \n Durães, R.; Loiselle, B., A.; Parker, P., G.; and Blake, J., G.\n\n\n \n\n\n\n Proceedings of the Royal Society B: Biological Sciences, 276(1663): 1875-1881. 2009.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Female mate choice across spatial scales: Influence of lek and male attributes on mating success of blue-crowned manakins},\n type = {article},\n year = {2009},\n keywords = {Display rate,Fisherian sexual selection,Genetic benefits,Lek size,Lepidothrix coronata,Male quality},\n pages = {1875-1881},\n volume = {276},\n id = {b3256ae6-e988-3485-b903-3f60793396d3},\n created = {2016-10-25T13:36:14.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.222Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Lekking males compete for females within and among leks, yet female choice is expected to work differently at each of these spatial scales. We used paternity analyses to examine how lek versus male attributes influence mate choice in the blue-crowned manakin Lepidothrix coronata. We tested the hypotheses that females prefer (i) to mate at larger leks where a larger number of potential mates can be assessed, (ii) to mate with unrelated or highly heterozygous males expected to produce high-quality offspring, (iii) to mate with males that display at higher rates, and that (iv) display honestly reflects male genetic quality. Our results show that (i) males at larger leks are not more likely to sire young, although females nesting close to small leks travel further to reach larger leks, (ii) siring males are not less related to females or more heterozygous than expected, (iii) within a lek, high-display males are more likely to sire young, and (iv) both male heterozygosity and display rate increased with lek size, and as a result display does not reliably reflect male genetic quality across leks. We suggest that female mate choice in this species is probably driven by a Fisherian process rather than adaptive genetic benefits. © 2009 The Royal Society.},\n bibtype = {article},\n author = {Durães, Renata and Loiselle, Bette A. and Parker, Patricia G. and Blake, John G.},\n doi = {10.1098/rspb.2008.1752},\n journal = {Proceedings of the Royal Society B: Biological Sciences},\n number = {1663}\n}

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\n \n\n \n \n \n \n \n Young-boy networks without kin clusters in a lek-mating manakin.\n \n \n \n\n\n \n McDonald, D., B.\n\n\n \n\n\n\n Behavioral Ecology and Sociobiology, 63(7): 1029-1034. 2009.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Young-boy networks without kin clusters in a lek-mating manakin},\n type = {article},\n year = {2009},\n keywords = {Cooperation,Kin selection,Kinship,Leks,Manakin,Relatedness,Social network},\n pages = {1029-1034},\n volume = {63},\n id = {235c4710-221e-3d46-a82c-915999512154},\n created = {2018-04-22T22:19:23.167Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:23.167Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {I use 10 years of data from a long-term study of lek-mating long-tailed manakins to relate the social network among males to their spatial and genetic structure. Previously, I showed that the network connectivity of young males predicts their future success. Here, I ask whether kinship might shape the organization of this “young-boy network”. Not surprisingly, males that were more socially distant (linked by longer network paths) were affiliated with perch zones (lek arenas) that were further apart. Relatedness ( r ) among males within the network decreased as social distance increased, as might be expected under kin selection. Nevertheless, any role for indirect inclusive fitness benefits is refuted by the slightly negative mean relatedness among males at all social distances within the network (overall mean r = −0.06). That is, relatedness ranged from slightly negative (−0.04) to more negative (−0.2). In contrast, relatedness in dyads for which at least one of the males was outside the social network (involving at least one blood-sampled male not documented to have interacted with other banded males) was slightly above the random expectation (mean r = 0.05). The slight variations around r = 0 among males of different categories likely reflect dispersal dynamics, rather than any influence of kinship on social organization. Relatedness did not covary with the age difference between males. These results, together with previous results for lack of relatedness between alpha and beta male partners, refute any role for kin selection in the evolution of cooperative display in this lek-mating system.},\n bibtype = {article},\n author = {McDonald, David B.},\n doi = {10.1007/s00265-009-0722-9},\n journal = {Behavioral Ecology and Sociobiology},\n number = {7}\n}

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\n \n\n \n \n \n \n \n \n It takes two to tango: reproductive skew and social correlates of male mating success in a lek-breeding bird.\n \n \n \n \n\n\n \n Ryder, T., B.; Parker, P., G.; Blake, J., G.; and Loiselle, B., a.\n\n\n \n\n\n\n Proceedings of the Royal Society B, 276(1666): 2377-84. 7 2009.\n \n\n\n\n
\n\n\n\n \n \n $\"It$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {It takes two to tango: reproductive skew and social correlates of male mating success in a lek-breeding bird.},\n type = {article},\n year = {2009},\n keywords = {Animal,Animals,Cues,Female,Male,Passeriformes,Passeriformes: physiology,Sexual Behavior,Social Behavior,Social Dominance},\n pages = {2377-84},\n volume = {276},\n websites = {http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=2690469&tool=pmcentrez&rendertype=abstract},\n month = {7},\n day = {7},\n id = {e8c9144c-ce51-300f-be9e-e23be3f10f7b},\n created = {2018-04-22T22:19:26.579Z},\n accessed = {2014-08-13},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:26.579Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Variance in reproductive success among individuals is a defining characteristic of many social vertebrates. Yet, our understanding of which male attributes contribute to reproductive success is still fragmentary in most cases. Male-male reproductive coalitions, where males jointly display to attract females, are of particular interest to evolutionary biologists because one male appears to forego reproduction to assist the social partner. By examining the relationship between social behaviour and reproductive success, we can elucidate the proximate function of coalitions in the context of mate choice. Here, we use data from a 4-year study of wire-tailed manakins (Pipra filicauda) to provide molecular estimates of reproductive skew and to test the hypothesis that male-male social interactions, in the context of coordinated displays, positively influence a male's reproductive success. More specifically, we quantify male-male social interactions using network metrics and predict that greater connectivity will result in higher relative reproductive success. Our data show that four out of six leks studied had significant reproductive skew, with success apportioned to very few individuals in each lek. Metrics of male social affiliations derived from our network analysis, especially male connectivity, measured as the number of males with whom the focal male has extended interactions, were strong predictors of the number of offspring sired. Thus, network connectivity is associated with male fitness in wire-tailed manakins. This pattern may be the result of shared cues used by both sexes to assess male quality, or the result of strict female choice for coordinated display behaviour.},\n bibtype = {article},\n author = {Ryder, Thomas B and Parker, Patricia G and Blake, John G and Loiselle, Bette a},\n doi = {10.1098/rspb.2009.0208},\n journal = {Proceedings of the Royal Society B},\n number = {1666}\n}

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\n \n\n \n \n \n \n \n \n How to keep tropical montane frugivorous birds in captivity.\n \n \n \n \n\n\n \n Boyle, W., A.\n\n\n \n\n\n\n Ornitologia Neotropical, 20(2): 265-273. 2009.\n \n\n\n\n
\n\n\n\n \n \n $\"How$ Website\n \n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {How to keep tropical montane frugivorous birds in captivity},\n type = {article},\n year = {2009},\n keywords = {Body condition,Captive bird,Costa Rica,Distress,Frugivory,Montane forest,Synthetic diet},\n pages = {265-273},\n volume = {20},\n websites = {http://www.scopus.com/inward/record.url?eid=2-s2.0-68149136785&partnerID=40&md5=7c89c0a143dafdcb202d5aa60169f74c},\n id = {63b47789-4dd4-3df1-8161-33f5bd9bec8c},\n created = {2019-03-13T14:19:06.078Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-03-13T14:19:06.078Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {As the study of Neotropical ornithology matures, increasing numbers of researchers are shifting from primarily observational studies of birds in their natural habitats to experimental studies which often require that birds be kept in captivity. Little guidance currently exists to help researchers plan captive studies of Neotropical species. I report here on experiences bringing wild frugivorous birds into captivity at a premontane forest site in Costa Rica. I suggest protocols that will increase the likelihood that birds will rapidly learn to consume synthetic diet and offer some guidelines that may increase survival probability under rustic field conditions. I conclude by considering geographic, temporal, and species-level factors that may affect the success with which birds adapt to captive conditions to help guide species selection in future studies. Accepted 31 March 2009.},\n bibtype = {article},\n author = {Boyle, W A},\n journal = {Ornitologia Neotropical},\n number = {2}\n}

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\n \n\n \n \n \n \n \n Diversidade de piprídeos (Aves: Pipridae) amazônicos: Seleção sexual, ecologia e evolução.\n \n \n \n\n\n \n Anciães, M.; Durães, R., R.; Cerqueira, M., C.; Fortuna, J., R.; Sohn, N.; Cohn-Haft, M.; and Farias, I., P.\n\n\n \n\n\n\n Oecologia Brasiliensis, 13(1): 165-182. 2009.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Diversidade de piprídeos (Aves: Pipridae) amazônicos: Seleção sexual, ecologia e evolução},\n type = {article},\n year = {2009},\n keywords = {Biogeography,Effective population size,Lek polygyny,Piprids,Sexual selection},\n pages = {165-182},\n volume = {13},\n id = {87b07964-09f2-3d36-90ba-d6ea25a43c89},\n created = {2019-10-15T16:49:32.479Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T17:59:11.762Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Apresentamos uma revisão de estudos recentes sobre a história evolutiva de pássaros da família Pipridae. Os piprídeos estão expostos a forte pressão de seleção sexual, dado seu sistema reprodutivo de leques poligínicos. Com isso, damos ênfase aos efeitos da seleção sexual nos padrões de distribuição geográfica, utilização de hábitat e em aspectos do comportamento reprodutivo de populações e espécies, apresentando o sistema de Lepidothrix coronata como estudo de caso. Enquanto estudos filogeográficos indicam considerável estrutura genética entre populações de piprídeos, estudos em escala populacional investigam aspectos de seleção sexual, como os efeitos da organização social e espacial no desvio do sucesso reprodutivo entre machos, bem como sobre a evolução de cortes e plumagens elaboradas em machos. Estes dados indicam que a seleção sexual não somente é responsável pela elaboração morfológica e comportamental na família, como também contribui para a diferenciação entre histórias de vida em linhagens evolutivas. Investigar padrões de variação morfológica e comportamental, bem como aspectos da organização social e espacial em populações, portanto, nos permitirá compreender melhor a história demográfica das espécies da família. São escassos ainda estudos que comparem repertórios e sucesso reprodutivo entre machos, ou que investiguem como características do hábitat afetam as preferências de fêmeas em escala local. Em escala regional, estudos em zonas de contato, por exemplo, oferecem oportunidade para compreendermos a importância da variação em preferência de fêmeas e interações entre machos na disseminação de genes em introgressão. Assim, compreenderemos a relevância da seleção sexual para a formação de linhagens evolutivas independentes e, portanto, para a diversificação taxonômica na família},\n bibtype = {article},\n author = {Anciães, Marina and Durães, Renata R. and Cerqueira, Marconi C. and Fortuna, Jaqueline R. and Sohn, Natacha and Cohn-Haft, Mario and Farias, Izeni P.},\n doi = {10.4257/oeco.2009.1301.13},\n journal = {Oecologia Brasiliensis},\n number = {1}\n}

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\n \n\n \n \n \n \n \n Ecological niches and their evolution among neotropical manakins (Aves: Pipridae).\n \n \n \n\n\n \n Anciães, M.; and Townsend Peterson, A.\n\n\n \n\n\n\n Journal of Avian Biology, 40(6): 591-604. 2009.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Ecological niches and their evolution among neotropical manakins (Aves: Pipridae)},\n type = {article},\n year = {2009},\n pages = {591-604},\n volume = {40},\n id = {42bec094-a60d-3cbf-aa56-03fc43aaa397},\n created = {2019-10-22T21:46:51.886Z},\n file_attached = {false},\n profile_id = {1673cbd3-9e04-35a5-8e12-efeeca50b844},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-22T21:46:51.886Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Study of the evolution of ecological characteristics using phylogenetic information is only beginning, but several new tools and approaches open fascinating possibilities. The Pipridae is a diverse and well-known family of frugivorous birds that are easily sampled and that are broadly distributed across many Neotropical environments, and as such are appropriate for studies of ecological niche evolution. Using known occurrences and climate and topography data sets, we modeled ecological niches for each species in the family, and carried out analyses aimed at describing ecological niches of manakins and understanding historical patterns of ecological change in the family. Most species’ ecological niches were characterized by warm and relatively humid conditions, reflecting the great diversification of the family in lowland and montane forests of western South America. Ecological niche evolution was in general conservative, with most sister species pairs being closely similar ecologically, indicating that isolation rather than adaptation to new ecological conditions has dominated the diversification in this family. Exceptions to this pattern represent interesting foci for future research, whereas studies of ecological niches focusing on past distributions of manakins will allow further biogeographic inferences.},\n bibtype = {article},\n author = {Anciães, Marina and Townsend Peterson, A.},\n doi = {10.1111/j.1600-048X.2009.04597.x},\n journal = {Journal of Avian Biology},\n number = {6}\n}

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\n \n 2008\n \n \n (14)\n \n \n

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\n \n\n \n \n \n \n \n \n Endocrinology in field studies: Problems and solutions for the experimental design.\n \n \n \n \n\n\n \n Fusani, L.\n\n\n \n\n\n\n 2008.\n \n\n\n\n
\n\n\n\n \n \n $\"Endocrinology$ Paper\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@misc{\n title = {Endocrinology in field studies: Problems and solutions for the experimental design},\n type = {misc},\n year = {2008},\n source = {General and Comparative Endocrinology},\n keywords = {Field study,Gonadectomy,Hormone replacement,Hormone treatment,Hormone-dependent traits,Methods,Testosterone},\n pages = {249-253},\n volume = {157},\n issue = {3},\n id = {f47a560d-ef7e-344f-a692-562b4d403bd0},\n created = {2016-08-23T22:28:22.000Z},\n file_attached = {true},\n profile_id = {d132db1b-8e9a-3336-8a73-fcc7f47f1a66},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.762Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {The increasing interest in hormones among field biologists can be frustrating because of the difficulties of applying classical endocrinological methods to natural settings. A few thoroughly tested methods have become popular because of their simplicity of use. This does not mean that such methods are the best or the appropriate ones for all studies. In this brief review I will examine some common problems encountered by field biologists who want to study the relationships between a morphological, behavioral, or physiological trait and a hormone. First, I will discuss why questions asked in the field often differ substantially from those asked in the laboratory, and how to adapt the design of the experiment accordingly. Second, I will review alternative methods to study hormone-trait relationships and how to combine them to strengthen the conclusions that can be drawn from the study. Then, I will discuss how to find the right control for a hormonal manipulation. Finally, I will examine the pitfalls associated with long-term hormonal treatment and the available methods for such types of studies. © 2008 Elsevier Inc. All rights reserved.},\n bibtype = {misc},\n author = {Fusani, Leonida},\n doi = {10.1016/j.ygcen.2008.04.016}\n}

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\n \n\n \n \n \n \n \n Advances in sexual selection theory: Insights from tropical avifauna.\n \n \n \n\n\n \n Tori, W., P.; Durães, R.; Ryder, T., B.; Anciães, M.; Karubian, J.; Macedo, R., H.; Uy, J., A., C.; Parker, P., G.; Smith, T., B.; Stein, A., C.; Webster, M., S.; Blake, J., G.; and Loiselle, B., A.\n\n\n \n\n\n\n In Ornitologia Neotropical, volume 19, pages 151-163, 2008. \n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@inproceedings{\n title = {Advances in sexual selection theory: Insights from tropical avifauna},\n type = {inproceedings},\n year = {2008},\n keywords = {Extra-pair paternity,Hybridization,Lekking,Mate choice,Reproductive skew,Sexual selection,Tropical birds,Tropical-temperate comparisons,Visual signals},\n pages = {151-163},\n volume = {19},\n issue = {SUPPL.},\n id = {1545868d-4ad3-380a-9acd-4ca0c07ec295},\n created = {2016-10-25T13:36:13.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.394Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Over the last 30 years, sexual selection has become one of the most influential and rapidly growing areas within evolutionary biology and behavioral ecology. Sexual selection has important effects on the evolution of life history traits, mating systems and morphology, and also has been suggested as a factor that promotes speciation. Avian systems have played an essential role as models in the development of sexual selection theory. However, most studies have focused on temperate species, although they account for less than one quarter of avian species worldwide. Therefore, before applying existing theories universally, caution is advised, especially considering latitudinal trends in life history traits and evolutionary strategies. Here, we brought together five tropical bird studies covering different aspects of sexual selection theory. Two studies detail the evolutionary processes involved with plumage signals; one of these deals with the influence of female sensory drive on the evolution of male plumage, and the second investigates how non-random female mate choice can promote genetic introgression along a hybrid zone. A third study examines how sex differences in diet can lead to temporal asynchrony between periods of peak male display activity and female nesting. A fourth study details how differences in lek spatial structure and social organization influence the degree of male reproductive skew among manakins. The fifth study examines differences in the intensity of sexual selection in temperate and tropical taxa and assesses current knowledge regarding the frequency of extra-pair paternity among regions. The contributions of these studies to our current understanding of sexual selection are discussed.},\n bibtype = {inproceedings},\n author = {Tori, Wendy P. and Durães, Renata and Ryder, Thomas B. and Anciães, Marina and Karubian, Jordan and Macedo, Regina H. and Uy, J. Albert C. and Parker, Patricia G. and Smith, Thomas B. and Stein, Adam C. and Webster, Michael S. and Blake, John G. and Loiselle, Bette A.},\n booktitle = {Ornitologia Neotropical}\n}

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\n \n\n \n \n \n \n \n Nest survival for two species of manakins (Pipridae) in lowland Ecuador.\n \n \n \n\n\n \n Ryder, T., B.; Durães, R.; Tori, W., P.; Hidalgo, J., R.; Loiselle, B., A.; and Blake, J., G.\n\n\n \n\n\n\n Journal of Avian Biology, 39(3): 355-358. 2008.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Nest survival for two species of manakins (Pipridae) in lowland Ecuador},\n type = {article},\n year = {2008},\n pages = {355-358},\n volume = {39},\n id = {5ddb5d53-57d4-3ee5-bced-7fc29e05a19f},\n created = {2016-10-25T13:36:13.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:23.667Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Estimates of reproductive success are essential to understand life-history strategies, yet tropical species remain under-studied relative to their temperate counterparts. Here, we report nest survival probabilities for two manakin species (Pipridae). We monitored 61 wire-tailed manakin Pipra filicauda and 45 blue-crowned manakin Lepidothrix coronata nests during three breeding seasons. Both species suffered high nest failure (84%). We modeled the effects of year, nest height, nest age (for P. filicauda only), as well as nest manipulation on daily survival rates (DSR) using program MARK. DSR decreased with nest age in P. filicauda whereas a constant survival model was best fitted for L. coronata. Average DSR was 89% for P. filicauda and 85% for L. coronata. This study reports some of the lowest nest survival rates among tropical passerines and poses important questions about population maintenance. © 2008 The Authors.},\n bibtype = {article},\n author = {Ryder, Thomas B. and Durães, Renata and Tori, Wendy P. and Hidalgo, José R. and Loiselle, Bette A. and Blake, John G.},\n doi = {10.1111/j.0908-8857.2008.04290.x},\n journal = {Journal of Avian Biology},\n number = {3}\n}

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\n \n\n \n \n \n \n \n Crop size, plant aggregation, and microhabitat type affect fruit removal by birds from individual melastome plants in the Upper Amazon.\n \n \n \n\n\n \n Blendinger, P., G.; Loiselle, B., A.; and Blake, J., G.\n\n\n \n\n\n\n Oecologia, 158(2): 273-283. 2008.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Crop size, plant aggregation, and microhabitat type affect fruit removal by birds from individual melastome plants in the Upper Amazon},\n type = {article},\n year = {2008},\n keywords = {Fruit-eating bird,Manakin,Miconia fosteri,Miconia serrulata,Seed dispersal},\n pages = {273-283},\n volume = {158},\n id = {9e47de49-aa79-3a6f-86f9-8f70dc8872d1},\n created = {2016-10-25T13:36:14.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:23.679Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {We studied the efficiency (proportion of the crop removed) and quantitative effectiveness (number of fruits removed) of dispersal of Miconia fosteri and M. serrulata (Melastomataceae) seeds by birds in lowland tropical wet forest of Ecuador. Specifically, we examined variation in fruit removal in order to reveal the spatial scale at which crop size influences seed dispersal outcome of individual plants, and to evaluate how the effect of crop size on plant dispersal success may be affected by conspecific fruit abundance and by the spatial distribution of frugivore abundance. We established two 9-ha plots in undisturbed terra-firme understory, where six manakin species (Pipridae) disperse most seeds of these two plant species. Mean levels of fruit removal were low for both species, with high variability among plants. In general, plants with larger crop sizes experienced greater efficiency and effectiveness of fruit removal than plants with smaller crops. Fruit removal, however, was also influenced by microhabitat, such as local topography and local neighborhood. Fruit-rich and disperser-rich patches overlapped spatially for M. fosteri but not M. serrulata, nonetheless fruit removal of M. serrulata was still much greater in fruit-rich patches. Fruit removal from individual plants did not decrease in patches with many fruiting conspecifics and, in fact, removal effectiveness was enhanced for M. fosteri with small crop sizes when such plants were in patches with more conspecifics. These results suggest that benefits of attracting dispersers to a patch balanced or outweighed the costs of competition for dispersers. Spatial pattern of fruit removal, a measure of plant fitness, depended on a complex interaction among plant traits, spatial patterns of plant distribution, and disperser behavior. © 2008 Springer-Verlag.},\n bibtype = {article},\n author = {Blendinger, Pedro G. and Loiselle, Bette A. and Blake, John G.},\n doi = {10.1007/s00442-008-1146-3},\n journal = {Oecologia},\n number = {2}\n}

