筛选
科学数据
统计数据
共检索到376条 ,权限内显示50条;
Data from: Dunnock social status correlates with sperm speed, but fast sperm does not always equal high fitness
- 负责人：
- DOI：
- doi:10.5061/dryad.ncjsxksrh
- 摘要：
- of sperm quality, also influences the outcome of sperm competition because fast sperm cells may fertilize eggs before slow sperm cells. We evaluated whether
Data from: Sperm head abnormalities are more frequent in songbirds with more helical sperm: A possible trade-off in sperm evolution
- 负责人：
- St?stad, Hanna
- DOI：
- doi:10.5061/dryad.1mj39tf
- 摘要：
- Sperm morphology varies enormously across the animal kingdom. While knowledge of the factors that drive the evolution of interspe
Data from: Strategic adjustments in sperm production within and between two island populations of house mice
- 负责人：
- DOI：
- doi:10.5061/dryad.87pk2
- 摘要：
- Sperm production is physiologically costly. Consequently, males are expected to be prudent in their sperm production, and tailor their expe
Data from: Male body size and condition affects sperm number and production rates in mosquitofish, Gambusia holbrooki
- 负责人：
- DOI：
- doi:10.5061/dryad.sf651
- 摘要：
- Sperm number is an important predictor of paternity when there is sperm competition. Sperm number is often measured as maximum sperm reser
Data from: Sperm use economy of honeybee (Apis mellifera) queens
- 负责人：
- DOI：
- doi:10.5061/dryad.7nh16
- 摘要：
- . We examined sperm use in naturally mated queens of different ages and in queens artificially inseminated with different volumes of semen. We found that queens
Data from: Long sperm fertilize more eggs in a bird
- 负责人：
- DOI：
- doi:10.5061/dryad.dc335
- 摘要：
- Sperm competition, in which the ejaculates of multiple males compete to fertilize a female's ova, results in strong selection on sperm traits. Alt
Data from: Experimental evolution reveals that sperm competition intensity selects for longer, more costly sperm
- 负责人：
- 关键词：
- Mating Systems;reproductive strategies;sexual selection;Experimental evolution;Tribolium castaneum
- DOI：
- doi:10.5061/dryad.22rh6
- 摘要：
- It is the differences between sperm and eggs that fundamentally underpin the differences between the sexes within reproduction. For males
Data from: Sperm blocking is not a male adaptation to sperm competition in a parasitoid wasp
- 负责人：
- 关键词：
- sperm competition;polyandry;local mate competition;sex allocation;post-copulatory sexual selection
- DOI：
- doi:10.5061/dryad.23f0c
- 摘要：
- The extent to which sperm or ejaculate-derived products from different males interact during sperm competition – from kamikaze sperm to sperm
Data from: Sperm duct gland contents increase sperm velocity in the sand goby
- 负责人：
- DOI：
- doi:10.5061/dryad.pp68kp4
- 摘要：
- d a paired experimental design, with spermatozoa tested with and without sperm duct gland contents mixed into seawater. We measured sperm velocity, per
Data from: Convergent evolution of sperm gigantism and the developmental origins of sperm size variability in Caenorhabditis nematodes
- 负责人：
- DOI：
- doi:10.5061/dryad.7gv8h
- 摘要：
- Sperm cells provide essential, if usually diminutive, ingredients to successful sexual reproduction. Despite this conserved function
