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Non-additive effects of simulated heat waves and predators on prey phenotype and transgenerational phenotypic plasticity [Global Change Biology]

Arnaud Sentis et Jean-Louis Hemptinne

par Frédéric Magné - publié le , mis à jour le

Understanding the effects of extreme climatic events on species and their interactions is of paramount importance for predicting and mitigating the impacts of climate change on communities and ecosystems. However, the joint effects of extreme climatic events and species interactions on the behaviour and phenotype of organisms remain poorly understood, leaving a substantial gap in our knowledge on the impacts of climatic change on ecological communities. Using an aphid–ladybeetle system, we experimentally investigated the effects of predators and heat shocks on prey body size, microhabitat use, and transgenerational phenotypic plasticity (i.e., the asexual production of winged offspring by unwinged mothers).(...)

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