筛选
科学数据
统计数据
共检索到11条 ,权限内显示50条;
Data from: Exaggerated sexual swellings and male mate choice in primates: testing the reliable indicator hypothesis in the Amboseli baboons
- 负责人:
- DOI:
- doi:10.5061/dryad.6t0m6
- 摘要:
- splayed by females of many Old World primate species. The reliable indicator hypothesis posits that females use the exaggerated swellings to compete for acces
Data from: No mutual mate choice for quality in zebra finches: time to question a widely-held assumption
- 负责人:
- DOI:
- doi:10.5061/dryad.85950
- 摘要:
- Studies of mate choice typically assume that individuals prefer high quality mates and select them based on condition-dependent indicator traits
Data from: A positively selected APOBEC3H haplotype is associated with natural resistance to HIV-1 infection
- 负责人:
- DOI:
- doi:10.5061/dryad.n3373
- 摘要:
- pulations. Haplotype analysis and the derived intra-allelic nucleotide diversity test indicated that positive selection has driven the increase in frequency of one haplotype (Hap
Data from: Soil aggregate stability and grassland productivity associations in a northern mixed-grass prairie
- 负责人:
- DOI:
- doi:10.5061/dryad.kc811
- 摘要:
- rall, regression slope coefficients were consistently negative thereby indicating the general absence of a positive association between measures
Data from: Moderation is best: effects of grazing intensity on plant-flower visitor networks in Mediterranean communities
- 负责人:
- 关键词:
- DOI:
- doi:10.5061/dryad.p3c75
- 摘要:
- The structure of pollination networks is an important indicator of ecosystem stability and functioning. Livestock grazing is a frequent land use
Data from: Early warning signals of extinction in deteriorating environments
- 负责人:
- DOI:
- doi:10.5061/dryad.q3p64
- 摘要:
- e laboratory populations of Daphnia magna to test this hypothesis. We show that populations crossing a transcritical bifurcation, experimentally induced by the controlled
Data from: Subordinate plants sustain the complexity and stability of soil micro-food webs in natural bamboo forest ecosystems
- 负责人:
- DOI:
- doi:10.5061/dryad.5gf59
- 摘要:
- in subtropical forest ecosystems remains unclear. An experiment was conducted in a subtropical forest to test the hypothesis that removal of shrubs or subordinate arbour tree species
Data from: Molecular phylogeny and timing of diversification in Alpine Rhithrogena (Ephemeroptera: Heptageniidae)
- 负责人:
- DOI:
- doi:10.5061/dryad.q0j90
- 摘要:
- and river communities and are routinely used as bio-indicators of water quality. Rhithrogena is well diversified in the European Alps, with a numb
Data from: Lower elevation animal species do not tend to be better competitors than their upper elevation relatives
- 负责人:
- DOI:
- doi:10.5061/dryad.tk63005
- 摘要:
- stributions. Results: I found that (1) interspecific aggression appears to be a reliable indicator of interspecific competition; (2) elevational posi
Wahlstudie 1957;;Election Study 1957
- 负责人:
- Institut Fuer Demoskopie, Allensbach
- 关键词:
- KAT15 Political Attitudes and Behavior Freizeit, Tourismus und Sport Soziale Lage und Indikatoren Soziales Verhalten und soziale Einstellungen Massenmedien Politische Verhaltensweisen und Einstellungen \/ Meinungen Regierung, politische Systeme, Parteien und Verb?nde Wahlen Soziale Schichtung und Gruppierungen Wirtschaftspolitik
- DOI:
- doi:10.4232/1.11991
- 摘要:
- rs (split); attitude towards Russia overcoming America concerning rockets; assumption about a greater progress in a democracy or a dictatorship; Russia