筛选
科学数据
统计数据
共检索到16条 ,权限内显示50条;
Data from: Sons do not take advantage of a head start: parity in herring gull offspring sex ratios despite greater initial investment in males
- 负责人：
- DOI：
- doi:10.5061/dryad.1s2p7
- 摘要：
- Skewed adult sex ratios sometimes occur in populations of free-living animals yet the proximate mechanisms, timing of sex-biases, and the selecti
Data from: Genetic background alters dominance relationships between mat alleles in the ciliate Tetrahymena thermophila
- 负责人：
- DOI：
- doi:10.5061/dryad.qv731
- 摘要：
- c sex determination in the ciliate Tetrahymena thermophila, which was previously shown to cause evolution of skewed sex ratios. We find that the geneti
Data from: Female density-dependent chemical warfare underlies fitness effects of group sex ratio in flour beetles
- 负责人：
- Agashe, Deepa
- 关键词：
- intrasexual competition interference competition quinones ethyl benzoquinone methyl benzoquinone
- DOI：
- doi:10.5061/dryad.p9v3q
- 摘要：
- In animals, skewed sex ratios can affect individual fitness either via sexual (e.g. intersexual conflict or intrasexual mate competiti
Data from: The male handicap: male-biased mortality explains skewed sex ratios in brown trout embryos
- 负责人：
- Garcia de Leaniz, Carlos
- DOI：
- doi:10.5061/dryad.3h45m
- 摘要：
- genetic marker for sexing the offspring of both pure and hybrid crosses. Sex ratios (SR = proportion of males) varied widely one month after hatching ranging from
Data from: Opposing effects of mortality factors on progeny operational sex ratio may thwart adaptive manipulation of primary sex ratio
- 负责人：
- DOI：
- doi:10.5061/dryad.4c058
- 摘要：
- , and parasitoids and examine how the combined effect of natural enemies shapes the realized operational sex ratio. Neodiprion abietis mortality during the cocoon
Data from: Reconstruction of paternal genotypes over multiple breeding seasons reveals male green turtles do not breed annually
- 负责人：
- Broderick, Annette C.
- DOI：
- doi:10.5061/dryad.7dk0m36r
- 摘要：
- For species of conservation concern, knowledge of key life-history and demographic components, such as the number and sex ratio of breeding adults
Data from: Sexual shape dimorphism and selection pressure on males in fossil ostracodes
- 负责人：
- 关键词：
- adult sex ratio;sexual shape dimorphism;selection pressure;Paleocene;Static allometry;Ostracoda
- DOI：
- doi:10.5061/dryad.14j2m
- 摘要：
- s on evolutionary timescales, even though the sex ratio of the population changed from female skewed to male skewed during the late Paleocene. The sexual shape dimorphism
Data from: Female-female competition leads to female-biased sex allocation and dimorphism in brood sex composition in a gall-forming aphid
- 负责人：
- Akimoto, Shinichi
- 关键词：
- fighting sex ratio Trivers–Willard hypothesis local mate competition local resource competition
- DOI：
- doi:10.5061/dryad.vk002fn
- 摘要：
- 1.Sex allocation in animals is predicted to be skewed from a 1:1 ratio if sons and daughters yield different marginal fitness returns per unit
Data from: Sex differences and allee effects shape the dynamics of sex-structured invasions
- 负责人：
- Shaw, Allison
- 关键词：
- integrodifference equations invasion speed mate-finding Allee effect mating functions sex-biased dispersal spatial spread
- DOI：
- doi:10.5061/dryad.39n4g
- 摘要：
- in life history or behaviour (skewed sex ratio, sex-biased dispersal, sex-specific mating behaviours) amplify these effects. In contrast, allowing individuals
Data from: The evolution of parental cooperation in birds
- 负责人：
- DOI：
- doi:10.5061/dryad.02jk0
- 摘要：
- analyses of parental care to date, here we show that parents cooperate more when sexual selection is not intense and the adult sex ratio of males to females
