Migratory patterns in hawksbill turtles described by satellite tracking

作者：Hawkes L A^*; Tomas J; Revuelta O; Leon Y M; Blumenthal J M; Broderick A C; Fish M; Raga J A; Witt M J; Godley B J

来源：Marine Ecology Progress Series, 2012, 461: 223-232.

DOI：10.3354/meps09778

• Satellite tracking
• Hawksbill turtle
• Caribbean
• Conservation planning
• Fidelity

The advent of telemetry has improved knowledge of the spatio-temporal distribution of marine species of conservation concern. Among the sea turtles, the movements of the hawksbill turtle Eretmochelys imbricata are among the least well described. We tracked 10 adult female hawksbill turtles by satellite after nesting in the Dominican Republic (DR) and describe a dichotomy in patterns of movement: some (n = 2) turtles remained in the DR, while others migrated to waters off Honduras and Nicaragua (n = 5) and the Bahamas (n = 1). Transmitters on 2 turtles failed during migration, before they reached their final foraging grounds. We present results from long tracking durations for 3 turtles, including 3 entire remigration intervals, highlighting foraging ground and nest-site fidelity. Threats to hawksbill turtles are not well documented for Nicaragua or neighbouring Honduras and represent a major information gap. We suggest that directing conservation efforts to regionally important foraging areas, such as those in Nicaragua, and strengthening national conservation in each nation with significant hawksbill nesting offers a clear way forward for the conservation of hawksbill turtles in the region.

• 出版日期2012