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Aim
Ecogeographical rules link animal colours, especially those produced by melanin pigments, with variation in environmental conditions over wide geographical scales. In particular, Gloger’s rule, coined for endothermic animals in two versions, suggests that tegument darkness should increase at high temperature, as well as in highly humid environments. On the other hand, the thermal melanism hypothesis...
Understanding the evolutionary forces maintaining avian color polymorphisms is a major challenge in evolutionary ecology. Aiming to give new insights into the functional basis of color polymorphism, we studied plumage color variation and its associations with fitness proxies in an individually marked population of scops owls Otus scops during 8 yr. We found a repeatable method to assign individuals...
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