The British Herpetological Society

The Herpetological Journal is the Society's prestigious quarterly scientific journal. Articles are listed in Biological Abstracts, Current Awareness in Biological Sciences,Current Contents, Science Citation Index, and Zoological Record.

 ISSN 0268-0130

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pdf 08. Variation in Preferred Body Temperature in an Oviparous Population of Lacerta (Zootoca) Vivipara


Open Access

pp. 51-55
Authors: Carretero, M. A.; Roig, J. M. & Llorente, G. A.

Abstract: The intraspecific variation of preferred temperatures (Tp) was analysed in an oviparous population of Lacerta vivipara and compared with viviparous populations. Lizards collected in central Pyrenees were exposed to a thermal gradient and Tp was measured at four time intervals. Tp was strongly dependent on lizard condition (males > non-pregnant females > pregnant females = immatures) and more weakly with time of day (early morning > mid-day). Individual females increased their Tp after egg-laying. Class-by-class comparisons did not reveal substantial differences with viviparous populations as expected for the thermal rigidity hypothesis. Nevertheless, on a short time scale, Tp should be interpreted as a compromise between different selective pressures including not only thermal environment but also reproductive condition and energy allocation.


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Please note that as from Volume 31 Number 1 (January 2021) on, the Herpetological Journal will be available as an online publication only - the last print edition will be Volume 30 Number 4.   

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