Asymmetrical gene flow of the recently delisted passerine black-capped vireo (Vireo atricapilla) indicates source-sink dynamics in central Texas.

ABSTRACT: Habitat fragmentation can produce metapopulations or source-sink systems in which dispersal in crucial for population maintenance. Our objective was to investigate connectivity among black-capped vireo (Vireo atricapilla) populations in tandem with a demographic study (Biological Conservation, 2016, 203, 108-118) to elucidate if central Texas populations act as a source-sink system. We genotyped 343 individuals at 12 microsatellite loci to elucidate the movement ecology of the black-capped vireo in central Texas surrounding Fort Hood; the largest and most stable breeding population of black-capped vireos inhabit Fort Hood. To gain insight into gene flow among populations, we analyzed genetic differentiation, migration rates, number of migrants, and parentage. We found statistically signifi

SUBMITTER: Hauser SS 

PROVIDER: S-EPMC6342116 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature