Population structure and landscape genetics of western ruffed grouse
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Date
2017
Authors
Jensen, Ashley Marie
University of Lethbridge. Faculty of Arts and Science
Journal Title
Journal ISSN
Volume Title
Publisher
Lethbridge, Alta. : Universtiy of Lethbridge, Department of Biological Sciences
Abstract
This study was the first to examine the genetic structure of a widespread game
bird, the Ruffed Grouse (Bonasa umbellus). We uncovered multiple factors acting in
concert that are likely responsible for mediating contemporary population connectivity in
this species. A combination of autosomal intron, mitochondrial, and high-resolution
microsatellite markers revealed many populations of Ruffed Grouse are genetically
isolated. Furthermore, the addition of landscape genetic methods not only corroborated
genetic structure results, but also uncovered compelling evidence that dispersal resistance
created by unsuitable habitat is the most important factor mediating population
connectivity among the sampled populations. Our data revealed evidence of high
elevation mountains acting as dispersal barriers, as well as two corridors creating limited
connectivity among populations that are otherwise isolated by the Rocky Mountains. This
research may have implications for both our study species and other inhabitants of the
early successional forest habitat required by Ruffed Grouse.
Description
Keywords
landscape genetics , wildlife , population genetics , population ecology , biogeography , Ruffed grouse--Research , Ruffed grouse--Dispersal , Ruffed grouse--Effect of habitat modification on , Animal population genetics--Research , Biogeography , Isolating mechanisms , Molecular population biology , Fragmented landscapes