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Data from: The Azores Bullfinch (Pyrrhula murina) has the same unusual and size-variable sperm morphology as the Eurasian Bullfinch (Pyrrhula
- 负责人:
- DOI:
- doi:10.5061/dryad.6sf11
- 摘要:
- ow that the spermatozoa of the two species have similar ultrastructure and gross morphology. Thus, the unusual and supposedly neotenous sperm morphology pr
Data from: Measuring sperm swimming performance in birds: effects of dilution, suspension medium, mechanical agitation, and sperm number
- 负责人:
- DOI:
- doi:10.5061/dryad.662kb6m
- 摘要:
- Sperm swimming performance, including swimming speed and the proportion of motile cells, may strongly affect fertilization success. However, littl
Data from: Early diversification of sperm size in the evolutionary history of the old world leaf warblers (Phylloscopidae)
- 负责人:
- DOI:
- doi:10.5061/dryad.rj25q
- 摘要:
- e is known about the evolutionary dynamics of sperm morphology, and whether rates of evolutionary change are variable over time and among taxonomic groups. Here, we examine sperm
Data from: Tactic-specific differences in seminal fluid influence sperm performance
- 负责人:
- 关键词:
- DOI:
- doi:10.5061/dryad.1pb77
- 摘要:
- r own seminal fluid only, sperm of sneakers increased their velocity and fertilization rate in presence of territorial males’ seminal fluid. In contrast, sneaker
Data from: A competitive environment influences sperm production, but not testes tissue composition, in house mice
- 负责人:
- DOI:
- doi:10.5061/dryad.tg386p7
- 摘要:
- g to current social conditions. Strategic adjustments in sperm expenditure during development can be made via changes in testes size, sperm production rates
Data from: Intra-ejaculate sperm selection in female zebra finches
- 负责人:
- 关键词:
- sperm swimming velocity;fertilisation;Taeniopygia guttata;sperm subpopulations;sperm morphology
- DOI:
- doi:10.5061/dryad.vc7ss
- 摘要:
- Among internal fertilizers, typically fewer than 1% sperm survive the journey through the oviduct. Several studies suggest that the sperm reaching
Data from: Sperm morphology, sperm motility and paternity success in the bluethroat (Luscinia svecica)
- 负责人:
- 关键词:
- Luscinia svecica
- DOI:
- doi:10.5061/dryad.6nv688k
- 摘要:
- ), predicting that sperm length and sperm swimming speed is positively correlated with paternity success. In total, 25 % (15/61) of broods contained extra-pair
Data from: A sex-linked supergene controls sperm morphology and swimming speed in a songbird
- 负责人:
- DOI:
- doi:10.5061/dryad.p4238
- 摘要:
- Sperm are perhaps the most diverse cells in the animal kingdom, with enormous morphological variation between taxa, between species, between males
Data from: The bold and the sperm: positive association between boldness and sperm number in the guppy
- 负责人:
- Gasparini, Clelia
- DOI:
- doi:10.5061/dryad.62f422p
- 摘要:
- association between boldness and sperm number but not sperm velocity, suggesting that bolder males have increased post-copulatory success than shyer individuals
Data from: A study of the transit amplification divisions during spermatogenesis in Oncopeltus fasciatus to assess plasticity in sperm number
- 负责人:
- DOI:
- doi:10.5061/dryad.q57n9h7
- 摘要:
- males maintained late-life fertility. We tested the hypothesis that older milkweed-fed males maintained fertility by producing more, higher quality sperm