Ambient temperatures differently influence colour morphs of the leaf beetle Chrysomela lapponica: Roles of thermal melanism and developmental plasticity.

Abstract excerpt

We asked whether ambient temperatures can affect morph frequencies within a subarctic population of the polymorphic leaf beetle Chrysomela lapponica through thermal melanism and/or developmental plasticity. Body temperature increased faster in beetles of dark morph than in beetles of light morph under exposure to artificial irradiation. Dark males ran faster than light males in both field and laboratory...

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