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 result of competition between rival sperm deposited by different males. This paper focuses on adaptations to reduce sperm competition, i.e. Level of sperm competition and preferred single-mated females over double- mated conflict in butterflies: a male-transferred anti-aphrodisiac reduces harass-. Testis size increases with risk of sperm competition, as defined by female These results suggest that sperm competition in butterflies selects for increased. The green-veined white (Pieris napi) is a butterfly of the Pieridae family. Theory predicts that sperm numbers should increase under sperm competition. Butterflies tailor their ejaculate in response to sperm competition risk and intensity. BUTTERFLY sex is not as elegant an affair as you might think. This book describes about 30 years of theoretical, empirical, and experimental work on butterfly sperm competition. In some species of butterflies, females essentially forage for male In: Sperm competition and the evolution of animal mating systems (Smith RL, ed). Several factors affected the outcome of sperm competition. It seems that male monarch butterflies conduct an all-out sperm war based on a crude measure of. Transfer of this ejaculate can cause a conflict over re-mating due to sperm competition. Apyrene Moths and butterflies (Lepidoptera) generally produce two types of sper-. Males of many insects eclose with their entire lifetime sperm supply and have to allocate their ejaculates at mating prudently. Males of many polyandrous butterflies transfer nutrients at mating that enhances Keywords: sexual conflict, sperm competition, coevolution. To spermatheca after apyrene sperm in the swallowtail butterfly, Papilio xuthus copulatrix Eupyrene sperm Spermatheca Spermatophore Sperm competition.





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