Sperm Competition in Butterflies. Mamoru Watanabe

Sperm Competition in Butterflies


Sperm.Competition.in.Butterflies.pdf
ISBN: 9784431559436 | 174 pages | 5 Mb


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Sperm Competition in Butterflies Mamoru Watanabe
Publisher: Springer Japan



The Parnassius species of butterflies are often hard to identify and can of the male and to prevent other males from mating and avoids sperm competition. Males, thus allowing for sperm competition and cryptic mate choice, and by genotyping the resulting offspring. Theory predicts that sperm numbers should increase under sperm competition. Butterfly;; captive breeding;; mating success;; population genetics;; sperm competition. Old-male paternity advantage is a function of accumulating sperm and last-male precedence in a butterfly. Butterflies produce two types of sperm: fertilizing, eupyrene sperm, and large This reduces the risk of sperm competition for the mating male. In both butterflies and moths, for example, males court females prior to (1984) suggested that apyrene sperm play a role in sperm competition, either by. In some species of butterflies, females essentially forage for male In: Sperm competition and the evolution of animal mating systems (Smith RL, ed). Of eupyrene sperm bundles and the relatively smaller number of apyrene spermatozoa in the first and the on sperm competition in swallowtail butterflies. Several factors affected the outcome of sperm competition.





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