Mitochondrial DNA markers of loggerhead marine turtles (<em>Caretta caretta</em>) (Testudines: Cheloniidae) nesting at Kyparissia Bay, Greece, confirm the western Greece unit and regional structuring

Carlos Carreras; ALan F. Rees; Annette C. Broderick; Brendan J. Godley; Dimitris Margaritoulis

doi:10.3989/scimar.03865.27B

Autores/as

Carlos Carreras Marine Turtle Research Group, College of Life and Environmental Sciences, University of Exeter
ALan F. Rees Marine Turtle Research Group, College of Life and Environmental Sciences, University of Exeter
Annette C. Broderick Marine Turtle Research Group, College of Life and Environmental Sciences, University of Exeter
Brendan J. Godley Marine Turtle Research Group, College of Life and Environmental Sciences, University of Exeter
Dimitris Margaritoulis ARCHELON, the Sea Turtle Protection Society of Greece

DOI:

https://doi.org/10.3989/scimar.03865.27B

Palabras clave:

estructura poblacional, especie amenazada, conservación, Caretta, Mediterráneo, ADN mitocondrial

Resumen

El uso de marcadores genéticos ha sido muy extendido en tortugas marinas con el fin de determinar la estructura poblacional y el origen de individuos en zonas comunes de alimentación; elementos clave para entender su ecología y desarrollar estrategias efectivas de conservación. Sin embargo, este tipo de análisis es muy sensible a la falta de información de ciertas zonas de nidificación, especialmente de aquellas muy abundantes. El perfil genético de las tortugas nidificantes de la bahía de Kyparissia (Grecia occidental) todavía no ha sido descrito usando la versión extendida del marcador mitocondrial (mtDNA) usado históricamente en esta especie, a pesar de ser la segunda zona de nidificación más abundante de todo el Mediterráneo. Con el fin de cubrir este vacío de información, se secuenciaron 36 individuos nidificantes de la bahía de Kyparissia y se compararon las frecuencias de haplotipos obtenidas con datos publicados de otras zonas de nidificación del Mediterráneo. Los resultados confirmaron la conexión entre Kyparissia y otras zonas de nidificación de Grecia así como el aislamiento de este grupo de Grecia occidental con el resto de zonas de nidificación del Mediterráneo. Como consecuencia de este aislamiento, todo parece indicar que este abundante grupo de zonas de nidificación (casi el 30% de la producción del Mediterráneo) no podría contribuir de forma significativa a la recuperación del número de hembras nidificantes en otras poblaciones en declive del Mediterráneo.

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