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Climate suggests environment‐dependent selection on lizard colour morphs

The maintenance of polymorphisms is often explained by sexual selection. However, natural selection may also constrain morphs to particular locations, causing geographical variation in morph diversity. In many well‐known polymorphic organisms in which the relevance of sexual selection on the maintenance of polymorphisms is widely supported, the role of environmental factors has been poorly studied. Here, we adopted a population‐level approach to assess the extent to which geographical variation in climate explains morph composition in a colour polymorphic lizard. We predict that rare morphs are more environmentally constrained than common morphs. Leer más.

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