筛选
科学数据
统计数据
共检索到153条 ,权限内显示50条;
Data from: Incubation time as an important influence on egg production and distribution into clutches for sauropod dinosaurs
- 负责人：
- DOI：
- doi:10.5061/dryad.6t450
- 摘要：
- Individual egg size and clutch size of the largest of the dinosaurs (the sauropods) are both smaller than might be expected for such large oviparous
Data from: Elevation and latitude interact to drive life-history variation in precocial birds: a comparative analysis using Galliformes
- 负责人：
- Balasubramaniam, Priya
- 关键词：
- Altitude Clutch size Egg mass Elevation Fecundity vs. offspring quality Life history tradeoff Phylogenetic comparative methods PGLS Precocial Interspecific variation
- DOI：
- doi:10.5061/dryad.38s8g
- 摘要：
- life-history strategies. Environmental variation across elevational gradients is hypothesized to select for a trade-off of reduced fecundity (lower clutch size and/or fewer
Data from: Small spermatophore size and reduced female fitness in an isolated butterfly population
- 负责人：
- DOI：
- doi:10.5061/dryad.7p42b
- 摘要：
- Islands (?L). Here, we analyze to what extent egg clutch size and egg-hatching rate are influenced by male population and spermatophore size. Spermatophore
Data from: Two eggs, two different constraints: a potential explanation for the puzzling intra-clutch egg size dimorphism in Eudyptes penguins
- 负责人：
- DOI：
- doi:10.5061/dryad.7nr70
- 摘要：
- two-egg clutch size of Eudyptes penguins has recently been proposed to be a unique example of a maladaptive phenotypic stability, while their egg mass
Data from: Maternal investment increases with altitude in a frog on the Tibetan plateau
- 负责人：
- DOI：
- doi:10.5061/dryad.6v0c1
- 摘要：
- ween female body size and altitude, resulting in the production of larger clutches at higher altitudes. We report a different tradeoff in the high-altitude
Data from: Causes of seasonal decline in reproduction of the cooperatively-breeding acorn woodpecker
- 负责人：
- Koenig, Walter D.
- DOI：
- doi:10.5061/dryad.232k9q5
- 摘要：
- Clutch size and reproductive success decline seasonally in a wide range of temperate avian taxa. Two competing hypotheses have been proposed
Data from: Multiple aspects of plasticity in clutch size vary among populations of a globally distributed songbird
- 负责人：
- 关键词：
- adaptation fecundity life history breeding phenology reaction norm trade-offs within-individual variance
- DOI：
- doi:10.5061/dryad.112cs
- 摘要：
- . 2. We amassed data on clutch size from marked females in eight populations of house sparrows (Passer domesticus) from North America and Europe. We exploited
Data from: Geographic variation of life-history traits in the sand lizard, Lacerta agilis: testing Darwin's fecundity-advantage hypothesis
- 负责人：
- 关键词：
- Life history evolution body size geographic variation fecundity-advantage hypothesis female reproductive output lizards offspring size sexual size dimorphism Winkler & Wallin model
- DOI：
- doi:10.5061/dryad.p1p29
- 摘要：
- of fecundity selection intensity (clutch size and the slope of the clutch size-female size relationship), and with two climatic variables throughout the species range
Data from: Do avian cooperative breeders live longer?
- 负责人：
- DOI：
- doi:10.5061/dryad.m01vj
- 摘要：
- is facilitated by high annual survival, which increases the local population and leads to a shortage of breeding opportunities. Clutch size in cooperative breeders
Data from: Juvenile plumage whiteness is associated with the evolution of clutch size in passerines
- 负责人：
- Morales, Judith
- 关键词：
- clutch size intra-brood conflict juvenile signals parent-offspring conflict plumage color predation risk
- DOI：
- doi:10.5061/dryad.s88fv55
- 摘要：
- y and positively associated with clutch size. This relationship was not due to the strong resemblance between offspring and adult plumage, which was controlled
