Artigo Acesso aberto Produção Nacional Revisado por pares

Annual activity of the lizard Liolaemus occipitalis (Squamata, Liolaemidae) in the coastal sand dunes of southern Brazil

2008; Fundación Zoobotánica de Rio Grande do Sul; Volume: 98; Issue: 1 Linguagem: Inglês

10.1590/s0073-47212008000100020

ISSN

1678-4766

Autores

Clóvis Souza Bujes, Laura Verrastro,

Tópico(s)

Animal Behavior and Reproduction

Resumo

The activity pattern of the small sand lizard, Liolaemus occipitalis Boulenger, 1885, was investigated in the coastal sand dunes at Quintão beach (Palmares do Sul, southern, Brazil), between September 1998 and August 1999. The results showed that L. occipitalis is active all along the year, but with variations in its daily and seasonal activity patterns associated to climatic changes in the habitat. Lizard activity pattern was distributed as follows: under the sand, burrowed (73%), under vegetation (14%), dislocation (7%) and basking (6%). Mean habitat temperatures (air and substrate) were significantly different. The results indicate that L. occipitalis is a thigmothermic and heliothermic species that regulates its body temperature through behavioral mechanisms, and that thermoregulation is mainly associated with substrate.

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