Male Age Affects Female Mate Preference and Reproductive Performance in the Cabbage Beetle, Colaphellus bowringi
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The influence of male age on female mate preference and reproductive performance in the cabbage beetle, Colaphellus bowringi was examined, using male and female adults of varying ages (young, middle-aged and old) after a single mating. In a simultaneous choice test, females of all age class preferentially mated with middle-aged males. Mating duration was positively related to male age. Longevity of females was not significantly affected by male age. Young females paired to middle-aged males had significantly higher egg production than those paired to old males, and the eggs of females paired to middle-aged males exhibited significantly higher hatching success than the eggs of females mated to young or old males. These results suggest that middle-aged males are more advantageous for female fitness than young and old males.
KeywordsMale age Colaphellus bowringi female mate preference mating duration longevity fecundity fertility
The research was supported by a grant from National Natural Science Foundation of P.R. China (31000176).
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