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\n \n\n \n \n \n \n \n Spatial and temporal dynamics at manakin leks: Reconciling lek traditionality with male turnover.\n \n \n \n\n\n \n Durães, R.; Loiselle, B., A.; and Blake, J., G.\n\n\n \n\n\n\n Behavioral Ecology and Sociobiology, 62(12): 1947-1957. 2008.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Spatial and temporal dynamics at manakin leks: Reconciling lek traditionality with male turnover},\n type = {article},\n year = {2008},\n keywords = {Ecuador,Lek dynamics,Lepidothrix coronata,Male turnover,Pipridae,Population dynamics,Territoriality},\n pages = {1947-1957},\n volume = {62},\n id = {07ed828a-bf6a-34d8-8284-bfb259a55235},\n created = {2016-10-25T13:36:14.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.488Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Leks, display grounds where males congregate and females visit to copulate, are typically traditional in location, despite often high turnover of individual males. How leks can persist in face of male turnover is not well understood, in part due to a lack of detailed field data allowing for a clear understanding of lek dynamics. We followed the fate of individual males at 11 to 15 leks of the blue-crowned manakin Lepidothrix coronata across four breeding seasons to gain insights on how leks are formed and changed in space and time. Between years, leks were traditional in location despite changes in territory ownership due to male disappearance and recruitment. New males were equally likely to recruit by taking over existing territories or by establishing new territories. Recruitment was influenced by age, as recruits were more likely to be adults than subadults. Lek size did not affect the probabilities of a male recruiting or persisting at a territory, and vocalization rate, a correlate of mating success in this population, did not affect male persistence. We used our field data to model changes in lek size and composition over longer periods of time (100 years) to understand how lek traditionality can be reconciled with high male turnover. Our simulations showed that leks in our population rapidly stabilize in size despite changes in territory ownership and that rates of male recruitment and disappearance compensate each other, such that leks have the potential to persist for several decades after the original males have disappeared from them. © 2008 Springer-Verlag.},\n bibtype = {article},\n author = {Durães, Renata and Loiselle, Bette A. and Blake, John G.},\n doi = {10.1007/s00265-008-0626-0},\n journal = {Behavioral Ecology and Sociobiology},\n number = {12}\n}

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\n \n\n \n \n \n \n \n Estimates of apparent survival rates for forest birds in eastern Ecuador.\n \n \n \n\n\n \n Blake, J., G.; and Loiselle, B., A.\n\n\n \n\n\n\n Biotropica, 40(4): 485-493. 2008.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Estimates of apparent survival rates for forest birds in eastern Ecuador},\n type = {article},\n year = {2008},\n keywords = {Capture-recapture,Flocking behavior,Neotropical birds,Transients,Tropical forest},\n pages = {485-493},\n volume = {40},\n id = {707667fc-a38c-35a2-84a3-e1e1fc8bf111},\n created = {2016-10-25T13:36:14.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.421Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Knowledge of survival rates of Neotropical landbirds remains limited, with estimates of apparent survival available from relatively few sites and species. We used capture-mark-recapture models to estimate apparent survival of 31 species from eastern Ecuador based on data collected from 2001 to 2006. Models assuming constant survival had highest support for 27 species; models incorporating effects of transients were highest for four. Average apparent survival across 30 species of passerines was 0.58 (± 0.02 SE); apparent survival was lower during the first interval after initial capture (φ1: mean = 0.49 ± 0.03) than during subsequent intervals (φ2: mean = 0.60 ± 0.02). Apparent survival was similar among three families represented by at least four species (Thamnophilidae: 0.57 ± 0.03, N = 10; Furnariidae: 0.59 ± 0.03, N = 5; Pipridae: 0.56 ± 0.02, N = 4). There was no indication that species that occur in flocks had higher survival than nonflocking species (obligate flock members: 0.57 ± 0.03, N = 10; facultative flock members: 0.56 ± 0.04, N = 5; nonflocking: 0.59 ± 0.03, N = 15). Comparisons of published estimates of apparent survival of tropical species demonstrated substantial differences among species and, in some cases, within species across different sites in the Neotropics. Our results support previous studies that concluded that early estimates of high (< 85%) survival in tropical birds may not be representative of all tropical species. Future studies should focus on understanding factors (e.g., life-history traits) that promote differences in survival among species within tropical forests. © 2008 by The Association for Tropical Biology and Conservation.},\n bibtype = {article},\n author = {Blake, John G. and Loiselle, Bette A.},\n doi = {10.1111/j.1744-7429.2007.00395.x},\n journal = {Biotropica},\n number = {4}\n}

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\n \n\n \n \n \n \n \n \n Behavior, natural history and neuroendocrinology of a tropical bird.\n \n \n \n \n\n\n \n Schlinger, B., a.; Day, L., B.; and Fusani, L.\n\n\n \n\n\n\n General and comparative endocrinology, 157(3): 254-8. 7 2008.\n \n\n\n\n
\n\n\n\n \n \n $\"Behavior,$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Behavior, natural history and neuroendocrinology of a tropical bird.},\n type = {article},\n year = {2008},\n keywords = {Animals,Male,Neuroendocrinology,Sexual Behavior, Animal,Sexual Behavior, Animal: physiology,Songbirds,Songbirds: physiology,Tropical Climate},\n pages = {254-8},\n volume = {157},\n websites = {http://www.ncbi.nlm.nih.gov/pubmed/18579141},\n month = {7},\n id = {24053627-3e9e-3a05-9940-a6275b1fdec3},\n created = {2018-04-22T22:19:21.821Z},\n accessed = {2014-09-24},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:21.821Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Male Golden-collared manakins (Manacus vitellinus) of Panama perform an acrobatic and noisy courtship display, the result of an intense process of sexual selection. These birds have a lek mating system with the reproductive success of males depending almost entirely on their courtship. We have studied this remarkable behavior and investigated seasonal cycles of testosterone secretion, hormonal activation of courtship and neuromuscular adaptations that underlie the performance of male courtship behavior. We describe these studies in the context of the natural history of this fascinating lowland tropical species. Our studies have shown that manakin courtship requires a series of morphological and physiological specializations and represents an exceptional model system for studying the hormonal control of elaborate courtship displays.},\n bibtype = {article},\n author = {Schlinger, Barney a and Day, Lainy B and Fusani, Leonida},\n doi = {10.1016/j.ygcen.2008.05.015},\n journal = {General and comparative endocrinology},\n number = {3}\n}

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\n \n\n \n \n \n \n \n Sexual selection in a lekking bird: the relative opportunity for selection by female choice and male competition.\n \n \n \n\n\n \n DuVal, E., H.; and Kempenaers, B.\n\n\n \n\n\n\n Proceedings. Biological sciences / The Royal Society, 275(May): 1995-2003. 2008.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Sexual selection in a lekking bird: the relative opportunity for selection by female choice and male competition.},\n type = {article},\n year = {2008},\n keywords = {cooperation,lek,male,male competition,mate choice,reproductive skew,sexual selection},\n pages = {1995-2003},\n volume = {275},\n id = {9e06e7e0-a9df-3cd4-9e0d-85b77cea787f},\n created = {2018-04-22T22:19:25.390Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:25.390Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Leks are classic models for studies of sexual selection due to extreme variance in male reproductive success, but the relative influence of intrasexual competition and female mate choice in creating this skew is debatable. In the lekking lance-tailed manakin (Chiroxiphia lanceolata), these selective episodes are temporally separated into intrasexual competition for alpha status and female mate choice among alpha males that rarely interact. Variance in reproductive success between status classes of adult males (alpha versus non-alpha) can therefore be attributed to male-male competition whereas that within status largely reflects female mate choice. This provides an excellent opportunity for quantifying the relative contribution of each of these mechanisms of sexual selection to the overall opportunity for sexual selection on males (I males). To calculate variance in actual reproductive success, we assigned genetic paternity to 92.3% of 447 chicks sampled in seven years. Reproduction by non-alphas was rare and apparently reflected status misclassifications or opportunistic copulations en route to attaining alpha status rather than alternative mating strategies. On average 31% (range 7-44%, n=6 years) of the total I males was due to variance in reproductive success between alphas and non-alphas. Similarly, in a cohort of same-aged males followed for six years, 44-58% of the total I males was attributed to variance between males of different status. Thus, both intrasexual competition for status and female mate choice among lekking alpha males contribute substantially to the potential for sexual selection in this species.},\n bibtype = {article},\n author = {DuVal, Emily H and Kempenaers, Bart},\n doi = {10.1098/rspb.2008.0151},\n journal = {Proceedings. Biological sciences / The Royal Society},\n number = {May}\n}

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\n \n\n \n \n \n \n \n \n Social networks in the lek-mating wire-tailed manakin (Pipra filicauda).\n \n \n \n \n\n\n \n Ryder, T., B.; McDonald, D., B.; Blake, J., G.; Parker, P., G.; and Loiselle, B., A.\n\n\n \n\n\n\n Proceedings. Biological sciences / The Royal Society, 275(1641): 1367-74. 6 2008.\n \n\n\n\n
\n\n\n\n \n \n $\"Social$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Social networks in the lek-mating wire-tailed manakin (Pipra filicauda).},\n type = {article},\n year = {2008},\n keywords = {Animal,Animals,Behavior,Female,Logistic Models,Male,Passeriformes,Passeriformes: physiology,Paternity,Social Behavior},\n pages = {1367-74},\n volume = {275},\n websites = {http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=2602714&tool=pmcentrez&rendertype=abstract},\n month = {6},\n day = {22},\n id = {b7acd6d9-1863-386f-88a7-418fbbd5e541},\n created = {2018-04-22T22:19:26.862Z},\n accessed = {2014-04-28},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:26.862Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {How social structure interacts with individual behaviour and fitness remains understudied despite its potential importance to the evolution of cooperation. Recent applications of network theory to social behaviour advance our understanding of the role of social interactions in various contexts. Here we applied network theory to the social system of lek-mating wire-tailed manakins (Pipra filicauda, Pipridae, Aves). We analysed the network of interactions among males in order to begin building a comparative framework to understand where coordinated display behaviour lies along the continuum from solitary to obligately cooperative dual-male displays in the family Pipridae. Network degree (the number of links from a male to others) ranged from 1 to 10, with low mean and high variance, consistent with the theory for the evolution of cooperation within social networks. We also assessed factors that could predict social and reproductive success of males. Four network metrics, degree, eigenvector centrality, information centrality and reach, some of which assess circuitous as well as the shortest (geodesic) paths of male connectivity, predicted male social rise. The duration of a male's territorial tenure during the 4 years of the study predicted his probability of siring offspring.},\n bibtype = {article},\n author = {Ryder, Thomas B and McDonald, David B and Blake, John G and Parker, Patricia G and Loiselle, Bette A},\n doi = {10.1098/rspb.2008.0205},\n journal = {Proceedings. Biological sciences / The Royal Society},\n number = {1641}\n}

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\n \n\n \n \n \n \n \n Testosterone control of male courtship in birds.\n \n \n \n\n\n \n Fusani, L.\n\n\n \n\n\n\n Hormones and Behavior, 54(2): 227-233. 2008.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Testosterone control of male courtship in birds},\n type = {article},\n year = {2008},\n keywords = {Androgen,Avian,Bird,Courtship,Display,Sexual behavior,Sexual selection,Testosterone},\n pages = {227-233},\n volume = {54},\n id = {b9ed7696-ce89-33c0-86a1-dee8e860f7b0},\n created = {2018-04-22T22:19:27.708Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:27.708Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {A sequence of behaviours which we call courtship initiates reproduction in a large number of species. In vertebrates, as a component of male sexual behaviour courtship is strongly influenced by testicular androgen. Here I will review some salient issues about the regulation of courtship by testosterone in birds. The first section will briefly summarize the first 100??years of research on this topic. The specific role of testosterone or its oestrogenic metabolites in the control of different components of courtship will be the subject of the second section. Then, I will discuss how behavioural patterns can be recruited into courtship and modified in their structure by testosterone action. In the following section, the role of sexual selection and female choice in shaping the link between testosterone and courtship will be addressed. The problematic nature of the quantitative relationships between testosterone and behaviour will be topic of the fifth section. Finally, I will discuss how courtship traits that are activated by testosterone can be apparently independent of hormone blood concentrations. These issues will be examined in an evolutionary perspective, in an attempt to understand how natural and sexual selection have shaped the links between the hormone and the behaviour. ?? 2008 Elsevier Inc. All rights reserved.},\n bibtype = {article},\n author = {Fusani, Leonida},\n doi = {10.1016/j.yhbeh.2008.04.004},\n journal = {Hormones and Behavior},\n number = {2}\n}

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\n \n\n \n \n \n \n \n \n Partial migration in birds: tests of three hypotheses in a tropical lekking frugivore.\n \n \n \n \n\n\n \n Boyle, W., A.\n\n\n \n\n\n\n Journal of Animal Ecology, 77(6): 1122-1128. 11 2008.\n \n\n\n\n
\n\n\n\n \n \n $\"Partial$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Partial migration in birds: tests of three hypotheses in a tropical lekking frugivore},\n type = {article},\n year = {2008},\n keywords = {Altitudinal migration,Corapipo altera,Elevational gradient,Manakin,Physiological condition,Tropical forest},\n pages = {1122-1128},\n volume = {77},\n websites = {http://doi.wiley.com/10.1111/j.1365-2656.2008.01451.x},\n month = {11},\n id = {bd7e19fb-3377-3be8-a76a-e584fc8ce71d},\n created = {2019-03-13T14:19:06.230Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-03-13T14:19:06.230Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {1. Partially migratory species provide opportunities to understand which ecological factors cause some animals to migrate when others remain resident year round. Partial migration in birds has been explained by the dominance, arrival-time, and body-size hypotheses. 2. Testing these hypotheses has proven difficult due to the similarities of the predictions they make in temperate-breeding long-distance migrants. In tropical altitudinal migrants, however, these hypotheses make different predictions regarding the sex, age, and condition of migrants and residents. 3. Among white-ruffed manakins in Costa Rica, young birds were not more likely to migrate (as predicted by the dominance hypothesis), nor were females more likely to migrate (as predicted by the arrival-time hypothesis). All condition-related variables interacted with sex, together explaining much of the variation in migratory behaviour. 4. I re-articulate the body-size hypothesis in the context of tropical altitudinal bird migration, focusing explicitly on how limited foraging opportunities and differences in individual condition affect fasting ability during torrential rains. Despite ample food, the smallest birds or those stressed by parasites or moult may risk starvation at breeding elevations due to a reduction in foraging time. These results highlight how intrinsic and extrinsic factors may interact to produce observed patterns of within- and among-species variation in migratory behaviour.},\n bibtype = {article},\n author = {Boyle, W. Alice},\n doi = {10.1111/j.1365-2656.2008.01451.x},\n journal = {Journal of Animal Ecology},\n number = {6}\n}

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\n \n\n \n \n \n \n \n \n Manakin display and visiting behaviour: a comparative test of sensory drive.\n \n \n \n \n\n\n \n Anciães, M.; and Prum, R., O.\n\n\n \n\n\n\n Animal Behaviour, 75(3): 783-790. 3 2008.\n \n\n\n\n
\n\n\n\n \n \n $\"Manakin$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Manakin display and visiting behaviour: a comparative test of sensory drive},\n type = {article},\n year = {2008},\n keywords = {Pipridae,display behaviour,female visting rate,manakin,sensory drive},\n pages = {783-790},\n volume = {75},\n websites = {https://linkinghub.elsevier.com/retrieve/pii/S0003347207004150},\n month = {3},\n id = {61a52b64-c2c5-3112-a051-666628ab2f7e},\n created = {2019-06-11T14:30:56.662Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-05T12:41:40.362Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The conspicuousness of bird plumages may vary with the ambient light. Therefore, two behavioural predictions of the sensory drive hypothesis are that males should prefer to display and that females should prefer to visit males under specific ambient light conditions that enhance communication efficiency. Here we investigate patterns of male display and female attendance at male display sites under different ambient light conditions in a clade of five closely related species of manakins (Pipridae). Continuous focal observations and video recordings showed that in four of five species, the frequency of male display in different ambient light conditions correlated with their availability at their display sites, and that males showed no preference for displaying under specific ambient light conditions. But in Corapipo gutturalis, males showed a strong preference for displaying in shade and sunny gap environments. Females showed no preference for visiting male display sites under specific ambient light conditions, nor did they prefer males with the strongest ambient light display preferences. Male display and female visiting patterns for most of the manakin species studied were inconsistent with behavioural predictions of sensory drive. However, male C. gutturalis have evolved a preference for displaying in specific light conditions that is a derived behaviour novelty within the clade. As predicted by sensory drive, this behavioural novelty is phylogenetically congruent with a change in sensory environment: a decrease in the frequency of cloudy conditions at display sites. Behavioural and environmental novelties in C. gutturalis are not phylogenetically congruent with the evolution of the glossy, blue-black and white plumage in the ancestor of all Corapipo. Further tests of the sensory drive hypotheses are recommended, such as whether display sites are nonrandom samples of the sensory environment or whether male plumage colours are adapted for efficient signalling in specific ambient light conditions. © 2007.},\n bibtype = {article},\n author = {Anciães, Marina and Prum, Richard O.},\n doi = {10.1016/j.anbehav.2007.06.013},\n journal = {Animal Behaviour},\n number = {3}\n}

\n

\n\n\n

\n The conspicuousness of bird plumages may vary with the ambient light. Therefore, two behavioural predictions of the sensory drive hypothesis are that males should prefer to display and that females should prefer to visit males under specific ambient light conditions that enhance communication efficiency. Here we investigate patterns of male display and female attendance at male display sites under different ambient light conditions in a clade of five closely related species of manakins (Pipridae). Continuous focal observations and video recordings showed that in four of five species, the frequency of male display in different ambient light conditions correlated with their availability at their display sites, and that males showed no preference for displaying under specific ambient light conditions. But in Corapipo gutturalis, males showed a strong preference for displaying in shade and sunny gap environments. Females showed no preference for visiting male display sites under specific ambient light conditions, nor did they prefer males with the strongest ambient light display preferences. Male display and female visiting patterns for most of the manakin species studied were inconsistent with behavioural predictions of sensory drive. However, male C. gutturalis have evolved a preference for displaying in specific light conditions that is a derived behaviour novelty within the clade. As predicted by sensory drive, this behavioural novelty is phylogenetically congruent with a change in sensory environment: a decrease in the frequency of cloudy conditions at display sites. Behavioural and environmental novelties in C. gutturalis are not phylogenetically congruent with the evolution of the glossy, blue-black and white plumage in the ancestor of all Corapipo. Further tests of the sensory drive hypotheses are recommended, such as whether display sites are nonrandom samples of the sensory environment or whether male plumage colours are adapted for efficient signalling in specific ambient light conditions. © 2007.\n

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\n \n\n \n \n \n \n \n \n Maternal correlates of brood sex ratio variation in the lekking lance-tailed manakin Chiroxiphia lanceolata.\n \n \n \n \n\n\n \n Laucht, S.; DuVal, E., H.; and Kempenaers, B.\n\n\n \n\n\n\n Journal of Avian Biology, 39(2): 198-205. 3 2008.\n \n\n\n\n
\n\n\n\n \n \n $\"Maternal$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Maternal correlates of brood sex ratio variation in the lekking lance-tailed manakin Chiroxiphia lanceolata},\n type = {article},\n year = {2008},\n pages = {198-205},\n volume = {39},\n websites = {http://doi.wiley.com/10.1111/j.2008.0908-8857.04165.x},\n month = {3},\n id = {9265ef27-3810-3025-8a43-640dacf7cb6a},\n created = {2019-10-03T13:47:34.519Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-03T13:47:34.519Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Theory predicts that overall population sex ratios should be around parity. But when individual females can receive higher fitness from offspring of one sex, they may benefit by biasing their brood sex ratios accordingly. In lekking species, higher variance in male reproductive success relative to that of females predicts that male offspring gain disproportionately from favorable rearing conditions. Females should therefore produce male-biased broods when they are in a position to raise higher quality offspring: i.e., in better body condition or when they reproduce earlier in the breeding season. To investigate these hypotheses, we studied brood sex ratios of lance-tailed manakins Chiroxiphia lanceolata. We found that overall sex ratios and mean brood sex ratios were not different from random expectation. Brood sex ratios were not related to laying date or female body condition. However, we detected a quadratic relationship between brood sex ratios and maternal age: both young (1-2 years) and old (8+ years) females produced female-biased brood sex ratios. This relationship was most clear in a year also distinguished by early rainy and breeding seasons. We suggest that breeding inexperience in young females and senescence in older females is the most plausible explanation for these results, and that the relationship between female age and brood sex ratio is mediated by environmental conditions.},\n bibtype = {article},\n author = {Laucht, Silke and DuVal, Emily H. and Kempenaers, Bart},\n doi = {10.1111/j.2008.0908-8857.04165.x},\n journal = {Journal of Avian Biology},\n number = {2}\n}

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\n \n\n \n \n \n \n \n Advances in sexual selection theory: Insights from tropical avifauna.\n \n \n \n\n\n \n Duraes, R.; Ryder, T., B.; Anciaes, M.; Karubian, J.; Macedo, R., H.; Uy, J., A., C.; Parker, P., G.; Smith, T., B.; Stein, A., C.; Webster, M., S.; Blake, J., G.; Loiselle, B., A.; and Tori, W., P.\n\n\n \n\n\n\n Ornitologia Neotropical, 19: 151-163. 2008.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Advances in sexual selection theory: Insights from tropical avifauna},\n type = {article},\n year = {2008},\n pages = {151-163},\n volume = {19},\n id = {2ed8050f-c126-349a-b274-7a6371172c1f},\n created = {2019-10-15T16:49:32.852Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T16:59:48.863Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Duraes, Renata and Ryder, Thomas B and Anciaes, Marina and Karubian, Jordan and Macedo, Regina H and Uy, J Albert C and Parker, Patricia G and Smith, Thomas B and Stein, Adam C and Webster, Michael S and Blake, John G and Loiselle, Bette A and Tori, Wendy P},\n journal = {Ornitologia Neotropical}\n}

