Why are sand lizard males (Lacerta agilis) not equally green?
- Mats OlssonAffiliated withDepartment of Zoology Division of Animal Ecology, University of Goteborg
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Sexual selection theory and game theory posit that cues to mate quality and fighting ability should be costly to be honest. Male sand lizards (Lacerta agilis) consider a rival's nuptial coloration when making strategic decisions in contests, and in this paper I examine five mechanisms (both proximate and ultimate ones) that could constrain male nuptial coloration. Three of these mechanisms were rejected as potential constraints on male nuptial coloration: testosterone, predation, and parasites. Two mechanisms could not be rejected as constraints on male pigmentation: differential allocation of energy to reproduction versus somatic growth among males, and social costs due to high aggression from conspecific males.
Key wordsNuptial coloration Variability Proximate causation Ultimate causation
- Why are sand lizard males (Lacerta agilis) not equally green?
Behavioral Ecology and Sociobiology
Volume 35, Issue 3 , pp 169-173
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- Nuptial coloration
- Variability Proximate causation
- Ultimate causation
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- Mats Olsson (1)
- Author Affiliations
- 1. Department of Zoology Division of Animal Ecology, University of Goteborg, Medicinaregatan 18, S-413 90, Göteborg, Sweden