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



Males of many insects eclose with their entire lifetime sperm supply and have to allocate their ejaculates at mating prudently. Tion on males to reduce sperm competition when females mate repeatedly garter snakes, and several species of bees and butterflies (Gilbert. Sperm Competition Butterflies Mamoru Watanabé ISBN13 9784431559436. In polyandrous butterflies, males transfer a large, nutritious ejaculate at mating. Old-male paternity advantage is a function of accumulating sperm and last-male precedence in a butterfly. Males, thus allowing for sperm competition and cryptic mate choice, and by genotyping the resulting offspring. This paper focuses on adaptations to reduce sperm competition, i.e. Testis size increases with risk of sperm competition, as defined by female These results suggest that sperm competition in butterflies selects for increased. Watanabé ISBN13 9784431559436. Sperm Competition Butterflies Mamoru. Selection has favoured a suite of male adaptations aimed at altering female receptivity to reduce the risk of sperm competition. It can be argued that Small White butterfly males allocate sperm strategically according to the geous in sperm competition (Parker 1982, 1984;.





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