Reticulate evolution as a management challenge: Patterns of admixture with phylogenetic distance in endemic fishes of western North America.

ABSTRACT: Admixture in natural populations is a long-standing management challenge, with population genomic approaches offering means for adjudication. We now more clearly understand the permeability of species boundaries and the potential of admixture for promoting adaptive evolution. These issues particularly resonate in western North America, where tectonism and aridity have fragmented and reshuffled rivers over millennia, in turn promoting reticulation among endemic fishes, a situation compounded by anthropogenic habitat modifications and non-native introductions. The melding of historic and contemporary admixture has both confused and stymied management. We underscore this situation with a case study that quantifies basin-wide admixture among a group of native and introduced fishes by employing

SUBMITTER: Bangs MR 

PROVIDER: S-EPMC7359839 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature