SHORT COMMUNICATION Environmentally induced changes in carotenoid-based coloration of female lizards: a comment on Vercken
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چکیده
*Laboratoire Fonctionnement et Evolution des Systèmes Ecologiques, CNRS UMR 7625, Université Pierre et Marie Curie, Paris, France Department of Environmental Science and Policy, University of California, Davis, CA, USA Centre de Recherche en Ecologie Expérimentale et Prédictive, Station biologique de Foljuif, Ecole Normale Supérieure, St Pierre les Nemours, France §Department of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias Naturales (MNCN-CSIC), Madrid, Spain –Instituto Pirenaico de Ecologı́a (IPE-CSIC), Avenida de Galicia s ⁄ n, Jaca (Huesca), Spain
منابع مشابه
Iridophores and Not Carotenoids Account for Chromatic Variation of Carotenoid-Based Coloration in Common Lizards (<italic>Lacerta vivipara</italic>)
Carotenoids typically need reflective background components to shine. Such components, iridophores, leucophores, and keratinand collagen-derived structures, are generally assumed to show no or little environmental variability. Here, we investigate the origin of environmentally induced variation in the carotenoid-based ventral coloration of male common lizards (Lacerta vivipara) by investigating...
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In birds, carotenoid-based plumage coloration is more dependent on physical condition and foraging abilities and less constrained developmentally than is melanin-based coloration. Thus, female mate choice for honest signals should result in more intense sexual selection on carotenoidthan on melanin-based plumage coloration. Using variation in sexual dimorphism as an indirect measure of the inte...
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Under chronic stress, carotenoid-based colouration has often been shown to fade. However, the ecological and physiological mechanisms that govern colouration still remain largely unknown. Colour changes may be directly induced by the stressor (for example through reduced carotenoid intake) or due to the activation of the physiological stress response (PSR, e.g. due to increased blood corticoste...
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Carotenoid-based sexual coloration is the classic example of an honest signal of mate quality. Animals cannot synthesize carotenoid pigments and ultimately depend on dietary sources. Thus, in carotenoid-poor environments, carotenoid coloration may be a direct indicator of foraging ability and an indirect indicator of health and vigour. Carotenoid coloration may also be affected, more directly, ...
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تاریخ انتشار 2008