Male water striders attract predators to intimidate females into copulation.
Male water striders attract predators to intimidate females into copulation.
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DOI：
10.1038/ncomms1051
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发表时间：
2010-08-10
影响因子：
16.6
通讯作者：
Jablonski, Piotr G.
中科院分区：
文献类型：
--
作者：
Han, Chang S.;Jablonski, Piotr G.
尽管我们最近的进展，性别之间的性冲突和对抗性的共同进化的理解，种间的相互作用，如捕食，在这些进化过程中的作用仍然不清楚。在本文中，我们提出了一个新的男性交配策略，即男性水trider Gerris gracilicornis恐吓女性直接吸引捕食者，只要她不接受男性的胁迫交配企图。我们认为，这种男性的战略是一个counteradaptation进化的女性形态盾牌保护她的生殖器从胁迫性的水<$男。共和党gracilicornis交配系统清楚地代表了两性之间的共同进化军备竞赛模型所预期的效果，即一种性别导致另一种性别的适合度下降。此外，我们的研究表明，种间的相互作用，如捕食，可以在两性之间的拮抗协同进化的关键作用。雌性水螈已经进化出一种控制交配频率的策略。在这篇文章中，雄性水在交配过程中会吸引捕食者，以迫使雌性更快地屈服。这些研究结果表明，如何适应行为可能会受到捕食。
Despite recent advances in our understanding of sexual conflict and antagonistic coevolution between sexes, the role of interspecific interactions, such as predation, in these evolutionary processes remains unclear. In this paper, we present a new male mating strategy whereby a male water strider Gerris gracilicornis intimidates a female by directly attracting predators as long as she does not accept the male's coercive copulation attempt. We argue that this male strategy is a counteradaptation to the evolution of the female morphological shield protecting her genitalia from coercive intromission by water strider males. The G. gracilicornis mating system clearly represents an effect expected from models of the coevolutionary arms race between sexes, whereby one sex causes a decrease in the fitness component of the other sex. Moreover, our study demonstrates a crucial role that interspecific interactions such as predation can have in the antagonistic coevolution between sexes. Female water striders have evolved a strategy to control the frequency of copulation. In this article, male water striders are shown to attract predators during copulation to coerce the female into yielding more quickly. These findings demonstrate how adaptive behaviour may be influenced by predation.
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影响因子：
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作者：
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通讯作者：
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DOI：
10.1098/rspb.2008.1070
发表时间：
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影响因子：
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