Thermal sensitivity of metabolic rate mirrors biogeographic differences between teleosts and elasmobranchs.

ABSTRACT: Environmental temperature affects physiological functions, representing a barrier for the range expansions of ectothermic species. To understand the link between thermal physiology and biogeography, a key question is whether among-species thermal sensitivity of metabolic rates is mechanistically constrained or buffered through physiological remodeling over evolutionary time. The former conception, the Universal Temperature Dependence hypothesis, predicts similar among- and within-species thermal sensitivity. The latter conception, the Metabolic Cold Adaptation hypothesis, predicts lower among-species thermal sensitivity than within-species sensitivity. Previous studies that tested these hypotheses for fishes overwhelmingly investigated teleosts with elasmobranchs understudied. Here, we sho

SUBMITTER: Watanabe YY 

PROVIDER: S-EPMC10097821 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature