@article{oswald_wetlands_2020, title = {Wetlands, {Evolution}, and {Conservation} of the {Pine} {Barrens} {Treefrog} ({Hyla} andersonii)}, volume = {54}, copyright = {All rights reserved}, issn = {0022-1511}, url = {https://bioone.org/journals/journal-of-herpetology/volume-54/issue-2/19-075/Wetlands-Evolution-and-Conservation-of-the-Pine-Barrens-Treefrog-Hyla/10.1670/19-075.full}, doi = {10.1670/19-075}, abstract = {Loss of wetlands throughout the southeastern United States threatens the persistence of the region’s highly diverse freshwater fauna. Losses are especially concerning for rare species that maintain small or fragmented ranges, zoogeographies that characterize many of the region’s numerous freshwater endemics. We assayed nuclear and mitochondrial DNA sequence data from the Pine Barrens Treefrog (Hyla andersonii), a rare species distributed across the Atlantic and Gulf coastal plains. We hypothesized that the species’ evolutionary history has been associated with changes in wetlands during Quaternary interglacials and that the contemporaneous extent of wetlands is positively correlated with population genetic diversity. Genetic variation was highest in North Carolina and South Carolina and lowest in New Jersey and Florida. Mean times to common ancestry ranged from 132,486 to 1,290,605 yr before present, and effective sizes ranged from 4,241 individuals in New Jersey to 403,718 individuals in North Carolina. Population migration rates were generally very low ({\textless}0.01), although higher rates were found between North Carolina and South Carolina. Total area of wetlands varied from 2,482 km2 in South Carolina to 7,384 km2 in North Carolina and has declined between 2001 and 2016. Genetic diversity was positively, although nonsignificantly, correlated to total amount of wetland habitat. Pine Barrens Treefrog is comprised of four relictual populations associated with ecological changes driven by climatic progressions of Quaternary interglacials, and collectively these populations conform to an abundant center model of evolution. All populations are conservatively designated management units, although evolutionarily significant unit status cannot be discounted.}, language = {en}, number = {2}, urldate = {2024-01-21}, journal = {Journal of Herpetology}, author = {Oswald, Kenneth J. and Roberts, Mark A. and Moler, Paul E. and Arndt, Rudolf G. and Camper, Jeffrey D. and Quattro, Joseph M.}, month = may, year = {2020}, pages = {206}, } 

Loss of wetlands throughout the southeastern United States threatens the persistence of the region’s highly diverse freshwater fauna. Losses are especially concerning for rare species that maintain small or fragmented ranges, zoogeographies that characterize many of the region’s numerous freshwater endemics. We assayed nuclear and mitochondrial DNA sequence data from the Pine Barrens Treefrog (Hyla andersonii), a rare species distributed across the Atlantic and Gulf coastal plains. We hypothesized that the species’ evolutionary history has been associated with changes in wetlands during Quaternary interglacials and that the contemporaneous extent of wetlands is positively correlated with population genetic diversity. Genetic variation was highest in North Carolina and South Carolina and lowest in New Jersey and Florida. Mean times to common ancestry ranged from 132,486 to 1,290,605 yr before present, and effective sizes ranged from 4,241 individuals in New Jersey to 403,718 individuals in North Carolina. Population migration rates were generally very low (\textless0.01), although higher rates were found between North Carolina and South Carolina. Total area of wetlands varied from 2,482 km2 in South Carolina to 7,384 km2 in North Carolina and has declined between 2001 and 2016. Genetic diversity was positively, although nonsignificantly, correlated to total amount of wetland habitat. Pine Barrens Treefrog is comprised of four relictual populations associated with ecological changes driven by climatic progressions of Quaternary interglacials, and collectively these populations conform to an abundant center model of evolution. All populations are conservatively designated management units, although evolutionarily significant unit status cannot be discounted.

