Correction: Implications of the circumpolar genetic structure of polar bears for their conservation in a rapidly warming Arctic
نویسندگان
چکیده
The following sentence was omitted and should have been included as the last sentence of the first paragraph in the Estimation of Gene Flow section of S1 Supporting Information: Because we wanted input dataset for the gene flow analyses of microsatellite data to 1) be comparable for both MIGRATE and BayesAss analyses; 2) avoid as much as possible the use of individuals with large amounts of missing data; and because 3) 15 individuals are recommended (for efficiency) for the MIGRATE analyses (P. Beerli and M. Kuhner, pers. comm. to SAS), and we wanted each area to be fairly equally represented, we randomly sampled individuals from strata (geographic areas) within each subpopulation, selecting from 26 (WP), 34 (EP) and 60 (CA and SC), depending on the number available for analysis. Please see the correct, complete S1 Supporting Information here.
منابع مشابه
Implications of the Circumpolar Genetic Structure of Polar Bears for Their Conservation in a Rapidly Warming Arctic
We provide an expansive analysis of polar bear (Ursus maritimus) circumpolar genetic variation during the last two decades of decline in their sea-ice habitat. We sought to evaluate whether their genetic diversity and structure have changed over this period of habitat decline, how their current genetic patterns compare with past patterns, and how genetic demography changed with ancient fluctuat...
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As global warming accelerates the melting of Arctic sea ice, polar bears (Ursus maritimus) must adapt to a rapidly changing landscape. This process will necessarily alter the species distribution together with population dynamics and structure. Detailed knowledge of these changes is crucial to delineating conservation priorities. Here, we sampled 361 polar bears from across the center of the Ca...
متن کاملCircumpolar Genetic Structure and Recent Gene Flow of Polar Bears: A Reanalysis
Recently, an extensive study of 2,748 polar bears (Ursus maritimus) from across their circumpolar range was published in PLOS ONE, which used microsatellites and mitochondrial haplotypes to apparently show altered population structure and a dramatic change in directional gene flow towards the Canadian Archipelago-an area believed to be a future refugium for polar bears as their southernmost hab...
متن کاملPossible Effects of Climate Warming on Selected Populations of Polar Bears (Ursus maritimus) in the Canadian Arctic
Polar bears depend on sea ice for survival. Climate warming in the Arctic has caused significant declines in total cover and thickness of sea ice in the polar basin and progressively earlier breakup in some areas. Inuit hunters in the areas of four polar bear populations in the eastern Canadian Arctic (including Western Hudson Bay) have reported seeing more bears near settlements during the ope...
متن کاملPopulation substructure and space use of Foxe Basin polar bears
Climate change has been identified as a major driver of habitat change, particularly for sea ice-dependent species such as the polar bear (Ursus maritimus). Population structure and space use of polar bears have been challenging to quantify because of their circumpolar distribution and tendency to range over large areas. Knowledge of movement patterns, home range, and habitat is needed for cons...
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عنوان ژورنال:
دوره 10 شماره
صفحات -
تاریخ انتشار 2015