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\n \n 2007\n \n \n (13)\n \n \n

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\n \n\n \n \n \n \n \n \n Testosterone and its effects on courtship in golden-collared manakins (Manacus vitellinus): Seasonal, sex, and age differences.\n \n \n \n \n\n\n \n Day, L., B.; Fusani, L.; Hernandez, E.; Billo, T., J.; Sheldon, K., S.; Wise, P., M.; and Schlinger, B., A.\n\n\n \n\n\n\n Hormones and Behavior, 51(1): 69-76. 2007.\n \n\n\n\n
\n\n\n\n \n \n $\"Testosterone$ Paper\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Testosterone and its effects on courtship in golden-collared manakins (Manacus vitellinus): Seasonal, sex, and age differences},\n type = {article},\n year = {2007},\n keywords = {Courtship,Display,Manakins,Seasonal,Testosterone,Tropical},\n pages = {69-76},\n volume = {51},\n id = {4453594d-e2f6-3161-8ca2-cde15debf580},\n created = {2016-08-23T22:19:00.000Z},\n file_attached = {true},\n profile_id = {d132db1b-8e9a-3336-8a73-fcc7f47f1a66},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.669Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Male golden-collared manakins gather on leks and perform an acrobatic display to attract females. In temperate breeding species, testosterone (T) activation of courtship displays has been well studied. Few studies have examined T activation of displays in tropical species; even fewer have explored the activational role of T in elaborate courtship displays such as in the manakin. In some tropical species, including manakins, territorial aggression or song behavior are uncoupled from T. We have previously shown that T activates display behavior in manakin males when endogenous T levels are low in the non-courtship season. To understand how T functions in breeding birds, we examined T levels in a large group of manakins sampled during the courtship and non-courtship season. In addition, during the courtship season, we gave T implants to adult males, juvenile males, and females. We found that T levels were low during the non-courtship season and comparatively higher on average during the courtship season. However, T levels were low in many adult males during the courtship season, especially when compared to temperate breeding species. Regardless of initial endogenous T levels during the courtship season, T implants did not increase the display frequency of adult males. T-treated females and juvenile males did display under similar conditions. Our data suggest that the effects of T on manakin display vary with season, sex, and age and that high T is not necessary for display. © 2006 Elsevier Inc. All rights reserved.},\n bibtype = {article},\n author = {Day, Lainy B. and Fusani, Leonida and Hernandez, Estefanía and Billo, Timothy J. and Sheldon, Kimberly S. and Wise, Petra M. and Schlinger, Barney A.},\n doi = {10.1016/j.yhbeh.2006.08.006},\n journal = {Hormones and Behavior},\n number = {1}\n}

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\n \n\n \n \n \n \n \n \n Androgen and the elaborate courtship behavior of a tropical lekking bird.\n \n \n \n \n\n\n \n Fusani, L.; Day, L., B.; Canoine, V.; Reinemann, D.; Hernandez, E.; and Schlinger, B., A.\n\n\n \n\n\n\n Hormones and Behavior, 51(1): 62-68. 2007.\n \n\n\n\n
\n\n\n\n \n \n $\"Androgen$ Paper\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Androgen and the elaborate courtship behavior of a tropical lekking bird},\n type = {article},\n year = {2007},\n keywords = {Androgen,Courtship,Flutamide,Lek,Sexual behavior,Testosterone},\n pages = {62-68},\n volume = {51},\n id = {b52225f1-130a-33c2-9103-36756b0c8266},\n created = {2016-08-23T22:28:22.000Z},\n file_attached = {true},\n profile_id = {d132db1b-8e9a-3336-8a73-fcc7f47f1a66},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.762Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {In most bird species, male courtship behavior is controlled by testosterone (T) and its metabolites. In species breeding in temperate and arctic regions T circulates at high levels during a relatively short courtship period because high levels of T can be costly in terms of immunocompetence and parental care. Few studies have investigated androgen modulation of courtship behavior in tropical birds. Male golden-collared manakins (Manacus vitellinus) aggregate in leks for several months and perform spectacular, acrobatic courtship displays. Here we examined whether T is elevated in golden-collared manakins during the displaying period and if courtship behavior is modulated by androgen action on androgen receptors. We measured T levels in displaying males at the beginning of the breeding season and again, one month later. In addition, both wild and captive males were treated with the anti-androgen, flutamide, and their courtship behavior was recorded for several weeks. T levels were relatively high shortly after leks were established but decreased substantially a month later, even though the amount of courtship did not change. Flutamide reduced male courtship activity for one week, but display behavior then increased after two weeks of flutamide treatment. Our studies show that androgens modulate male manakin courtship, but the amount of courtship is not directly correlated with the concentration of circulating T. These results suggest that the relationships between androgen and courtship might differ between tropical and temperate birds. © 2006 Elsevier Inc. All rights reserved.},\n bibtype = {article},\n author = {Fusani, Leonida and Day, Lainy B. and Canoine, Virginie and Reinemann, Dan and Hernandez, Estefanía and Schlinger, Barney A.},\n doi = {10.1016/j.yhbeh.2006.08.005},\n journal = {Hormones and Behavior},\n number = {1}\n}

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\n \n\n \n \n \n \n \n Kin selection does not explain male aggregation at leks of 4 manakin species.\n \n \n \n\n\n \n Loiselle, B., A.; Ryder, T., B.; Durães, R.; Tori, W.; Blake, J., G.; and Parker, P., G.\n\n\n \n\n\n\n Behavioral Ecology, 18(2): 287-291. 2007.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Kin selection does not explain male aggregation at leks of 4 manakin species},\n type = {article},\n year = {2007},\n keywords = {Genetic relatedness,Kin selection,Lek breeding,Manakin,Pipridae},\n pages = {287-291},\n volume = {18},\n id = {48188a59-ee2a-37e1-ba76-0baf9ecf8b67},\n created = {2016-10-25T13:36:13.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T01:12:09.131Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {In lek-mating systems, males aggregate at display arenas and females visit solely for the purpose of mating. This breeding system is characterized by high variance in male mating success with one male often receiving most copulations. High reproductive skew among males has led to question why males join leks when their chances of reproductive success are so low. Kin selection has been invoked as a mechanism to explain the evolution of lekking behavior, whereby nonreproducing but genetically related males gain indirect inclusive-fitness benefits. Evidence for kin selection among lek-mating birds is, however, mixed. Here, we show that kin selection is unlikely to be an important explanation for evolution of lekking behavior in manakins (Aves: Pipridae). We found that for 4 species chosen from several major clades within Pipridae, males within leks were not significantly more related than expected from random assortment of males in the population. This means that nonreproducing males do not gain indirect inclusive-fitness benefits by joining leks. This result suggests alternative mechanisms must be invoked to explain the evolution of lek-mating systems in manakins. © The Author 2006. Published by Oxford University Press on behalf of the International Society for Behavioral Ecology. All rights reserved.},\n bibtype = {article},\n author = {Loiselle, Bette A. and Ryder, Thomas B. and Durães, Renata and Tori, Wendy and Blake, John G. and Parker, Patricia G.},\n doi = {10.1093/beheco/arl081},\n journal = {Behavioral Ecology},\n number = {2}\n}

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\n \n\n \n \n \n \n \n Environmental and spatial segregation of leks among six co-occurring species of manakins (Pipridae) in eastern Ecuador.\n \n \n \n\n\n \n Loiselle, B., A.; Blake, J., G.; Durães, R.; Brandt Ryder, T.; and Tori, W.\n\n\n \n\n\n\n Auk, 124(2): 420-431. 2007.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Environmental and spatial segregation of leks among six co-occurring species of manakins (Pipridae) in eastern Ecuador},\n type = {article},\n year = {2007},\n keywords = {Behavior and ecology,Habitat selection,Lek mating system,Manakins,Tropical wet forest},\n pages = {420-431},\n volume = {124},\n id = {fc72b015-be94-334f-aa1f-66a0ebe34f71},\n created = {2016-10-25T13:36:14.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T01:19:34.392Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Environmental correlates and geographic spacing of leks were compared for six species of manakins (Pipridae) on two 100-ha study plots in eastern Ecuador. The "hotspot" hypothesis of lek evolution suggests that males should aggregate where females are most likely to be encountered. For ecologically similar species that co-occur at a site, leks are predicted to be clustered in space and, thus, to overlap in macroscale environmental characteristics. The geographic spacing and environmental characteristics of lek sites we observed were inconsistent with the hotspot hypothesis for lek evolution. In general, little geographic overlap occurred among leks, and geographic spacing of leks among heterospecifics more closely fit a regular than a clumped pattern. Further, environmental conditions of leks varied among species with respect to elevation and topography. Leks of some species were more likely to occur on hilltops or ridge tops (e.g., Machaeropterus regulus, Pipra erythrocephala), whereas others appeared to prefer highly dissected drainages (e.g., P. pipra), relatively flat terrain near streams (e.g., Chiroxiphia pareola), or seasonally inundated forests (e.g., P. filicauda). Using randomly placed leks, we found evidence that certain lek environments may be limited, which is consistent with observed levels of population abundances on the two plots. Such environmental limits may constrain lek placement and size. Further study is needed to determine the reproductive implications of placing leks in apparently suboptimal environments, though such compromises may reflect males making the best of a bad situation. © The American Ornithologists' Union, 2007.},\n bibtype = {article},\n author = {Loiselle, Bette A. and Blake, John G. and Durães, Renata and Brandt Ryder, T. and Tori, Wendy},\n doi = {10.1642/0004-8038(2007)124[420:EASSOL]2.0.CO;2},\n journal = {Auk},\n number = {2}\n}

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\n \n\n \n \n \n \n \n Ecological redundancy in seed dispersal systems: A comparison between manakins (Aves: Pipridae) in two tropical forests.\n \n \n \n\n\n \n Loiselle, B., A.; Blendinger, P., G.; Blake, J., G.; and Ryder, T., B.\n\n\n \n\n\n\n Seed Dispersal: Theory and its Application in a Changing World, pages 178-195. 2007.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@inbook{\n type = {inbook},\n year = {2007},\n pages = {178-195},\n id = {eb1d4208-dfdb-3d45-89b8-1d97e6cb351b},\n created = {2016-10-25T13:36:14.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.204Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n bibtype = {inbook},\n author = {Loiselle, Bette A. and Blendinger, Pedro G. and Blake, John G. and Ryder, Thomas B.},\n doi = {10.1079/9781845931650.0178},\n chapter = {Ecological redundancy in seed dispersal systems: A comparison between manakins (Aves: Pipridae) in two tropical forests},\n title = {Seed Dispersal: Theory and its Application in a Changing World}\n}

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\n \n\n \n \n \n \n \n Intersexual spatial relationships in a lekking species: Blue-crowned manakins and female hot spots.\n \n \n \n\n\n \n Durães, R.; Loiselle, B., A.; and Blake, J., G.\n\n\n \n\n\n\n Behavioral Ecology, 18(6): 1029-1039. 2007.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Intersexual spatial relationships in a lekking species: Blue-crowned manakins and female hot spots},\n type = {article},\n year = {2007},\n keywords = {Amazon,Blue-crowned manakin,Ecuador,Female spatial distribution,Habitat selection,Hot-spot hypothesis,Lek,Lepidothrix coronata,Pipridae},\n pages = {1029-1039},\n volume = {18},\n id = {cd56bbcc-5085-37c1-883c-a691dbde8c47},\n created = {2016-10-25T13:36:14.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.484Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Leks offer an intriguing evolutionary problem: why do males aggregate when this apparently leads to fitness costs? Aggregation costs can be balanced if males settle on patches where they are more likely to encounter females (hot-spot hypothesis). We evaluated whether female hot spots can account for patterns of lek structure in the blue-crowned manakin (Lepidothrix coronata) by modeling female distribution patterns relative to lek locations in two 100-ha plots. Individual females were mapped based on nest locations and capture points and had their home ranges (HRs) modeled based on radiotelemetry data. The number of females that lekking males can be expected to encounter was estimated as the number of individual female HRs overlapping each male territory; hot spots were defined as patches where more females are found than average. We investigated how changes in female HR size and devaluation effects (decrease in female availability due to the presence of neighboring males) influence male access to females. Both factors strongly influenced the expected rates of female encounter, but the hot-spot hypothesis was not supported: most male territories consistently overlapped fewer or just as many female HRs as expected by chance. Leks were not closer to hot spots than similar-sized nonlek sites. A proportion of males were, indeed, settled at hot spots, but, contrary to predictions of the hot-spot hypothesis, they belonged to smaller leks than males located outside hot spots. Our results indicate that this lack of spatial correlation between males and females results partly from differences in sex-specific habitat preferences. © The Author 2007. Published by Oxford University Press on behalf of the International Society for Behavioral Ecology. All rights reserved.},\n bibtype = {article},\n author = {Durães, Renata and Loiselle, Bette A. and Blake, John G.},\n doi = {10.1093/beheco/arm072},\n journal = {Behavioral Ecology},\n number = {6}\n}

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\n \n\n \n \n \n \n \n Predicting fate from early connectivity in a social network.\n \n \n \n\n\n \n McDonald, D., B.\n\n\n \n\n\n\n Proceedings of the National Academy of Sciences of the United States of America, 104(26): 10910-10914. 2007.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Predicting fate from early connectivity in a social network.},\n type = {article},\n year = {2007},\n pages = {10910-10914},\n volume = {104},\n id = {b8d24eb7-fa3d-3b62-be68-454e42e07f4f},\n created = {2018-04-22T22:19:22.899Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:22.899Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {In the long-tailed manakin (Chiroxiphia linearis), a long-lived tropical bird, early connectivity within a social network predicts male success an average of 4.8 years later. Long-tailed manakins have an unusual lek mating system in which pairs of unrelated males, at the top of complex overlapping teams of as many as 15 males, cooperate for obligate dual-male song and dance courtship displays. For as long as 8 years before forming stable "alpha-beta" partnerships, males interact with many other males in complex, temporally dynamic social networks. "Information centrality" is a network connectivity metric that accounts for indirect as well as shortest (geodesic) paths among interactors. The odds that males would rise socially rose by a factor of five for each one-unit increase in their early information centrality. Connectivity of males destined to rise did not change over time but increased in males that failed to rise socially. The results suggest that network connectivity is important for young males (ages 1-6) but less so for older males of high status (ages 10-15) and that it is difficult to explain present success without reference to social history.},\n bibtype = {article},\n author = {McDonald, David B},\n doi = {10.1073/pnas.0701159104},\n journal = {Proceedings of the National Academy of Sciences of the United States of America},\n number = {26}\n}

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\n \n\n \n \n \n \n \n High-speed video analysis reveals individual variability in the courtship displays of male Golden-collared manakins.\n \n \n \n\n\n \n Fusani, L.; Giordano, M.; Day, L., B.; and Schlinger, B., A.\n\n\n \n\n\n\n Ethology, 113(10): 964-972. 2007.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {High-speed video analysis reveals individual variability in the courtship displays of male Golden-collared manakins},\n type = {article},\n year = {2007},\n pages = {964-972},\n volume = {113},\n id = {ba695c14-7569-370b-b9f6-d67fbed6f5e2},\n created = {2018-04-22T22:19:22.958Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:22.958Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The males of the Golden-collared manakin (Manacus vitellinus), a passerine bird of the Neotropical region, perform elaborate courtship displays that are among the most spectacular in the animal kingdom. During a 7-mo long breeding season, male manakins aggregate in leks of up to 12 individuals, and each male clears a small 'court' on the forest floor where he spends several hours per day performing his displays either with or without the presence of a female. Like males of other manakin species, males of M. vitellinus produce loud mechanical sounds with their wings during the displays. The elaborate displays of the manakins are thought to be the result of sexual selection, which is particularly intense in lekking species in which females choose their mate mainly on the basis of behavioural and morphological features. However, we know little about differences in display between male manakins which may be related to individual differences in reproductive success. A quantitative, detailed analysis of the courtship displays has been difficult because the birds' movements are too fast to be studied with standard video recording techniques. For the first time, we recorded the displays of male Golden-collared manakins in the forest of Panama with a high-speed camera that allows a time resolution 5-40 times higher than that of a standard video camera. We found that several elements of the displays differed significantly between individuals. In addition, the slow-motion analysis revealed the features of the displays that had not been described in previous studies. Individually different features of the displays may form the basis for female choice and will allow testing hypotheses about the evolution of the manakin displays by sexual selection and their importance for speciation mechanisms in the genus Manacus.},\n bibtype = {article},\n author = {Fusani, Leonida and Giordano, Marta and Day, Lainy B. and Schlinger, Barney A.},\n doi = {10.1111/j.1439-0310.2007.01395.x},\n journal = {Ethology},\n number = {10}\n}

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\n \n\n \n \n \n \n \n \n Adaptive Advantages of Cooperative Courtship for Subordinate Male Lance‐Tailed Manakins.\n \n \n \n \n\n\n \n DuVal, E., H.\n\n\n \n\n\n\n The American Naturalist, 169(4): 423-432. 4 2007.\n \n\n\n\n
\n\n\n\n \n \n $\"Adaptive$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Adaptive Advantages of Cooperative Courtship for Subordinate Male Lance‐Tailed Manakins},\n type = {article},\n year = {2007},\n keywords = {Adaptation,Animal,Animal: physiology,Animals,Biological,Biological: physiology,Cooperative Behavior,Fertility,Fertility: physiology,Genetic,Genotype,Hierarchy,Male,Microsatellite Repeats,Microsatellite Repeats: genetics,Panama,Passeriformes,Passeriformes: genetics,Passeriformes: physiology,Selection,Sexual Behavior,Social},\n pages = {423-432},\n volume = {169},\n websites = {http://www.ncbi.nlm.nih.gov/pubmed/17427119,https://www.journals.uchicago.edu/doi/10.1086/512137},\n month = {4},\n id = {9625706e-8316-3a05-ae7e-6c7104bb3446},\n created = {2018-04-22T22:19:25.890Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-02T01:11:29.230Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Male lance-tailed manakins (Chiroxiphia lanceolata) cooperate in complex courtship displays, but the dominant (alpha) partner monopolizes mating opportunities. This raises the question of why subordinates (betas) cooperate. Three nonexclusive hypotheses explain the adaptive basis of helping behavior by subordinate males: cooperation may increase (1) subordinates' immediate reproductive success, (2) the reproductive success of close relatives, or (3) subordinates' chances of future reproduction. I demonstrated that beta males rarely sired chicks and were unrelated to their alpha partners but received delayed direct benefits from cooperation; betas had an increased probability of becoming an alpha when compared to males that had not been betas. To investigate the mechanism by which betas attain these adaptive benefits, I examined betas' success in replacing their alpha partners both in natural turnover events and when alphas were experimentally removed. Beta males did not consistently inherit alpha roles in the same territories where they served their beta tenure, arguing that queuing for status does not fully explain the benefits of cooperation for betas. Instead, betas may be apprenticing to develop effective and appropriate displays that enhance their subsequent success as alphas. Complex social affiliations appear to mediate selective pressure for cooperation in this species.},\n bibtype = {article},\n author = {DuVal, Emily H.},\n doi = {10.1086/512137},\n journal = {The American Naturalist},\n number = {4}\n}

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\n \n\n \n \n \n \n \n Isolation and characterization of novel microsatellite loci for parentage assessment in the lance-tailed manakin (Chiroxiphia lanceolata).\n \n \n \n\n\n \n Duval, E., H.; Carter, K., L.; and Kempenaers, B.\n\n\n \n\n\n\n Molecular Ecology Notes, 7(6): 1111-1113. 2007.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Isolation and characterization of novel microsatellite loci for parentage assessment in the lance-tailed manakin (Chiroxiphia lanceolata)},\n type = {article},\n year = {2007},\n keywords = {Chiroxiphia lanceolata,Cooperation,Lance-tailed manakin,Microsatellite,Paternity,Relatedness},\n pages = {1111-1113},\n volume = {7},\n id = {52076924-0317-3197-bd4b-0c8557a8e6c3},\n created = {2019-10-03T13:47:34.529Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-03T13:47:34.529Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The lance-tailed manakin (Chiroxiphia lanceolata) is a lek-breeding bird from Central America in which males court females with complex cooperative displays. To resolve detailed patterns of paternity in the wild, we isolated and characterized 12 novel microsatellite loci in this species. Eleven of these loci were polymorphic (five to 14 alleles), with observed heterozygosities ranging from 0.36 to 0.87 (N = 574 individuals). We tested for linkage disequilibrium using randomized subsamples of adults to control for known family structure among long-lived and sedentary individuals. These loci will be valuable in resolving paternity among many candidate fathers in this species.},\n bibtype = {article},\n author = {Duval, Emily H. and Carter, Kim L. and Kempenaers, Bart},\n doi = {10.1111/j.1471-8286.2007.01795.x},\n journal = {Molecular Ecology Notes},\n number = {6}\n}