@article{oswald_drainage_2020, title = {Drainage {History}, {Evolution}, and {Conservation} of {Tonguetied} {Minnow} ({Exoglossum} laurae), a {Rare} and {Imperiled} {Teays} {River} {Endemic}}, volume = {108}, copyright = {All rights reserved}, issn = {0045-8511, 1938-5110}, url = {https://bioone.org/journals/copeia/volume-108/issue-2/CI-18-118/Drainage-History-Evolution-and-Conservation-of-Tonguetied-Minnow-Exoglossum-laurae/10.1643/CI-18-118.full}, doi = {10.1643/CI-18-118}, abstract = {Legacies of ancient riverine systems are often manifest in patterns of genetic diversity within aquatic species. The ancient Teays River, a principal drainage of the eastern United States, engaged in several ephemeral connections with neighboring palaeodrainages prior to and during the Pleistocene, when cyclical glacial advance and retreat reconfigured the region's fluvial systems. This study assayed DNA-sequence diversity at one mitochondrial (mtDNA) and three single-copy nuclear DNA (scnDNA) loci from the Tonguetied Minnow (Exoglossum laurae), a species distributed as four disjunct populations, one each within the Upper Great Miami, Upper Allegheny, Upper Genesee, and New rivers. Mitochondrial DNA variation revealed that the New River harbors the highest diversity (h = 0.73) and that the Tonguetied Minnow is composed of two ancient lineages, a Teays River lineage and a Pittsburgh River lineage. Analyses of the scnDNA loci revealed sharing of alleles among populations of E. laurae and between the Tonguetied Minnow and its only congener, the Cutlip Minnow (E. maxillingua), sampled from the Roanoke and Potomac rivers. The probability of interspecific hybridization in the New and Upper Genesee rivers was estimated as 0.16 and 0.34, respectively, but it is likely that some degree of incomplete lineage sorting contributed to these estimates. Probabilities of interspecific hybridization for Cutlip Minnow were 0.62 and 0.65, for the Roanoke and Potomac rivers, respectively, and might reflect ancient hybridization resulting from stream capture events involving these drainages by the Teays River. Management strategies should focus on maintaining the security of the Pittsburgh River lineage in the Upper Great Miami and Upper Allegheny River drainages. Finally, insights into the Tonguetied Minnow's rather convoluted taxonomic history are few, but genetic variation is inconsistent with subspecies status for Tonguetied Minnow in the Upper Great Miami River drainage.}, number = {2}, urldate = {2024-01-22}, journal = {Copeia}, author = {Oswald, Kenneth J. and Spinks, Emily and Duktig, Garrett S. and Baker, Justin S. and Kibbey, Marc R. and Zimmerman, Brian and Tucker, Holly and Boucher, Charles E. and Cincotta, Daniel A. and Starnes, Wayne C. and Kiss, Andor J. and Wright, Jeremy J. and Carlson, Douglas M. and Bangs, Max R. and Roberts, Mark A. and Quattro, Joseph M.}, month = may, year = {2020}, note = {3 citations (Crossref) [2024-01-22] Publisher: The American Society of Ichthyologists and Herpetologists}, pages = {381--391}, }

Legacies of ancient riverine systems are often manifest in patterns of genetic diversity within aquatic species. The ancient Teays River, a principal drainage of the eastern United States, engaged in several ephemeral connections with neighboring palaeodrainages prior to and during the Pleistocene, when cyclical glacial advance and retreat reconfigured the region's fluvial systems. This study assayed DNA-sequence diversity at one mitochondrial (mtDNA) and three single-copy nuclear DNA (scnDNA) loci from the Tonguetied Minnow (Exoglossum laurae), a species distributed as four disjunct populations, one each within the Upper Great Miami, Upper Allegheny, Upper Genesee, and New rivers. Mitochondrial DNA variation revealed that the New River harbors the highest diversity (h = 0.73) and that the Tonguetied Minnow is composed of two ancient lineages, a Teays River lineage and a Pittsburgh River lineage. Analyses of the scnDNA loci revealed sharing of alleles among populations of E. laurae and between the Tonguetied Minnow and its only congener, the Cutlip Minnow (E. maxillingua), sampled from the Roanoke and Potomac rivers. The probability of interspecific hybridization in the New and Upper Genesee rivers was estimated as 0.16 and 0.34, respectively, but it is likely that some degree of incomplete lineage sorting contributed to these estimates. Probabilities of interspecific hybridization for Cutlip Minnow were 0.62 and 0.65, for the Roanoke and Potomac rivers, respectively, and might reflect ancient hybridization resulting from stream capture events involving these drainages by the Teays River. Management strategies should focus on maintaining the security of the Pittsburgh River lineage in the Upper Great Miami and Upper Allegheny River drainages. Finally, insights into the Tonguetied Minnow's rather convoluted taxonomic history are few, but genetic variation is inconsistent with subspecies status for Tonguetied Minnow in the Upper Great Miami River drainage.

