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共检索到286条 ,权限内显示50条;
Data from: Bioerosion by pit-forming, temperate-reef sea urchins: history, rates and broader implications
- 负责人：
- DOI：
- doi:10.5061/dryad.ts608
- 摘要：
- ee sedimentary (two sandstones and one mudstone) and one metamorphic (granite). A year-long experiment showed urchins excavated depressions on sedimentary rocks
Data from: Seed polyphenols in a diverse tropical plant community
- 负责人：
- DOI：
- doi:10.5061/dryad.5r083
- 摘要：
- of the main seed polyphenol groups across 196 plant species on Barro Colorado Island (Panama) and community-level patterns in two aspects of thei
Effect of Improved Production Systems on Productivity of Local Chickens in Rural Areas of Babati District, Tanzania
- 负责人：
- Lukuyu, Ben;;International Livestock Research Institute (ILRI)
- 关键词：
- DOI：
- doi:10.7910/dvn/gxjibf
- 摘要：
- e supplemented with grains or their by-products. Given the low number of chickens, farmers do not find it economical to construct a separate house for thei
Data from: Trait integration and macroevolutionary patterns in the pollination biology of conifers
- 负责人：
- DOI：
- doi:10.5061/dryad.71dq2
- 摘要：
- of a liquid droplet that buoyant grains float through to enter the ovule. We use a well-sampled phylogeny of conifers to test correlated evolution among these
Data from: Mycorrhizal divergence and selection against immigrant seeds in forest and dune populations of the partially mycoheterotrophic Pyrola
- 负责人：
- DOI：
- doi:10.5061/dryad.3dc471f
- 摘要：
- . We conclude that selection against immigrants may constitute an important reproductive barrier at early stages of the speciation process.
Data from: Long term on-farm participatory maize breeding by stratified mass selection retains molecular diversity while improving
- 负责人：
- DOI：
- doi:10.5061/dryad.nb320
- 摘要：
- . With this objective, a long-term participatory breeding/on-farm conservation program was established in Portugal. In this program maize populations were subject
Data from: Modern pollen assemblages of the Neotropics
- 负责人：
- DOI：
- doi:10.5061/dryad.vmcvdncqd
- 摘要：
- d and a minimum of 300 terrestrial pollen grains counted and identified per sample. Bioclimatic data were assigned to each location, and sexual trai
Data from: Pollination efficiency and effectiveness of a male mining bee (Andrena)
- 负责人：
- DOI：
- doi:10.5061/dryad.nn703qp
- 摘要：
- bees foraged only for nectar. Female bees had large hairy hind tibiae with conspicuous scopae, and nearly 90% of the pollen grains they collected went
Data from: Climate change, transgenic corn adoption and field-evolved resistance in corn earworm
- 负责人：
- Venugopal, P. Dilip
- 关键词：
- climate change and phenology temperature anomaly transgenic crops crop-pest interactions insect resistance
- DOI：
- doi:10.5061/dryad.q9d78
- 摘要：
- Bacillus thuringiensis (Berliner) (Bt) to express insecticidal Cry proteins. Increasing temperatures profoundly affect insect life histories and agricultura
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：
- e varied over time in area and energy available for diversification. We show that, consistently across the four major terrestrial vertebrate groups, current
