期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Promiscous female Euxesta eluta derive nutrients for ovarian development by expelling and consuming ejaculates 被引量:1
1
作者 Solana Abraham gisela castillo +3 位作者 Viviana Diaz Guido Van Nieuwenhove Gabriela Murua Juan Rull 《Insect Science》 SCIE CAS CSCD 2020年第3期545-557,共13页
Seminal gifts range from important material donations to items that provide little direct benefit to females.Promiscuous,female silk corn flies Euxesta eluta expel and consume male ejaculates immediately after mating.... Seminal gifts range from important material donations to items that provide little direct benefit to females.Promiscuous,female silk corn flies Euxesta eluta expel and consume male ejaculates immediately after mating.The evolution and function of this peculiar behavior are currently unknown.We performed a series of experiments aimed to:determine if females under different dietary regimes derive nutrients or water for survival and/or reproduction from ejaculate consumption,if males suffer a fitness cost from supplying females with ejaculates,and if females prefer to mate and/or are more likely to store sperm from well fed than nutritionally stressed presumably inferior males.Experiments revealed that protein deprived E.eluta females derive nutrients for ovarian development through consumption of ejaculates of protein fed males.No seminal products affecting survival appear to be transferred in the consumed ejaculate.However,ovarian development,in contrast to testes growth,occurs in detriment of longevity.Females preferred to mate with protein fed males,yet sperm retention in spermathecae was extremely rare after a single mating.This finding suggests that females could be exerting post copulatory control.A key question that remained to be addressed for the understanding of this puzzling and promiscuous mating system is what ecological factors or male traits drive females to retain sperm from one or several males in order to achieve and/or maximize fertilization potential. 展开更多
关键词 anautogeny POLYANDRY postcopulatory female control seminal gifts sperm storage
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部