@article{jones_morphological_2017, title = {Morphological conservation of rays in the genus {Rhinoptera} ({Elasmobranchii}, {Rhinopteridae}) conceals the occurrence of a large batoid, {Rhinoptera} brasiliensis {Müller}, in the northern {Gulf} of {Mexico}}, volume = {4286}, copyright = {All rights reserved}, issn = {1175-5334, 1175-5326}, url = {https://www.mapress.com/zt/article/view/zootaxa.4286.4.3}, doi = {10.11646/zootaxa.4286.4.3}, abstract = {In 2007, three rays identified as Rhinoptera brasiliensis based on tooth series counts were captured in the northern Gulf of Mexico, a region far outside their accepted range of the coastal waters of southern Brazil. Genetic analyses confirmed that these individuals were distinct from R. bonasus, the only recognized indigenous rhinopterid in the Gulf of Mexico. Further analyses of over 250 specimens confirmed the widespread occurrence of two species in the northern Gulf of Mexico and revealed that the anomalous individuals related most closely to vouchered specimens of R. brasiliensis from Brazil. Discriminant function analyses of morphological data identified several potential discriminating characters, but the degree of overlap of the measurements and counts between the two species rendered most impractical for identification purposes. However, the shape of the supracranial fontanelle appeared to be consistently reliable in differentiating between the two species. Tooth series counts (R. bonasus = 5 to 15, R. brasiliensis = usually 7 to 13) were significantly different between the two species but exhibited considerable overlap. This is the first study to verify the occurrence of R. brasiliensis in the northern Gulf of Mexico; however, the close genetic relationships to other rhinopterid species, as well as the morphological similarity of the group as a whole, require additional research.}, language = {en}, number = {4}, urldate = {2024-01-21}, journal = {Zootaxa}, author = {Jones, Christian M. and Hoffmayer, Eric R. and Hendon, Jill M. and Quattro, Joseph M. and Lewandowski, Justin and Roberts, Mark A. and Poulakis, Gregg R. and Ajemian, Matthew J. and Driggers, William B. Iii and Carvalho, Marcelo R. De and Rêgo, Mariana G. and Hazin, Fábio H. V. and Márquez-Farías, J. Fernando}, month = jul, year = {2017}, } 

In 2007, three rays identified as Rhinoptera brasiliensis based on tooth series counts were captured in the northern Gulf of Mexico, a region far outside their accepted range of the coastal waters of southern Brazil. Genetic analyses confirmed that these individuals were distinct from R. bonasus, the only recognized indigenous rhinopterid in the Gulf of Mexico. Further analyses of over 250 specimens confirmed the widespread occurrence of two species in the northern Gulf of Mexico and revealed that the anomalous individuals related most closely to vouchered specimens of R. brasiliensis from Brazil. Discriminant function analyses of morphological data identified several potential discriminating characters, but the degree of overlap of the measurements and counts between the two species rendered most impractical for identification purposes. However, the shape of the supracranial fontanelle appeared to be consistently reliable in differentiating between the two species. Tooth series counts (R. bonasus = 5 to 15, R. brasiliensis = usually 7 to 13) were significantly different between the two species but exhibited considerable overlap. This is the first study to verify the occurrence of R. brasiliensis in the northern Gulf of Mexico; however, the close genetic relationships to other rhinopterid species, as well as the morphological similarity of the group as a whole, require additional research.

