Correlated evolution of thermal characteristics and foraging strategy in lacertid lizards
نویسندگان
چکیده
1. We investigated the association between field body temperatures (Tb), field air temperatures (Ta), and their differences (D) with measurements of foraging activity (percentage of time moving (PTM), number of movements per minute (MPM) and proportion of prey attacked while moving (PAM)) for 25 species of lacertid lizards. 2. Lizards active at relatively high field body temperatures tended to have higher PTM and PAM values. We found no association between temperatures and MPM. The difference D did not co-vary with PTM and MPM, but showed a positive trend with PAM. 3. Our results seem robust with regard to the assumptions of different models of evolution and to the phylogenetic trees used. r 2007 Elsevier Ltd. All rights reserved.
منابع مشابه
Field Body Temperatures, Mechanisms of Thermoregulation and Evolution of Thermal Characteristics in Lacertid Lizards
Castilla, A. M., Van Damme, R. & Bauwens, D.: Field body temperatures, mechanisms of thermoregulation and evolution of thermal characteristics in lacertid lizards. Nat. Croat., Vol. 8, No. 3., 253–274, 1999, Zagreb. We discuss three aspects of the thermal biology of lacertid lizards. First, we provide an overview of the available data on field body temperatures (Tb), the thermal sensitivity of ...
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