摘要
绝大多数昆虫雌性一生中不但与不同雄性交配许多次 ,而且在其特殊器官中还可长期贮藏雄性精子 ,因此来自不同雄性的的精子在与雌性卵子受精时发生激烈的精子竞争。本文综述了昆虫在多次交配与精子竞争格局中的雌雄对策。雄性对策表现在对自身与配偶身体质量状况的正确评估、精子竞争风险预测、精子异型及延长交配时程和配后保护等 ,雌性对策则表现在对雄性质量状况的正确评估、对精液的主动操纵及精子偏向性等 ,从而很好地适因多次交配和精子竞争而带来的强烈自然选择和性选择压力。
Females of many insect species mate repeatedly during their lifetime and have the ability to store sperm from different mating males in sperm storage organs. As a result, sperm from different males compete to fertilize one females eggs. Males display strategies for assessing female maternal quality, predicting future sperm competition risk, sperm heteromorphism and prolonged mating behavior. Females display strategies for assessing male paternal quality and the active manipulation of ejaculates to give precedence to different male sperm. These strategies reflect the influence of both natural and sexual selection.
出处
《昆虫学报》
CAS
CSCD
北大核心
2002年第6期833-839,共7页
Acta Entomologica Sinica
基金
中国科学院知识创新工程项目 (KSCX 2 1 0 2 0 2 )
