Magnetic features of marine black turtle natal beaches and implications for nest selection

The beaches of Colola and Maruata, Michoacán, southern México are nesting places of the marine black turtle, Chelonia agassizi. Marine turtles use magnetic cues to orient their long distance navigation, and might also use magnetic such to refine their geographical position within their natal area. W...

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Detalles Bibliográficos
Autores: A. L. Fuentes-Farias, J. Urrutia-Fucugauchi, G. Gutiérrez-Ospina, L. Pérez-Cruz, V. H. Garduño-Monroy
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:México
Institución:Universidad Michoacana de San Nicolás de Hidalgo
Repositorio:Redalyc-UMSNH
OAI Identifier:oai:redalyc.org:56813225001
Acceso en línea:https://www.redalyc.org/articulo.oa?id=56813225001
Access Level:acceso abierto
Palabra clave:Ciencias de la Tierra
beach sands
rock magnetism
southern Mexico
Marine black turtles
Colola and Maruata beaches
Descripción
Sumario:The beaches of Colola and Maruata, Michoacán, southern México are nesting places of the marine black turtle, Chelonia agassizi. Marine turtles use magnetic cues to orient their long distance navigation, and might also use magnetic such to refine their geographical position within their natal area. We present results on the characterization of nesting beaches in terms of magnetic properties. Hysteresis parameters may allow distinguishing nesting from non-nesting beaches. The results may have implications for the selection and identification of nesting sites by marine black turtles, in the context of magnetic orientation mechanisms.