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Post-nesting migrations of loggerhead turtles Caretta caretta from Georgia, USA: conservation implications for a genetically distinct subpopulation

Published online by Cambridge University Press:  22 November 2002

Pamela T. Plotkin
Affiliation:
East Tennessee State University, Office of Research and Sponsored Programs, Johnson City, TN 37614, USA
James R. Spotila
Affiliation:
Drexel University, School of Environmental Science, Engineering and Policy, Nesbitt Hall, Philadelphia, PA 19104, USA
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Abstract

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The loggerhead sea turtle Caretta caretta is listed as threatened with extinction on the US Endangered Species Act. Those loggerhead turtles that nest on US beaches from North Carolina to north-east Florida are a genetically distinct subpopulation. This subpopulation is small, and may be declining. To obtain information about the migratory pathways of these turtles we tracked post-nesting movements of five females by satellite from their nesting beach at Wassaw Island, Georgia. Four turtles migrated north of the nesting beach, of which three moved to coastal waters of mid Atlantic states (total distances of 157–1,458 km). Efforts to reduce mortality of northern subpopulations of loggerhead turtles need to focus on identifying and reducing threats in north-east US waters.

Type
Short Communication
Copyright
2002 Fauna & Flora International