Temperature- versus precipitation-limitation shape local temperature tolerance in a Holarctic freshwater crustacean.

ABSTRACT: Species with wide geographical distributions are often adapted locally to the prevailing temperatures. To understand how they respond to ongoing climatic change, we must appreciate the interplay between temperature, seasonality and the organism's life cycle. The temperature experienced by many organisms results from an often-overlooked combination of climate and phenology. Summer-active (high latitude) populations are expected to adapt to local summer temperatures, but this is not expected for populations that outlive the summer in their dormant stage (low latitude, precipitation-limited). We recorded reproduction and survival in genotypes from 123 Holarctic populations of Daphnia magna during a multi-generation thermal ramp experiment. Genotypes from summer-active populations showed a pos

SUBMITTER: Seefeldt L 

PROVIDER: S-EPMC6661336 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature