Mate choice plasticity in the field cricket Teleogryllus oceanicus: effects of social experience in multiple modalities
Mate choice plasticity in the field cricket Teleogryllus oceanicus: effects of social experience in multiple modalities
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DOI：
10.1007/s00265-011-1237-8
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发表时间：
2011-12-01
影响因子：
2.3
通讯作者：
Bailey, Nathan W.
中科院分区：
文献类型：
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作者：
Bailey, Nathan W.
社会经验可以引起择偶表型的可塑性变化，但很少有人知道的程度，从一个模态的社会信息可以影响交配决策的基础上，从不同的模态的信息。我使用了场蟋蟀Teleogryllus oceanicus测试是否经验的化学线索模仿高密度的性成熟男性的声音信号的基础上导致的配偶选择的变化。T.海洋蝽雄性会发出长距离的鸣叫声来吸引雌性交配，但它们也会在其角质层（CHC）上产生蜡质的非挥发性烃，当沉积在基质上时，这些烃可以被雌性检测到，并可以提供人口统计信息。我操纵女性的经验基板绑定男性CHCs，然后进行声学择偶试验。当CHCs存在于试验过程中的基板上，女性表现出更大的动机，以响应男性呼叫歌曲。这种影响减少了重复暴露于男性歌曲，表明嗅觉线索在改变声学择偶的重要性随着暴露于声学信号的增加而降低。然而，时间性质的CHC的经验很重要：以前的经验，CHC并没有改变随后的女性选择男性呼叫歌曲的特点。随着时间的推移，暴露于男性歌曲增加了配偶接受的阈值，个体在整体反应水平上差异很大。综上所述，研究结果表明，T. oceanicus，但他们并不支持这样的想法，即先前的经验，社会线索在一个模式，必然会影响后来的交配决定的基础上，其他信号模式。
Social experience can elicit phenotypically plastic changes in mate choice, but little is known about the degree to which social information from one modality can influence mating decisions based on information from a different modality. I used the field cricket Teleogryllus oceanicus to test whether experience of chemical cues mimicking a high density of sexually mature males causes changes in mate choice based on acoustic signals. T. oceanicus males produce long-range calling songs to attract females for mating, but they also produce waxy, non-volatile hydrocarbons on their cuticle (CHCs) which, when deposited on a substrate, can be detected by females and may provide demographic information. I manipulated female experience of substrate-bound male CHCs and then performed acoustic mate choice trials. When CHCs were present on the substrate during trials, females showed greater motivation to respond to male calling song. This effect diminished with repeated exposure to male songs, demonstrating that the importance of olfactory cues in altering acoustic mate choice decreased with increasing exposure to acoustic signals. However, the temporal nature of CHC experience mattered: previous experience of CHCs did not alter subsequent female choice for male calling song traits. Exposure to male song increased the threshold of mate acceptance over time, and individuals varied considerably in overall levels of responsiveness. Taken together, the results demonstrate that mate choice is dependent on social context mediated by multiple modalities in T. oceanicus, but they do not support the idea that prior experience of social cues in one modality necessarily influences later mating decisions based on other signalling modalities.