筛选
科学数据
统计数据
共检索到132条 ,权限内显示50条;
Data from: Molecular phylogeny and SNP variation of polar bears (Ursus maritimus), brown bears (U. arctos) and black bears (U. americanus) derived
- 负责人：
- DOI：
- doi:10.5061/dryad.1qp80
- 摘要：
- We assessed the relationships of polar bears (Ursus maritimus), brown bears (U. arctos), and black bears (U. americanus) with high throughput
Data from: Increased land use by Chukchi Sea polar bears in relation to changing sea ice conditions
- 负责人：
- 关键词：
- climate change;habitat use;Sea ice loss;polar bear;Denning;Terrestrial Habitats;Ursus maritimus
- DOI：
- doi:10.5061/dryad.n5509
- 摘要：
- Recent observations suggest that polar bears (Ursus maritimus) are increasingly using land habitats in some parts of their range, where they hav
Data from: Polarity of concavo-convex intervertebral joints in the necks and tails of sauropod dinosaurs
- 负责人：
- DOI：
- doi:10.5061/dryad.1p0q9
- 摘要：
- e directed toward the body. This “sauropod-type” polarity is hypothesized to be (1) more resistant to fracturing of the cotylar rim and (2) better stabilized
Data from: Projected polar bear sea ice habitat in the Canadian Arctic Archipelago
- 负责人：
- 关键词：
- 2006-2100
- DOI：
- doi:10.5061/dryad.g6q07
- 摘要：
- Background: Sea ice across the Arctic is declining and altering physical characteristics of marine ecosystems. Polar bears (Ursus maritimus) hav
Data from: Implications of the circumpolar genetic structure of polar bears for their conservation in a rapidly warming Arctic
- 负责人：
- DOI：
- doi:10.5061/dryad.v2j1r
- 摘要：
- We provide an expansive analysis of polar bear (Ursus maritimus) circumpolar genetic variation during the last two decades of decline in their sea
Data from: Internet blogs, polar bears, and climate-change denial by proxy
- 负责人：
- 关键词：
- DOI：
- doi:10.5061/dryad.v652r
- 摘要：
- y contributed to this consensus gap by fomenting misunderstandings of AGW causes and consequences. Polar bears (Ursus maritimus) have become a “poster species
Data from: Heritability of body size in the polar bears of Western Hudson Bay
- 负责人：
- Malenfant, René
- 关键词：
- Quantitative Genetics Mammals animal model GWAS single-nucleotide polymorphism Infinium BeadChip
- DOI：
- doi:10.5061/dryad.23d8v
- 摘要：
- Among polar bears (Ursus maritimus), fitness is dependent on body size through males' abilities to win mates, females' abilities to provide for thei
Griffith Park Zoo animals beat the heat, 1959
- 负责人：
- 关键词：
- DOI：
- doi:10.25549/examiner-m23604
- 摘要：
- 40 images. Griffith Park Zoo animals beat the heat, 14 July 1959. Polar bear; Coyper (beaver-like animal); Tapir; Alligator; Tiger and Mate; Mouflon
Data from: Seasonal shifts in feeding patterns: individual and population realized specialization in a high Arctic fish
- 负责人：
- DOI：
- doi:10.5061/dryad.6472vq6
- 摘要：
- Species with a broad and flexible diet may be at an advantage in a rapidly changing environment such as in today’s Arctic ecosystems. Polar
Data from: Genetic relationships of extant brown bears (Ursus arctos) and polar bears (Ursus maritimus)
- 负责人：
- DOI：
- doi:10.5061/dryad.q30rt
- 摘要：
- Polar bears (Ursus maritimus) and brown bears (Ursus arctos) are closely related species for which extensive mitochondrial and nuclear phylogenetic
