Multimodal mate assessment by male praying mantids in a sexually cannibalistic mating system
Multimodal mate assessment by male praying mantids in a sexually cannibalistic mating system
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DOI：
10.1016/j.anbehav.2010.02.025
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发表时间：
2010-05-01
期刊：
影响因子：
2.5
通讯作者：
Herberstein, Marie E.
中科院分区：
文献类型：
--
作者：
Barry, Katherine L.;Holwell, Gregory I.;Herberstein, Marie E.
性选择的传统观点是竞争的男性和挑剔的女性;然而，最近人们已经认识到，男性可能会表现出择偶时，女性的质量不同，当男性遭受与交配相关的成本。性相食交配系统提供了一个机会，进一步研究男性的配偶选择：高成本可能涉及的交配过程中的男性，以及女性的质量变化，预测男性的配偶选择。我们使用的祈祷螳螂Pseudomantis albofimbriata，以确定女性的身体状况对男性择偶的影响，在一个系统中，频繁precopulatory性食人。雌性的身体状况与繁殖力呈正相关，与同类相食的倾向呈负相关，因此我们预测雄性会强烈偏好身体状况良好的雌性，以最大限度地发挥其生殖潜力。我们的同时选择测试的结果表明，男性使用化学和视觉线索的配偶的位置和评估，他们可以使用这些感官方式来区分和选择女性之间的身体状况不同，具有显着的偏好良好的条件女性。然而，令人惊讶的是，男性很少拒绝条件差的女性在更生态相关的情况下，只有一个直接的潜在伴侣和两个感官模式提供给他们，这可能是由强大的争夺竞争祈祷螳螂系统。这些结果表明，即使雌性质量不同，雄性交配的成本也很高，雄性对配偶的排斥并不总是进化而来的。版权所有（C）2010。由爱思唯尔有限公司代表动物行为研究协会出版。保留所有权利。
The traditional view of sexual selection has been that of competing males and choosy females; however, more recently it has been recognized that males may exhibit mate choice when females vary in quality and when males suffer costs associated with mating. Sexually cannibalistic mating systems provide an opportunity to examine male mate choice further: the high costs potentially involved in the mating process for males, as well as variation in female quality, predict male mate choice. We used the praying mantid Pseudomantis albofimbriata to determine the effect of female body condition on male mate choice in a system with frequent precopulatory sexual cannibalism. Female body condition is positively correlated with fecundity and negatively correlated with the propensity to cannibalize, so we predicted males would strongly prefer females in good condition to maximize their reproductive potential. Results of our simultaneous choice tests showed that males use chemical and visual cues for mate location and assessment, and that they can use either of these sensory modalities to distinguish and choose between females differing in body condition, with a significant preference for good-condition females. However, surprisingly, males rarely rejected poor-condition females in the more ecologically relevant scenario of only one immediate potential mate and both sensory modes available to them, which may be explained by the strong scramble competition known for praying mantid systems. These results show that even when female quality varies and the cost of mating for males is substantial, male mate rejection does not always evolve. Crown Copyright (C) 2010. Published on behalf of The Association for the Study of Animal Behaviour by Elsevier Ltd. All rights reserved.