Non-Migrant: No. All populations of this species make significant seasonal migrations.
Locally Migrant: Yes. At least some populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).
Locally Migrant: Yes. At least some populations of this species make annual migrations of over 200 km.
Adults may migrate hundreds or thousands of kilometers between nesting beaches and marine feeding areas (Plotkin 2003). In the Caribbean region, 19 adults traveled minimum distances of 110-1,936 kilometers, 9 immatures 46-900 kilometers; recapture of immatures suggest long-term residency in developmental habitats (Meylan 1999). Adult females that nested in Barbados traveled 200-435 kilometers (straight-line distance) over 7-18 days to foraging areas in Dominica, Grenada, Trinidad, and Venezuela (Horrocks et al. 2001). A female tagged on a nesting beach at Buck Island Reef National Monument near St. Croix, U.S. Virgin Islands, was recovered at Miskito Cays, Nicaragua (Hillis, 1995, Park Science 15(2):25). A feeding population at Isla Mona (Puerto Rico) included individuals from nesting populations throughout the Caribbean region (Bowen et al. 1996).
MtDNA data from the Caribbean region indicate that a natal homing mechanism predominates and that nesting populations should be considered separate stocks; foraging populations evidently are composed of cohorts from multiple regional nesting colonies (Bass 1999).
Foraging home range sizes of individuals in the West Indies were 1.96-49.5 square kilometers and were positively correlated with average water depth (Horrocks et al. 2001).
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