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Eurobarometer 77.2: Economic and Financial Crisis, Helplines for Social Services, Railway Competition, Food Production and Quali
- 负责人:
- 关键词:
- DOI:
- doi:10.3886/icpsr34578
- 摘要:
- , (2) railway competition, (3) food production and quality, and (4) cyber security. Questions in this survey address the respondent's usage, knowledge
Data from: Cross-decades stability of an avian hybrid zone
- 负责人:
- DOI:
- doi:10.5061/dryad.n2j6c20
- 摘要:
- Hybrid zones are particularly valuable for understanding the evolution of partial reproductive isolation between differentiated populati
Data from: Nomenclature for the nameless: a proposal for an integrative molecular taxonomy of cryptic diversity exempli
- 负责人:
- DOI:
- doi:10.5061/dryad.64pg3
- 摘要:
- units of evolution. In this context, morpho-taxonomy only provides an adequate level of resolution if reproductive isolation matches
Data from: Early plant recruitment stages set the template for the development of vegetation patterns along a hydrological gradient
- 负责人:
- DOI:
- doi:10.5061/dryad.mv13v
- 摘要:
- evolutionary adaptations that promote recruitment under favourable hydrological conditions for adult growth and reproduction. 5. Our results suggest that stro
Vietnam Longitudinal Survey, 1995-1998;;Archival Version
- 负责人:
- 关键词:
- DOI:
- doi:10.3886/icpsr33506
- 摘要:
- and amount of agricultural production. Individual-level variables measured traditional courtship and wedding customs, familial marriage negotiations, marital
Data from: A global test of the cold-climate hypothesis for the evolution of viviparity of squamate reptiles
- 负责人:
- DOI:
- doi:10.5061/dryad.tm06r
- 摘要:
- on embryo developmental time, developmental viability, and energy consumption of oviparous versus viviparous embryos. To examine the accuracy of our predicti
Data from: Post-zygotic selection against parental genotypes during larval development maintains all-hybrid populations of the frog Pelophylax
- 负责人:
- 关键词:
- Assortative mating Environmental conditions Food supply Fertility Genetic diversity Larval development Pre- and post-zygotic selection Survival
- DOI:
- doi:10.5061/dryad.6rg87
- 摘要:
- been established. Here, the hybrid has achieved reproductive independence from its sexual ancestors and forms a self-sustaining evolutionary unit. Based on the game
Berufsausbildung auf dem Land 1988;;Vocational Training in the Country 1988
- 负责人:
- Zentralinstitut Fuer Jugendforschung, Leipzig
- 关键词:
- KAT38 Occupation, Profession Lehre \/ Berufsausbildung Gemeinde, st?dtische und l?ndliche Wohnumwelt Jugend Vocational education Community, urban and rural life Youth
- DOI:
- doi:10.4232/1.6065
- 摘要:
- nge des 2. Ausbildungsjahres in der Pflanzen- und Tierproduktion;;Apprentices of the second year of training in plant and animal production.;;Repr?sentative
Data from: Selfish partners: resource partitioning in male coalitions of Asiatic lions
- 负责人:
- DOI:
- doi:10.5061/dryad.2cq2g
- 摘要:
- , increase in coalition-size and the appetite-states of the males. However, immediate subordinates in coalitions had higher reproductive fitness than single
Data from: Boechera, a model system for ecological genomics
- 负责人:
- DOI:
- doi:10.5061/dryad.5s3kt727
- 摘要:
- nes, near-isogenic lines, and positional cloning; 4) interspecific crosses permitting mapping for genetic analysis of speciation; 5) apomixis (asexual reproduction by seeds