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共检索到311条 ,权限内显示50条;
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Data from: Budget constraints affect male rats’ choices between differently priced commodities
- 负责人:
- 关键词:
- DOI:
- doi:10.5061/dryad.3mb30
- 摘要:
- Demand theory can be applied to analyse how a human or animal consumer changes her selection of commodities within a certain budget in response
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Hummingbirds budget energy flexibly in response to changing resources
- 负责人:
- DOI:
- doi:10.5061/dryad.r18r8p1
- 摘要:
- endotherms because they have high mass-specific metabolic rates and store little fat. 3. We determined which aspects of the hummingbird daily energy budget
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: The financial needs vs. the realities of in situ conservation: an analysis of federal funding for protected areas in Brazil’s Caatinga
- 负责人:
- DOI:
- doi:10.5061/dryad.v74t1
- 摘要:
- managing PAs, we analyzed the Brazilian Government's budget allocated to 20 federal PAs in the Caatinga between 2008 and 2014, which ranged from 231,575 USD
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Haushaltsrechnungen im 19. und 20. Jahrhundert;;Budget accounts of private households in 19th and 20th century
- 负责人:
- DOI:
- doi:10.4232/1.8173
- 摘要:
- of the budget accounts of private households - Survey year of the budget book- Currency- Residence of the household- Survey type of the budget accounts; interview
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Data from: Fog as a source of nitrogen for redwood trees: evidence from fluxes and stable isotopes
- 负责人:
- DOI:
- doi:10.5061/dryad.0j2q8
- 摘要:
- of photosynthesis and nitrogen uptake by trees. Throughfall nitrogen fluxes were greater at the forest edge compared to the interior both within the canopy (sampled
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Data from: Woodstoich III: integrating tools of nutritional geometry and ecological stoichiometry to advance nutrient budgeting and the prediction
- 负责人:
- DOI:
- doi:10.5061/dryad.gf036
- 摘要:
- nutrient recycling (CNR) of ES as a useful tool bridging organism and ecosystem scales. We applied response surface plots to element budget data from an ES study to sh
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Work Diary Investigation
- 负责人:
- Forschungsgesellschaft Fuer Agrarpolitik Und Agrarsoziologie, Bonn Bundesforschungsanstalt Fuer Hauswirtschaft
- DOI:
- doi:10.4232/1.0089
- 摘要:
- of the time budget for the time interval of a year in form of duration and type of activities conducted. In recording a matrix form was used so that the sequence
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Data from: Taxa, petitioning agency, and lawsuits affect time spent awaiting listing under the US Endangered Species Act
- 负责人:
- DOI:
- doi:10.5061/dryad.43q6b
- 摘要:
- st be listed as threatened or endangered before receiving protection under the Act. We used an information theoretic approach to assess whether listing budget
![](http://agri.nais.net.cn/resources/front/images/source_91.jpg)
Data from: Ecological causes of multi-level covariance between size and first-year survival in a wild bird population
- 负责人:
- 关键词:
- ecological causes of selection fledging mass great tit multi-level selection recruitment local survival
- DOI:
- doi:10.5061/dryad.dd815
- 摘要:
- of fledging mass on first-year survival decline three-fold from year- to brood- to individual-level, so that estimates of selection depend strongly on the level
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Data from: Two sources of bias explain errors in facial age estimation
- 负责人:
- DOI:
- doi:10.5061/dryad.82fm72s
- 摘要:
- Accurate age estimates underpin our everyday social interactions, the provision of age-restricted services and police investigations. Previous