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\n \n\n \n \n \n \n \n \n Social organization and variation in cooperative alliances among male lance-tailed manakins.\n \n \n \n \n\n\n \n DuVal, E., H.\n\n\n \n\n\n\n Animal Behaviour, 73(3): 391-401. 3 2007.\n \n\n\n\n
\n\n\n\n \n \n $\"Social$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Social organization and variation in cooperative alliances among male lance-tailed manakins},\n type = {article},\n year = {2007},\n keywords = {Chiroxiphia lanceolata,alliance,cooperation,courtship display,lance-tailed manakin},\n pages = {391-401},\n volume = {73},\n websites = {https://linkinghub.elsevier.com/retrieve/pii/S0003347206004301},\n month = {3},\n id = {7299045e-29fe-3370-9872-3ffa1207a551},\n created = {2019-10-03T13:47:35.082Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-03T13:47:35.082Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {In species where males form cooperative alliances for the purposes of reproduction, there may be considerable variation in the strength and size of alliances observed within one population. Male lance-tailed manakins, Chiroxiphia lanceolata, form long-term cooperative alliances to court females on group-occupied display areas. I investigated male status and alliance structure in a colour-banded population. Each display area was a group territory attended by multiple adult and subadult males. Alpha males were present at display areas more often than other males, performed solo courtship displays for females, and vocalized distinctively in paired displays. Alpha-beta pairs had high duetting association index values and performed two types of paired courtship displays for females. I combined these characteristics in a predictive logistic regression model to assess male status probabilistically when not all key behaviours were observed. Typically, one alpha and one beta male occupied each display area, but males also formed multiple alliances (one alpha paired with multiple high-ranking subordinates) or were solitary, with no distinct alliances. Both alliances and solitary alphas attracted females for courtship displays. Alphas were generally older than their beta partners, but age did not absolutely predict status. Individual alpha males were involved in different alliance types in different years, showing that alliance variation is not the result of fixed differences in individual strategies. Instead, variation apparently results from changing opportunities for partnership formation and territory acquisition. © 2006 The Association for the Study of Animal Behaviour.},\n bibtype = {article},\n author = {DuVal, Emily H.},\n doi = {10.1016/j.anbehav.2006.05.017},\n journal = {Animal Behaviour},\n number = {3}\n}

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\n \n\n \n \n \n \n \n \n Plumage carotenoids of the Pin-tailed Manakin (Ilicura militaris): Evidence for the endogenous production of rhodoxanthin from a colour variant.\n \n \n \n \n\n\n \n Hudon, J.; Anciães, M.; Bertacche, V.; and Stradi, R.\n\n\n \n\n\n\n Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 147(3): 402-411. 7 2007.\n \n\n\n\n
\n\n\n\n \n \n $\"Plumage$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Plumage carotenoids of the Pin-tailed Manakin (Ilicura militaris): Evidence for the endogenous production of rhodoxanthin from a colour variant},\n type = {article},\n year = {2007},\n keywords = {Carotenoids,Colour variant,Golden-winged Manakin,Ilicura militaris,Pin-tailed Manakin,Rhodoxanthin,Rock Pigeon},\n pages = {402-411},\n volume = {147},\n websites = {https://linkinghub.elsevier.com/retrieve/pii/S1096495907000966},\n month = {7},\n id = {7a0c1873-bd5f-30d8-9e24-5e15e34b0271},\n created = {2019-10-15T16:49:32.480Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T01:19:34.629Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The Pin-tailed Manakin (Ilicura militaris) is a small, sexually dimorphic, frugivorous suboscine songbird (Pipridae; Passeriformes; Aves) endemic to the Atlantic Forest of Brazil. A variant individual of this species was recently described in which the red patches that characterise the male's Definitive plumage were replaced by orange-yellow ones. We show here that the pigments in the feathers of the colour variant are common dietary carotenoids (zeaxanthin, β-cryptoxanthin), not carotenoids synthesised by birds, lending support to the suggestion that the individual is a colour mutant lacking the capability to transform yellow dietary pigments into the red pigments normally present in these feathers. By comparison, the yellow crown feathers of a close relative, the Golden-winged Manakin (Masius chrysopterus), contained predominantly endogenously produced ε-caroten-3′-ones. Surprisingly, the normal-coloured feathers of the male Pin-tailed Manakin owe their red hue to rhodoxanthin, an unusual carotenoid more commonly found in plants, rather than 4-keto-carotenoids typically found in red plumages and found lacking in previously characterised bird colour variants. The implication is that birds, like the tilapia fish, may be able to synthesise this unusual pigment endogenously from dietary precursors. A newly described carotenoid, 6-hydroxy-ε,ε-carotene-3,3′-dione, here named piprixanthin, present in the red feathers of the Pin-tailed Manakin, provides a plausible intermediate between ε,ε-carotene-3,3′-dione (canary-xanthophyll B), a bright yellow pigment found in this and other songbirds, and rhodoxanthin. It is apparent that pigeons (Columbidae, Columbiformes) also have the capability to produce rhodoxanthin, and a structurally related pigment, endogenously. The ability to synthesise rhodoxanthin might have arisen at least twice in birds. © 2007 Elsevier Inc. All rights reserved.},\n bibtype = {article},\n author = {Hudon, Jocelyn and Anciães, Marina and Bertacche, Vittorio and Stradi, Riccardo},\n doi = {10.1016/j.cbpb.2007.02.004},\n journal = {Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology},\n number = {3}\n}

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\n \n\n \n \n \n \n \n Biologia da nidificação de aves do sudeste de Minas Gerais, Brasil.\n \n \n \n\n\n \n Marini, M., Â.; Aguilar, T., M.; Andrade, R., D.; Leite, L., O.; Anciães, M.; Carvalho, C., E., A.; Duca, C.; Maldonado-Coelho, M.; Sebaio, F.; and Gonçalves, J.\n\n\n \n\n\n\n Revista Brasileira de Ornitologia, 15(3): 367-376. 2007.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Biologia da nidificação de aves do sudeste de Minas Gerais, Brasil},\n type = {article},\n year = {2007},\n keywords = {Atlantic forest,Eggs,Forest,Nests},\n pages = {367-376},\n volume = {15},\n id = {729826f2-c1a1-3c8d-9ea8-5bee4397de93},\n created = {2019-10-15T16:59:46.605Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T16:59:46.605Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Relatamos aspectos da biologia da nidificação, em especial, características dos ninhos, ovos, época de nidificação, ocorrência de placas de incubação e comportamento reprodutivo, principalmente de aves de florestas dos Municípios de Belo Horizonte, Nova Lima e Ibirité, Minas Gerais. Durante as estações reprodutivas de 1995 a 2000 estudamos 108 ninhos de 34 espécies de aves, cujas características são descritas e comparadas com a literatura.},\n bibtype = {article},\n author = {Marini, Miguel Ângelo and Aguilar, Thaís Maya and Andrade, Renata Dornelas and Leite, Lemuel Olívio and Anciães, Marina and Carvalho, Carlos Eduardo Alencar and Duca, Charles and Maldonado-Coelho, Marcos and Sebaio, Fabiane and Gonçalves, Juliana},\n journal = {Revista Brasileira de Ornitologia},\n number = {3}\n}

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\n \n 2006\n \n \n (6)\n \n \n

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\n \n\n \n \n \n \n \n \n Testosterone increases display behaviors but does not stimulate growth of adult plumage in male golden-collared manakins (Manacus vitellinus).\n \n \n \n \n\n\n \n Day, L., B.; McBroom, J., T.; and Schlinger, B., A.\n\n\n \n\n\n\n Hormones and Behavior, 49(2): 223-232. 2006.\n \n\n\n\n
\n\n\n\n \n \n $\"Testosterone$ Paper\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Testosterone increases display behaviors but does not stimulate growth of adult plumage in male golden-collared manakins (Manacus vitellinus)},\n type = {article},\n year = {2006},\n keywords = {Birds,Courtship display,Lek,Manacus,Manakins,Plumage,Testosterone},\n pages = {223-232},\n volume = {49},\n id = {3fc12c14-4986-3877-b6f1-30ffa13740f7},\n created = {2016-08-23T22:19:01.000Z},\n file_attached = {true},\n profile_id = {d132db1b-8e9a-3336-8a73-fcc7f47f1a66},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.936Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {In order to attract females, male golden-collared manakins gather in leks and perform a complex display consisting of acrobatics accompanied by loud "wingsnapping". During this display, males show off their yellow beard and yellow, black, and green plumage that is striking in comparison to the dull green plumage of young males and females. We investigated the role of testosterone (T) in activating the display of manakins and in stimulating the growth of the adult male plumage. T regulates song, copulation, and territorial aggression in temperate species. In tropical species, however, T levels can be relatively low year round, which has raised questions about the involvement of T in courtship display and male aggression in these species. In neither temperate nor tropical species has the role of hormones in the shift from juvenile to adult plumage been well studied. Therefore, we implanted green-plumaged birds and adult males with either a T pellet or an inert pellet (controls) and observed the display behaviors of these birds in the field and in captivity. In captive birds, we also plucked feathers from sexually dimorphic regions and observed color and regeneration rate of new feathers. We found that birds implanted with T increased several display behaviors compared to controls. All plucked feathers grew back the same color as prior to treatment; however, we observed some differences in feather growth rate between T-treated birds and controls. © 2005 Elsevier Inc. All rights reserved.},\n bibtype = {article},\n author = {Day, Lainy B. and McBroom, Jennifer T. and Schlinger, Barney A.},\n doi = {10.1016/j.yhbeh.2005.07.006},\n journal = {Hormones and Behavior},\n number = {2}\n}

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\n \n\n \n \n \n \n \n Obtaining offspring genetic material: A new method for species with high nest predation rates.\n \n \n \n\n\n \n Tori, W., P.; Ryder, T., B.; Durães, R.; Hidalgo, J., R.; Loiselle, B., A.; and Blake, J., G.\n\n\n \n\n\n\n Condor, 108(4): 948-952. 2006.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Obtaining offspring genetic material: A new method for species with high nest predation rates},\n type = {article},\n year = {2006},\n keywords = {Ex situ incubation,Manakin,Nest predation,Pipridae,Plaster eggs},\n pages = {948-952},\n volume = {108},\n id = {c62741e3-e098-3216-9f36-37ea9c07b53a},\n created = {2016-10-25T13:36:13.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:23.946Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Over the past decade, the field of molecular genetics has revolutionized our understanding of avian mating systems, by demonstrating that social bonds might not accurately reflect parentage because of unknown levels of cryptic mating (e.g., extra-pair copulations). Use of molecular genetics tools for paternity analysis requires genetic material from putative parents and nestlings. Unfortunately, high nest predation rates often preclude detailed genetic studies of tropical taxa. Here, we describe a nondestructive method that increases the efficiency of obtaining genetic material from offspring for a group of tropical passerines (Pipridae). The method entails replacing eggs with plaster replicas, incubating eggs artificially, and returning hatchlings to their original nests for further development. This method greatly improved our ability to sample offspring, as we collected genetic material from 100% of manipulated nests, compared to 52% of unmanipulated nests. © The Cooper Ornithological Society 2006.},\n bibtype = {article},\n author = {Tori, Wendy P. and Ryder, Thomas B. and Durães, Renata and Hidalgo, José R. and Loiselle, Bette A. and Blake, John G.},\n doi = {10.1650/0010-5422(2006)108[948:OOGMAN]2.0.CO;2},\n journal = {Condor},\n number = {4}\n}

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\n \n\n \n \n \n \n \n \n Plumage brightness predicts male mating success in the lekking golden-collared manakin, Manacus vitellinus.\n \n \n \n \n\n\n \n Stein, A., C.; and Uy, J., A., C.\n\n\n \n\n\n\n Behavioral Ecology, 17(1): 41-47. 1 2006.\n \n\n\n\n
\n\n\n\n \n \n $\"Plumage$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Plumage brightness predicts male mating success in the lekking golden-collared manakin, Manacus vitellinus},\n type = {article},\n year = {2006},\n keywords = {Manacus,leks,manakins,plumage,sexual selection,visual,visual signal},\n pages = {41-47},\n volume = {17},\n websites = {http://www.beheco.oxfordjournals.org/cgi/doi/10.1093/beheco/ari095,http://academic.oup.com/beheco/article/17/1/41/266852/Plumage-brightness-predicts-male-mating-success-in},\n month = {1},\n day = {1},\n id = {5a2a0da9-c0ec-3f92-83e6-9b5c3fcd79cf},\n created = {2018-04-22T22:19:23.184Z},\n accessed = {2014-11-18},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T01:12:09.124Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Stein, Adam C. and Uy, J. Albert C.},\n doi = {10.1093/beheco/ari095},\n journal = {Behavioral Ecology},\n number = {1}\n}

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\n \n\n \n \n \n \n \n Unidirectional introgression of a sexually selected trait across an avian hybrid zone: a role for female choice?.\n \n \n \n\n\n \n Stein, A., C.; and Uy, J., A., C.\n\n\n \n\n\n\n Evolution; international journal of organic evolution, 60(7): 1476-1485. 2006.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Unidirectional introgression of a sexually selected trait across an avian hybrid zone: a role for female choice?},\n type = {article},\n year = {2006},\n keywords = {2005,2006,accepted may 1,hybrid zones,manacus,manakins,plumage,received october 13,sexual selection,unidirectional introgression},\n pages = {1476-1485},\n volume = {60},\n id = {158de17a-9ac5-3fea-a78c-7548e9358ccb},\n created = {2018-04-22T22:19:23.815Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:23.815Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Hybridization can be an evolutionary creative force by forming new polyploid species, creating novel genetic variation or acting as conduits of potentially advantageous traits between hybridizing forms. Evidence for the latter is often difficult to find because alleles under positive selection can spread rapidly across a hybrid zone and sweep to fixation. In Western Panama, an avian hybrid zone between two species of manakins in the genus Manacus exists where the unidirectional introgression of bright, yellow plumage into a white population provides evidence for the importance of hybrid zones as conduits of advantageous traits. Several lines of indirect evidence suggest that sexual selection favoring yellow plumage drives this asymmetrical spread, but more direct evidence is lacking. Along the edge of the hybrid zone, both yellow- and white-collared manakins are found in the same mating arenas or leks and compete for the same females ("mixed leks"), providing us with a unique opportunity to understand the dynamics of yellow plumage introgression. We studied these mixed leks to determine whether yellow males have a mating advantage over white males and, if so, whether the mating advantage is driven by male-male interactions, female choice, or both. We found that yellow males mated more than white males, suggesting that sexual selection favoring yellow males can, indeed, explain the spread of yellow plumage. However, we found that this advantage occurred only in mixed leks where the frequency of yellow males is greater than white males. This suggests that the advantage of yellow males may depend on the presence of other yellow males, which may slow the rate of introgression in leks where yellow frequency is low such as in areas where yellow males are beginning to colonize the white population. This, along with the geographic barrier posed by major rivers in the hybrid zone, may initially limit or slow the spread of yellow plumage. Finally, we found that yellow and white males were similar in aggression and body size, and held comparable positions within leks. Because these traits or factors are often important in or dictated by aggressive male-male interactions, these comparisons indicate that male-male interaction is not the primary mechanism for the spread of yellow plumage. However, white and yellow males received similar numbers of courtship visits from females but differed in the number of matings, suggesting that females actively rejected white in favor of yellow males. Our results indicate that sexual selection by female choice has driven the unidirectional introgression of yellow plumage into the white population, providing a mechanism for how hybrid zones act as conduits of novel and advantageous traits.},\n bibtype = {article},\n author = {Stein, Adam C and Uy, J Albert C},\n doi = {10.1111/j.0014-3820.2006.tb01226.x},\n journal = {Evolution; international journal of organic evolution},\n number = {7}\n}

\n

\n\n\n

\n Hybridization can be an evolutionary creative force by forming new polyploid species, creating novel genetic variation or acting as conduits of potentially advantageous traits between hybridizing forms. Evidence for the latter is often difficult to find because alleles under positive selection can spread rapidly across a hybrid zone and sweep to fixation. In Western Panama, an avian hybrid zone between two species of manakins in the genus Manacus exists where the unidirectional introgression of bright, yellow plumage into a white population provides evidence for the importance of hybrid zones as conduits of advantageous traits. Several lines of indirect evidence suggest that sexual selection favoring yellow plumage drives this asymmetrical spread, but more direct evidence is lacking. Along the edge of the hybrid zone, both yellow- and white-collared manakins are found in the same mating arenas or leks and compete for the same females (\"mixed leks\"), providing us with a unique opportunity to understand the dynamics of yellow plumage introgression. We studied these mixed leks to determine whether yellow males have a mating advantage over white males and, if so, whether the mating advantage is driven by male-male interactions, female choice, or both. We found that yellow males mated more than white males, suggesting that sexual selection favoring yellow males can, indeed, explain the spread of yellow plumage. However, we found that this advantage occurred only in mixed leks where the frequency of yellow males is greater than white males. This suggests that the advantage of yellow males may depend on the presence of other yellow males, which may slow the rate of introgression in leks where yellow frequency is low such as in areas where yellow males are beginning to colonize the white population. This, along with the geographic barrier posed by major rivers in the hybrid zone, may initially limit or slow the spread of yellow plumage. Finally, we found that yellow and white males were similar in aggression and body size, and held comparable positions within leks. Because these traits or factors are often important in or dictated by aggressive male-male interactions, these comparisons indicate that male-male interaction is not the primary mechanism for the spread of yellow plumage. However, white and yellow males received similar numbers of courtship visits from females but differed in the number of matings, suggesting that females actively rejected white in favor of yellow males. Our results indicate that sexual selection by female choice has driven the unidirectional introgression of yellow plumage into the white population, providing a mechanism for how hybrid zones act as conduits of novel and advantageous traits.\n

\n\n\n

\n \n\n \n \n \n \n \n \n A test of the environmental hotspot hypothesis for lek placement in three species of manakins (Pipridae) in Ecuador.\n \n \n \n \n\n\n \n Ryder, T., B.; Blake, J., G.; and Loiselle, B., a.\n\n\n \n\n\n\n The Auk, 123(1): 247-258. 2006.\n \n\n\n\n
\n\n\n\n \n \n $\"A$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {A test of the environmental hotspot hypothesis for lek placement in three species of manakins (Pipridae) in Ecuador},\n type = {article},\n year = {2006},\n keywords = {Pipridae.,hotspot hypothesis,lek placement,male aggregation,manakins},\n pages = {247-258},\n volume = {123},\n websites = {http://www.bioone.org/doi/pdf/10.1642/0004-8038(2006)123[0247:ATOTEH]2.0.CO;2},\n id = {1acaa7bd-b72e-31c2-a3af-0ae9139e55a3},\n created = {2018-04-22T22:19:25.896Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:25.896Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Lekking is classifi ed as a form of male-dominance polygyny in which males lack control of resources essential for the acquisition of females. Of particu- lar interest to behavioral ecologists has been the mechanistic basis of male spatial aggregation and the maintenance of site fi delity over time. The “hotspot” hypothesis has been proposed as both an ultimate and proximate mechanism by which males aggregate in locations where females are likely to be encountered. The hypoth- esis has been extended to include areas of the environment that act to constrain females’ use of space. Here, we test a prediction of this hypothesis for three species of manakins (Pipridae): that leks are located in places where fruit, the main food for these frugivorous birds, is plentiful. We compared four lek sites with four non-lek control sites of Golden-headed (Pipra erythrocephala), Wire-tailed (P. fi licauda), and White-crowned (P. pipra) manakins in an Amazonian forest in Ecuador. Our results show that lek sites had higher fruit biomass than control sites. Moreover, lek sites had more plants bearing ripe fruit as well as a higher fruit biomass per plant than control sites. Thus, our results support the environmental hotspot hypothesis as an explanation for current lek site occupancy and suggest that fruit availability may also explain the placement of traditional manakin lekking sites. We also discuss a potential direct benefi t for subordinate male manakins derived from the notion of central-place foraging and public information-sharing.},\n bibtype = {article},\n author = {Ryder, T. B. and Blake, J. G. and Loiselle, B. a.},\n doi = {doi:10.1642/0004-8038(2006)123[0247:ATOTEH]2.0.CO;2},\n journal = {The Auk},\n number = {1}\n}

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\n \n\n \n \n \n \n \n Climate Change Effects on Neotropical Manakin Diversity Based on Ecological Niche Modeling.\n \n \n \n\n\n \n Anciães, M.; and Peterson, A., T.\n\n\n \n\n\n\n The Condor, 108(4): 778. 2006.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Climate Change Effects on Neotropical Manakin Diversity Based on Ecological Niche Modeling},\n type = {article},\n year = {2006},\n pages = {778},\n volume = {108},\n id = {59675bd1-7061-38a0-94b5-1625a323c22e},\n created = {2019-10-15T16:49:32.475Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T16:59:47.646Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Assessing the nature and magnitude of potential effects of climate change on populations is important to anticipating effects on species diversity for conservation planning. We used ecological niche modeling to predict present and future distributions of 49 species of manakins (Pipridae) and allies. Predictions for present-day distributions were highly coincident with independent test data, suggesting good predictive ability. Assuming no dispersal, projections of potential distributions under four scenarios of climate change predicted that 20% of manakin species would likely go extinct from their current ranges, and that distributions would in general be reduced and fragmented, regardless of the area of present-day potential distribution or rarity. Predicted changes in potential distributions, spatial configuration of suitable habitats, and geographic position of species ranges were more dramatic for species inhabiting flatlands than for montane species. These results are an example of how ecological niche modeling techniques can anticipate the nature and magnitude of changes in biodiversity in response to climate change.},\n bibtype = {article},\n author = {Anciães, Marina and Peterson, A. Townsend},\n doi = {10.1650/0010-5422(2006)108[778:cceonm]2.0.co;2},\n journal = {The Condor},\n number = {4}\n}

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\n \n 2005\n \n \n (2)\n \n \n

