Data from: Population structure over a broad spatial scale driven by non-anthropogenic factors in a wide-ranging migratory mammal, Alaskan caribou ...
Wide-ranging mammals face significant conservation threats, and knowledge of the spatial scale of population structure and its drivers is needed to understand processes that maintain diversity in these species. We analysed DNA from 655 Alaskan caribou (Rangifer tarandus granti) from 20 herds that va...
| Main Authors: | , , , , |
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| Format: | Dataset |
| Language: | English |
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Dryad
2014
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.5061/dryad.3hp5v https://datadryad.org/stash/dataset/doi:10.5061/dryad.3hp5v |
| Summary: | Wide-ranging mammals face significant conservation threats, and knowledge of the spatial scale of population structure and its drivers is needed to understand processes that maintain diversity in these species. We analysed DNA from 655 Alaskan caribou (Rangifer tarandus granti) from 20 herds that vary in population size, used 19 microsatellite loci to document genetic diversity and differentiation in Alaskan caribou, and examined the extent to which genetic differentiation was associated with hypothesized drivers of population subdivision including landscape features, population size and ecotype. We found that Alaskan caribou are subdivided into two hierarchically structured clusters: one group on the Alaska Peninsula containing discrete herds and one large group on the Mainland lacking differentiation between many herds. Population size, geographic distance, migratory ecotype and the Kvichak River at the nexus of the Alaska Peninsula were associated with genetic differentiation. Contrary to previous ... : caribou_Mager_et_al_MolEcol_DRYADData is a single Excel workbook with multiple worksheets. Sheet 1: msats_Alaskan_caribou Microsatellite genotypes at 19 loci for 655 caribou from 20 populations (herds). Microsatellite allele sizes are in base pairs. Missing data is indicated by '0'. Sheet 2: CBfactors_herdpairs_n>4 Pairwise data for genetic differentiation, geographic distance, harmonic mean population size, and landscape features. Includes 172 herd pairs representing all possible pairs of herds except Wolf Mountain (WOLF; n=4). Please read the Molecular Ecology manuscript by Mager et al., including the Supplementary Online Resources, for details on how these data were generated and how they were used in Mantel and Random Forests analyses. ... |
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