Female mate preference and sexual conflict: Females prefer males that have had fewer consorts
Female mate preference and sexual conflict: Females prefer males that have had fewer consorts
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DOI：
10.1086/429352
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发表时间：
2005-05-01
影响因子：
2.9
通讯作者：
Moore, PJ
中科院分区：
文献类型：
--
作者：
Harris, WE;Moore, PJ
作为配偶，男性品质的不同方面可以独立变化。在这种情况下，雌性可能需要使用多种线索来准确评估配偶的整体质量。研究了小蠊的交配偏好模式。在这个物种中发生性冲突是因为雄性对雌性交配接受能力的操纵会导致雌性适应能力的降低。我们预测，由于雄性的操纵，雌性不能在单次繁殖中交配，因此雌性应该评估雄性的交配历史，以避免与由于精子衰竭而导致低生育能力的雄性交配。在一项配偶偏好实验中，我们发现雌性会歧视多次交配的雄性。雌性也歧视那些与几只雌性交配但被禁止与这些雌性交配的雄性。因此，雌性似乎能够从以前的配偶身上发现雄性的线索，并利用这些信息来避免与精子耗尽的雄性交配。我们认为雌性通常会使用多种线索来评估配偶质量的不同方面，特别是当雄性质量随时间变化时。这是一个研究不足的现象，可以帮助解释女性交配偏好的个体差异。
Different aspects of male quality as a mate can vary independently. When this is the case, females may need to use multiple cues to accurately assess overall mate quality. We examined the pattern of mating preference in the cockroach Nauphoeta cinerea. Sexual conflict occurs in this species because male manipulation of female mating receptivity can result in reduced female fitness. We predicted that since females cannot remate within a single reproductive bout because of male manipulation, females should assess male mating history to avoid mating with males with low fertility caused by sperm exhaustion. In a mate-preference experiment, we found that females discriminated against males who had mated multiple times. Females also discriminated against males who had consorted with several females but had been prevented from mating with those females. Thus, females appeared to be able to detect cues on males that were derived from previous mates and to use this information to avoid mating with sperm-exhausted males. We suggest that females may commonly use multiple cues to assess different aspects of mate quality, especially when male quality changes over time. This is an under-studied phenomenon that could help explain individual variation in female mating preferences.