Multigenerational exposure to elevated temperatures leads to a reduction in standard metabolic rate in the wild.

ABSTRACT: In light of global climate change, there is a pressing need to understand and predict the capacity of populations to respond to rising temperatures. Metabolic rate is a key trait that is likely to influence the ability to cope with climate change. Yet, empirical and theoretical work on metabolic rate responses to temperature changes has so far produced mixed results and conflicting predictions.Our study addresses this issue using a novel approach of comparing fish populations in geothermally warmed lakes and adjacent ambient-temperature lakes in Iceland. This unique 'natural experiment' provides repeated and independent examples of populations experiencing contrasting thermal environments for many generations over a small geographic scale, thereby avoiding the confounding factors associate

SUBMITTER: Pilakouta N 

PROVIDER: S-EPMC7318562 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature