筛选
科学数据
统计数据
共检索到912条 ,权限内显示50条;
Data from: Differences in carbon stocks along an elevational gradient in tropical mountain forests of Colombia
- 负责人：
- DOI：
- doi:10.5061/dryad.2f70818
- 摘要：
- dress this hypothesis, we examined the carbon stored in these three components using data from 20 0.25-ha plots located along this elevational gradient. The mea
Data from: Axial growth gradients across the postprotaspid ontogeny of the Silurian trilobite Aulacopleura koninckii
- 负责人：
- DOI：
- doi:10.5061/dryad.6069g
- 摘要：
- Recent morphometric analysis revealed a juvenile (meraspid) axial growth gradient in the trunk of the ~429 Myr old trilobite Aulacopleura koninckii
Data from: Macroecology and macroevolution of the latitudinal diversity gradient in ants
- 负责人：
- 关键词：
- Formicidae
- DOI：
- doi:10.5061/dryad.g579t7k
- 摘要：
- The latitudinal diversity gradient—the tendency for more species to occur toward the equator—is the dominant pattern of life on Earth
Data from: Elevation and latitude interact to drive life-history variation in precocial birds: a comparative analysis using Galliformes
- 负责人：
- Balasubramaniam, Priya
- 关键词：
- Altitude Clutch size Egg mass Elevation Fecundity vs. offspring quality Life history tradeoff Phylogenetic comparative methods PGLS Precocial Interspecific variation
- DOI：
- doi:10.5061/dryad.38s8g
- 摘要：
- te and tropical elevational gradients, but we lack a consistent mechanism to explain why predation risk should vary in this manner. Al
Data from: A test of the hypothesis that correlational selection generates genetic correlations
- 负责人：
- DOI：
- doi:10.5061/dryad.rc071b2v
- 摘要：
- tic correlation. We test this hypothesis with a meta-analysis utilizing empirical estimates of correlational selection gradients and measures of the correlation bet
Data from: Gene swamping alters evolution during range expansions in the protist Tetrahymena thermophila
- 负责人：
- DOI：
- doi:10.5061/dryad.6wwpzgmtk
- 摘要：
- . The gene swamping hypothesis predicts that for populations expanding along an abiotic gradient, sex can hinder adaptation if asymmetric dispersal lead
Data from: The role of selection and historical factors in driving population differentiation along an elevational gradient in an island bird
- 负责人：
- DOI：
- doi:10.5061/dryad.50b93
- 摘要：
- gely exceeds FST at several morphological traits, which is consistent with a role for local adaptation in driving morphological divergence along the gradient
Data from: Global gradients in vertebrate diversity predicted by historical area-productivity dynamics and contemporary environment
- 负责人：
- 关键词：
- species richness;Vertebrata;biodiversity;Mammalia;Mammals;Amphibia;Birds;Aves;vertebrates;Amphibians
- DOI：
- doi:10.5061/dryad.45672js4
- 摘要：
- of diversity gradients. We develop and apply a hierarchical analysis framework for global diversity gradients that incorporates an explicit accounting of pas
Data from: Quantifying the effects of ecological constraints on trait expression using novel trait-gradient analysis parameters
- 负责人：
- DOI：
- doi:10.5061/dryad.23fg0
- 摘要：
- nge of functional traits). 2. Here we propose a set of novel parameters to quantify this constraint by extending the trait-gradient analysis (TGA) methodology
Data from: With Ellenberg indicator values towards the north: does the indicative power decrease with distance from Central Europe?
- 负责人：
- DOI：
- doi:10.5061/dryad.43jj2gb
- 摘要：
- ween the incidence probability and the environmental variables to analyze if the widths of species niches change along the geographic gradient. Results: Our study sh
