Signals of corresponding genetic diversity loss in four warbler species exhibiting regional or range-wide declines.

ABSTRACT:

Background

Anthropogenic forces have resulted in staggering losses of biodiversity and population declines in many species over the past two centuries. Associated with these declines are potential adverse effects linked to small population sizes, including loss of genetic diversity and increased levels of inbreeding. Here, we leverage DNA sequencing from museum specimens to examine genetic variation between historic and contemporary populations of four species of warblers (Aves, Setophaga) that vary with respect to degree of population changes over this period. To explore the genetic impacts of varying population declines, we gathered polymorphism data at 157 PCR-amplified loci in 341 individuals sampled in two time periods-historic (1789-1955) vs contemporary (2001-2020).

Resul

SUBMITTER: Ore MJ 

PROVIDER: S-EPMC12797644 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature