Please use this identifier to cite or link to this item: http://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1146
High antipredatory efficiency of insular lizards: A warning signal of excessive specimen collection?
Miguel Delibes
Eloy Revilla
María del Cármen Blázquez Moreno
Acceso Abierto
Atribución-NoComercial-SinDerivadas
DOI: 10.1371/journal.pone.0029312
URL: http://journals.plos.org/plosone/
DOI: 10.1371/journal.pone.0029312
Behavior, lizard
"We live-captured lizards on islands in the Gulf of California and the Baja California peninsula mainland, and compared their ability to escape predation. Contrary to expectations, endemic lizard species from uninhabited islands fled from humans earlier and more efficiently than those from peninsular mainland areas. In fact, 58.2% (n = 146) of the lizards we tried to capture on the various islands escaped successfully, while this percentage was only 14.4% (n = 160) on the peninsular mainland. Separate evidence (e.g., proportion of regenerated tails, low human population at the collection areas, etc.) challenges several potential explanations for the higher antipredatory efficiency of insular lizards (e.g., more predation pressure on islands, habituation to humans on the peninsula, etc.). Instead, we suggest that the ability of insular lizards to avoid predators may be related to harvesting by humans, perhaps due to the value of endemic species as rare taxonomic entities. If this hypothesis is correct, predation-related behavioral changes in rare species could provide early warning signals of their over-exploitation, thus encouraging the adoption of conservation measures."
2011
Artículo
Plos One
Inglés
Delibes M, Blazquez MdC, Soriano L, Revilla E, Godoy JA (2011) High antipredatory efficiency of insular lizards: A warning signal of excessive specimen collection? Plos One 6(12): e29312. doi:10.1371/journal.pone.0029312
ECOLOGÍA ANIMAL
Versión publicada
publishedVersion - Versión publicada
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