Long-term study shows that increasing body size in response to warmer summers is associated with a higher mortality risk in a long-lived bat species.

ABSTRACT: Change in body size is one of the universal responses to global warming, with most species becoming smaller. While small size in most species corresponds to low individual fitness, small species typically show high population growth rates in cross-species comparisons. It is unclear, therefore, how climate-induced changes in body size ultimately affect population persistence. Unravelling the relationship between body size, ambient temperature and individual survival is especially important for the conservation of endangered long-lived mammals such as bats. Using an individual-based 24-year dataset from four free-ranging Bechstein's bat colonies (Myotis bechsteinii), we show for the first time a link between warmer summer temperatures, larger body sizes and increased mortality risk. O

SUBMITTER: Mundinger C 

PROVIDER: S-EPMC8170209 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature