Prey specialization may influence patterns of gene flow in wolves of the Canadian Northwest

Molecular Ecology
L E CarmichaelC Strobeck

Abstract

This study characterizes population genetic structure among grey wolves (Canis lupus) in northwestern Canada, and discusses potential physical and biological determinants of this structure. Four hundred and ninety-one grey wolves, from nine regions in the Yukon, Northwest Territories and British Columbia, were genotyped using nine microsatellite loci. Results indicate that wolf gene flow is reduced significantly across the Mackenzie River, most likely due to the north-south migration patterns of the barren-ground caribou herds that flank it. Furthermore, although Banks and Victoria Island wolves are genetically similar, they are distinct from mainland wolf populations across the Amundsen Gulf. However, low-level island-mainland wolf migration may occur in conjunction with the movements of the Dolphin-Union caribou herd. Whereas previous authors have examined isolation-by-distance in wolves, this study is the first to demonstrate correlations between genetic structure of wolf populations and the presence of topographical barriers between them. Perhaps most interesting is the possibility that these barriers reflect prey specialization by wolves in different regions.

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Citations

Dec 19, 2015·Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis·Shaoquan MengBaowei Zhang
Mar 19, 2005·Molecular Ecology·Byron V WeckworthJoseph Cook
Mar 19, 2005·Molecular Ecology·Benjamin N SacksHolly B Ernest
Aug 19, 2004·Molecular Ecology·K WorleyD W Coltman
Jul 13, 2004·Molecular Ecology·Eli GeffenRobert K Wayne
Apr 16, 2009·Molecular Ecology·Stephan KoblmüllerJennifer A Leonard
Aug 23, 2006·Conservation Biology : the Journal of the Society for Conservation Biology·Anthony PovilitisC Dusti Becker
Nov 17, 2006·Molecular Ecology·Malgorzata PilotStephan M Funk
Aug 11, 2007·Molecular Ecology·L E CarmichaelC Strobeck
Sep 18, 2007·Molecular Ecology·Eli GeffenRobert K Wayne
Oct 9, 2013·Ecology and Evolution·Jan F KamlerDavid W Macdonald
Nov 13, 2018·PLoS Genetics·Mikkel-Holger S SindingM Thomas P Gilbert
Feb 23, 2019·Molecular Ecology·Linnéa SmedsHans Ellegren
Dec 19, 2015·Genome Research·Zhenxin FanRobert K Wayne
Jul 6, 2007·The Journal of Heredity·Lorna J KennedyGeorge M Happ
Apr 3, 2007·Molecular Biology and Evolution·A Rus HoelzelNancy Black
Jan 19, 2020·Journal of Theoretical Biology·Hal Whitehead
Oct 16, 2003·Comptes rendus biologies·Ettore Randi
Mar 29, 2003·Genetics·Gregory A Wilson, Bruce Rannala

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