A comparative study of preferred body temperatures and critical thermal tolerance limits among populations of Zootoca vivipara (Squamata

Lacertidae) along an altitudinal gradient

L. Gvoždík, A. M. Castilla

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

We compared preferred body temperatures, critical thermal minima, and maxima, and tolerance ranges among four populations of Zootoca vivipara (formerly Lacerta vivipara) distributed along an altitudinal gradient (250-1450 m) to examine whether different thermal environments have induced a change in these thermal characteristics. Lizards in all populations had similar preferred body temperatures and critical thermal limits, suggesting that acclimation or adaptation of these traits to different thermal environments did not occur. Subadult females and gravid females preferred lower body temperatures than non-gravid females and subadult and adult males. Preferred body temperatures differed among individuals of the same age and sex within a particular population. In contrast to the negligible among-population variation, preferred body temperatures varied considerably within populations in Z. vivipara.

Original languageEnglish
Pages (from-to)486-492
Number of pages7
JournalJournal of Herpetology
Volume35
Issue number3
Publication statusPublished - 2001
Externally publishedYes

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Lacertidae
body temperature
Squamata
heat tolerance
comparative study
tolerance
heat
Lacerta
gravid females
cold tolerance
acclimation
lizard
lizards
gender

ASJC Scopus subject areas

  • Animal Science and Zoology

Cite this

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