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Data from: Variation in age ratio of midcontinent greater white-fronted geese during fall migration
负责人:
关键词:
productivity;Age Ratio;Staging Area;August-September 2011;August-September 2010;Mid-continent Greater White-fronted Goose;Anser albifrons frontalis
DOI:
doi:10.5061/dryad.28660
摘要:
Alaska at a northern autumn staging area near Delta Junction, Alaska. Photographic sampling conducted near Delta Junction resulted in an annual age ratio
Data from: Non-linear effect of sea ice: Spectacled Eider survival declines at both extremes of the ice spectrum
负责人:
关键词:
sea ice;survival;Somateria fischeri;mark-recapture;Spectacled Eider
DOI:
doi:10.5061/dryad.s1c5m5k
摘要:
in Alaska and Russia and winters in the Bering Sea, appears to be complex. While severe ice can impede foraging for benthic prey, ice also suppresses
Data from: Inferring the geographic origin of a range expansion: latitudinal and longitudinal coordinates inferred from genomic data in an ABC
负责人:
关键词:
Last Glacial Maximum;range expansion;ABC;niche modeling;?-statistics;expansion origin;Ochotona collaris
DOI:
doi:10.5061/dryad.4s1gg
摘要:
collected in the Collared pika that underwent post-glacial expansion across Alaska, as well as present an assessment of its accuracy under a known model of expansion
Data from: Coexistence and origin of trophic ecotypes of pygmy whitefish, Prosopium coulterii, in southwestern Alaskan lake
负责人:
关键词:
stable isotopes;Diet Analysis;Prosopium coulterii;phylogeography;Fish;Morphometrics;population genetics;Holocene
DOI:
doi:10.5061/dryad.7pd82
摘要:
, and genetic structure of three putative forms of the pygmy whitefish, Prosopium coulterii, that were first reported from Chignik Lake, southwestern Alaska, over 40 yea
Data from: Contemporary ancestor? Adaptive divergence from standing genetic variation in Pacific marine threespine stickleback
负责人:
关键词:
Evolutionary genomics;natural selection;population structure;Next-generation sequencing;adaptive radiation;Morphological Evolution;present;Holocene;Gasterosteus aculeatus
DOI:
doi:10.5061/dryad.450c2v7
摘要:
stickleback from eight locations extending from Alaska to California, and phenotyped them for platedness and body shape. Pairwise FST varied from 0.02 to 0.18
Data from: Sex-dependent phenological plasticity in an arctic hibernator
负责人:
关键词:
mammal;Ecology: thermal;Urocitellus Parryii;Ecology: physiological;Environmental variability;Ecology: behavioral
DOI:
doi:10.5061/dryad.47pf0
摘要:
seasonal dormancy in response to extreme weather events is unclear. Here, we show that arctic ground squirrels in northern Alaska exhibited sex-dependent
Data from: Alaskan brown bears (Ursus arctos) aggregate and display fidelity to foraging neighborhoods while preying on Pacific salmon al
负责人:
关键词:
Oncorhynchus nerka;sockeye salmon;Years;Ursus arctos;non-invasive population estimation;Genetic capture-mark-recapture;predation
DOI:
doi:10.5061/dryad.1h8sr94
摘要:
x spawning streams for sockeye salmon, O. nerka, in southwestern Alaska. The streams were grouped into two trios on opposite sides of Lake Al
Data from: Climatic thresholds shape northern high-latitude fire regimes and imply vulnerability to future climate change
负责人:
关键词:
tundra;1950-2009;2009-2100;Boreal forest
DOI:
doi:10.5061/dryad.r217r
摘要:
ndscape features (i.e. vegetation and topography) across Alaska. Boosted regression tree (BRT) models captured the spatial distribution of fire across boreal forest and tundra
Data from: Integrated population modeling provides the first empirical estimates of vital rates and abundance for polar bears in the Chukchi Sea
负责人:
关键词:
vital rates;polar bear;abundance;sea ice;capture-recapture;carnivore;movement;integrated population model;Ursus maritimus;climate change
DOI:
doi:10.5061/dryad.692jb15
摘要:
densities west of Alaska were 0.0030 bears/km2 (95% CRI = 0.0016–0.0060), similar to 1980s-era density estimates although methodological differences
Data from: Migration strategy affects avian influenza dynamics in mallards (Anas platyrhynchos)
负责人:
Hill, Nichola J.
关键词:
Behavior/Social Evolution Birds Disease Biology Species Interactions Molecular Evolution
DOI:
doi:10.5061/dryad.4tf74
摘要:
northern breeding grounds (Alaska and the NW Pacific Rim) into the wintering population, facilitating gene flow at continental scales, but circula

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