Factors Influencing Nesting and Road Crossing Behavior in Diamondback Terrapin (Malaclemys terrapin). Candal, C. Ph.D. Thesis, University of Georgia, Athens, Georgia, USA, 2016. abstract bibtex Roads are a pervasive feature of human built landscapes that can fragment wildlife habitat and increase the risk of wildlife-vehicle collisions. We used seven years (2009-2015) of markrecapture data from intensive road surveys during the nesting season to determine environmental and intrinsic factors influencing nest site fidelity and road-crossing behavior in diamondback terrapins (Malaclemys terrapin) along the 8.7-km Downing-Musgrove Causeway in Jekyll Island, Georgia. We used linear and logistic regressions to analyze the effects of roadside hedge and individual head width (used as a proxy for age) on longitudinal nest site fidelity and roadcrossing behavior. Our results confirmed intercapture distances of 50–100 m, and we found evidence of fidelity to crossing behaviors between captures. We found habitat was similar between nest sites at the 50-m scale (P \textless 0.001), and dense roadside hedge increased roadcrossing behavior at 25- and 50-m scales (P \textless 0.001). We also found that head width was negatively correlated with intercapture distances (P = .0018) and road crossing (P = 0.056). Our results show dense vegetation results in less precise nest site fidelity and increased crossing behavior. They also show older females exhibit more precise nest site fidelity and are less likely to cross roads. The management implications of our study support the need for vegetation removal along both roadsides of the JIC in areas of high terrapin density as a way to create ideal nesting habitat and reduce road crossing. We also suggest that road crossing is partly a result of less experienced females nesting over wider sections of the causeway, which supports the need to keep young females off of roads through the use of barriers and vegetation management. Overall, this study demonstrates the importance of incorporating studies of animal behavior in creating management strategies.
@phdthesis{candal_factors_2016,
address = {Athens, Georgia, USA},
type = {Senior {Thesis}},
title = {Factors {Influencing} {Nesting} and {Road} {Crossing} {Behavior} in {Diamondback} {Terrapin} ({Malaclemys} terrapin)},
abstract = {Roads are a pervasive feature of human built landscapes that can fragment wildlife habitat and increase the risk of wildlife-vehicle collisions. We used seven years (2009-2015) of markrecapture data from intensive road surveys during the nesting season to determine environmental and intrinsic factors influencing nest site fidelity and road-crossing behavior in diamondback terrapins (Malaclemys terrapin) along the 8.7-km Downing-Musgrove Causeway in Jekyll Island, Georgia. We used linear and logistic regressions to analyze the effects of roadside hedge and individual head width (used as a proxy for age) on longitudinal nest site fidelity and roadcrossing behavior. Our results confirmed intercapture distances of 50–100 m, and we found evidence of fidelity to crossing behaviors between captures. We found habitat was similar between nest sites at the 50-m scale (P {\textless} 0.001), and dense roadside hedge increased roadcrossing behavior at 25- and 50-m scales (P {\textless} 0.001). We also found that head width was negatively correlated with intercapture distances (P = .0018) and road crossing (P = 0.056). Our results show dense vegetation results in less precise nest site fidelity and increased crossing behavior. They also show older females exhibit more precise nest site fidelity and are less likely to cross roads. The management implications of our study support the need for vegetation removal along both roadsides of the JIC in areas of high terrapin density as a way to create ideal nesting habitat and reduce road crossing. We also suggest that road crossing is partly a result of less experienced females nesting over wider sections of the causeway, which supports the need to keep young females off of roads through the use of barriers and vegetation management. Overall, this study demonstrates the importance of incorporating studies of animal behavior in creating management strategies.},
school = {University of Georgia},
author = {Candal, Carmen},
year = {2016},
}