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\n \n\n \n \n \n \n \n \n It's Not Easy Being Green: Using Molt and Morphological Criteria To Age and Sex Green- Plumage Manakins (Aves: Pipridae).\n \n \n \n \n\n\n \n Ryder, T., B.; and Durães, R.\n\n\n \n\n\n\n Ornitologia Neotropical, 16: 481-491. 2005.\n \n\n\n\n
\n\n\n\n \n \n $\"It's$ Paper\n \n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {It's Not Easy Being Green: Using Molt and Morphological Criteria To Age and Sex Green- Plumage Manakins (Aves: Pipridae)},\n type = {article},\n year = {2005},\n keywords = {Aging,Key-words,Pipridae,manakins,molecular sexing,molt,tropical birds},\n pages = {481-491},\n volume = {16},\n id = {df710b2e-1622-3cc4-899b-43894b1142ed},\n created = {2016-08-23T22:29:27.000Z},\n file_attached = {true},\n profile_id = {d132db1b-8e9a-3336-8a73-fcc7f47f1a66},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-03-24T05:41:19.837Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Resumen. – No es fácil ser verde: El uso de criterios morfológicos y patrones de muda para determi-nar el sexo y la edad de saltarines con plumaje verde (Aves: Pipridae). – La habilidad para determinar la edad y el sexo de aves puede contribuir con estudios que abarcan desde demografía poblacional hasta biología reproductiva. El sexo y la edad de las aves que se reproducen y migran a lo largo de Europa y Norte América se determinan comúnmente en base a patrones de muda. Sin embargo, hasta la fecha no se ha desarrollado una aproximación similar para las aves que anidan en latitudes tropicales. En este estudio, hemos desarrollado una técnica para determinar la edad y el sexo de saltarines con plumaje verde (Pipridae). Mediante el uso de técnicas comúnmente utilizadas para aves paserinas de áreas templadas, se determinó la edad de 108 individuos y el sexo de 41 individuos de tres especies de saltarines: Saltarín Coroniazul (Lepidotrix coronata), Saltarín Coroniblanca (Pipra pipra), Saltarin Cola-de-Alambre (Pipra filicauda). Las aves que eclosionaron el año de la captura (HY) se diferenciaron de las que eclosionaron en años anteriores (AHY) debido a la retensión de algunas cobertoras mayores y/o cobertoras primarias de estadios juveniles. Las aves que completaron su muda prebásica y que no mostraron ningún otro signo de plumaje masculino fueron clasificadas como hembras. El sexo de los individuos con vestigios de plumaje masculino no fue determinado con precisión, debido a que las hembras de mayor edad pueden poseer algunos atributos de plumaje masculino. Las técnicas para determinar el sexo fueron validadas mediante el uso de técnicas moleculares y probaron ser altamente confiables. Hasta la fecha, no tenemos suficientes datos de recapturas para evaluar detalladamente las técnicas de determinación de edad de individuos con plumaje verde. Sin embargo esta técnica demostró ser precisa para machos capturados en las asambleas de cortejo. Consecuentemente, las técnicas de determinación de edad y sexo presentadas en este artículo constituyen una contribución útil para el entendimiento de la variación de la supervivencia, demografía poblacional y éxito reproductivo. Abstract. – The ability to age and sex individual birds can enhance studies ranging from population demo-graphics to reproductive biology. Birds that breed and migrate through Europe and North America are commonly aged and sexed based on molt patterns. Yet to date, a similar approach has not been developed for birds breeding at tropical latitudes. Here we develop a technique for aging and sexing green-plumage manakins (Pipridae). We aged 108 individuals and sexed 41 individuals of three species, Blue-crowned Manakin (Lepidothrix coronata), White-crowned Manakin (Pipra pipra), and Wire-tailed Manakin (Pipra fili-cauda), with techniques commonly used for temperate passerines. Hatching-year birds (HY) were distin-guishable from after-hatching-year birds (AHY) by retention of some juvenile greater coverts and/or juvenile primary coverts. Birds which had completed their second prebasic molt and had no signs of male plumage were sexed as female. Individuals with signs of male plumage were not reliably sexed because old females can attain some attributes of male plumage. The sexing technique was validated using molecular ______________ 1 Corresponding author: Pipridae@umsl.edu 482 RYDER & DURÃES techniques to determine sex and proved highly accurate. To date we have insufficient recapture data to thoroughly evaluate the aging techniques for green plumage individuals. However, it has proven accurate for males captured at leks. Thus, the sexing and aging techniques presented here constitute a useful addi-tion to understanding variation in survival, population demographics, and reproductive success. Accepted 3 June 2005.},\n bibtype = {article},\n author = {Ryder, Thomas B and Durães, Renata},\n journal = {Ornitologia Neotropical}\n}

\n

\n\n\n

\n Resumen. – No es fácil ser verde: El uso de criterios morfológicos y patrones de muda para determi-nar el sexo y la edad de saltarines con plumaje verde (Aves: Pipridae). – La habilidad para determinar la edad y el sexo de aves puede contribuir con estudios que abarcan desde demografía poblacional hasta biología reproductiva. El sexo y la edad de las aves que se reproducen y migran a lo largo de Europa y Norte América se determinan comúnmente en base a patrones de muda. Sin embargo, hasta la fecha no se ha desarrollado una aproximación similar para las aves que anidan en latitudes tropicales. En este estudio, hemos desarrollado una técnica para determinar la edad y el sexo de saltarines con plumaje verde (Pipridae). Mediante el uso de técnicas comúnmente utilizadas para aves paserinas de áreas templadas, se determinó la edad de 108 individuos y el sexo de 41 individuos de tres especies de saltarines: Saltarín Coroniazul (Lepidotrix coronata), Saltarín Coroniblanca (Pipra pipra), Saltarin Cola-de-Alambre (Pipra filicauda). Las aves que eclosionaron el año de la captura (HY) se diferenciaron de las que eclosionaron en años anteriores (AHY) debido a la retensión de algunas cobertoras mayores y/o cobertoras primarias de estadios juveniles. Las aves que completaron su muda prebásica y que no mostraron ningún otro signo de plumaje masculino fueron clasificadas como hembras. El sexo de los individuos con vestigios de plumaje masculino no fue determinado con precisión, debido a que las hembras de mayor edad pueden poseer algunos atributos de plumaje masculino. Las técnicas para determinar el sexo fueron validadas mediante el uso de técnicas moleculares y probaron ser altamente confiables. Hasta la fecha, no tenemos suficientes datos de recapturas para evaluar detalladamente las técnicas de determinación de edad de individuos con plumaje verde. Sin embargo esta técnica demostró ser precisa para machos capturados en las asambleas de cortejo. Consecuentemente, las técnicas de determinación de edad y sexo presentadas en este artículo constituyen una contribución útil para el entendimiento de la variación de la supervivencia, demografía poblacional y éxito reproductivo. Abstract. – The ability to age and sex individual birds can enhance studies ranging from population demo-graphics to reproductive biology. Birds that breed and migrate through Europe and North America are commonly aged and sexed based on molt patterns. Yet to date, a similar approach has not been developed for birds breeding at tropical latitudes. Here we develop a technique for aging and sexing green-plumage manakins (Pipridae). We aged 108 individuals and sexed 41 individuals of three species, Blue-crowned Manakin (Lepidothrix coronata), White-crowned Manakin (Pipra pipra), and Wire-tailed Manakin (Pipra fili-cauda), with techniques commonly used for temperate passerines. Hatching-year birds (HY) were distin-guishable from after-hatching-year birds (AHY) by retention of some juvenile greater coverts and/or juvenile primary coverts. Birds which had completed their second prebasic molt and had no signs of male plumage were sexed as female. Individuals with signs of male plumage were not reliably sexed because old females can attain some attributes of male plumage. The sexing technique was validated using molecular ______________ 1 Corresponding author: Pipridae@umsl.edu 482 RYDER & DURÃES techniques to determine sex and proved highly accurate. To date we have insufficient recapture data to thoroughly evaluate the aging techniques for green plumage individuals. However, it has proven accurate for males captured at leks. Thus, the sexing and aging techniques presented here constitute a useful addi-tion to understanding variation in survival, population demographics, and reproductive success. Accepted 3 June 2005.\n

\n\n\n

\n \n\n \n \n \n \n \n A case of plumage aberration in the Pin-tailed Manakin Ilicura militaris.\n \n \n \n\n\n \n Anciães, M.; Nemésio, A.; and Sebaio, F.\n\n\n \n\n\n\n Cotinga, (I): 39-43. 2005.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {A case of plumage aberration in the Pin-tailed Manakin Ilicura militaris},\n type = {article},\n year = {2005},\n pages = {39-43},\n id = {e9751ae0-e088-37ff-a8fd-92a75a6d087b},\n created = {2019-10-15T16:49:33.295Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T17:59:11.752Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Anciães, Marina and Nemésio, André and Sebaio, Fabiane},\n journal = {Cotinga},\n number = {I}\n}

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\n \n 2003\n \n \n (1)\n \n \n

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\n \n\n \n \n \n \n \n \n Interacting effects of ambient light and plumage color patterns in displaying Wire-tailed Manakins (Aves, Pipridae).\n \n \n \n \n\n\n \n Heindl, M.; and Winkler, H.\n\n\n \n\n\n\n Behavioral Ecology and Sociobiology, 53(3): 153-162. 2003.\n \n\n\n\n
\n\n\n\n \n \n $\"Interacting$ Website\n \n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Interacting effects of ambient light and plumage color patterns in displaying Wire-tailed Manakins (Aves, Pipridae)},\n type = {article},\n year = {2003},\n keywords = {Ambient light,Conspicuousness,Pipra filicauda,Plumage coloration,Visual signal},\n pages = {153-162},\n volume = {53},\n websites = {http://dx.doi.org/10.1007/s00265-002-0562-3},\n id = {a23254d5-f0c9-3359-a4b4-c22d02600804},\n created = {2019-05-02T17:43:13.865Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-05-02T17:43:13.865Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Sending color signals to conspecifics may at- tract predators, leading to opposing selection pressures on the evolution of signal expression and display behav- ior in animals. The costs of signaling can be reduced, however, because conspicuousness is the combined re- sult of the reflectance spectra of the displayer’s color pattern and the spectra of ambient light illuminating the animal. Changes in ambient light can alter conspicuous- ness, even when chemical and structural color-generating mechanisms remain constant, potentially allowing ani- mals to display their colors most fully in light environ- ments where the benefits are greatest relative to the costs. Using spectroradiometric methods, we determined how light habitat use affects conspicuousness in adult males of the Wire-tailed Manakin Pipra filicauda, a lek- king bird species with vivid plumage colors. We studied three aspects of visibility, including properties of the en- tire color pattern, visual contrast within an individual’s plumage and a bird’s contrast relative to its visual back- ground. Wire-tailed Manakins usually displayed in forest shade environments, which reduced their conspicuous- ness at larger viewing distances, while maximizing visu- al contrast within the plumage color pattern at close viewing distances. Compared to sunspots, ambient light in forest shade reduces the contrast of individual bird colors with the background at close viewing distance. However, background contrast of individual bird colors in the shade was still relatively higher during sunny than during cloudy weather which may explain why males were more active when the sun was not blocked by clouds. Assuming that the visual perceptions of preda- tors and other manakins do not differ from the reflec- tance patterns we measured, Wire-tailed manakins tend to display in light environments that reduce the conflicts between avoiding long distance detection by predators and displaying conspicuous color signals to visiting fe- males.},\n bibtype = {article},\n author = {Heindl, Martin and Winkler, Hans},\n journal = {Behavioral Ecology and Sociobiology},\n number = {3}\n}

\n

\n\n\n

\n Sending color signals to conspecifics may at- tract predators, leading to opposing selection pressures on the evolution of signal expression and display behav- ior in animals. The costs of signaling can be reduced, however, because conspicuousness is the combined re- sult of the reflectance spectra of the displayer’s color pattern and the spectra of ambient light illuminating the animal. Changes in ambient light can alter conspicuous- ness, even when chemical and structural color-generating mechanisms remain constant, potentially allowing ani- mals to display their colors most fully in light environ- ments where the benefits are greatest relative to the costs. Using spectroradiometric methods, we determined how light habitat use affects conspicuousness in adult males of the Wire-tailed Manakin Pipra filicauda, a lek- king bird species with vivid plumage colors. We studied three aspects of visibility, including properties of the en- tire color pattern, visual contrast within an individual’s plumage and a bird’s contrast relative to its visual back- ground. Wire-tailed Manakins usually displayed in forest shade environments, which reduced their conspicuous- ness at larger viewing distances, while maximizing visu- al contrast within the plumage color pattern at close viewing distances. Compared to sunspots, ambient light in forest shade reduces the contrast of individual bird colors with the background at close viewing distance. However, background contrast of individual bird colors in the shade was still relatively higher during sunny than during cloudy weather which may explain why males were more active when the sun was not blocked by clouds. Assuming that the visual perceptions of preda- tors and other manakins do not differ from the reflec- tance patterns we measured, Wire-tailed manakins tend to display in light environments that reduce the conflicts between avoiding long distance detection by predators and displaying conspicuous color signals to visiting fe- males.\n

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\n \n 2002\n \n \n (2)\n \n \n

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\n \n\n \n \n \n \n \n \n Social Organization on Leks of the Wire-Tailed Manakin in Southern Venezuela.\n \n \n \n \n\n\n \n Heindl, M.\n\n\n \n\n\n\n The Condor, 104(4): 772. 2002.\n \n\n\n\n
\n\n\n\n \n \n $\"Social$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Social Organization on Leks of the Wire-Tailed Manakin in Southern Venezuela},\n type = {article},\n year = {2002},\n pages = {772},\n volume = {104},\n websites = {http://dx.doi.org/10.1650/0010-5422(2002)104[0772:SOOLOT]2.0.CO;2},\n id = {62185d61-478f-321e-8328-09e8e6a5a38c},\n created = {2018-04-22T22:19:24.458Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:24.458Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {I studied the social organization of lekking Wire-tailed Manakins (Pipra filicauda) in the Amazonian lowland rainforest of southern Venezuela. Territorial males maintained dispersed territories at lek sites in seasonally flooded forest and were visited by other territorial males, by nonterritorial males, and by immature males. Nonterritorial males became territorial either by establishing a new display area or by inheriting an existent territory. The majority of territorial visitors never engaged in joint displays with territory owners, whereas nonterritorial male visitors attempted displays with the resident bird during more than half of the observed interactions. One-third of the territory owners formed at least periodically close display partnerships with a specific nonterritorial male. Observations during female visits to male pairs and dominant behavior of the resident bird within its territory suggest a hierarchy within display pairs. Dominance relationships, stability in the composition of display pairs, and the possibility for subordinates to inherit a territory indicate that coordinated displays between males may have a cooperative function. However, most female visits were directed to single males, so that joint displays are probably not obligatory for achieving copulations.},\n bibtype = {article},\n author = {Heindl, Martin},\n doi = {10.1650/0010-5422(2002)104[0772:SOOLOT]2.0.CO;2},\n journal = {The Condor},\n number = {4}\n}

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\n \n\n \n \n \n \n \n Sex Identification of Pin-Tailed Manakins (Ilicura Militaris: Pipridae) Using the Polymerase Chain Reaction and Its Application to Behavioral Studies.\n \n \n \n\n\n \n Anciaes, M.; and Del Lama, S., N.\n\n\n \n\n\n\n Ornitologia Neotropical, 13(3): 159-166. 2002.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Sex Identification of Pin-Tailed Manakins (Ilicura Militaris: Pipridae) Using the Polymerase Chain Reaction and Its Application to Behavioral Studies},\n type = {article},\n year = {2002},\n keywords = {CHD,Ilicura militaris,Pin-tailed Manakin,Pipridae,Social organization,molecular sexing,sex-ratio},\n pages = {159-166},\n volume = {13},\n id = {e23b9396-aff9-3f36-a246-36f729deacd5},\n created = {2019-10-15T16:59:47.231Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:25.050Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Adult males of most manakin species are recognizable by their distinct sexually dimorphic plu- mage, but they have delayed plumage maturation. Immature and sexually mature males have an initial plu- mage indistinguishable from the female plumage, which complicates field studies on their reproductive behavior. We tested two molecular methods for sex identification in the Pin-tailed Manakin (Ilicura milita- ris) using the CHD (chromo-helicase-DNA-binding) genes, located on Z and W avian sex chromosomes. The CHDZ and CHDW PCR products may be discriminated by absence/presence of a specific restriction site or by intronic length. These methods had never been applied to any suboscine Passeriformes. We con- ducted both protocols on samples of blood from 22 Pin-tailed Manakins captured at male display sites in two forests from southeastern Brazil. The CHD restriction site polymorphism and the intronic CHD size dimorphism methods correctly identified the sex of five males and one female that were sexed by observa- tion of definitive male plumage or ovaries. Both methods were applied to sex 17 female-like plumaged birds of unknown sex from our samples, resulting in the identification of 11 males and five females in one study site, a significant skewed sex ratio toward males (χ2 = 15.12, P < 0.0001), and one male in the second study site. This result indicates that a majority of the female-like plumaged birds at male display sites are pre-definitive plumaged males. Our data show that the CHD sequence is conserved in suboscine Passeri- formes and highlights the importance of newly developed molecular sexing techniques in behavioral stud- ies. Accepted 18 October 2001.},\n bibtype = {article},\n author = {Anciaes, Marina and Del Lama, Silvia Nassif},\n journal = {Ornitologia Neotropical},\n number = {3}\n}

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\n\n\n\n\n\n

\n

\n \n 2001\n \n \n (2)\n \n \n

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\n \n \n

\n \n\n \n \n \n \n \n \n SEXUAL SELECTION ON PLUMAGE AND BEHAVIOR IN AN AVIAN HYBRID ZONE: EXPERIMENTAL TESTS OF MALE-MALE INTERACTIONS.\n \n \n \n \n\n\n \n McDonald, D., B.; Clay, R., P.; Brumfield, R., T.; and Braun, M., J.\n\n\n \n\n\n\n Evolution, 55(7): 1443-1451. 7 2001.\n \n\n\n\n
\n\n\n\n \n \n $\"SEXUAL$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {SEXUAL SELECTION ON PLUMAGE AND BEHAVIOR IN AN AVIAN HYBRID ZONE: EXPERIMENTAL TESTS OF MALE-MALE INTERACTIONS},\n type = {article},\n year = {2001},\n keywords = {Aggression,Asymmetric introgression,Character evolution,Lek,Manakin,Shifted clines,Speciation},\n pages = {1443-1451},\n volume = {55},\n websites = {http://doi.wiley.com/10.1111/j.0014-3820.2001.tb00664.x},\n month = {7},\n id = {05f1addb-dbf4-3331-a88a-ed3de7e49697},\n created = {2018-04-22T22:19:23.736Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:24.164Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {In western Panama, an unusual hybrid zone exists between white-collared manakins, Manacus candei, and golden-collared manakins, M. vitellinus. Unidirectional introgression of plumage traits from vitellinus into candei has created a region in which all definitively plumaged males have a collar that is lemon-colored. These males are nearly indistinguishable from white-collared candei genetically and morphometrically, but strongly resemble golden-collared vitellinus due to the introgression of secondary sexual plumage traits, particularly the lemon-colored collar. The introgression could be explained by sexual selection for golden-collared traits or by a series of mechanisms that do not invoke sexual selection (e.g., neutral diffusion, dominant allele). Sexual selection on male-male interactions implies behavioral differences among the plumage forms - specifically that golden- and lemon-collared males should be more aggressive than white-collared males, In contrast, the nonsexual hypotheses predict behavioral similarity between lemon- and white-collared males, based on their nearly identical genetics. We tested the sexual selection hypothesis experimentally, by presenting males with taxidermic mounts of the three forms. As response variables, we monitored vocalizations and attacks on the mounts by replicate subject males. Both golden-collared and lemon-collared males were more likely to attack than were white-collared males, as predicted under sexual selection but not by the nonsexual hypotheses. Lemon-collared males were more vocally reactive than either parental form, contrary to the prediction of the nonsexual hypotheses. Our study demonstrates that sexual selection on male-male interactions may play an important role in the dynamics of character evolution and hybrid zones.},\n bibtype = {article},\n author = {McDonald, David B and Clay, Robert P and Brumfield, Robb T and Braun, Michael J},\n doi = {10.1111/j.0014-3820.2001.tb00664.x},\n journal = {Evolution},\n number = {7}\n}

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\n \n\n \n \n \n \n \n Records of the Elegant Mouner, Laniisoma elegans (Passeriformes: Cotingidae) in forest fragments from eastern Brazil.\n \n \n \n\n\n \n Anciaes, M.; Maldonado-Coelho, M.; and Chaves-Cordeiro, P.\n\n\n \n\n\n\n Melopsittacus, 4(1): 44-46. 2001.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Records of the Elegant Mouner, Laniisoma elegans (Passeriformes: Cotingidae) in forest fragments from eastern Brazil},\n type = {article},\n year = {2001},\n pages = {44-46},\n volume = {4},\n id = {ff30e7dd-0d2d-3c48-b708-0a32ded6e759},\n created = {2019-10-15T16:49:32.845Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:25.123Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Anciaes, M. and Maldonado-Coelho, M. and Chaves-Cordeiro, P.H.},\n journal = {Melopsittacus},\n number = {1}\n}

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\n \n 2000\n \n \n (2)\n \n \n

