Population correlates of rapid captive-induced maladaptation in a wild fish.

ABSTRACT: Understanding the extent to which captivity generates maladaptation in wild species can inform species recovery programs and elucidate wild population responses to novel environmental change. Although rarely quantified, effective population size (N _e ) and genetic diversity should influence the magnitude of plastic and genetic changes manifested in captivity that reduce wild fitness. Sexually dimorphic traits might also mediate consequences of captivity. To evaluate these relationships, we generated >600 full- and half-sibling families from nine wild brook trout populations, reared them for one generation under common, captive environmental conditions and contrasted several fitness-related traits in wild versus captive lines. We found substantial variation in lifet

SUBMITTER: Fraser DJ 

PROVIDER: S-EPMC6691219 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature