Save

Cooperate or compete? Influence of sex and body size on sheltering behaviour in the wall lizard, Podarcis muralis

In: Behaviour
Authors:
Fabien Aubret aStation d’Ecologie Expérimentale de Moulis, CNRS, Moulis, France

Search for other papers by Fabien Aubret in
Current site
Google Scholar
PubMed
Close
,
Mélodie Tort aStation d’Ecologie Expérimentale de Moulis, CNRS, Moulis, France

Search for other papers by Mélodie Tort in
Current site
Google Scholar
PubMed
Close
,
Radika J. Michniewicz aStation d’Ecologie Expérimentale de Moulis, CNRS, Moulis, France

Search for other papers by Radika J. Michniewicz in
Current site
Google Scholar
PubMed
Close
,
Gaëlle Blanvillain aStation d’Ecologie Expérimentale de Moulis, CNRS, Moulis, France

Search for other papers by Gaëlle Blanvillain in
Current site
Google Scholar
PubMed
Close
, and
Aurélie Coulon bCentre d’Ecologie et des Sciences de la Conservation, UMR 7204 MNHN/CNRS/UPMC, Brunoy, France
cCentre d’Ecologie Fonctionnelle et Evolutive, UMR 5175, Montpellier, France

Search for other papers by Aurélie Coulon in
Current site
Google Scholar
PubMed
Close
Download Citation Get Permissions

Access options

Get access to the full article by using one of the access options below.

Institutional Login

Log in with Open Athens, Shibboleth, or your institutional credentials

Login via Institution

Purchase

Buy instant access (PDF download and unlimited online access):

$40.00

Reptile sheltering behaviour, despite profound life history ramifications, remains poorly investigated. Whether or not individuals share a suitable shelter or, conversely, exclude conspecifics may depend on associated costs (resource partitioning, sexual harassment, disease or parasite contamination) and benefits (predation risk dilution, thermal resilience, information sharing). We performed two experiments on field caught wall lizards (Podarcis muralis), a highly territorial species, to investigate the relative roles of sex and body size in night sheltering. In the first experiment, random pairs of lizards were offered two identical shelters. Lizards either shared a shelter, or sheltered separately. In the second experiment, different random pairs of lizards were offered only one shelter so as to elicit a share or compete response. Body size and sex both appeared as significant drivers for sheltering patterns. Unexpectedly, wall lizards often chose to share shelters. When only one shelter (too small to accommodate two adult lizards) was available, many lizards rejected the sheltering option in preference for aggregation. Such aggregative behaviour was not sex dependant, and may reflect thermoregulatory or anti-predatory benefits. Our results nevertheless suggest that cooperative behaviour may exist in wall lizards.

Content Metrics