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Climate Effects on Growth, Body Condition, and Survival Depend on the Genetic Characteristics of the Population [The American Naturalist]

Keywords : age-structured populations, age class effects, life-history traits, Zootoca vivipara, humidity, color morph frequency.

par Frédéric Magné - publié le

Climatic change is expected to affect individual life histories and population dynamics, potentially increasing vulnerability to extinction. The importance of genetic diversity has been highlighted for adaptation and population persistence. However, whether responses of life-history traits to a given environmental condition depend on the genetic characteristics of a population remains elusive. Here we tested this hypothesis in the lizard Zootoca vivipara by simultaneously manipulating habitat humidity, a major climatic predictor of Zootoca’s distribution, and adult male color morph frequency, a trait with genome-wide linkage.(...)

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