Spatial differences in genetic diversity and northward migration suggest genetic erosion along the boreal caribou southern range limit and continued range retraction

Ecology and Evolution
Laura M ThompsonPaul J Wilson

Abstract

With increasing human activities and associated landscape changes, distributions of terrestrial mammals become fragmented. These changes in distribution are often associated with reduced population sizes and loss of genetic connectivity and diversity (i.e., genetic erosion) which may further diminish a species' ability to respond to changing environmental conditions and lead to local population extinctions. We studied threatened boreal caribou (Rangifer tarandus caribou) populations across their distribution in Ontario/Manitoba (Canada) to assess changes in genetic diversity and connectivity in areas of high and low anthropogenic activity. Using data from >1,000 caribou and nine microsatellite loci, we assessed population genetic structure, genetic diversity, and recent migration rates using a combination of network and population genetic analyses. We used Bayesian clustering analyses to identify population genetic structure and explored spatial and temporal variation in those patterns by assembling networks based on RST and FST as historical and contemporary genetic edge distances, respectively. The Bayesian clustering analyses identified broad-scale patterns of genetic structure and closely aligned with the RST network. The F...Continue Reading

References

Apr 12, 2001·Molecular Ecology·J C Garza, E G Williamson
May 1, 2001·Evolution; International Journal of Organic Evolution·E PetitJ Goudet
Jun 13, 2002·Proceedings of the National Academy of Sciences of the United States of America·M Girvan, M E J Newman
Mar 5, 2004·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·M E J Newman, M Girvan
Oct 13, 2004·Proceedings of the National Academy of Sciences of the United States of America·Derek SpielmanRichard Frankham
May 23, 2009·Molecular Biology and Evolution·Eric DurandOlivier François
Mar 1, 1988·Trends in Ecology & Evolution·A T Bergerud
Mar 25, 2011·Molecular Ecology Resources·Amy G VandergastStacie A Hathaway
Mar 1, 2010·Molecular Ecology Resources·Caren S Goldberg, Lisette P Waits
May 14, 2011·Molecular Ecology Resources·Laurent Excoffier, Heidi E L Lischer
May 12, 2012·Molecular Ecology·Patrick G Meirmans
Jun 1, 2012·Molecular Ecology·M Zachariah PeeryPer J Palsbøll
Jun 26, 2012·Molecular Ecology·Paul GalpernPaul Wilson
Sep 1, 2012·Molecular Ecology·Alyson M AndreasenMatthew L Forister
Jan 3, 2013·Molecular Ecology·Steffen U PaulsMarkus Pfenninger
Nov 1, 2008·Evolutionary Applications·Colin J GarrowayPaul J Wilson
Feb 1, 2012·Evolutionary Applications·R Bijlsma, Volker Loeschcke
Apr 29, 2015·Molecular Ecology Resources·Erin L KoenPaul J Wilson
Mar 22, 2016·Royal Society Open Science·Cornelya F C KlütschPaul J Wilson
Jun 30, 2016·Heredity·J WangA Caballero
Jan 28, 2017·Evolutionary Applications·Makiko MimuraAndrew P Hendry
Nov 1, 1984·Evolution; International Journal of Organic Evolution·B S Weir, C Clark Cockerham
Jan 1, 1989·Evolution; International Journal of Organic Evolution·William R Rice
Jul 12, 2017·Proceedings of the National Academy of Sciences of the United States of America·Gerardo CeballosRodolfo Dirzo
Feb 23, 2018·Ecology and Evolution·Kristin L LaidrePatrick Heagerty
Jun 26, 2018·Ecology and Evolution·Todd B CrossSara J Oyler-McCance
Jul 22, 2018·Evolutionary Applications·Gregoire LeroyJinliang Wang

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BETA
genotyping

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