Evolution and plasticity of thermal performance: an analysis of variation in thermal tolerance and fitness in 22 Drosophila species.

ABSTRACT: The thermal biology of ectotherms is often used to infer species' responses to changes in temperature. It is often proposed that temperate species are more cold-tolerant, less heat-tolerant, more plastic, have broader thermal performance curves (TPCs) and lower optimal temperatures when compared to tropical species. However, relatively little empirical work has provided support for this using large interspecific studies. In the present study, we measure thermal tolerance limits and thermal performance in 22 species of Drosophila that developed under common conditions. Specifically, we measure thermal tolerance (CT_min and CT_max) as well as the fitness components viability, developmental speed and fecundity at seven temperatures to construct TPCs for each of these speci

SUBMITTER: MacLean HJ 

PROVIDER: S-EPMC6606468 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature