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首页> 美国卫生研究院文献>Proceedings of the Royal Society B: Biological Sciences >Dynamic mate-searching tactic allows female satin bowerbirds Ptilonorhynchus violaceus to reduce searching.
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Dynamic mate-searching tactic allows female satin bowerbirds Ptilonorhynchus violaceus to reduce searching.

机译：动态的配偶搜寻策略可让雌性缎面弓箭鸟Ptilonorhynchus violaceus减少搜寻。

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Females can maximize the benefits of mate choice by finding high-quality mates while using search tactics that limit the costs of searching for mates. Mate-searching models indicate that specific search tactics would best optimize this trade-off under different conditions. These models do not, however, consider that females may use information from previous years to improve mate searching and reduce search costs in subsequent years. We followed female satin bowerbirds Ptilonorhynchus violaceus during mate searching and reconstructed their search patterns. We found that females who chose very attractive males typically mated with the same male in the following year, resulting in these females sampling fewer males than those who switched mates. In contrast, females who mated with less attractive males typically rejected their previous mates and searched longer for more attractive mates in the following mating season. A potential cost to mate searching is suggested by the observed increase in the likelihood of force-copulation attempts from marauding males with increased searching. Our results suggest that by using past experiences to adjust their search tactics, females may obtain high-quality mates while limiting search costs. These results emphasize the need to consider historical effects in studies of sexual selection, especially for long-lived species with stable display sites.
机译：雌性可以通过寻找高质量的伴侣，同时使用限制搜索伴侣成本的搜索策略，最大程度地发挥伴侣选择的好处。配合搜索模型表明，特定的搜索策略将在不同条件下最佳地优化这种权衡。但是，这些模型并未考虑雌性可能会使用前几年的信息来改善伴侣搜索并降低随后几年的搜索成本。在配偶搜索过程中，我们跟踪了雌性缎面弓er Ptilonorhynchus violaceus，并重建了它们的搜索模式。我们发现，选择非常吸引人的雄性的雌性通常在第二年与同一雄性交配，导致这些雌性采样的雄性比那些交换伴侣的雌性少。相反，与吸引力较弱的雄性交配的雌性通常会拒绝其先前的伴侣，并在接下来的交配季节中寻找更有吸引力的雌性。观察到的因搜寻增加而掠夺雄性的雄性强行进行交配尝试的可能性增加，暗示了交配搜寻的潜在成本。我们的研究结果表明，通过利用过去的经验来调整搜索策略，女性可以在限制搜索成本的同时获得高质量的伴侣。这些结果强调需要在性选择研究中考虑历史影响，特别是对于具有稳定展示位点的长寿命物种。

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