Phenotypic manipulation reveals sexual conflict over precopula duration
Phenotypic manipulation reveals sexual conflict over precopula duration
复制标题
表型操纵揭示了前系带持续时间的性冲突
DOI：
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发表时间：
2008
影响因子：
2.3
通讯作者：
Rickey D. Cothran
中科院分区：
文献类型：
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作者：
Rickey D. Cothran
性冲突在自然界中很常见，但关于雌性抵抗行为在塑造交配模式中所起作用的详细行为研究却很少。我操纵雌性抵抗来研究它对两种生态不同的淡水片脚类动物配对动态的影响。我发现雌性行为在两个物种的配对前互动的结果和配对开始中都起着作用的证据。在这些物种中，雄性的最佳配对持续时间大于雌性的偏好值或在自然条件下观察到的妥协配对持续时间，从而表明性别冲突。此外，当雌性阻力降低时，雄性与雌性接触产生抓握的比例更大，这种相互作用的持续时间更长。因此，在配对持续时间上的性冲突可能同时选择雌性的抵抗和雄性的坚持，这两者都介导了Hyalella配对前相互作用的结果。接触性交配前保护配偶及其相互作用是甲壳类动物和昆虫交配系统的共同组成部分，这表明这种冲突可能在许多分类群的交配特征进化中起着重要作用。
Sexual conflict is common in nature, but detailed behavioral studies on the role female resistance behavior plays in shaping mating patterns are rare. I manipulated female resistance to examine its effects on pairing dynamics in two ecologically different freshwater amphipods. I found evidence for female behavior playing a role in both the outcome of pre-pairing interactions and the initiation of pairing in both species. In these species, the male optimum pairing duration is greater than the value preferred by females or compromised pairing durations observed under natural conditions, thus indicating sexual conflict. Furthermore, the proportion of male–female encounters producing male grasping was greater and the duration of such interactions was longer when female resistance was reduced. Thus, sexual conflict over pairing duration may select simultaneously for female resistance and for male persistence both of which mediate the outcome of pre-pairing interactions in Hyalella. Contact precopulatory mate guarding and the interactions that precede it are common components of crustacean and insect mating systems, suggesting that such conflicts may play an important role in the evolution of mating traits in many taxa.
昆虫交配系统的进化
DOI：
10.1093/acprof:oso/9780199678020.003.0004
发表时间：
2014
期刊：
--
影响因子：
--
作者：
Ritchie M
通讯作者：
Ritchie M