No geographic variation in thermoregulatory colour plasticity and limited variation in heat-avoidance behaviour in Battus philenor caterpillars.

Abstract excerpt

Phenotypic plasticity can help organisms cope with variation in their current environment, including temperature variation, but not all environments are equally variable. In the least variable or extreme environments, plasticity may no longer be used. In this case, the plasticity could be lost altogether, or it could persist with either the same or an altered reaction norm, depending on factors such as the...

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