Socially flexible female choice and premating isolation in field crickets (Teleogryllus spp.).
Socially flexible female choice and premating isolation in field crickets (Teleogryllus spp.).
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田间蟋蟀（Teleogryllus spp.）的社会灵活雌性选择和交配前隔离。
DOI：
10.1111/jeb.12285
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发表时间：
2014
影响因子：
2.1
通讯作者：
Bailey NW
中科院分区：
文献类型：
--
作者：
Bailey NW
由于择偶在生殖隔离中起着关键作用，因此预测社会对择偶的影响会影响密切相关类群的进化分歧。然而，目前尚不清楚在异性和同种雄性信号之间进行选择的雌性是否会以与仅在同种配偶之间进行区分时相同的方式或相同的程度使用以前经历过的社会信息。我们测试了这两个领域的蟋蟀姐妹物种（Teleogryllus oceanicusandTeleogryllus commodus），其中相当多的信息是已知的男性呼叫歌曲在交配前隔离的作用，除了声学经验的影响，生殖性状的发展。我们操纵这两个物种的复制种群的声学经验，并发现，出乎意料的是，男性呼叫歌曲在饲养过程中的经验并没有改变如何准确的女性在选择一个同种在一个异性的男性歌曲播放试验。然而，女性的声学经验，大大减少响应男性歌曲相比，天真的女性。我们的研究结果表明，在声学环境的变化影响这两个物种的择偶，但它可能有一个有限的影响交配前隔离。事实上，在种间交配歧视的社会灵活性并没有出现相同的操作发生在同种交配歧视突出的重要性，考虑的背景下，动物行使社会灵活的交配行为。我们提出了一个解释，为什么社会的灵活性可能是上下文依赖性和讨论的后果，这种灵活性的进化生殖隔离。
Social influences on mate choice are predicted to influence evolutionary divergence of closely related taxa, because of the key role mate choice plays in reproductive isolation. However, it is unclear whether females choosing between heterospecific and conspecific male signals use previously experienced social information in the same manner or to the same extent that they do when discriminating among conspecific mates only. We tested this using two field cricket sister species (Teleogryllus oceanicusandTeleogryllus commodus), in which considerable information is known about the role of male calling song in premating isolation, in addition to the influence of acoustic experience on the development of reproductive traits. We manipulated the acoustic experience of replicate populations of both species and found, unexpectedly, that experience of male calling song during rearing did not change how accurate females were in choosing a conspecific over a heterospecific male song during playback trials. However, females with acoustic experience were considerably less responsive to male song compared with naïve females. Our results suggest that variation in the acoustic environment affects mate choice in both species, but that it may have a limited impact on premating isolation. The fact that social flexibility during interspecific mate discrimination does not appear to operate identically to that which occurs during conspecific mate discrimination highlights the importance of considering the context in which animals exercise socially flexible mating behaviours. We suggest an explanation for why social flexibility might be context dependent and discuss the consequences of such flexibility for the evolution of reproductive isolation.