Polyandry or female mating with several different partners in a single fertile period is a widespread phenomenon possibly involving both costs and benefits. This study tested whether remating after weeks of initial copulation (periodic multiple mating) has fitness consequences for females of red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae), a cosmopolitan storage pest. We hypothesize that females benefit from higher mating frequency and more mates through sperm replenishment and/or c…
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