Predicting the success of an invader: Niche shift versus niche conservatism.

ABSTRACT: Invasive species can encounter environments different from their source populations, which may trigger rapid adaptive changes after introduction (niche shift hypothesis). To test this hypothesis, we investigated whether postintroduction evolution is correlated with contrasting environmental conditions between the European invasive and source ranges in the Asian tiger mosquito Aedes albopictus. The comparison of environmental niches occupied in European and source population ranges revealed more than 96% overlap between invasive and source niches, supporting niche conservatism. However, we found evidence for postintroduction genetic evolution by reanalyzing a published ddRADseq genomic dataset from 90 European invasive populations using genotype-environment association (GEA) methods

SUBMITTER: Sherpa S 

PROVIDER: S-EPMC6875661 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature