Sperm Competition and Sexual Selection

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Female remating, sperm competition and sexual selection in Drosophila.

Female remating is fundamental to evolutionary biology as it determines the pattern of sexual selection and sexual conflict. Remating in females is an important component of Drosophila mating systems because it affects sperm usage patterns and sexual selection. Remating is common in females of many species of Drosophila in both natural and laboratory populations. It has been reported in many in...

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Sperm competition games: sperm selection by females.

We analyse a co-evolutionary sexual conflict game, in which males compete for fertilizations (sperm competition) and females operate sperm selection against unfavourable ejaculates (cryptic female choice). For simplicity, each female mates with two males per reproductive event, and the competing ejaculates are of two types, favourable (having high viability or success) or unfavourable (where pr...

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Sexual Selection: Male-Male Competition

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Sexual Selection, Social Competition, and Evolution*

Social behavior holds a special position among natural phenomena in relation to the Darwinian theory of organic evolution. When individuals of the same species live in close proximity they compete directly for essential resources. And intraspecific reproductive competition is the cornerstone of the theory of evolution by natural selection. Thus the drama of what G. E. Hutchinson (1965) referred...

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ژورنال

عنوان ژورنال: Heredity

سال: 1999

ISSN: 0018-067X,1365-2540

DOI: 10.1038/sj.hdy.6885353