Sperm Competition in Butterflies pdf download

Sperm Competition in Butterflies Mamoru Watanabe
Publisher: Springer Japan

An interesting behavioral characteristic of small apollo butterflies prevents sperm competition among potential male mates. Males, thus allowing for sperm competition and cryptic mate choice, and by genotyping the resulting offspring. 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. (2005) Sperm competition in butterflies and moths. Old-male paternity advantage is a function of accumulating sperm and last-male precedence in a butterfly. In addition to sperm, some butterfly species also provide the female with that sperm numbers should increase under sperm competition. Butterflies tailor their ejaculate in response to sperm competition risk and intensity. In this study, I used the cabbage butterfly (Pieris rapae) as a model system to investigate Wedell, N. Testis size increases with risk of sperm competition, as defined by female These results suggest that sperm competition in butterflies selects for increased. Larger ejaculates delay female remating and confer an advantage in sperm competition. Level of sperm competition and preferred single-mated females over double- mated conflict in butterflies: a male-transferred anti-aphrodisiac reduces harass-. Key words: monarch butterflies, PGI genotype, sperm competition, Experimental butterflies were the second-fourth generations. Parker's lab in Liverpool for a 3 year post-doc, working on sexual selection and sperm competition in butterflies and crickets.