Climate, immigration and speciation shape terrestrial and aquatic biodiversity in the European Alps.

ABSTRACT: Quaternary climate fluctuations can affect speciation in regional biodiversity assembly in two non-mutually exclusive ways: a glacial species pump, where isolation in glacial refugia accelerates allopatric speciation, and adaptive radiation in underused adaptive zones during ice-free periods. We detected biogeographic and genetic signatures associated with both mechanisms in the assembly of the biota of the European Alps. Age distributions of endemic and widespread species within aquatic and terrestrial taxa (amphipods, fishes, amphibians, butterflies and flowering plants) revealed that endemic fish evolved only in lakes, are highly sympatric, and mainly of Holocene age, consistent with adaptive radiation. Endemic amphipods are ancient, suggesting preglacial radiation with limited range ex

SUBMITTER: Jardim de Queiroz L 

PROVIDER: S-EPMC9363983 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature