Journal article

Major range loss predicted from lack of heat adaptability in an alpine Drosophila species

Martin-Carl Kinzner, Alexander Gamisch, Ary A Hoffmann, Brigitta Seifert, Marlene Haider, Wolfgang Arthofer, Birgit C Schlick-Steiner, Florian M Steiner

SCIENCE OF THE TOTAL ENVIRONMENT | ELSEVIER | Published : 2019

Abstract

Climate warming is threatening biodiversity worldwide. Climate specialists such as alpine species are especially likely to be vulnerable. Adaptation by rapid evolution is the only long-term option for survival of many species, but the adaptive evolutionary potential of heat resistance has not been assessed in an alpine invertebrate. Here, we show that the alpine fly Drosophila nigrosparsa cannot readily adapt to heat stress. Heat-exposed flies from a regime with increased ambient temperature and a regime with increased temperature plus artificial selection for heat tolerance were less heat tolerant than the control group. Increased ambient temperature affected negatively both fitness and com..

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University of Melbourne Researchers