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We used linear and logistic regressions to analyze the effects of roadside hedge and individual head width (used as a proxy for age) on longitudinal nest site fidelity and roadcrossing behavior. Our results confirmed intercapture distances of 50–100 m, and we found evidence of fidelity to crossing behaviors between captures. We found habitat was similar between nest sites at the 50-m scale (P \\textless 0.001), and dense roadside hedge increased roadcrossing behavior at 25- and 50-m scales (P \\textless 0.001). We also found that head width was negatively correlated with intercapture distances (P = .0018) and road crossing (P = 0.056). Our results show dense vegetation results in less precise nest site fidelity and increased crossing behavior. They also show older females exhibit more precise nest site fidelity and are less likely to cross roads. The management implications of our study support the need for vegetation removal along both roadsides of the JIC in areas of high terrapin density as a way to create ideal nesting habitat and reduce road crossing. We also suggest that road crossing is partly a result of less experienced females nesting over wider sections of the causeway, which supports the need to keep young females off of roads through the use of barriers and vegetation management. Overall, this study demonstrates the importance of incorporating studies of animal behavior in creating management strategies.","school":"University of Georgia","author":[{"propositions":[],"lastnames":["Candal"],"firstnames":["Carmen"],"suffixes":[]}],"year":"2016","bibtex":"@phdthesis{candal_factors_2016,\n\taddress = {Athens, Georgia, USA},\n\ttype = {Senior {Thesis}},\n\ttitle = {Factors {Influencing} {Nesting} and {Road} {Crossing} {Behavior} in {Diamondback} {Terrapin} ({Malaclemys} terrapin)},\n\tabstract = {Roads are a pervasive feature of human built landscapes that can fragment wildlife habitat and increase the risk of wildlife-vehicle collisions. We used seven years (2009-2015) of markrecapture data from intensive road surveys during the nesting season to determine environmental and intrinsic factors influencing nest site fidelity and road-crossing behavior in diamondback terrapins (Malaclemys terrapin) along the 8.7-km Downing-Musgrove Causeway in Jekyll Island, Georgia. We used linear and logistic regressions to analyze the effects of roadside hedge and individual head width (used as a proxy for age) on longitudinal nest site fidelity and roadcrossing behavior. Our results confirmed intercapture distances of 50–100 m, and we found evidence of fidelity to crossing behaviors between captures. We found habitat was similar between nest sites at the 50-m scale (P {\\textless} 0.001), and dense roadside hedge increased roadcrossing behavior at 25- and 50-m scales (P {\\textless} 0.001). We also found that head width was negatively correlated with intercapture distances (P = .0018) and road crossing (P = 0.056). Our results show dense vegetation results in less precise nest site fidelity and increased crossing behavior. They also show older females exhibit more precise nest site fidelity and are less likely to cross roads. The management implications of our study support the need for vegetation removal along both roadsides of the JIC in areas of high terrapin density as a way to create ideal nesting habitat and reduce road crossing. We also suggest that road crossing is partly a result of less experienced females nesting over wider sections of the causeway, which supports the need to keep young females off of roads through the use of barriers and vegetation management. Overall, this study demonstrates the importance of incorporating studies of animal behavior in creating management strategies.},\n\tschool = {University of Georgia},\n\tauthor = {Candal, Carmen},\n\tyear = {2016},\n}\n\n\n\n","author_short":["Candal, C."],"key":"candal_factors_2016","id":"candal_factors_2016","bibbaseid":"candal-factorsinfluencingnestingandroadcrossingbehaviorindiamondbackterrapinmalaclemysterrapin-2016","role":"author","urls":{},"metadata":{"authorlinks":{}},"html":""},"bibtype":"phdthesis","biburl":"https://bibbase.org/zotero-group/jcmaerz/6026148","dataSources":["mCHFziEwJLRwofY4u","cEHounRE4nrKSn63i"],"keywords":[],"search_terms":["factors","influencing","nesting","road","crossing","behavior","diamondback","terrapin","malaclemys","terrapin","candal"],"title":"Factors Influencing Nesting and Road Crossing Behavior in Diamondback Terrapin (Malaclemys terrapin)","year":2016}