Seismic communication and mate choice in wolf spiders: Components of male seismic signals and mating success
Seismic communication and mate choice in wolf spiders: Components of male seismic signals and mating success
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DOI：
10.1016/j.anbehav.2007.09.026
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发表时间：
2008-04-01
期刊：
影响因子：
2.5
通讯作者：
Uetz, George W.
中科院分区：
文献类型：
--
作者：
Gibson, Jeremy S.;Uetz, George W.
通过多模式通信发送的信息(即，多个感官模式中的信号)可能是冗余的(备份信号)，或者内容可能随着每种模式的不同而不同(多个消息)。雄性灌木腿狼蛛(Schizocosa ocreata(Hentz)(蜘蛛目：狼蛛科))使用复杂的多通道(视觉和地震)求偶信号。此前已有研究表明，视觉成分是雌性在择偶时使用的依赖于条件的信号。在这里，我们基于孤立的地震信号来检查女性的选择，以确定女性使用哪些方面来评估男性，并确定视觉和地震信号是否多余。当雌性单独暴露在雄性求爱的地震分量中时，雌性表现出接受能力。最能预测女性感受性的地震信号属性是敲击的峰值幅度、峰值频率、最大频率和颤动脉冲持续时间。此外，与地震信号相关的两个行为属性，螯合性击中率和双击率，也是接受性的良好预测因子。激发女性感受性的男性处于较好的状态，并且地震通信的属性与男性的大小和质量相关，这表明在地震通信中可能存在关于男性素质的信息。特征相关性也揭示了视觉和地震通道中包含的信息重叠。鉴于这种重叠，我们得出结论，地震和视觉信号在很大程度上是冗余的，可以作为备用信号，但也可能传达关于不同男性属性的信息。多馀信号的使用将适用于华南星，因为该物种生活在结构复杂的森林凋落物环境中，在那里信号可以迅速衰减。(C)2008年动物行为研究协会。爱思唯尔有限公司出版。保留所有权利。
Information sent by multimodal communication (i.e. signals in multiple sensory modalities) may be redundant('backup' signals) or may vary in content with each mode ('multiple messages'). Males of the brush-legged wolf spider, Schizocosa ocreata ( Hentz) ( Araneae: Lycosidae), use complex multimodal ( visual and seismic) courtship signals. The visual component has previously been shown to be a condition-dependent signal used by females in mate choice. Here, we examine female choice based on isolated seismic signals to identify which aspects females use to evaluate males, and to determine whether visual and seismic signals are redundant. Females showed receptivity when exposed to the seismic component of male courtship alone. The attributes of seismic signals best predicting female receptivity were peak amplitude, peak frequency and maximum frequency of percussive strikes and stridulation pulse duration. Moreover, two behavioural attributes associated with seismic signals, cheliceral strike rate and double-tap rate, were also good predictors of receptivity. Males eliciting female receptivity were in better condition, and attributes of seismic communication were correlated with male size and mass, suggesting the possibility of information about male quality in seismic communication. Trait correlations also revealed overlap in information contained within visual and seismic channels. Given this overlap, we conclude that seismic and visual signals are largely redundant and may serve as backup signals but might also convey information about different male attributes. The use of redundant signalling would be adaptive in S. ocreata because this species inhabits structurally complex forest leaf litter environments where signals can be attenuated rapidly. (C) 2008 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.