作者: Stephen D. Petersen , Micheline Manseau , Paul J. Wilson
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摘要: During his expeditions to the North Pole Robert Peary harvested at least 233 caribou (Rangifer tarandus pearyi) from northeast (NE) portion of Ellesmere Island, Nunavut, Canada. To assess impact this intensive local harvest we compared historic and contemporary samples. We explored 2 models repopulation for region. In recovery model animals not hunted by were source current population. recolonization adjacent regions contributed A genetic assessment mitochondrial DNA (mtDNA) diversity comparing specimens (n 5 12) samples same region 22) indicates loss 1 major mtDNA haplogroup. significantly differentiated one another. Combined 121) 9 nuclear loci 151) indicate that NE are most similar those in south. interpret as supporting our suggest that, following Peary, dispersed north central Ellesmere. Animals west (NW) showed greatest differentiation all other regions, suggesting although proximate distance, movement between NW might always have been limited. The was unique it contained predominant haplotype high frequency (0.88), lowest observed heterozygosity (HO 0.50), highest mean relatedness (R 0.063). Our combined results highlight sensitivity populations range limit stochastic events potential limits significant perturbations. DOI: 10.1644/09-MAMM-A-231.1.