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Colour polymorphism is associated with lower extinction risk in birds [Globale Change Biology]

Christophe Thébaud & Lisa Jacquin

par Frédéric Magné - publié le , mis à jour le

Colour polymorphisms have played a major role in enhancing current understanding of how selection and demography can impact phenotypes. Because different morphs often display alternative strategies and exploit alternative ecological niches, colour polymorphism can be expected to promote adaptability to environmental changes. However, whether and how it could influence populations’ and species’ response to global changes remains debated. To address this question, we built an up-to-date and complete database on avian colour polymorphism based on the examination of available data from all 10,394 extant bird species.(...)

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