The influence of maternal age and mating frequency on egg size and offspring performance in Callosobruchus maculatus (Coleoptera: Bruchidae)

摘要: Maternal age influences offspring quality of many species insects. This observed maternal influence on performance may be mediated through effects egg size, which in turn directly influenced by the female's nutritional state. Thus, behaviors that a status will indirectly and possibly life histories. Because males provide nutrients to females their ejaculate, female mating frequency is one behavior her status, thus size eggs offspring. In this paper, I first quantify bruchid beetle, Callosobruchus maculatus. then examine whether transferred during copulation reduce magnitude larval when mothers are nutrient-stressed. Egg hatchability decreased, development time increased, with increasing age. Multiple adult feeding both resulted increased size. increase mated multiply did not translate into reduced or body hatchability, but correlate improved survivorship produced old mothers. it appears because small relative age, derived from multiple history almost undetectable (detected only as survivorship). For C. maculatus, has been demonstrated (Fox 1993a), production (Credland Wright 1989; Fox survivorship, but, contrary suggestion Wasserman Asami (1985), had no detectable