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\n \n\n \n \n \n \n \n Fine-scale genetic structuring on Manacus manacus leks.\n \n \n \n\n\n \n Shorey, L.; Piertney, S.; Stone, J.; and Höglund, J.\n\n\n \n\n\n\n Nature, 408(6810): 352-353. 2000.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Fine-scale genetic structuring on Manacus manacus leks.},\n type = {article},\n year = {2000},\n pages = {352-353},\n volume = {408},\n id = {e47476b0-197c-30c4-866d-36c0000b2d48},\n created = {2018-04-22T22:19:21.911Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:21.911Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Leks have traditionally been considered as arenas where males compete to attract females and secure matings. Thus, direct fitness benefits mediated through competition between males to fertilize females have been considered to be the primary force driving the evolution of lekking behaviour. Inclusive fitness benefits mediated through kin selection may also be involved in lek formation and evolution, but to date this theory has been largely ignored. According to kin-selection theory, both reproducing and non-reproducing males may gain indirect inclusive fitness benefits. If females are attracted to larger leks, non-reproducing males add attractiveness to a lek, and therefore, in a genetically structured population, boost the reproductive success of kin. Theory predicts that the attractiveness of leks is plastic, and that males establish themselves on a lek in which the top male, in terms of reproductive success, is a close relative. Here we show that in white-bearded manakins (Manacus manacus), for which larger leks are more attractive to females and so secure the maximum number of matings, there is extraordinary fine-scale genetic structure, with leks being composed of clusters of related kin. We propose that males establish themselves where they find relatives to such an extent that they form groups within leks, and that such behaviour is consistent with kin-selection theory to maximize reproductive success of the group.},\n bibtype = {article},\n author = {Shorey, L and Piertney, S and Stone, J and Höglund, J},\n doi = {10.1038/35042562},\n journal = {Nature},\n number = {6810}\n}

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\n \n\n \n \n \n \n \n The effects of fragmentation on fluctuating asymmetry in passerine birds of Brazilian tropical forests.\n \n \n \n\n\n \n Anciaes, M. & Marini, M., A.\n\n\n \n\n\n\n Journal of Applied Ecology, (Robinson 1989): 1013-1028. 2000.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {The effects of fragmentation on fluctuating asymmetry in passerine birds of Brazilian tropical forests},\n type = {article},\n year = {2000},\n keywords = {Journal,conservation,deforestation,developmental stability,habitat distur- bance,neotropical birds.},\n pages = {1013-1028},\n id = {ed67d338-0db4-3e15-aaeb-ead98e04fb7d},\n created = {2019-10-15T16:49:32.484Z},\n file_attached = {false},\n profile_id = {1d161c08-7097-3112-a9d5-ab316623dc07},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T17:59:12.212Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {1. Fluctuating asymmetry (FA) refers to the di?erence between the right and left sides in characters that should otherwise be bilaterally symmetrical, but whose expression is a?ected by epigenetic stress during development. Forest fragmenta- tion may promote an increase in FA in isolated populations, by either genetic or environmental stress. FA may function as a biomonitor index in conservation biol- ogy if increased levels were observed in populations from fragmented habitats. 2. We tested the hypothesis that FA is higher in birds from small tropical forest patches than in large forest tracts. We measured wing and tarsus FA on mist-netted birds from seven fragments and seven continuous areas from south-eastern Atlantic rain forest in Brazil. We performed FA comparisons between fragments and con- trol groups for the whole community, for individual foraging guilds and for the six most abundant species. 3. Wing and tarsus FA were signi®cantly greater in fragments than continuous areas for the whole community and were both negatively correlated with forest fragment size. Di?erences in FA varied among foraging guilds, being more evident for insectivorous species, especially those feeding in or near the understorey. 4. FA levels increased signi®cantly in forest fragments in at least one trait for ®ve of the six most abundant species. There was no correlation between tarsus and wing asymmetries for the individuals of any species nor any di?erence between the degree of asymmetries of these characters. 5. We suggest that FA is a useful tool to assess the e?ects of fragmentation on for- est birds, and may be applied in monitoring neotropical birds. FA indices might be pro®tably developed, particularly in species most threatened by fragmentation e?ects and when investigated in di?erent morphological characters. Key-words: conservation, deforestation, developmental stability, habitat distur- bance, neotropical birds. Journal ofApplied Ecology (2000) 37, 1013±1028 5},\n bibtype = {article},\n author = {Anciaes, M. & Marini, M. A.},\n journal = {Journal of Applied Ecology},\n number = {Robinson 1989}\n}

\n

\n\n\n

\n 1. Fluctuating asymmetry (FA) refers to the di?erence between the right and left sides in characters that should otherwise be bilaterally symmetrical, but whose expression is a?ected by epigenetic stress during development. Forest fragmenta- tion may promote an increase in FA in isolated populations, by either genetic or environmental stress. FA may function as a biomonitor index in conservation biol- ogy if increased levels were observed in populations from fragmented habitats. 2. We tested the hypothesis that FA is higher in birds from small tropical forest patches than in large forest tracts. We measured wing and tarsus FA on mist-netted birds from seven fragments and seven continuous areas from south-eastern Atlantic rain forest in Brazil. We performed FA comparisons between fragments and con- trol groups for the whole community, for individual foraging guilds and for the six most abundant species. 3. Wing and tarsus FA were signi®cantly greater in fragments than continuous areas for the whole community and were both negatively correlated with forest fragment size. Di?erences in FA varied among foraging guilds, being more evident for insectivorous species, especially those feeding in or near the understorey. 4. FA levels increased signi®cantly in forest fragments in at least one trait for ®ve of the six most abundant species. There was no correlation between tarsus and wing asymmetries for the individuals of any species nor any di?erence between the degree of asymmetries of these characters. 5. We suggest that FA is a useful tool to assess the e?ects of fragmentation on for- est birds, and may be applied in monitoring neotropical birds. FA indices might be pro®tably developed, particularly in species most threatened by fragmentation e?ects and when investigated in di?erent morphological characters. Key-words: conservation, deforestation, developmental stability, habitat distur- bance, neotropical birds. Journal ofApplied Ecology (2000) 37, 1013±1028 5\n

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\n \n 1999\n \n \n (1)\n \n \n

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\n \n\n \n \n \n \n \n \n Interspecific synchrony and asynchrony in the fruiting phenologies of congeneric bird-dispersed plants in Panama.\n \n \n \n \n\n\n \n Poulin, B.; Wright, S., J.; Lefebvre, G.; and Calderón, O.\n\n\n \n\n\n\n Journal of Tropical Ecology, 15(2): 213-227. 3 1999.\n \n\n\n\n
\n\n\n\n \n \n $\"Interspecific$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Interspecific synchrony and asynchrony in the fruiting phenologies of congeneric bird-dispersed plants in Panama},\n type = {article},\n year = {1999},\n keywords = {Competition,Diet diversity,Frugivorous birds,Fruiting phenology,Miconia,Panama,Psychotria,Seed dispersal},\n pages = {213-227},\n volume = {15},\n websites = {https://www.cambridge.org/core/product/identifier/S0266467499000760/type/journal_article},\n month = {3},\n day = {1},\n id = {b67341e1-3a8d-300c-9087-621915e18e6a},\n created = {2019-10-13T22:29:58.533Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-13T22:29:58.533Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Plants potentially compete for seed dispersal. Selection may favour temporally segregated fruiting phenologies to minimize this competition and also to maintain resident populations of dispersal agents. Alternatively, selection may favour temporally aggregated fruiting phenologies when the effectiveness of seed dispersal agents varies seasonally or when large, synchronous fruit displays enhance dispersal. These evolutionary scenarios assume that plants share seed dispersal agents. This assumption and temporal overlap in fruiting phenologies were evaluated for the Miconia and Psychotria of central Panama. These two genera accounted for 18 and 27%, respectively, of 1096 fleshy fruits found in regurgitation or faecal samples taken from 2054 birds of 103 species netted in the forest understorey. Two species of manakins accounted for 62% (123/200) of all Miconia fruit taken. Three species of manakins and three species of migratory thrushes accounted for 97% (282/292) of all Psychotria fruits taken. There is a high potential for intrageneric competition for seed dispersal for both plant genera. Null model analyses showed that the fruiting phenologies of Miconia (14 species) are segregated in time, while fruiting of Psychotria (21 species) is highly aggregated. The Miconia were found in up to 24% of the diet samples for the two manakin species, suggesting that Miconia may be a critical resource for both species. The Psychotria fruited when the diversity of understorey fruits was greatest, suggesting a high potential for both intra- and extrageneric competition. The abundance and nomadism of the six bird species that consumed most Psychotria fruit peaked when the Psychotria fruited, supporting the enhancement hypothesis.},\n bibtype = {article},\n author = {Poulin, Brigitte and Wright, S. Joseph and Lefebvre, Gaëtan and Calderón, Osvaldo},\n doi = {10.1017/S0266467499000760},\n journal = {Journal of Tropical Ecology},\n number = {2}\n}

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\n \n 1997\n \n \n (2)\n \n \n

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\n \n\n \n \n \n \n \n \n Courtship behaviour of manakins and seed bank composition in a French Guianan rain forest.\n \n \n \n \n\n\n \n Krijger, C., L.; Opdam, M.; Théry, M.; and Bongers, F.\n\n\n \n\n\n\n Journal of Tropical Ecology, 13(4): 631-636. 7 1997.\n \n\n\n\n
\n\n\n\n \n \n $\"Courtship$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Courtship behaviour of manakins and seed bank composition in a French Guianan rain forest},\n type = {article},\n year = {1997},\n keywords = {Leks,Manakins,Melastomataceae,Seed dispersal},\n pages = {631-636},\n volume = {13},\n websites = {https://www.cambridge.org/core/product/identifier/S0266467400010774/type/journal_article},\n month = {7},\n day = {10},\n id = {2d28d2a6-2902-3283-8ff8-f3385649988a},\n created = {2019-10-13T22:29:58.945Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-13T22:29:58.945Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {research article; corapipo gutturalis; manacus manacus; manakin; courtship behavior; seed bank composition; seed clumping; terrestrial ecology; lekking; french guiana; south america},\n bibtype = {article},\n author = {Krijger, C. L. and Opdam, M. and Théry, M. and Bongers, F.},\n doi = {10.1017/S0266467400010774},\n journal = {Journal of Tropical Ecology},\n number = {4}\n}

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\n \n\n \n \n \n \n \n \n Survival Rates of Tropical and Temperate Passerines: A Trinidadian Perspective.\n \n \n \n \n\n\n \n Johnston, J., P.; Peach, W., J.; Gregory, R., D.; and White, S., A.\n\n\n \n\n\n\n The American Naturalist, 150(6): 771-789. 12 1997.\n \n\n\n\n
\n\n\n\n \n \n $\"Survival$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Survival Rates of Tropical and Temperate Passerines: A Trinidadian Perspective},\n type = {article},\n year = {1997},\n pages = {771-789},\n volume = {150},\n websites = {https://www.journals.uchicago.edu/doi/10.1086/286093},\n month = {12},\n id = {7c1b1a86-4d41-3745-afae-dd0dbfd5716e},\n created = {2019-10-13T22:29:59.298Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-13T22:29:59.298Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Mark-recapture data collected using mist nest over a 10-yr period in Trinidad were used to estimate adult survival rates for 17 species of forest passerines. Trinidadian survival rates (mean 65%, range 45%-85%) were significantly highter than published estimates for Euripean (mean survival 52%, range 32%-71%) and North American (mean survival 53%, range 29%-63%) passerines of similar body size (equivalent to 45% higher mean life expectancy in Trinidad). These findings were confirmed after controlling for phylogeny using method of independet contrast. Trasient and/or young birds were an important feature of the Trinidad dara, anda studies that fail to allow for the presence of such birds risk underestimating adult survival. This study lends support to the hypothesis that avian survival rates are higher in the humid tropics, although the magnitude of the difference may be smaller than previously suggested.},\n bibtype = {article},\n author = {Johnston, John P. and Peach, Will J. and Gregory, Richard D. and White, Stewart A.},\n doi = {10.1086/286093},\n journal = {The American Naturalist},\n number = {6}\n}

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\n \n 1996\n \n \n (1)\n \n \n

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\n \n\n \n \n \n \n \n \n Interacting Effects of Lek Placement, Display Behavior, Ambient Light, and Color Patterns in Three Neotropical Forest-Dwelling Birds.\n \n \n \n \n\n\n \n Endler, J., A.; and Thery, M.\n\n\n \n\n\n\n The American Naturalist, 148(3): 421-452. 9 1996.\n \n\n\n\n
\n\n\n\n \n \n $\"Interacting$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Interacting Effects of Lek Placement, Display Behavior, Ambient Light, and Color Patterns in Three Neotropical Forest-Dwelling Birds},\n type = {article},\n year = {1996},\n pages = {421-452},\n volume = {148},\n websites = {https://www.journals.uchicago.edu/doi/10.1086/285934},\n month = {9},\n id = {26e9fbdf-67b8-3880-9705-3acd192629d3},\n created = {2019-10-13T22:29:58.530Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-13T22:29:58.530Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Forests exhibit a mosaic of different spectral environments that arise from forest geometry and weather. If visual signals are used in mate choice, then forest geometry and weather will affect reproductive behavior because the appearance of a visual signal depends on the joint effects of ambient light and the animal's reflectance spectra. We investigated three lekking birds at Nourages field station, French Guiana: Rupicola rupicola, Corapipo gutturalis, and Lepidothrix serena. Conspicuousness is a function of ambient light spectra during displays and the reflectance spectra of color pattern elements of the birds and their visual backgrounds. Each species places its lek and performs its lek displays in only one or two of the available light environments, and some may specialize in the more extreme spectra even within each light environment. The color patterns and behavior of each species maximize its visual contrast during its display and reduce it off the lek or on the lek but not displaying. Each specie...},\n bibtype = {article},\n author = {Endler, John A. and Thery, Marc},\n doi = {10.1086/285934},\n journal = {The American Naturalist},\n number = {3}\n}

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\n \n 1995\n \n \n (3)\n \n \n

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\n \n\n \n \n \n \n \n \n Demography of Birds in a Neotropical Forest: Effects of Allometry, Taxonomy, and Ecology.\n \n \n \n \n\n\n \n Brawn, J., D.; Karr, J., R.; and Nichols, J., D.\n\n\n \n\n\n\n Ecology, 76(1): 41-51. 1 1995.\n \n\n\n\n
\n\n\n\n \n \n $\"Demography$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Demography of Birds in a Neotropical Forest: Effects of Allometry, Taxonomy, and Ecology},\n type = {article},\n year = {1995},\n pages = {41-51},\n volume = {76},\n websites = {http://doi.wiley.com/10.2307/1940630},\n month = {1},\n id = {a52c6970-ae3c-30c8-bacc-551038b05782},\n created = {2019-10-13T22:29:58.532Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-13T22:29:58.532Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Comparative demographic studies of terrestrial vertebrates have included few samples of species from tropical forests. We analyzed 9 yr of mark-recapture data and estimated demographic parameters for 25 species of birds inhabiting lowland forests in central Panama. These species were all songbirds (Order Passeriformes) ranging in mass from 7 to 57 g. Using Jolly-Seber stochastic models for open populations, we estimated annual survival rate, population size, and recruitment between sampling periods for each species. We then explored relationships between these parameters and attributes such as body size, phylogenetic affiliation, foraging guild, and social behavior. Larger birds had comparatively long life-spans and low recruitment, but body size was not associated with population size. After adjusting for effects of body size, we found no association between phylogenetic affiliation and any demographic trait. Ecological attributes, especially foraging guild, were more clearly associated with interspecific variation in all demographic traits. Ant-followers had comparatively long life-spans, but species that participate in flocks did not live longer than solitary species. The allometric associations we observed were con- sistent with those demonstrated in other studies of vertebrates; thus, these relationships appear to be robust. Our finding that ecological factors were more influential than phylo- genetic affiliation contrasts with comparative studies of temperate-zone birds and suggests that the relative importance of environmental vs. historical factors varies geographically.},\n bibtype = {article},\n author = {Brawn, Jeffrey D. and Karr, James R. and Nichols, James D.},\n doi = {10.2307/1940630},\n journal = {Ecology},\n number = {1}\n}

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\n \n\n \n \n \n \n \n Light patterns as cues for mate choice in the lekking white-throated man akin (Corapipo gutturalis).\n \n \n \n\n\n \n Théry, M.; and Vehrencamp, S., L.\n\n\n \n\n\n\n Auk, 112(1): 133-145. 1995.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Light patterns as cues for mate choice in the lekking white-throated man akin (Corapipo gutturalis)},\n type = {article},\n year = {1995},\n pages = {133-145},\n volume = {112},\n id = {95e1384c-9b82-37ba-bbf9-8c74b761b138},\n created = {2019-10-13T22:29:58.932Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:25.419Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {We explored in an exploded lek species the relationships between three alternatives hypotheses for typical skewed male mating success: (1) female preference for display-site characteristics; (2) female preference for male phenotypic traits; and (3) mate choice determined by the outcome of male dominance interactions. The possible role of these mechanisms of female choice was examined in the White-throated Manakin (Corapipo gutturalis), a species in which males display on the top of mossy fallen logs lying on the primary forest floor. Data on light intensity at the display site, lek attendance, male calling and display rates, visits by males and females, and mating success were collected on six males at a single lek. The two males with the brightest two arenas received high rates of female visitation and performed 71% of the mating attempts. However, only one of them successfully copulated because the other male was always disrupted by visiting males. The results suggest that light properties of the display site and attendance of the male determine the attractiveness of male display to females, whereas male interactions subsequently mediate copulatory success. Brightness of the display site appears as the primary cue for mate choice in C. gulturalis, but this is not used by females as an indicator of the males' relative dominance because the dominance status of males is not correlated with the brightness of their display sites.},\n bibtype = {article},\n author = {Théry, Marc and Vehrencamp, Sandra L.},\n doi = {10.2307/4088773},\n journal = {Auk},\n number = {1}\n}

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\n \n\n \n \n \n \n \n \n Singing performance, frequency matching and courtship success of long-tailed manakins (Chiroxiphia linearis).\n \n \n \n \n\n\n \n Trainer, J., M.; and McDonald, D., B.\n\n\n \n\n\n\n Behavioral Ecology and Sociobiology, 37(4): 249-254. 10 1995.\n \n\n\n\n
\n\n\n\n \n \n $\"Singing$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Singing performance, frequency matching and courtship success of long-tailed manakins (Chiroxiphia linearis)},\n type = {article},\n year = {1995},\n keywords = {Cooperation,Lek,Manakin,Mate choice,Song},\n pages = {249-254},\n volume = {37},\n websites = {http://link.springer.com/10.1007/BF00177404},\n month = {10},\n id = {de262dda-3c91-3cba-9353-110ce20bd3b7},\n created = {2019-10-13T22:29:59.293Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-13T22:29:59.293Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {We examined the relationship between song performance and courtship success in the lek-mating long-tailed manakin (Chiroxiphia linearis) of Costa Rica. Teams of male manakins form cooperative partnerships consisting of a dominant alpha male and a beta male partner with a variable number of subordinate affiliates. Each alpha and beta partnership performs a joint song virtually in unison, which attracts females to their lek arena. We quantified four aspects of song performance, including synchrony, degree of consistency in the alpha male's singing, degree of consistency in the beta male's singing, and degree of sound frequency matching between partners. When all four variables were included in a discriminant function analysis, average frequency matching alone was useful in discriminating between teams with high rates of visitation by females and those with low visitation rates. Only frequency matching was correlated with the rate at which females visited display lek arenas. We propose that the degree of frequency matching provides an unambiguous ideal against which dual-male courtship performance can be assessed. This aspect of song performance may provide information useful to females in assesing a potential mate's ability to form a cooperative long-term partnership. © 1995 Springer-Verlag.},\n bibtype = {article},\n author = {Trainer, Jill M. and McDonald, David B.},\n doi = {10.1007/BF00177404},\n journal = {Behavioral Ecology and Sociobiology},\n number = {4}\n}

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\n \n 1994\n \n \n (4)\n \n \n

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\n \n\n \n \n \n \n \n Annual variation in birds and plants of a tropical second-growth woodland.\n \n \n \n\n\n \n Loiselle, B.; and Blake, J.\n\n\n \n\n\n\n Condor, 96(2). 1994.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Annual variation in birds and plants of a tropical second-growth woodland},\n type = {article},\n year = {1994},\n volume = {96},\n id = {9ab5de3c-3bcd-327c-977a-509ea062237b},\n created = {2016-10-25T13:36:14.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2017-03-14T10:54:48.757Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Loiselle, B.A. and Blake, J.G.},\n journal = {Condor},\n number = {2}\n}

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\n \n\n \n \n \n \n \n Phylogenetic Analysis of the Evolution of Alternative Social Behavior in the Manakins (Aves: Pipridae).\n \n \n \n\n\n \n Prum, R., O.\n\n\n \n\n\n\n Evoltuion, 48(5): 1657-1675. 1994.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Phylogenetic Analysis of the Evolution of Alternative Social Behavior in the Manakins (Aves: Pipridae)},\n type = {article},\n year = {1994},\n pages = {1657-1675},\n volume = {48},\n id = {ceaf0997-79b0-3449-b836-da9e6f63f54a},\n created = {2018-04-22T22:19:24.069Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:24.069Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Prum, Richard O.},\n journal = {Evoltuion},\n number = {5}\n}

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\n \n\n \n \n \n \n \n Cooperative display and relatedness among males in a lek-mating bird.\n \n \n \n\n\n \n McDonald, D., B.; and Potts, W., K.\n\n\n \n\n\n\n Science (New York, N.Y.), 266(5187): 1030-1032. 1994.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Cooperative display and relatedness among males in a lek-mating bird.},\n type = {article},\n year = {1994},\n pages = {1030-1032},\n volume = {266},\n id = {ef357ce4-721c-38f9-afa5-d8c05298206e},\n created = {2018-04-22T22:19:27.711Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:27.711Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Long-tailed manakins mate in leks and cooperate in multiyear male-male partnerships. An alpha male is responsible for virtually all mating, whereas a beta male assists in the courtship displays. Such altruism by the beta male poses a problem for evolutionary theory because most theoretical treatments and empirical examples of cooperative behavior involve kin selection or reciprocity. Here it is shown that alpha and beta partners are not relatives and that reciprocity is not involved. Instead, direct, though long-delayed benefits to beta males are demonstrated, which include rare copulations, ascension to alpha status, and female lek fidelity. These benefits maintain this unusual form of male-male cooperation.},\n bibtype = {article},\n author = {McDonald, David B. and Potts, Wayne K.},\n doi = {10.1126/science.7973654},\n journal = {Science (New York, N.Y.)},\n number = {5187}\n}

