Seismic signals in a courting male jumping spider (Araneae:Salticidae)
Seismic signals in a courting male jumping spider (Araneae:Salticidae)
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DOI：
10.1242/jeb.00634
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发表时间：
2003-11-01
影响因子：
2.8
通讯作者：
Hoy, RR
中科院分区：
文献类型：
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作者：
Elias, DO;Mason, AC;Hoy, RR
跳蛛的视觉展示一直被认为是动物交流中最复杂的行为之一。我们现在表明，一个物种，Habronattus dossenus，也表现出前所未有的复杂性的振动（地震）模态的信号行为。我们拍摄了求偶行为，并使用激光测振仪记录地震信号，并观察到每个突出的视觉信号都伴随着随后的地震分量。观察到三大类地震信号（“重击”、“刮擦”和“嗡嗡声”）。为了进一步表征这些信号，我们使用了同步高速视频和激光测振仪，并观察到只有一个地震信号分量与视觉信号同时产生。我们通过一系列的信号消融实验研究了地震信号产生的机制。防止腹部运动有效地“沉默”地震信号，但不影响任何求偶行为的视觉成分。防止腹部与头胸部直接接触，同时仍然允许腹部运动，仅抑制重击和刮擦信号，但不抑制嗡嗡声信号。因此，尽管视觉和地震信号在时间上有精确的协调，但这不是由于共同的产生机制。地震信号独立于视觉信号产生，并且至少三个独立的机制用于产生单独的地震信号分量。
Visual displays in jumping spiders have long been known to be among the most elaborate animal communication behaviours. We now show that one species, Habronattus dossenus, also exhibits an unprecedented complexity of signalling behaviour in the vibratory (seismic) modality. We videotaped courtship behaviour and used laser vibrometry to record seismic signals and observed that each prominent visual signal is accompanied by a subsequent seismic component. Three broad categories of seismic signals were observed ('thumps', 'scrapes' and 'buzzes'). To further characterize these signals we used synchronous high-speed video and laser vibrometry and observed that only one seismic signal component was produced concurrently with visual signals. We examined the mechanisms by which seismic signals are produced through a series of signal ablation experiments. Preventing abdominal movements effectively 'silenced' seismic signals but did not affect any visual component of courtship behaviour. Preventing direct abdominal contact with the cephalothorax, while still allowing abdominal movement, only silenced thump and scrape signals but not buzz signals. Therefore, although there is a precise temporal coordination of visual and seismic signals, this is not due to a common production mechanism. Seismic signals are produced independently of visual signals, and at least three independent mechanisms are used to produce individual seismic signal components.