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Ontogenetic development of migration : Lagrangian drift trajectories suggest a new paradigm for sea turtles
journal contribution
posted on 2010-09-01, 00:00 authored by Graeme HaysGraeme Hays, S Fossette, K Katselidis, P Mariani, Gail SchofieldLong distance migration occurs in a wide variety of taxa including birds, insects, fishes, mammals and reptiles. Here, we provide evidence for a new paradigm for the determinants of migration destination. As adults, sea turtles show fidelity to their natal nesting areas and then at the end of the breeding season may migrate to distant foraging sites. For a major rookery in the Mediterranean, we simulated hatchling drift by releasing 288 000 numerical particles in an area close to the nesting beaches. We show that the pattern of adult dispersion from the breeding area reflects the extent of passive dispersion that would be experienced by hatchlings. Hence, the prevailing oceanography around nesting areas may be crucial to the selection of foraging sites used by adult sea turtles. This environmental forcing may allow the rapid evolution of new migration destinations if ocean currents alter with climate change.
History
Journal
Journal of the Royal Society InterfaceVolume
7Issue
50Pagination
1319 - 1327Publisher
Royal SocietyLocation
London, EnglandPublisher DOI
ISSN
1742-5689eISSN
1742-5662Language
engPublication classification
C1.1 Refereed article in a scholarly journalCopyright notice
2010, Royal Society PublishingUsage metrics
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