Multinational tagging efforts illustrate regional scale of distribution and threats for east pacific green turtles (Chelonia mydas agassizii)
| Autor: | Michael S. Coyne, Catherine E. Hart, Wallace J. Nichols, Gabriela S. Blanco, Matthew J. Witt, Antonio Resendiz, Brendan J. Godley, Timothy Jones, Carlos Delgado-Trejo, Jeffrey A. Seminoff |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Male
Marine conservation Conservation of Natural Resources Risk Assesment Foraging Distribution (economics) lcsh:Medicine Conservation Breeding purl.org/becyt/ford/1 [https] Ciencias Biológicas Peninsula Eastern Pacific Animals Telemetry Spacecraft purl.org/becyt/ford/1.6 [https] lcsh:Science Rookery Multidisciplinary geography.geographical_feature_category biology Ecology business.industry East Pacific geen turtles lcsh:R biology.organism_classification Turtles Fishery Geography Sea turtle Animal Migration Female lcsh:Q Flipper Scale (map) business CIENCIAS NATURALES Y EXACTAS Research Article Conservación de la Biodiversidad |
| Zdroj: | PLoS ONE, Vol 10, Iss 2, p e0116225 (2015) CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET PLoS ONE |
| ISSN: | 1932-6203 |
| Popis: | To further describe movement patterns and distribution of East Pacific green turtles (Chelonia mydas agassizii) and to determine threat levels for this species within the Eastern Pacific.In order to do this we combined published data from existing flipper tagging and early satellite tracking studies with data from an additional 12 satellite tracked green turtles (1996-2006). Three of these were tracked from their foraging grounds in the Gulf of California along the east coast of the Baja California peninsula to their breeding grounds in Michoacán (1337-2928 km). In addition, three post-nesting females were satellite tracked from Colola beach, Michoacán to their foraging grounds in southern Mexico and Central America (941.3-3020 km). A further six turtles were tracked in the Gulf of California within their foraging grounds giving insights into the scale of ranging behaviour. Turtles undertaking longdistance migrations showed a tendency to follow the coastline. Turtles tracked within foraging grounds showed that foraging individuals typically ranged up to 691.6 km (maximum) from release site location. Additionally, we carried out threat analysis (using the cumulative global human impact in the Eastern Pacific) clustering pre-existing satellite tracking studies from Galapagos, Costa Rica, and data obtained from this study; this indicated that turtles foraging and nesting in Central American waters are subject to the highest anthropogenic impact. Considering that turtles from all three rookeries were found to migrate towards Central America, it is highly important to implement conservation plans in Central American coastal areas to ensure the survival of the remaining green turtles in the Eastern Pacific. Finally, by combining satellite tracking data from this and previous studies, and data of tag returns we created the best available distributional patterns for this particular sea turtle species, which emphasized that conservation measures in key areas may have positive consequences on a regional scale. Fil: Hart, Catherine E.. University Of Exeter; Reino Unido Fil: Blanco, Gabriela Silvina. Drexel University; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina Fil: Coyne, Michael S.. University Of Exeter; Reino Unido. SEATURTLE.org; Estados Unidos Fil: Delgado Trejo, Carlos. Universidad Michoacána de San Nicolas de Hidalgo. Instituto de Investigaciones sobre los Recursos Naturales; México Fil: Godley, Brendan J.. University Of Exeter; Reino Unido Fil: Jones, T. Todd. Pacific Islands Fisheries Science Center; Estados Unidos Fil: Resendiz, Antonio. Secretaria de Medio Ambiente y Recursos Naturales. Dirección General de Vida Silvestre. Instituto Nacional de Ecología; México Fil: Seminoff, Jeffrey A.. Southwest Fisheries Science Center; Estados Unidos Fil: Witt, Mathew. University Of Exeter; Reino Unido Fil: Nichols, Wallace J.. California Academy of Sciences; Estados Unidos |
| Databáze: | OpenAIRE |
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