@article{butler_atlantic_2014, title = {Atlantic bluefin tuna{\textbackslash}lessi{\textbackslash}{greaterThunnus} thynnus{\textbackslash}less/i{\textbackslash}greaterfeeding ecology in the northern {Gulf} of {Mexico}: a preliminary description of diet from the western {Atlantic} spawning grounds}, volume = {86}, copyright = {All rights reserved}, url = {https://doi.org/10.1111%2Fjfb.12556}, doi = {10.1111/jfb.12556}, number = {1}, journal = {Journal of Fish Biology}, author = {Butler, C. M. and Logan, J. M. and Provaznik, J. M. and Hoffmayer, E. R. and Staudinger, M. D. and Quattro, J. M. and Roberts, M. A. and Ingram, G. W. and Pollack, A. G. and Lutcavage, M. E.}, month = nov, year = {2014}, note = {13 citations (Crossref) [2024-01-22] Publisher: Wiley}, pages = {365--374}, } 

@article{quattro_sphyrna_2013, title = {Sphyrna gilberti sp. nov., a new hammerhead shark ({Carcharhiniformes}, {Sphyrnidae}) from the western {Atlantic} {Ocean}}, volume = {3702}, copyright = {All rights reserved}, issn = {1175-5334, 1175-5326}, url = {http://biotaxa.org/Zootaxa/article/view/zootaxa.3702.2.5}, doi = {10.11646/zootaxa.3702.2.5}, abstract = {Sphyrna gilberti sp. nov. is described based on 54 specimens collected in the coastal waters of South Carolina, U.S.A. Morphologically, S. gilberti sp. nov. is separable from S. lewini (Griffith \& Smith 1834) only in the number of precaudal vertebrae. Due to rarity of specimens and the highly migratory behavior of most sphyrnids, the range of S. gilberti sp. nov. is unknown.}, language = {en}, number = {2}, urldate = {2024-01-21}, journal = {Zootaxa}, author = {Quattro, Joseph M. and Driggers, William B. Iii and Grady, James M. and Ulrich, Glenn F. and Roberts, Mark A.}, month = aug, year = {2013}, pages = {159}, } 

Sphyrna gilberti sp. nov. is described based on 54 specimens collected in the coastal waters of South Carolina, U.S.A. Morphologically, S. gilberti sp. nov. is separable from S. lewini (Griffith & Smith 1834) only in the number of precaudal vertebrae. Due to rarity of specimens and the highly migratory behavior of most sphyrnids, the range of S. gilberti sp. nov. is unknown.

@article{brannock_ubiquitous_2013, title = {Ubiquitous heteroplasmy in {Mytilus} spp. resulting from disruption in doubly uniparental inheritance regulation}, volume = {480}, copyright = {All rights reserved}, url = {https://doi.org/10.3354%2Fmeps10228}, doi = {10.3354/meps10228}, journal = {Marine Ecology Progress Series}, author = {Brannock, P. M. and Roberts, M. A. and Hilbish, T. J.}, month = apr, year = {2013}, note = {16 citations (Crossref) [2024-01-22] Publisher: Inter-Research Science Center}, pages = {131--143}, } 

@article{arendt_spatial_2012, title = {Spatial clustering of loggerhead sea turtles in coastal waters of the {NW} {Atlantic} {Ocean}: implications for management surveys}, volume = {18}, copyright = {All rights reserved}, url = {http://dx.doi.org/10.3354/esr00450}, doi = {10.3354/esr00450}, number = {3}, journal = {Endangered Species Research}, author = {Arendt, M. D. and Boynton, J. and Schwenter, J. A. and Byrd, J. I. and Segars, A. L. and Whitaker, J. D. and Parker, L. and Owens, D. W. and Blanvillain, G. M. and Quattro, J. M. and Roberts, M. A.}, month = sep, year = {2012}, note = {12 citations (Crossref) [2024-01-22] Publisher: Inter-Research Science Center}, pages = {219--231}, } 

