There are two terms frequently cited in the literature, which are involved in the sperm competition process; these are sperm precedence and sperm displacement or sperm predominance. Chapman, T. Replenishment of the secretions is important because multiple matings in rapid succession deplete the accessory gland contents, resulting in impaired fertility Lefevre and Jonsson, Elevated frequency of abnormalities in barn swallows from Chernobyl.
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There are several potential mechanisms for sperm precedence. Among animals there is considerable variation in the extent to which females remate Halliday and Arnold, Seminal fluid proteins are highly variable and are involved in a male-female co-evolutionary arms race Civetta and Singh, Remating effects on the genetic structure of female life histories in populations of Drosophila mojavensis.
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Heredity 68 : Anders P. Evolution 32 :
Ejaculate-derived nutritional contribution and female reproductive success in Drosophila mojavensis Patterson and Low. Also copulation may function as a payment for gaining access to some male-controlled resource. Polak et al. Mating frequency and fecundity in insects. However, other studies suggest that females readily remate before sperm stores are depleted Gromko et al. Watch next carmelita fox hentai