Density, social information, and space use in the common lizard (Lacerta vivipara) |
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| Authors: | Cote Julien; Boudsocq Simon; Clobert Jean |
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| Institution: | a Laboratoire Fonctionnement et Evolution des Systèmes Ecologiques UMR 7625, Université Pierre et Marie Curie, 7, quai Saint-Bernard, 75005 Paris, France
b Equipe Ecologie Evolutive, Université de Bourgogne, UMR CNRS 5561 BioGéoSciences, 6 Bld Gabriel, 21000 Dijon, France
c UMR 137-LEST Laboratoire d'Ecologie des sols tropicaux, IRD, 32 Avenue H. Varagnat 93143 Bondy Cedex
d Station d'Ecologie Expérimentale du CNRS à Moulis USR 2936, 09200 Saint-Girons, France |
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| Abstract: | Socially acquired information is widespread in the animal kingdom.Many individuals make behavioral decisions based on such socialinformation. In particular, individuals may decide to leaveor select their habitat based on social information. Few studieshave investigated the role of density-related information, apotential social cue about habitat quality in dispersal. Here,we tested for the possibility that the phenotype of intrudercommon lizards (Lacerta vivipara) may inadvertently carry informationabout their natal population density. We found that such informationuse is likely. The behavior of focal lizard was influenced bythe natal population density of the intruder it was interactingwith. This suggests that individuals may use the behavior ofothers to acquire appropriate information about surroundingsand to base spatial decisions on this information. Density-relatedinformation may then affect individual movement decisions andthus metapopulation dynamics. |
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| Keywords: | common lizard dispersal population density social information social interaction |
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