Migratory corridor linking Atlantic green turtle, Chelonia mydas, nesting site on Bioko Island, Equatorial Guinea to Ghanaian foraging grounds
| Autor: | Chelsea E. Clyde-Brockway, Shaya Honarvar, Emily K. Mettler, Frank V. Paladino |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Topography Beaches Endangered species Social Sciences Marine and Aquatic Sciences 01 natural sciences Ghana law.invention Nesting Behavior law Oceans Psychology Telemetry Foraging Turtle (robot) Islands Appetitive Behavior Multidisciplinary Animal Behavior Behavior Animal Satellite telemetry Eukaryota Turtles Geography Vertebrates Equatorial Guinea Medicine Research Article Animal Navigation Science 010603 evolutionary biology Animals Behavior Landforms 010604 marine biology & hydrobiology Endangered Species Organisms Biology and Life Sciences Reptiles Geomorphology Bodies of Water Fishery Testudines Amniotes Earth Sciences Animal Migration Zoology |
| Zdroj: | PLoS ONE PLoS ONE, Vol 14, Iss 6, p e0213231 (2019) |
| ISSN: | 1932-6203 |
| Popis: | This study uses satellite telemetry to track post-nesting movements of endangered green turtles (Chelonia mydas) (n = 6) in the Gulf of Guinea. It identifies a migratory corridor linking breeding grounds of Atlantic green turtles nesting on Bioko Island, Equatorial Guinea, to foraging grounds in the coastal waters of Accra, Ghana. Track lengths of 20-198 days were analyzed, for a total of 536 movement days for the six turtles. Migratory pathways and foraging grounds were identified by applying a switching state space model to locational data, which provides daily position estimates to identify shifts between migrating and foraging behavior. Turtles exhibited a combination of coastal and oceanic migrations pathways that ranged from 957 km to 1,131 km. Of the six turtles, five completed their migration and maintained residency at the same foraging ground near the coastal waters of Accra, Ghana until transmission was lost. These five resident turtles inhabit heavily fished waters and are vulnerable to a variety of anthropogenic threats. The identification of these foraging grounds highlights the importance of these coastal waters for the protection of the endangered Atlantic green turtle. |
| Databáze: | OpenAIRE |
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