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\n \n\n \n \n \n \n \n \n The annual cycle of the White-ruffed Manakin Corapipo leucorrhoa , a tropical frugivorous altitudinal migrant, and its food plants.\n \n \n \n \n\n\n \n Rosselli, L.\n\n\n \n\n\n\n Bird Conservation International, 4(2-3): 143-160. 9 1994.\n \n\n\n\n
\n\n\n\n \n \n $\"The$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {The annual cycle of the White-ruffed Manakin Corapipo leucorrhoa , a tropical frugivorous altitudinal migrant, and its food plants},\n type = {article},\n year = {1994},\n pages = {143-160},\n volume = {4},\n websites = {https://www.cambridge.org/core/product/identifier/S0959270900002732/type/journal_article},\n month = {9},\n day = {11},\n id = {0dc82253-9a1e-3ec8-a5cb-fd98dbf1f25a},\n created = {2019-10-13T22:29:58.533Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-13T22:29:58.533Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Frugivorous White-ruffed Manakins Corapipo leucorrhoa (Pipridae) showed pro nounced seasonal emigration from a pre-montane wet forest site (550 m) on the Atlantic slope of Costa Rica. “Resident” breeders left the area between August and October, and returned between February and April, at the onset of the breeding season. Female patterns differed from those of males primarily in later departure (October) and later return (April). I documented 57 fruit species in the diet at this locality and monitored phenology for 43 of those species, many of which were understorey members of the Melastomataceae. The emigration did not coincide with a period of local fruit shortage (relative to abundance at the same locality in other months), but the relative abundance and species composition of fruit resources in the areas to which the manakins migrated remains unknown. However, peak resources did coincide with the period in which recent fledglings would be commonest and the period during which most individuals were moulting prior ot emigration. Resources were lowest from November, when residents were absent, untilJune, well into the breeding season. Tentative evidence suggests considerable annual variation, possibly owing to differences in the timing of the rainy season. Individuals captured during the period when almost all “resident” breeders were absent (November) appeared to be transients, and were rarely recaptured. Weights differed between sexes, with females (χ = 12.5 ± 1.0) significantly heavier than males (χ = 11.1 ± 0.8). Males were lightest during the breeding season, intermediate in weight during the moulting period, and both sexes were heaviest during the migration period, when they accumulated subcutaneous fat. Females were lightest during the moult period, at which time many may also have dependent fledglings. Many other frugivores and nectarivores may engage in similar altitudinal migrations. Even where altitudinal migration is not possible, birds might migrate to other habitats with different fruit resources or phenologies. The design of nature reserves should accommodate the possibility of significant altitudinal (or cross-habitat) migration for many species of frugivores and nectarivores.},\n bibtype = {article},\n author = {Rosselli, Loreta},\n doi = {10.1017/S0959270900002732},\n journal = {Bird Conservation International},\n number = {2-3}\n}

\n

\n\n\n

\n Frugivorous White-ruffed Manakins Corapipo leucorrhoa (Pipridae) showed pro nounced seasonal emigration from a pre-montane wet forest site (550 m) on the Atlantic slope of Costa Rica. “Resident” breeders left the area between August and October, and returned between February and April, at the onset of the breeding season. Female patterns differed from those of males primarily in later departure (October) and later return (April). I documented 57 fruit species in the diet at this locality and monitored phenology for 43 of those species, many of which were understorey members of the Melastomataceae. The emigration did not coincide with a period of local fruit shortage (relative to abundance at the same locality in other months), but the relative abundance and species composition of fruit resources in the areas to which the manakins migrated remains unknown. However, peak resources did coincide with the period in which recent fledglings would be commonest and the period during which most individuals were moulting prior ot emigration. Resources were lowest from November, when residents were absent, untilJune, well into the breeding season. Tentative evidence suggests considerable annual variation, possibly owing to differences in the timing of the rainy season. Individuals captured during the period when almost all “resident” breeders were absent (November) appeared to be transients, and were rarely recaptured. Weights differed between sexes, with females (χ = 12.5 ± 1.0) significantly heavier than males (χ = 11.1 ± 0.8). Males were lightest during the breeding season, intermediate in weight during the moulting period, and both sexes were heaviest during the migration period, when they accumulated subcutaneous fat. Females were lightest during the moult period, at which time many may also have dependent fledglings. Many other frugivores and nectarivores may engage in similar altitudinal migrations. Even where altitudinal migration is not possible, birds might migrate to other habitats with different fruit resources or phenologies. The design of nature reserves should accommodate the possibility of significant altitudinal (or cross-habitat) migration for many species of frugivores and nectarivores.\n

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\n \n 1993\n \n \n (3)\n \n \n

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\n \n\n \n \n \n \n \n Spatial distribution of understory fruit-eating birds and fruiting plants in a neotropical lowland wet forest.\n \n \n \n\n\n \n Loiselle, B.; and Blake, J.\n\n\n \n\n\n\n Vegetatio, 107-108(1). 1993.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Spatial distribution of understory fruit-eating birds and fruiting plants in a neotropical lowland wet forest},\n type = {article},\n year = {1993},\n keywords = {[Costa Rica, Diet, Fruit-eating birds, Fruiting pl},\n volume = {107-108},\n id = {371e42d1-d4cc-3ea7-91f9-6db0f119e843},\n created = {2016-10-25T13:36:14.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2017-03-14T10:54:48.757Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Spatial distribution of fruit-eating birds and fruiting shrubs of the Melastomataceae and Rubiaceae were examined on a 10 ha plot in tropical lowland wet forest of Costa Rica. Many plant species and most birds exhibited considerable spatial variation in their occurrence on the plot, as indicated by the distribution patterns of shrubs with ripe fruits and captures in mist nets, respectively. In many cases, captures of fruit-eating birds were correlated with abundance of fruiting plants, particularly for species that rely heavily on fruits. In general, fruit-eating birds concentrated their use of the plot to areas rich in fruiting shrubs. This differential use of certain areas likely results in differential visitation to fruiting plants located in these areas and in a heterogeneous dissemination of seeds into the habitat. © 1993 Kluwer Academic Publishers.},\n bibtype = {article},\n author = {Loiselle, B.A. and Blake, J.G.},\n doi = {10.1007/BF00052221},\n journal = {Vegetatio},\n number = {1}\n}

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\n \n\n \n \n \n \n \n Optimality, mutation and the evolution of ageing.\n \n \n \n\n\n \n Partridge, L.; and Barton, N., H.\n\n\n \n\n\n\n Nature, 362: 305-311. 1993.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Optimality, mutation and the evolution of ageing},\n type = {article},\n year = {1993},\n pages = {305-311},\n volume = {362},\n id = {d5e03b8f-c2ed-3a83-a669-a16165e17e92},\n created = {2018-04-22T22:19:26.310Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:26.310Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Partridge, L. and Barton, N. H.},\n journal = {Nature}\n}

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\n \n\n \n \n \n \n \n \n Demographic consequences of sexual selection in the long-tailed manakin.\n \n \n \n \n\n\n \n McDonald, D., B.\n\n\n \n\n\n\n Behavioral Ecology, 4(4): 297-309. 1993.\n \n\n\n\n
\n\n\n\n \n \n $\"Demographic$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Demographic consequences of sexual selection in the long-tailed manakin},\n type = {article},\n year = {1993},\n keywords = {Age structure,Comparative demography,Delayed production,Elasticity,Life history,Mankin,Pipridae,Re-productivevalue,Sensitive analysis,Sexual selection[Behav Ecol 4:297-309 (1993)]},\n pages = {297-309},\n volume = {4},\n websites = {https://academic.oup.com/beheco/article-lookup/doi/10.1093/beheco/4.4.297},\n id = {c9deb429-72a5-3e23-88d0-7f9874b846e5},\n created = {2019-10-13T22:29:58.944Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-13T22:29:58.944Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Demographic divergence between the sexes is a major consequence of sexual selection. Matrix-based demographic measures, including the sensitivity and elasticity of λ (population growth rate, fitness) to survival and fertility rates are powerful indexes of intersexual divergence. Many morphological, behavioral, and ecological differences distinguish males and females in lekking long-tailed manakins (Chiroxiphia linearis), and none is more dramatic than the demographic divergence. Only 16 of 142 (8%) banded males copulated during an 8-year period. The mean estimated age of male copulators was 10.1 years (SD = 2.2), and only 5 of 166 copulations were by males ≦8 years old. Females probably begin reproduction at age 1 or 2. The reproductive value curve reached a peak of 15.0 for 12th-year males, versus 2.7 for sixth-year females. The matrix-based elasticity of X to survival rates was greater in males (91% of total elasticity) than in females (80% of total). In a literature-based, interspecific comparison, the difference in elasticity to survival between the male and female manakins (91-80=11; ranks 2 and 9 of 16 species/sex combinations) was greater than that between the sexes in northern elephant seals (90-84=6; ranks 3 and 8), which have the highest variance of male mating success documented for mammals; red deer (88-87=1; ranks 4 and 5); Galapagos cactus finches (79-74=5; ranks 10 and 12); and acorn woodpeckers (76-74=2; ranks 11 and 13). In the face of continuing debate over appropriate measures of sexual selection, matrix-based demographic techniques facilitate quantitative, comparative analyses of the life-history consequences of sexual selection. Measures of intersexual demographic divergence may provide insights into heretofore puzzling instances of sexual selection in species with little dimorphism in size or ornament. © 1993 International Society for Behavioral Ecology.},\n bibtype = {article},\n author = {McDonald, David B.},\n doi = {10.1093/beheco/4.4.297},\n journal = {Behavioral Ecology},\n number = {4}\n}

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\n \n 1992\n \n \n (2)\n \n \n

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\n \n\n \n \n \n \n \n \n Foraging Behavior and Diet of the Helmeted Manakin.\n \n \n \n \n\n\n \n Marini, M. A. & Cavalcanti, R.\n\n\n \n\n\n\n The Condor, 94(1): 151-158. 2 1992.\n \n\n\n\n
\n\n\n\n \n \n $\"Foraging$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@article{\n title = {Foraging Behavior and Diet of the Helmeted Manakin},\n type = {article},\n year = {1992},\n keywords = {antilophia galeata,diet,foraging behavior,frugivory,helmeted manakin},\n pages = {151-158},\n volume = {94},\n websites = {https://academic.oup.com/condor/article/94/1/151-158/5189403},\n month = {2},\n id = {8c3580a7-af6e-33ff-80c5-a204fe60ce5c},\n created = {2019-10-13T22:29:58.556Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-15T17:59:11.844Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {I studied the foraging behavior and diet of the Helmeted Manakin (Antilophia galeata) in the gallery forests in the cerrado (savanna) region of central Brazil. Observations of 21 color-marked birds were made from April 1988 to March 1989 on a 2.5-ha study plot in a gallery forest. They showed that Helmeted Manakins are highly frugivorous (85.7% of foraging observations were on fruits; all stomach contents analyzed had fruits while arthro- pods were present in only 24.5%; and 96.2% of the fecal masses collected under a nest had fruits while 6 1.5% had arthropods); and take fruit mostly (46.5% of the observations) while in flight (sallies). Helmeted Manakins ate fruits of 17 species of 12 families of plants, as well as arthropods such as Araneae, Orthoptera, Coleoptera, Diptera, and Hymenoptera. One to six Helmeted Manakins attended 63.6% of the mixed-species flocks observed. Green birds (females and immature males) foraged at lower heights (6.5 * 4.6 m) than adult and subadult males, which foraged at a height (8.2 f 4.4 m) closer to where they sang (10.2 + 3.8 m) or called (8.4 f 4.8 m). The Helmeted Manakin showed similarities to other manakins in the diet and foraging tactics used, even though it may not be promiscuous (Marini and Cavalcanti, in prep.) and has an unique geographical distribution among dichromatic manakins.},\n bibtype = {article},\n author = {Marini, M. A. & Cavalcanti, R.},\n doi = {10.2307/1368804},\n journal = {The Condor},\n number = {1}\n}

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\n \n\n \n \n \n \n \n \n The evolution of leks through female choice: differential clustering and space utilization in six sympatric manakins.\n \n \n \n \n\n\n \n Théry, M.\n\n\n \n\n\n\n Behavioral Ecology and Sociobiology, 30(3-4): 227-237. 4 1992.\n \n\n\n\n
\n\n\n\n \n \n $\"The$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {The evolution of leks through female choice: differential clustering and space utilization in six sympatric manakins},\n type = {article},\n year = {1992},\n pages = {227-237},\n volume = {30},\n websites = {http://link.springer.com/10.1007/BF00166707},\n month = {4},\n id = {0abcda28-1fd0-3139-b1f6-bdca9ffb1c06},\n created = {2019-10-13T22:29:58.937Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-02-26T17:26:36.962Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {y. The degree to which lekking and non-lekking male manakins select display sites in order to maximise proximity to females was examined by contrasting move- ments of females with male dispersion. Data on female ing places and stream bathing sites. None of the females monitored by radio-tracking ranges were 3-7 times larger than those of adult males. Female movements were concentrated around leks, fruit- significant correlations were found between female home-range size and male clustering (distances between neighboring leks and distances between neighboring in order to visit males on leks. On the contrary, feeding bouts of females frequently preceded a visit to potential mates at neighboring leks. Despite small sample sizes, expanded her normal range dispersion or female ranges. On the other hand, males and females of the only non-lekking species exhibited similar use of space and home-range size. Male settle- ment at sites with high levels of female traffic showed that the hotspot model is adequate to explain differences in male dispersion among sympatric lekking species. males), as predicted by the female choice model and the hotspot model. Adult and immature male home- range sizes were not significantly correlated with male "despotic" rules generated through bias in female choice or male-male interference. It is proposed that the evolu- tion of leks is ecologically motivated by the spatio-tem- this, a foraging ecology that promotes high mobility by females and the magnetic effect of mating skew in partic- ular males may have favored clustering on exploded leks. Later, the development of male-male interference and poral distribution of trophic resources, initially leading to a dispersed male-advertisement polygyny. Following ics. In fact, both the hotspot model and the attractive- ness hypothesis appear to shape male dispersion on leks: males appear to settle under hotspot conditions with Comparisons with other studies suggest that apparent female choice could be overidden by past and present male-male interactions or female mate-comparison tact- visiting patterns, male courtship disruption, and mating skew were also collected over three successive breeding seasons. For the five lek-breeding species, female home- the increasing female home-range size could have led to the evolution of classical leks.},\n bibtype = {article},\n author = {Théry, Marc},\n doi = {10.1007/BF00166707},\n journal = {Behavioral Ecology and Sociobiology},\n number = {3-4}\n}

\n

\n\n\n

\n y. The degree to which lekking and non-lekking male manakins select display sites in order to maximise proximity to females was examined by contrasting move- ments of females with male dispersion. Data on female ing places and stream bathing sites. None of the females monitored by radio-tracking ranges were 3-7 times larger than those of adult males. Female movements were concentrated around leks, fruit- significant correlations were found between female home-range size and male clustering (distances between neighboring leks and distances between neighboring in order to visit males on leks. On the contrary, feeding bouts of females frequently preceded a visit to potential mates at neighboring leks. Despite small sample sizes, expanded her normal range dispersion or female ranges. On the other hand, males and females of the only non-lekking species exhibited similar use of space and home-range size. Male settle- ment at sites with high levels of female traffic showed that the hotspot model is adequate to explain differences in male dispersion among sympatric lekking species. males), as predicted by the female choice model and the hotspot model. Adult and immature male home- range sizes were not significantly correlated with male \"despotic\" rules generated through bias in female choice or male-male interference. It is proposed that the evolu- tion of leks is ecologically motivated by the spatio-tem- this, a foraging ecology that promotes high mobility by females and the magnetic effect of mating skew in partic- ular males may have favored clustering on exploded leks. Later, the development of male-male interference and poral distribution of trophic resources, initially leading to a dispersed male-advertisement polygyny. Following ics. In fact, both the hotspot model and the attractive- ness hypothesis appear to shape male dispersion on leks: males appear to settle under hotspot conditions with Comparisons with other studies suggest that apparent female choice could be overidden by past and present male-male interactions or female mate-comparison tact- visiting patterns, male courtship disruption, and mating skew were also collected over three successive breeding seasons. For the five lek-breeding species, female home- the increasing female home-range size could have led to the evolution of classical leks.\n

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\n \n 1991\n \n \n (1)\n \n \n

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\n \n \n

\n \n\n \n \n \n \n \n Temporal variation in birds and fruits along an elevational gradient in Costa Rica.\n \n \n \n\n\n \n Loiselle, B., A.; and Blake, J., G.\n\n\n \n\n\n\n Ecology, 72(1): 180-193. 1991.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Temporal variation in birds and fruits along an elevational gradient in Costa Rica},\n type = {article},\n year = {1991},\n pages = {180-193},\n volume = {72},\n id = {9fd6ea4d-8994-3d9f-ae73-2e0fc86bb66e},\n created = {2016-10-25T13:36:14.000Z},\n file_attached = {false},\n profile_id = {fef90585-9732-305d-9152-d769336c9906},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:23.921Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {Peak frugivore capture rates occurred during peak periods of ripe fruit abundance. Altitudinal migrants left lower montane (1000 m) forest during periods of fruit scarcity and were present in lowland (50 m) and foothill (500 m) forest when ripe fruit was abundant. Migrants, both altitudinal and temperate, accumulated fat before migration, and perhaps (for altitudinal migrants) in anticipation of breeding. Some residents also put on fat before breeding. Breeding was seasonal at all forests and occurred when ripe fruit abundance was low. -from Authors},\n bibtype = {article},\n author = {Loiselle, B. A. and Blake, J. G.},\n doi = {10.2307/1938913},\n journal = {Ecology},\n number = {1}\n}

\n

\n\n\n\n\n\n

\n

\n \n 1990\n \n \n (3)\n \n \n

\n

\n \n \n

\n \n\n \n \n \n \n \n \n Lek behaviour in birds: do displaying males reduce nest predation?.\n \n \n \n \n\n\n \n Phillips, J., B.\n\n\n \n\n\n\n Animal Behaviour, 39(3): 555-565. 3 1990.\n \n\n\n\n
\n\n\n\n \n \n $\"Lek$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Lek behaviour in birds: do displaying males reduce nest predation?},\n type = {article},\n year = {1990},\n pages = {555-565},\n volume = {39},\n websites = {http://linkinghub.elsevier.com/retrieve/pii/S0003347205804221},\n month = {3},\n id = {b79879bc-01f5-3ecc-8744-44102a6a8019},\n created = {2018-04-22T22:19:25.565Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:25.565Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Phillips, John B.},\n doi = {10.1016/S0003-3472(05)80422-1},\n journal = {Animal Behaviour},\n number = {3}\n}

\n

\n\n\n\n

\n\n\n

\n \n\n \n \n \n \n \n \n Phylogenetic Analysis of the Evolution of Display Behavior in the Neotropical Manakins (Aves: Pipridae).\n \n \n \n \n\n\n \n Prum, R., O.\n\n\n \n\n\n\n Ethology, 84: 202-231. 4 1990.\n \n\n\n\n
\n\n\n\n \n \n $\"Phylogenetic$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Phylogenetic Analysis of the Evolution of Display Behavior in the Neotropical Manakins (Aves: Pipridae)},\n type = {article},\n year = {1990},\n pages = {202-231},\n volume = {84},\n websites = {http://doi.wiley.com/10.1111/j.1439-0310.1990.tb00798.x},\n month = {4},\n day = {26},\n id = {551e21ed-e1f0-3fe3-8c11-76c7d9ee45b7},\n created = {2018-04-22T22:19:27.228Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:27.228Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Phylogenetic systematic methods were applied in an investigation of the evolution of lek display behavior in the Neotropical manakins (Aves: Pipridae). Results of a previous investigation of the syringeal morphology of manakins were used as a behaviorally independent estimate of the phylogeny of the family. Three phylogenetic analyses of 44 display characters were performed: (1) display elements alone were used as systematic characters; (2) display elements and syringeal characters were combined into a single phylogenetic analysis; and (3) the behavioral characters were parsimoniously superimposed on the syringeal hypothesis of phylogeny. The results of the first two analyses were highly congruent with the independent syringeal hypothesis of phylogeny. Most detailed behavioral similarities among manakins are homologs.},\n bibtype = {article},\n author = {Prum, Richard O.},\n doi = {10.1111/j.1439-0310.1990.tb00798.x},\n journal = {Ethology}\n}

\n

\n\n\n\n\n\n

\n\n\n

\n \n\n \n \n \n \n \n Display repertoire and social organization of the White-fronted and White-throated manakins.\n \n \n \n\n\n \n Théry, M.\n\n\n \n\n\n\n The Wilson bulletin (Wilson Ornithological Society), 102(1): 123-130. 1990.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Display repertoire and social organization of the White-fronted and White-throated manakins},\n type = {article},\n year = {1990},\n keywords = {America,Amérique,Aves,Breeding behavior,Comportement reproducteur,Comportement sexuel,Corapipo gutturalis,Etude sur terrain,Field study,French Guiana,Guyane Française,Interaction sociale,Lek,Mating system,Organisation sociale,Pipra serena,Sexual behavior,Social interaction,Social organization,South America,Système croisement,Vertebrata},\n pages = {123-130},\n volume = {102},\n id = {724905af-bc65-301c-b0f3-e2699661aede},\n created = {2019-10-13T22:29:59.468Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2020-02-26T17:26:36.964Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Wilson Bull.},\n bibtype = {article},\n author = {Théry, Marc},\n journal = {The Wilson bulletin (Wilson Ornithological Society)},\n number = {1}\n}

