The thermal breadth of temperate and tropical freshwater insects supports the climate variability hypothesis.

ABSTRACT: Climate change involves increases in mean temperature and changes in temperature variability at multiple temporal scales but research rarely considers these temporal scales. The climate variability hypothesis (CVH) provides a conceptual framework for exploring the potential effects of annual scale thermal variability across climatic zones. The CVH predicts ectotherms in temperate regions tolerate a wider range of temperatures than those in tropical regions in response to greater annual variability in temperate regions. However, various other aspects of thermal regimes (e.g. diel variability), organisms' size and taxonomic identity are also hypothesised to influence thermal tolerance. Indeed, high temperatures in the tropics have been proposed as constraining organisms' ability to tolerate

SUBMITTER: Dewenter BS 

PROVIDER: S-EPMC10891360 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature