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共检索到429条 ,权限内显示50条;
Data from: Relating national levels of crop damage to population size indices of large grazing birds: implications for management
- 负责人：
- Montras Janer, Teresa
- 关键词：
- Agriculture Crop protection Human-wildlife conflicts INLA Large grazing birds Population trends Wildlife management
- DOI：
- doi:10.5061/dryad.6b2c0n3
- 摘要：
- 1. Populations of large grazing birds have increased in Europe during at least five decades, raising conflicts between conservation and farming int
Data from: Gene flow and population structure of a common agricultural wild species (Microtus agrestis) under different land management regimes
- 负责人：
- DOI：
- doi:10.5061/dryad.3fs0q
- 摘要：
- The impact of landscape structure and land management on dispersal of populations of wild species inhabiting the agricultural la
Data from: Transcriptome analysis reveals nutrition? and age?related patterns of gene expression in the fat body of pre?overwintering bumble bee
- 负责人：
- DOI：
- doi:10.5061/dryad.4bk8312
- 摘要：
- s (up to 3 days). In addition to these molecular correlates of diet and age, we also found a putative molecular signature of diapause entry or preparation in adult
RIAS and Other Broadcasting Stations (January 1961);;RIAS and Other Broadcasting Stations (January 1961)
- 负责人：
- DIVO, Frankfurt
- DOI：
- doi:10.4232/1.3330
- 摘要：
- for the farming program.Demography:occupation;age;education;state;sex.Also encoded was:place of interview.;;Mündliche Befragung mit standardisiertem Frageboge
Data from: Fine-scale population genetic structure of sugar kelp, Saccharina latissima (Laminariales, Phaeophyceae), in eastern Maine, USA
- 负责人：
- DOI：
- doi:10.5061/dryad.sp640
- 摘要：
- . These differences highlight that sugar kelp populations are finely structured across small spatial scales, and that future management and farming efforts
Oxen treading wheat, , Punjab, Pakistan, ca.1890
- 负责人：
- 关键词：
- farming agriculture Ox teams Wheat
- DOI：
- doi:10.25549/impa-c123-78896
- 摘要：
- of images showing scenes of farming life in the Punjab. ? The Church of Scotland first established a mission in Sialkot in 1857 with the arrival
Crop harvest, Chogoria, Kenya, ca.1930
- 负责人：
- DOI：
- doi:10.25549/impa-c123-80618
- 摘要：
- Exterior view of several indigenous people, with large bunches of bananas, waiting outside a storage building which has a hook weighing scale
Data from: Surface and subsurface phosphorus discharge from a clay soil in a 9-year study comparing no-till and plowing
- 负责人：
- Uusitalo, Risto
- DOI：
- doi:10.5061/dryad.5bd4fs3
- 摘要：
- dissolved reactive P (DRP) concentrations in runoff water. In a 9-year field study on a clay soil in SW Finland, the effects of no-till and autumn plowing
Data from: Direct measurement of ant predation of weed seeds in wheat cropping
- 负责人：
- Evans, Theodore A.
- 关键词：
- tillage ants agro-ecology biocontrol ecosystem services Formicidae Salsola seed predation weeds
- DOI：
- doi:10.5061/dryad.3s40t
- 摘要：
- wheat with conservation tillage, used an insecticide to remove soil invertebrates (ants had been reduced by 85% relative to water controls) and shallow
Drawing by Edward Vischer depicting a view of the Tamalpais Range as seen from the San Rafael Valley looking north, ca.1860
- 负责人：
- DOI：
- doi:10.25549/chs-m7427
- 摘要：
- back. Text written-in below the image identifies the area and also reads, "Primitive farming scene" as well as "Rancho de la Provida, Martin County.".
