期刊
ARCHIVES OF BIOLOGICAL SCIENCES
卷 63, 期 1, 页码 129-136出版社
INST BIOLOSKA ISTRAZIVANJA SINISA STANKOVIC
DOI: 10.2298/ABS1101129S
关键词
Sexual selection; sexual conflict; longevity; ageing; mortality rate
类别
资金
- Ministry of Science and Technological Development of Serbia [173007]
In most animals the average longevity of females is greater than that of males. Among the many explanations of the evolution of sex-specific mortality rates, we tested the hypothesis that sexual selection plays an important role in shaping the longevity and ageing of both sexes. The present study was performed using laboratory populations of Acanthoscelides obtectus, which were obtained either at an early (E) or late (L) age, where the inadvertently created conditions provided opportunities for the evolution of a monogamous and polygamous mating system, respectively. As predicted, under intense sexual selection (L populations) substantial sex differences in longevity were detected both in mated and virgin experimental beetles. On the other hand, monogamy, i.e. relaxation of sexual selection, in E populations resulted in elimination of the differences in longevity between mated females and males, and even led to postponed senescence of virgin males beyond the level exhibited by virgin females.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据