Filters: partyWithName: Dustin A Wood (X) > partyWithName: U.S. Geological Survey, Western Ecological Research Center (X) > partyWithName: Ecosystems (X)
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Conversion and fragmentation of wildlife habitat often leads to smaller and isolated populations and can reduce a species’ ability to disperse across the landscape. As a consequence, genetic drift can quickly lower genetic variation and increase vulnerability to extirpation. For species of conservation concern, quantification of population size and connectivity can clarify the influence of genetic drift in local populations and provides important information for conservation management and recovery strategies. Here, we used genome-wide single nucleotide polymorphism (SNP) data and capture-mark-recapture methods to evaluate the population structure, genetic diversity and abundance of seven focal sites of the endangered...
Genetic samples in the form of a small blood sample were collected from 263 Bell’s vireos (Vireo bellii) in drainages throughout southern and central California, Arizona, southern Nevada, and southwestern Utah. We used population genomic techniques to delineate the range limit between the Least Bell’s Vireo (V. b. pusillus) and its conspecific geographical neighbor, the Arizona Bell’s Vireo (V. b. arizonae). This study provides a taxonomic classification of individuals sampled where the two subspecies meet. Moreover, it allows an estimate of genetic diversity and trends in both taxa, estimates sources and levels of dispersal and gene flow among drainages, and allows us to assess progress of recovery and effectiveness...
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