Characterization of a Subtropical Hawksbill Sea Turtle (Eretmocheyles imbricata) Assemblage Utilizing Shallow Water Natural and Artificial Habitats in the Florida Keys

  title={Characterization of a Subtropical Hawksbill Sea Turtle (Eretmocheyles imbricata) Assemblage Utilizing Shallow Water Natural and Artificial Habitats in the Florida Keys},
  author={Jonathan C. Gorham and David R. Clark and Michael J. Bresette and Dean A. Bagley and Carrie L. Keske and Stephen L. Traxler and Blair E. Witherington and Brian Michael Shamblin and Campbell J Nairn},
  journal={PLoS ONE},
In order to provide information to better inform management decisions and direct further research, vessel-based visual transects, snorkel transects, and in-water capture techniques were used to characterize hawksbill sea turtles in the shallow marine habitats of a Marine Protected Area (MPA), the Key West National Wildlife Refuge in the Florida Keys. Hawksbills were found in hardbottom and seagrass dominated habitats throughout the Refuge, and on man-made rubble structures in the Northwest… Expand
Home Range and Movement Patterns of Subadult Hawksbill Sea Turtles in Southeast Florida
Competition for a limited number of preferred refuges, or “roosts,” may restrict the extent of each turtle's home range and influence the abundance and distribution of the Hawksbill Turtles that occupy this site. Expand
A matrix population model for the hawksbill sea turtle (Eretmochelys imbricata) in the Gulf of Paria, Venezuela
Protection of stage 1 is essential to the population of hawksbills in the region, although uncertainties of survivorship of stage 2 and fecundity of stage 4 were not properly confirmed locally. Expand
Global phylogeography of the critically endangered hawksbill turtle (Eretmochelys imbricata)
A global phylogeographic analysis using a compilation of previously published mitochondrial haplotype data to understand the dynamics and diversity of hawksbill populations worldwide revealed a complex demographic pattern associated to hawks Bill phyloGeography since the Pliocene. Expand
Juvenile hawksbill residency and habitat use within a Caribbean marine protected area
Understanding the spatial ecology of highly mobile marine vertebrates is necessary for informing conservation and management strategies aimed at protecting such species. Buck Island Reef NationalExpand
High-resolution movements of critically endangered hawksbill turtles help elucidate conservation requirements in northern Australia
The distribution of adult foraging grounds was similar to simulated dispersal patterns of hatchling turtles from distant rookeries, thus highlighting the ecological significance of the Gulf of Carpentaria for hawksbill turtles. Expand
Genetic structure of the hawksbill turtle rookery and foraging aggregation in Tobago, West Indies
Mixed stock analysis was conducted to estimate the natal origins of immature hawksbills foraging in Tobago waters and the contribution of the Tobago rookery to regional foraging aggregations using rookery size as a constraint. Expand
Low Diversity and Strong Genetic Structure Between Feeding and Nesting Areas in Brazil for the Critically Endangered Hawksbill Sea Turtle
Marine turtle nesting areas are characterized by receiving several females every year. The species Eretmochelys imbricata, known as hawksbill turtle is listed as Critically Endangered by the IUCN,Expand
Genetic structure, origin, and connectivity between nesting and foraging areas of hawksbill turtles of the Yucatan Peninsula: A study for conservation and management
Anthropogenic activities have resulted in declines in many marine turtle populations. Their complex life cycle (e.g. female philopatry, hatchling migration, adult movements between breeding andExpand
A New Approach to Mixed Stock Analysis that Informs on the Management and Conservation of Hawksbill in the Wider Caribbean: the Case of the Legal Fishery in Jardines del Rey, Cuba
New MSAs were assayed using the annual haplotype frequencies of aggregations and rookeries of Eretmochelys imbricata in the Wider Caribbean (WC), and the population size was selected according to the sampler year most relevant on the maturity of the aggregation. Expand
Profiles of environmental contaminants in hawksbill turtle egg yolks reflect local to distant pollution sources among nesting beaches in the Yucatán Peninsula, Mexico.
Spatial planning of protected areas and the use of turtle eggs in biomonitoring needs to account for the spatial variation in pollution profiles among nesting beaches, reflecting the long-term accumulation of these pollutants at regional scales. Expand


Home range of immature hawksbill turtles (Eretmochelys imbricata (Linnaeus)) at two Caribbean islands
It is concluded that immature hawksbill turtles maintain a limited home range area and appear resident at the feeding grounds of Mona and Monito Islands for periods of at least several years. Expand
—A foraging aggregation of Hawksbill Turtles (Eretmochelys imbricata) on the Southeast Florida Continental Reef Tract off Palm Beach County, Florida, is the first described within the waters of theExpand
Ecology of juvenile hawksbills (Eretmochelys imbricata) at Buck Island Reef National Monument, US Virgin Islands
Gastric lavages indicated that Zoanthids were the primary food source for hawksbills, and these results contribute to the understanding of juvenile hawksbill ecology and serve as a baseline for future studies or inventories of hawkbills in the Caribbean. Expand
Hawksbill sea turtles in seagrass pastures: success in a peripheral habitat
Assessment of a 30-year mark-recapture study of hawksbills and green turtles in the southern Bahamas finds that peripheral seagrass habitats can support healthy, productive hawksbill aggregations. Expand
Habitat effect on hawksbill turtle growth rates on feeding grounds at Mona and Monito Islands, Puerto Rico
Growth rates in the hawksbill turtles studied are similar to those reported for other Caribbean localities, but faster than hawksbills of the southern Great Barrier Reef, Australia. Expand
Reproductive biology of the Hawksbill Eretmochelys imbricata at Tortuguero, Costa Rica, with notes on the ecology of the species in the caribbean
The mean carapace length of hawksbills has shown a steady decline, suggesting that the population is not demographically stable, and there is increasing evidence from tag returns that the Tortuguero hawksbill may also share the feeding grounds of the tortuguero green turtle in the Miskito Cays, Nicaragua. Expand
Home range, habitat use, and migrations of hawksbill turtles tracked from Dry Tortugas National Park, Florida, USA
To determine habitat-use patterns of sub-adult hawksbills Eretmochelys imbricata, we conducted satellite- and acoustic-tracking of 3 turtles captured in August 2008 within Dry Tor- tugas NationalExpand
The Ecology and Migrations of Sea Turtles 8. Tests of the Developmental Habitat Hypothesis
The studies in Panama and Bermuda reported in this paper use netting, mark/recapture, laparoscopy, and satellite telemetry to investigate size distributions, maturity status, residency, site fidelity, and developmental migrations of three species of sea turtles at three study sites. Expand
Size-class partitioning and herding in a foraging group of green turtles Chelonia mydas
It is hypothesized that adult and large subadult green turtles use deeper water habitats than juveniles, and this size-class parti- tioning may be due to differing habitat requirements and predation risk. Expand
Population origin and historical demography in hawksbill (Eretmochelys imbricata) feeding and nesting aggregates from Brazil
It was shown that hawksbills from feeding aggregates at the Brazilian islands of Fernando de Noronha and Rocas Atoll were mainly derived from Brazilian and Caribbean rookeries, although some were related to individuals from the eastern Atlantic and Indo-Pacific, indicating large transoceanic migrations for this species. Expand