@article{muhling_collection_2011, title = {Collection of {Larval} {Bluefin} {Tuna} ( \textit{{Thunnus} {Thynnus}} ) {Outside} {Documented} {Western} {Atlantic} {Spawning} {Grounds}}, volume = {87}, copyright = {All rights reserved}, issn = {0007-4977}, url = {http://www.ingentaconnect.com/content/10.5343/bms.2010.1101}, doi = {10.5343/bms.2010.1101}, abstract = {Atlantic bluefin tuna, Thunnus thynnus (Linnaeus, 1758), are highly migratory and capable of traversing large distances throughout the North Atlantic Ocean. However, the majority of spawning activity has only been reported from the Mediterranean Sea and Gulf of Mexico. In early April 2009, low numbers of very small larval bluefin tuna were collected within and south of the Yucatán Channel, and along the western boundary of the Loop Current, northeast of Campeche Bank. In situ current velocity measurements showed that these larvae were collected in moderate to strong northward flow regimes, suggesting that they were spawned outside of the Gulf of Mexico. Here we describe the location and oceanographic environment of these larval bluefin tuna collections, and compare the 2009 data with some historical collections in the area.}, language = {en}, number = {3}, urldate = {2024-01-21}, journal = {Bulletin of Marine Science}, author = {Muhling, Barbara A and Lamkin, John T and Quattro, Joseph M and Smith, Ryan H and Roberts, Mark A and Roffer, Mitchell A and Ramírez, Karina}, month = jul, year = {2011}, pages = {687--694}, } 

Atlantic bluefin tuna, Thunnus thynnus (Linnaeus, 1758), are highly migratory and capable of traversing large distances throughout the North Atlantic Ocean. However, the majority of spawning activity has only been reported from the Mediterranean Sea and Gulf of Mexico. In early April 2009, low numbers of very small larval bluefin tuna were collected within and south of the Yucatán Channel, and along the western boundary of the Loop Current, northeast of Campeche Bank. In situ current velocity measurements showed that these larvae were collected in moderate to strong northward flow regimes, suggesting that they were spawned outside of the Gulf of Mexico. Here we describe the location and oceanographic environment of these larval bluefin tuna collections, and compare the 2009 data with some historical collections in the area.

@article{arendt_distributional_2011, title = {Distributional patterns of adult male loggerhead sea turtles ({Caretta} caretta) in the vicinity of {Cape} {Canaveral}, {Florida}, {USA} during and after a major annual breeding aggregation}, volume = {159}, copyright = {All rights reserved}, url = {http://dx.doi.org/10.1007/s00227-011-1793-5}, doi = {10.1007/s00227-011-1793-5}, number = {1}, journal = {Marine Biology}, author = {Arendt, Michael D. and Segars, Albert L. and Byrd, Julia I. and Boynton, Jessica and Whitaker, J. David and Parker, Lindsey and Owens, David W. and Blanvillain, Gaëlle and Quattro, Joseph M. and Roberts, Mark A.}, month = nov, year = {2011}, note = {37 citations (Crossref) [2024-01-22] Publisher: Springer Science {\textbackslash}mathplus Business Media}, pages = {101--112}, } 

@article{arendt_seasonal_2011, title = {Seasonal distribution patterns of juvenile loggerhead sea turtles ({Caretta} caretta) following capture from a shipping channel in the {Northwest} {Atlantic} {Ocean}}, volume = {159}, copyright = {All rights reserved}, url = {http://dx.doi.org/10.1007/s00227-011-1829-x}, doi = {10.1007/s00227-011-1829-x}, number = {1}, journal = {Marine Biology}, author = {Arendt, Michael D. and Segars, Albert L. and Byrd, Julia I. and Boynton, Jessica and Whitaker, J. David and Parker, Lindsey and Owens, David W. and Blanvillain, Gaëlle and Quattro, Joseph M. and Roberts, Mark A.}, month = nov, year = {2011}, note = {21 citations (Crossref) [2024-01-22] Publisher: Springer Science {\textbackslash}mathplus Business Media}, pages = {127--139}, } 

