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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: 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 competition and coevolution with female traits can drive spectacular morphological change in these cells. Here, we characterize four repeated instances
Data from: No association between sperm competition and sperm length variation across dung flies (Scathophagidae)
- 负责人:
- DOI:
- doi:10.5061/dryad.8dc30
- 摘要:
- in female reproductive tract morphology across dung flies. We used two measures of variation in sperm size, and testis size was employed as our index of sperm competition risk
Data from: Unravelling anisogamy: egg size and ejaculate size mediate selection on morphology in free-swimming sperm
- 负责人:
- 关键词:
- egg size;anisogamy;sperm morphology;sexual coevolution;external fertilisation;selection analysis
- DOI:
- doi:10.5061/dryad.2bj8g
- 摘要:
- tilization, by comparing relationships between sperm morphology and male fertility across manipulations of egg size and sperm density. Our results suggest tha
Data from: Parasitic mites influence intra- and interpopulational variation in sperm length in a simultaneous hermaphrodite land snail (Gastropoda
- 负责人:
- DOI:
- doi:10.5061/dryad.q6686
- 摘要:
- Sperm morphology can be highly variable among species, but less is known about patterns of population differentiation within species
Data from: Breeding system, shell size and age at sexual maturity affect sperm length in stylommatophoran gastropods
- 负责人:
- DOI:
- doi:10.5061/dryad.sg02c
- 摘要:
- . In hermaphrodites, self-fertilizing species are expected to have shorter sperm than cross-fertilizing species, which use sperm stored from several mating partner
Data from: Experimentally evolved and phenotypically plastic responses to enforced monogamy in a hermaphroditic flatworm
- 负责人:
- Janicke, Tim
- 关键词:
- Experimental evolution male genitalia mating behaviour Phenotypic plasticity sex allocation sexual selection sperm competition sperm morphology
- DOI:
- doi:10.5061/dryad.7cr21
- 摘要:
- of reproductive traits (including testis area, sex allocation, genital morphology, sperm morphology and mating behaviour) in the outcrossing hermaphroditic flatworm
Data from: Acclimation temperature changes spermatozoa flagella length relative to head size in brown trout
- 负责人:
- DOI:
- doi:10.5061/dryad.10t7hd0
- 摘要:
- e, we addressed the question whether temperature affects the morphology of brown trout, Salmo trutta L. spermatozoa. The fertilising ability of spermatozoa
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 mechanics of processing sperm in this species, which are likely shaped by selection on female reproductive morphology for adaptive sex allocation.
Data from: Moderate heritability and low evolvability of sperm morphology in a species with high risk of sperm competition, the collared flycatcher
- 负责人:
- Krist, Milo?
- DOI:
- doi:10.5061/dryad.nn75v55
- 摘要:
- on laboratory populations of several insect, mammal and avian species, heritabilities of sperm morphology were higher while evolvabilities were similar. Explanations