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7 – Mating Conflicts and Sperm Competition in Simultaneous Hermaphrodites
This chapter speculates on the consequences of sexual selection and sperm competition in a hermaphroditic mating system. Quantitative data related here, such as mating frequency, sperm transfer,Expand
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A simple method for the calculation of microsatellite genotype distances irrespective of ploidy level
Microsatellites are powerful molecular markers, used commonly to estimate intraspecific genetic distances. With the exception of band sharing similarity index, available distance measures wereExpand
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Sex role preferences, gender conflict and sperm trading in simultaneous hermaphrodites: a new framework
A key issue in the study of the behaviour of copulating simultaneous hermaphrodites concerns the decision about which sexual role to adopt in a mating encounter. If two mates share a preference toExpand
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Sperm Digestion and Reciprocal Sperm Transfer Can Drive Hermaphrodite Sex Allocation to Equality
The intensity of sperm competition determines how much reproductive effort should be invested in sperm. One important factor affecting sperm competition in internally fertilizing organisms is theExpand
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Low potential for sexual selection in simultaneously hermaphroditic animals
Hermaphroditic animals are poorly represented in the sexual selection literature. This deficiency may reflect our inability to come to grips with hermaphroditism or, alternatively, it could be due toExpand
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Functions, diversity, and evolution of traumatic mating
Copulation can involve the wounding of the mating partner by specialised devices. This type of mating, which we term traumatic mating, has been regarded as exceptional. Its prevalence, however, hasExpand
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Red fluorescence in reef fish: A novel signalling mechanism?
BackgroundAt depths below 10 m, reefs are dominated by blue-green light because seawater selectively absorbs the longer, 'red' wavelengths beyond 600 nm from the downwelling sunlight. Consequently,Expand
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Precopulatory mate assessment in relation to body size in the earthworm Lumbricus terrestris: Avoidance of dangerous liaisons?
In the earthworm Lumbricus terrestris L., mating occurs on the soil surface, but partners remain anchored in their burrow and mating is preceded by repeated mutual burrow visits between neighbors.Expand
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Multiple reciprocal adaptations and rapid genetic change upon experimental coevolution of an animal host and its microbial parasite
The coevolution between hosts and parasites is predicted to have complex evolutionary consequences for both antagonists, often within short time periods. To date, conclusive experimental support forExpand
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Trade‐off between male and female allocation in the simultaneously hermaphroditic flatworm Macrostomum sp.
Sex allocation theory for simultaneous hermaphrodites assumes a direct trade‐off between the allocation of resources to the male and female reproductive functions. Empirical support for this basicExpand
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