@article{roberts_estimated_2005, title = {Estimated contribution of {Atlantic} {Coastal} loggerhead turtle nesting populations to offshore feeding aggregations}, volume = {6}, copyright = {All rights reserved}, url = {http://dx.doi.org/10.1007/s10592-004-7737-6}, doi = {10.1007/s10592-004-7737-6}, number = {1}, journal = {Conservation Genetics}, author = {Roberts, Mark A. and Anderson, Christopher J. and Stender, Bruce and Segars, Al and Whittaker, J. David and Grady, James M. and Quattro, Joseph M.}, month = jan, year = {2005}, note = {13 citations (Crossref) [2024-01-22] Publisher: Springer Science {\textbackslash}mathplus Business Media}, pages = {133--139}, } 

@article{roberts_global_2004, title = {Global {Population} {Genetic} {Structure} and {Male}-{Mediated} {Gene} {Flow} in the {Green} {Sea} {Turtle} ({Chelonia} mydas): {Analysis} of {Microsatellite} {Loci}}, volume = {166}, copyright = {All rights reserved}, shorttitle = {Global {Population} {Genetic} {Structure} and {Male}-{Mediated} {Gene} {Flow} in the {Green} {Sea} {Turtle} ({Chelonia} mydas)}, url = {https://doi.org/10.1534/genetics.166.4.1857}, doi = {10.1534/genetics.166.4.1857}, abstract = {We assessed the degree of population subdivision among global populations of green sea turtles, Chelonia mydas, using four microsatellite loci. Previously, a single-copy nuclear DNA study indicated significant malemediated gene flow among populations alternately fixed for different mitochondrial DNA haplotypes and that genetic divergence between populations in the Atlantic and Pacific Oceans was more common than subdivisions among populations within ocean basins. Even so, overall levels of variation at single-copy loci were low and inferences were limited. Here, the markedly more variable microsatellite loci confirm the presence of male-mediated gene flow among populations within ocean basins. This analysis generally confirms the genetic divergence between the Atlantic and Pacific. As with the previous study, phylogenetic analyses of genetic distances based on the microsatellite loci indicate a close genetic relationship among eastern Atlantic and Indian Ocean populations. Unlike the single-copy study, however, the results here cannot be attributed to an artifact of general low variability and likely represent recent or ongoing migration between ocean basins. Sequence analyses of regions flanking the microsatellite repeat reveal considerable amounts of cryptic variation and homoplasy and significantly aid in our understanding of population connectivity. Assessment of the allele frequency distributions indicates that at least some of the loci may not be evolving by the stepwise mutation model.}, language = {en}, number = {4}, urldate = {2024-01-22}, journal = {Genetics}, author = {Roberts, Mark A. and Schwartz, Tonia S. and Karl, Stephen A.}, year = {2004}, note = {71 citations (Crossref) [2024-01-22]}, } 

We assessed the degree of population subdivision among global populations of green sea turtles, Chelonia mydas, using four microsatellite loci. Previously, a single-copy nuclear DNA study indicated significant malemediated gene flow among populations alternately fixed for different mitochondrial DNA haplotypes and that genetic divergence between populations in the Atlantic and Pacific Oceans was more common than subdivisions among populations within ocean basins. Even so, overall levels of variation at single-copy loci were low and inferences were limited. Here, the markedly more variable microsatellite loci confirm the presence of male-mediated gene flow among populations within ocean basins. This analysis generally confirms the genetic divergence between the Atlantic and Pacific. As with the previous study, phylogenetic analyses of genetic distances based on the microsatellite loci indicate a close genetic relationship among eastern Atlantic and Indian Ocean populations. Unlike the single-copy study, however, the results here cannot be attributed to an artifact of general low variability and likely represent recent or ongoing migration between ocean basins. Sequence analyses of regions flanking the microsatellite repeat reveal considerable amounts of cryptic variation and homoplasy and significantly aid in our understanding of population connectivity. Assessment of the allele frequency distributions indicates that at least some of the loci may not be evolving by the stepwise mutation model.