\n

\n\n\n\n\n\n

\n

\n \n 1989\n \n \n (1)\n \n \n

\n

\n \n \n

\n \n\n \n \n \n \n \n Correlates of male mating success in a lekking bird with male- male cooperation.\n \n \n \n\n\n \n McDonald, D., B.\n\n\n \n\n\n\n Animal Behaviour, 37: 1007-1022. 1989.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Correlates of male mating success in a lekking bird with male- male cooperation},\n type = {article},\n year = {1989},\n keywords = {Aves,Bird,Lekking,birds,cooperation,male,male mating success,males,mating,mating success,reproductive success,sexual selection,success},\n pages = {1007-1022},\n volume = {37},\n id = {b821822c-ba15-35a1-a3cc-6df40617bb27},\n created = {2018-04-22T22:19:25.957Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-04-22T22:19:25.957Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {McDonald, D B},\n journal = {Animal Behaviour}\n}

\n

\n\n\n\n

\n\n\n\n\n\n

\n

\n \n 1987\n \n \n (1)\n \n \n

\n

\n \n \n

\n \n\n \n \n \n \n \n \n Sugar-Tasting Ability and Fruit Selection in Tropical Fruit-Eating Birds.\n \n \n \n \n\n\n \n Levey, D., J.\n\n\n \n\n\n\n The Auk, 104(2): 173-179. 4 1987.\n \n\n\n\n
\n\n\n\n \n \n $\"Sugar-Tasting$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

\n

@article{\n title = {Sugar-Tasting Ability and Fruit Selection in Tropical Fruit-Eating Birds},\n type = {article},\n year = {1987},\n keywords = {America,Aves,Central America,Comportement alimentaire,Costa Rica,Euphonia gouldi,Feeding behavior,Feeding preference,Frugivore,Frugivorous,Gustation,Manacus candei,Pipra mentalis,Préférence alimentaire,Ramphocelus passerinii,Saveur sucrée,Sweet taste,Tachyphonus delatrii,Thraupis palmarum,Tropical zone,Vertebrata,Zone tropicale},\n pages = {173-179},\n volume = {104},\n websites = {https://academic.oup.com/auk/article/104/2/173/5192975},\n month = {4},\n day = {1},\n id = {bcd0075a-1df2-3f2b-bb03-563a5824bd21},\n created = {2019-10-13T22:29:58.532Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-13T22:29:58.532Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The sugar-tasting abilities of four species of tanagers and two species of manakins were tested. Three tanager species were able to detect differences in diets containing 8%, 10%, and 12% sugar. In pairwise choice trials, they preferred the diet highest in sugar. Neither species of manakin discriminated among the three diets. This apparent difference in tasting abilities of tanagers and manakins may be a result of their fruit-handling techniques. Tanagers crush fruits in their bills, thereby releasing juices onto their tongues. Manakins swallow fruits whole; their tongues rarely encounter fruit juice. Hence, manakins' fruit-handling technique is poorly suited for sensing the taste cues in fruit juices. Variation in fruit sugar concentration is common within and among plant species and is great enough to be detected by birds. Birds probably have selected for sweeter fruits.},\n bibtype = {article},\n author = {Levey, Douglas J.},\n doi = {10.1093/auk/104.2.173},\n journal = {The Auk},\n number = {2}\n}

\n

\n\n\n\n\n\n

\n

\n \n 1985\n \n \n (1)\n \n \n

\n

\n \n \n

\n \n\n \n \n \n \n \n \n Observations of the White-Fronted Manakin (Pipra serena) in Suriname.\n \n \n \n \n\n\n \n Prum, R., O.\n\n\n \n\n\n\n The Auk, 102(2): 384-387. 4 1985.\n \n\n\n\n
\n\n\n\n \n \n $\"Observations$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Observations of the White-Fronted Manakin (Pipra serena) in Suriname},\n type = {article},\n year = {1985},\n pages = {384-387},\n volume = {102},\n websites = {https://academic.oup.com/auk/article/102/2/384-387/5186257},\n month = {4},\n id = {361ec4b2-99d8-32b1-a04d-44a09c81089b},\n created = {2018-04-22T22:19:22.788Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:25.306Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Auk},\n bibtype = {article},\n author = {Prum, Richard O},\n doi = {10.2307/4086783},\n journal = {The Auk},\n number = {2}\n}

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\n\n\n\n\n\n

\n

\n \n 1984\n \n \n (1)\n \n \n

\n

\n \n \n

\n \n\n \n \n \n \n \n \n Fruit Choice in Neotropical Birds: The Effect of Distance Between Fruits on Preference Patterns.\n \n \n \n \n\n\n \n Levey, D., J.; Moermond, T., C.; and Denslow, J., S.\n\n\n \n\n\n\n Ecology, 65(3): 844-850. 6 1984.\n \n\n\n\n
\n\n\n\n \n \n $\"Fruit$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Fruit Choice in Neotropical Birds: The Effect of Distance Between Fruits on Preference Patterns},\n type = {article},\n year = {1984},\n pages = {844-850},\n volume = {65},\n websites = {http://doi.wiley.com/10.2307/1938058},\n month = {6},\n id = {f7eb8ff6-203d-3691-88e8-9b601e8355b8},\n created = {2019-10-13T22:29:59.101Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-13T22:29:59.101Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Ecology},\n bibtype = {article},\n author = {Levey, Douglas J. and Moermond, Timothy C. and Denslow, Julie Sloan},\n doi = {10.2307/1938058},\n journal = {Ecology},\n number = {3}\n}

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\n\n\n\n\n\n

\n

\n \n 1982\n \n \n (1)\n \n \n

\n

\n \n \n

\n \n\n \n \n \n \n \n \n Nocturnal Hypothermia and Oxygen Consumption in Manakins.\n \n \n \n \n\n\n \n Bucher, T., L.; and Worthington, A.\n\n\n \n\n\n\n The Condor, 84(3): 327. 8 1982.\n \n\n\n\n
\n\n\n\n \n \n $\"Nocturnal$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Nocturnal Hypothermia and Oxygen Consumption in Manakins},\n type = {article},\n year = {1982},\n pages = {327},\n volume = {84},\n websites = {https://academic.oup.com/condor/article/84/3/327-331/5204881},\n month = {8},\n id = {9cbef9d8-985c-33bb-b64c-80275cff801e},\n created = {2019-10-13T22:29:59.101Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-13T22:29:59.101Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Manacus vitellinus},\n bibtype = {article},\n author = {Bucher, Theresa L. and Worthington, Andrea},\n doi = {10.2307/1367377},\n journal = {The Condor},\n number = {3}\n}

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\n\n\n\n\n\n

\n

\n \n 1981\n \n \n (1)\n \n \n

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\n \n \n

\n \n\n \n \n \n \n \n \n Cooperative behavior and social organization of the Swallow-tailed Manakin (Chiroxiphia caudata).\n \n \n \n \n\n\n \n Foster, M., S.\n\n\n \n\n\n\n Behavioral Ecology and Sociobiology, 9(3): 167-177. 10 1981.\n \n\n\n\n
\n\n\n\n \n \n $\"Cooperative$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Cooperative behavior and social organization of the Swallow-tailed Manakin (Chiroxiphia caudata)},\n type = {article},\n year = {1981},\n pages = {167-177},\n volume = {9},\n websites = {http://link.springer.com/10.1007/BF00302934},\n month = {10},\n id = {f8320473-9fff-313f-b5fa-78fd48dcda5c},\n created = {2018-04-22T22:19:23.334Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2018-05-02T19:09:37.047Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Foster, Mercedes S.},\n doi = {10.1007/BF00302934},\n journal = {Behavioral Ecology and Sociobiology},\n number = {3}\n}

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\n\n\n\n

\n\n\n\n\n\n

\n

\n \n 1978\n \n \n (1)\n \n \n

\n

\n \n \n

\n \n\n \n \n \n \n \n Display and related behavior of the Wire-tailed Manakin.\n \n \n \n\n\n \n Schwartz, P.; and Snow, D., W.\n\n\n \n\n\n\n The Living Bird, 17: 51-78. 1978.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

\n

@article{\n title = {Display and related behavior of the Wire-tailed Manakin},\n type = {article},\n year = {1978},\n pages = {51-78},\n volume = {17},\n id = {e06a7484-17f7-36ef-9801-d67c19437fa2},\n created = {2018-04-22T22:19:26.616Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-02-01T02:52:23.639Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Schwartz, Paul and Snow, David W},\n journal = {The Living Bird}\n}

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\n \n 1976\n \n \n (1)\n \n \n

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\n \n\n \n \n \n \n \n Lek behavior in the Golden-headed Manakin, Pipra erythrocephala in Trinidad (West Indies).\n \n \n \n\n\n \n Lill, A.\n\n\n \n\n\n\n Volume 83 1976.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@book{\n title = {Lek behavior in the Golden-headed Manakin, Pipra erythrocephala in Trinidad (West Indies)},\n type = {book},\n year = {1976},\n source = {Zeitschrift fur Tierpsychologie Beihefte},\n pages = {1-84},\n volume = {83},\n id = {b5233c37-cee3-32b9-b38e-dd6251d856c5},\n created = {2019-10-03T13:47:35.647Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-03T13:47:35.647Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Scanned copy},\n bibtype = {book},\n author = {Lill, Alan}\n}

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\n\n\n\n\n\n

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\n \n 1974\n \n \n (1)\n \n \n

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\n \n \n

\n \n\n \n \n \n \n \n \n Sexual Behavior of the Lek-forming White-bearded Manakin (Manacus manacus trinitatis Hartert).\n \n \n \n \n\n\n \n Lill, A.\n\n\n \n\n\n\n Zeitschrift für Tierpsychologie, 36: 1-36. 4 1974.\n \n\n\n\n
\n\n\n\n \n \n $\"Sexual$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Sexual Behavior of the Lek-forming White-bearded Manakin (Manacus manacus trinitatis Hartert)},\n type = {article},\n year = {1974},\n pages = {1-36},\n volume = {36},\n websites = {http://doi.wiley.com/10.1111/j.1439-0310.1974.tb02126.x},\n month = {4},\n day = {26},\n id = {2e6badbf-7ebc-32aa-946a-df6d8780c349},\n created = {2019-10-03T13:47:34.785Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-03T14:01:17.510Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Lill, Alan},\n doi = {10.1111/j.1439-0310.1974.tb02126.x},\n journal = {Zeitschrift für Tierpsychologie}\n}

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\n \n 1969\n \n \n (1)\n \n \n

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\n \n\n \n \n \n \n \n \n Life Histories of Central American birds III: families Cotingidae, Pipridae, Formicariidae, Furnariidae, Dendrocolaptidae, and Picidae.\n \n \n \n \n\n\n \n Skutch, A., F.\n\n\n \n\n\n\n Pacific Coast Avifauna, 35: 580. 1969.\n \n\n\n\n
\n\n\n\n \n \n $\"Life$ Website\n \n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Life Histories of Central American birds III: families Cotingidae, Pipridae, Formicariidae, Furnariidae, Dendrocolaptidae, and Picidae},\n type = {article},\n year = {1969},\n pages = {580},\n volume = {35},\n websites = {http://scholar.google.com/scholar?hl=en&btnG=Search&q=intitle:Life+Histories+of+Central+American+Birds+III#0%5Cnhttp://scholar.google.com/scholar?hl=en&btnG=Search&q=intitle:Life+histories+of+Central+American+birds+III.+FAMILIES+COTINGIDAE,+PIPRIDAE,+FORM},\n id = {78eb7820-495f-3a4d-b02a-cb373bd35c2f},\n created = {2019-10-08T16:12:02.991Z},\n file_attached = {false},\n profile_id = {87852a3f-59cb-3411-b61d-24d306a50842},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-08T16:12:02.991Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Skutch, Alexander F},\n doi = {10.1126/science.132.3443.1882-b},\n journal = {Pacific Coast Avifauna}\n}

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\n \n 1967\n \n \n (1)\n \n \n

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\n \n\n \n \n \n \n \n Courtship behavior in the Manakins (Pipridae): A review.\n \n \n \n\n\n \n Sick, H.\n\n\n \n\n\n\n The Living Bird. 1967.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Courtship behavior in the Manakins (Pipridae): A review},\n type = {article},\n year = {1967},\n id = {0e048470-633f-3947-b589-489eeea4676f},\n created = {2019-10-08T16:12:03.005Z},\n file_attached = {false},\n profile_id = {87852a3f-59cb-3411-b61d-24d306a50842},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-08T16:12:03.005Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Sick, Helmut},\n journal = {The Living Bird}\n}

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\n \n 1962\n \n \n (2)\n \n \n

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\n \n\n \n \n \n \n \n A field study of the black and white manakin Manacus manacus, in Trinidad.\n \n \n \n\n\n \n Snow, D., W.\n\n\n \n\n\n\n Zoologica: scientific contributions of the New York Zoological Society, pages 65-104. New York Zoological Society, 1962.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n\n\n\n

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@inbook{\n type = {inbook},\n year = {1962},\n keywords = {icle},\n pages = {65-104},\n publisher = {New York Zoological Society},\n id = {225eadec-3c38-3e9e-b798-f9c31a27e617},\n created = {2019-10-08T16:12:02.941Z},\n file_attached = {false},\n profile_id = {87852a3f-59cb-3411-b61d-24d306a50842},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2021-01-08T01:50:18.066Z},\n read = {true},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {inbook},\n author = {Snow, David W},\n doi = {10.1017/CBO9781107415324.004},\n chapter = {A field study of the black and white manakin Manacus manacus, in Trinidad},\n title = {Zoologica: scientific contributions of the New York Zoological Society}\n}

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\n \n\n \n \n \n \n \n A field study of the golden-headed manakin, Pipra erythrocephala, in Trinidad, W.I.\n \n \n \n\n\n \n Snow, D., W.\n\n\n \n\n\n\n Zoologica: New York Zoological Society, 47(15): 183-198. 1962.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {A field study of the golden-headed manakin, <i>Pipra erythrocephala</i>, in Trinidad, W.I.},\n type = {article},\n year = {1962},\n pages = {183-198},\n volume = {47},\n id = {1df61c18-bc66-3cd7-81e7-bfef4c5901ac},\n created = {2019-10-08T16:12:02.945Z},\n file_attached = {false},\n profile_id = {87852a3f-59cb-3411-b61d-24d306a50842},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-08T16:12:02.945Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n bibtype = {article},\n author = {Snow, David W},\n journal = {Zoologica: New York Zoological Society},\n number = {15}\n}

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\n \n 1959\n \n \n (1)\n \n \n

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\n \n\n \n \n \n \n \n Die Balz der Schmuckvögel (Pipridae).\n \n \n \n\n\n \n Sick, H.\n\n\n \n\n\n\n Journal of Ornithology, 100(3): 269-302. 1959.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n \n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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@article{\n title = {Die Balz der Schmuckvögel (Pipridae)},\n type = {article},\n year = {1959},\n pages = {269-302},\n volume = {100},\n id = {f75de4cb-8787-3893-8a49-219544e37ffb},\n created = {2019-10-03T13:47:34.771Z},\n file_attached = {false},\n profile_id = {7a7fbefd-9b16-3d36-a801-6375c4245079},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-10-03T13:47:34.771Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {Manakins, lek,},\n bibtype = {article},\n author = {Sick, Helmut},\n doi = {10.1007/BF01671123},\n journal = {Journal of Ornithology},\n number = {3}\n}

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\n \n undefined\n \n \n (2)\n \n \n

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\n \n\n \n \n \n \n \n \n César Cestari.\n \n \n \n \n\n\n \n \n\n\n \n\n\n\n Technical Report .\n \n\n\n\n
\n\n\n\n \n \n $\"César$ Paper\n \n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n

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@techreport{\n title = {César Cestari},\n type = {techreport},\n keywords = {Courtship,Dominance,Interaction,Juvenile,Manakin,Pipridae,Sexual selection},\n id = {7e685a45-cf76-3ec6-b629-cc2ebed75435},\n created = {2019-02-18T17:41:55.491Z},\n file_attached = {true},\n profile_id = {d05effc8-927f-32e8-a098-4b34a7465a6a},\n group_id = {e19eccf8-8a32-36a0-8587-1c846ce7d9a0},\n last_modified = {2019-02-18T17:41:56.127Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {• Adult males of lekking species compete with each other during sexual displays to attract females. Juvenile males usually are inexperienced in displays and they have minimal chances of attracting females that visit adults. Despite this supposed lack of competition between adults and juveniles, inexperienced juveniles of the White-bearded Manakin (Manacus manacus) that try to rehearse displays in lek areas may be chased aggressively by adult males. Here, I describe same-sex mounting behavior between M. manacus adults and juveniles. Two juvenile males entered the arenas of two high-ranking adults and rehearsed jump-snap display soon after they were mounted by adults. Adults did not chase the juveniles, showing no immediate competition or aggressiveness. Four years later, the same (individually-marked) juveniles had become established adults on the same lek areas where the same-sex mounting behavior was recorded. For juveniles, the same-sex mounting behavior may facilitate their approach to arenas of adults and acquisition of display experience. For adults, benefits derived from such behavior may include social hierarchy imposition and avoidance of conflicts with potentially future newcomer juvenile males in lek areas. However , alternative explanations, such as mistaking juvenile males for females by adult males, cannot be ruled out. Resumo • O comportamento de montar entre jovens e adultos machos da rendeira (Manacus manacus) Machos adultos que possuem o sistema reprodutivo de lek competem intensamente durante exibições sexuais para atraírem fêmeas. Machos juvenis geralmente possuem pouca experiência em exibições e portanto, eles possuem pou-cas chances de atraírem as fêmeas que visitam machos adultos. Apesar desta suposta falta de competição entre machos adultos e jovens, alguns jovens inexperientes de rendeiras (Manacus manacus) que tentam praticar exibições podem ser perseguidos por adultos agressivos. No presente estudo, eu descrevo o comportamento de montar, car-acterístico da cópula entre machos e fêmeas, entre machos adultos e machos jovens da rendeira. Dois machos jovens praticaram manobras de exibição em duas arenas de machos adultos logo depois que foram montados pelos mesmos adultos. Os adultos não perseguiram estes machos jovens, evidenciando nenhuma competição ou agressividade. Qua-tro anos depois, os mesmos jovens (individualmente marcados) se estabeleceram nas mesmas áreas de lek onde o comportamento de montar foi registrado. Para os jovens, o comportamento de montar pode facilitar a aproximação em arenas de adultos e a aquisição de experiência em exibições. Para os adultos, os benefícios derivados do compor-tamento de montar podem incluir imposição de hierarquia social sobre outros machos jovens e eliminação de futuros conflitos com potenciais machos jovens que queiram se estabelecer nas áreas de lek. Apesar dos resultados, um pos-sível erro de identificação de sexo entre machos jovens e fêmeas por machos adultos não é descartado.},\n bibtype = {techreport},\n author = {}\n}

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\n\n\n

\n • Adult males of lekking species compete with each other during sexual displays to attract females. Juvenile males usually are inexperienced in displays and they have minimal chances of attracting females that visit adults. Despite this supposed lack of competition between adults and juveniles, inexperienced juveniles of the White-bearded Manakin (Manacus manacus) that try to rehearse displays in lek areas may be chased aggressively by adult males. Here, I describe same-sex mounting behavior between M. manacus adults and juveniles. Two juvenile males entered the arenas of two high-ranking adults and rehearsed jump-snap display soon after they were mounted by adults. Adults did not chase the juveniles, showing no immediate competition or aggressiveness. Four years later, the same (individually-marked) juveniles had become established adults on the same lek areas where the same-sex mounting behavior was recorded. For juveniles, the same-sex mounting behavior may facilitate their approach to arenas of adults and acquisition of display experience. For adults, benefits derived from such behavior may include social hierarchy imposition and avoidance of conflicts with potentially future newcomer juvenile males in lek areas. However , alternative explanations, such as mistaking juvenile males for females by adult males, cannot be ruled out. Resumo • O comportamento de montar entre jovens e adultos machos da rendeira (Manacus manacus) Machos adultos que possuem o sistema reprodutivo de lek competem intensamente durante exibições sexuais para atraírem fêmeas. Machos juvenis geralmente possuem pouca experiência em exibições e portanto, eles possuem pou-cas chances de atraírem as fêmeas que visitam machos adultos. Apesar desta suposta falta de competição entre machos adultos e jovens, alguns jovens inexperientes de rendeiras (Manacus manacus) que tentam praticar exibições podem ser perseguidos por adultos agressivos. No presente estudo, eu descrevo o comportamento de montar, car-acterístico da cópula entre machos e fêmeas, entre machos adultos e machos jovens da rendeira. Dois machos jovens praticaram manobras de exibição em duas arenas de machos adultos logo depois que foram montados pelos mesmos adultos. Os adultos não perseguiram estes machos jovens, evidenciando nenhuma competição ou agressividade. Qua-tro anos depois, os mesmos jovens (individualmente marcados) se estabeleceram nas mesmas áreas de lek onde o comportamento de montar foi registrado. Para os jovens, o comportamento de montar pode facilitar a aproximação em arenas de adultos e a aquisição de experiência em exibições. Para os adultos, os benefícios derivados do compor-tamento de montar podem incluir imposição de hierarquia social sobre outros machos jovens e eliminação de futuros conflitos com potenciais machos jovens que queiram se estabelecer nas áreas de lek. Apesar dos resultados, um pos-sível erro de identificação de sexo entre machos jovens e fêmeas por machos adultos não é descartado.\n

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\n \n\n \n \n \n \n \n \n Cestari RCG 2017.\n \n \n \n \n\n\n \n \n\n\n \n\n\n\n . .\n \n\n\n\n
\n\n\n\n \n \n $\"Cestari$ Paper\n \n \n\n \n\n \n link\n \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n \n \n \n\n\n\n

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