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共检索到579条 ,权限内显示50条;
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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:
- to conserve hirola are hindered by a lack of understanding as to why population density remains low, despite eradication of the viral disease, rinderpest
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Declines in low-elevation subalpine tree populations outpace growth in high-elevation populations with warming
- 负责人:
- DOI:
- doi:10.5061/dryad.q1f65
- 摘要:
- and no additional moisture, population dynamics in high-elevation forests led to transient range contractions for limber pine and potentially permanent
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Definition and estimation of vital rates from repeated censuses: choices, comparisons and bias corrections focusing on trees
- 负责人:
- 关键词:
- DOI:
- doi:10.5061/dryad.0722b
- 摘要:
- 1.Mortality and recruitment rates are fundamental measures of population dynamics. Ecologists and others have defined and estimated these vital rates
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Individual size variation reduces spatial variation in abundance of tree community assemblage, not of tree populations
- 负责人:
- DOI:
- doi:10.5061/dryad.87n81
- 摘要:
- t individual size variation reduced the spatial variation of community assemblage abundance, but not of taxon-specific population abundance. The different respo
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Data from: Forest cover mediates genetic connectivity of northwestern cougars
- 负责人:
- DOI:
- doi:10.5061/dryad.3bn62
- 摘要:
- to estimate the landscape resistance between pairs of individuals based on rescaled GIS layers for forest canopy cover, elevation, human population density
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Population clustering and clonal structure evidence the relict state of Ulmus minor Mill. in the Balearic Islands
- 负责人:
- DOI:
- doi:10.5061/dryad.bq4p7
- 摘要:
- Field elm (Ulmus minor) is a riparian tree that grows in rare, small populations scattered along temporary watercourses in the Balearic Isla
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Within- and among-population impact of genetic erosion on adult fitness-related traits in the European tree frog Hyla arborea
- 负责人:
- DOI:
- doi:10.5061/dryad.p0d83
- 摘要:
- t is, chorus attendance) and females (that is, clutch mass and egg size) in both small fragmented and large non-fragmented populations of European tree
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Variation in population structure and dynamics of montane forest tree species in Ethiopia guide priorities for conservation and research
- 负责人:
- DOI:
- doi:10.5061/dryad.832rg
- 摘要:
- ecology of major tree species. We investigated population structure and inferred population dynamics from size frequency distributions of 22 forest tree species
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Long-distance pollen and seed dispersal and inbreeding depression in Hymenaea stigonocarpa (Fabaceae: Caesalpinioideae
- 负责人:
- 关键词:
- DOI:
- doi:10.5061/dryad.6cs91k3
- 摘要:
- ng system, with population and individual variations in the outcrossing rate (0.53–1.0). The studied populations were not genetically isolated due to pollen and seed flow bet
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Quantifying in situ phenotypic variability in the hydraulic properties of four tree species across their distribution range in Europe
- 负责人:
- DOI:
- doi:10.5061/dryad.b2pg468
- 摘要:
- , hydraulic conductivity and branch growth, in four tree species, two angiosperms (Betula pendula, Populus tremula) and two conifers (Picea abies, Pinus sylvestris), ac