筛选
科学数据
统计数据
共检索到74条 ,权限内显示50条;
Data from: Postcranial diversity and recent ecomorphic impoverishment of North American gray wolves
- 负责人:
- DOI:
- doi:10.5061/dryad.kj239
- 摘要:
- ibly in response to a new level or type of prey depletion. One of the consequences of recent extirpation of the Plains (C. l. nubilus) and Mexican wolves
Data from: Factors influencing detection of eDNA from a stream-dwelling amphibian
- 负责人:
- DOI:
- doi:10.5061/dryad.mt60p
- 摘要:
- e is known about how processes such as secretion rate, environmental degradation, and time since colonization or extirpation from a given site affect eDNA measurements. Usi
Data from: Defaunation increases the spatial clustering of lowland Western Amazonian tree communities
- 负责人:
- Bagchi, Robert
- 关键词:
- Determinants of plant community diversity and structure empty forest hunting Janzen-Connell hypothesis replicated spatial point patterns seed dispersal tropical forest plant-animal interactions density-dependence
- DOI:
- doi:10.5061/dryad.88bq8
- 摘要:
- might suffer increased distance- and density- dependent mortality. Consequently, extirpation of large vertebrates may alter the compositi
Data from: Comparative riverscape genetics reveals reservoirs of genetic diversity for conservation and restoration of Great Plains fishes.
- 负责人:
- DOI:
- doi:10.5061/dryad.v7d6t
- 摘要:
- ng rates of extirpation have outpaced losses of genetic diversity in this species. Within most basins, genetically diverse populations of each species
Data from: Populations at risk: conservation genetics of kangaroo mice (Microdipodops) of the Great Basin Desert
- 负责人:
- DOI:
- doi:10.5061/dryad.r531f
- 摘要:
- onmental pressures and hence may be at risk of extirpation. Results of this study indicate that each Microdipodops group should be recognized, and therefore managed
Data from: Multiple mechanisms confer stability to isolated populations of a rare endemic plant
- 负责人:
- 关键词:
- Yermo xanthocephalus
- DOI:
- doi:10.5061/dryad.3ps1513
- 摘要:
- probabilities of extirpation. We used a combination of long term census data and a five-year demographic study of a naturally rare, endemic plant, Yermo
Data from: Resource selection and landscape change reveal mechanisms suppressing population recovery for the world's most endangered antelope
- 负责人:
- Goheen, Jacob R.
- 关键词:
- endangered species habitat loss megaherbivore declines predation risk reintroduction tree encroachment elephant extinction refugee species
- DOI:
- doi:10.5061/dryad.p1v07
- 摘要:
- low numbers of hirola are due at least partly to habitat loss via tree encroachment, triggered by some combination of elephant extirpation, overgrazing
Data from: Ongoing changes in the avifauna of La Selva Biological Station, Costa Rica: twenty-three years of Christmas Bird Counts
- 负责人:
- DOI:
- doi:10.5061/dryad.65v10
- 摘要:
- population declines of tropical birds. In particular, the associations between population trends and body size implicate physiological mechanisms influencing
Data from: Effects of landscape configuration and composition on phylogenetic diversity of trees in a highly fragmented tropical forest
- 负责人:
- DOI:
- doi:10.5061/dryad.fq988
- 摘要:
- e higher in interiors than at edges. Synthesis. Changes in MPD and sesMNTD suggest that extirpation of species at edges or in highly fragmented landscapes
Data from: Age-specific infectious period shapes dynamics of pneumonia in bighorn sheep
- 负责人:
- Plowright, Raina K.
- 关键词:
- bighorn sheep disease dynamics feedback mechanism pathogen persistence persistent carriage pneumonia supershedder superspreader wildlife health
- DOI:
- doi:10.5061/dryad.s86sd
- 摘要:
- from recovery to catastrophic decline and extirpation.