Synchronous waving in an ocypodid crab, Ilyoplax pusilla:: analyses of response patterns to video and real crabs
Synchronous waving in an ocypodid crab, Ilyoplax pusilla:: analyses of response patterns to video and real crabs
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DOI：
10.1007/s002270050344
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发表时间：
1998-06-01
期刊：
影响因子：
2.4
通讯作者：
Aizawa, N
中科院分区：
文献类型：
--
作者：
Aizawa, N
在几种环足类螃蟹中，包括Ilyopax pusilla(De Haan)，挥手的展示往往在相邻的个体之间同步。然而，目前还没有进行任何量化研究。在这项研究中，研究了雄性普氏恒河蟹对视频和真蟹挥手的反应。即使在没有刺激波的情况下，也能观察到自发的周期性波动。当视频蟹的单个孤立波被随机传递(单脉冲扰动)时，螃蟹要么在刺激后立即挥手，要么在一段时间后挥手。假设刺激后的波是在这些刺激之前立即触发的，螃蟹通常在每个刺激开始后大致持续一段时间后才做出反应。延迟时间(反应时间)接近自发波周期，但略短于自发波周期。反应时间对刺激时机(刺激时间)的依赖性最弱。螃蟹对视频蟹周期波和真实蟹波的响应与单脉冲摄动结果基本一致。虽然刺激时间和反应时间在刺激时间=0附近有一致的负相关趋势，但S。总体来说。这些结果表明，雄鸟以相位延迟同步的方式调整相对于邻居的信号时序。类似的反应模式也在萤火虫的同步散列和蜥蜴的叫声中被注意到。更有甚者。这些实验VIIth I.pusilla证明了视频回放作为该物种研究工具的价值。
In several species of ocypodid crabs, including Ilyoplax pusilla (De Haan), waving displays tend to be synchronized among neighboring individuals. However, no quantitative study has yet been conducted. In this study, responses of I. pusilla males to waving of video and real crabs were examined. Spontaneous, periodic waving was observed even when no stimulus waves were present. When single isolated waves of the video crab were randomly delivered (single pulse perturbation), crabs waved either immediately after the stimuli or after some time had elapsed. Assuming that waves immediately after the stimuli were triggered prior to those stimuli, crabs typically responded after a roughly constant delay from the onset of each stimulus. The delay (response time) was close to, but slightly shorter than, the spontaneous wave period. Dependency of response time upon timing of the stimulus (stimulus time) was at most weak. Responses of crabs to periodic waves of the video crabs and waves of the real crabs were basically consistent with the results of single pulse perturbation. although there was a consistent tendency for stimulus time and response time to be negatively correlated near stimulus time = 0 s. Overall. these results demonstrate that males of I. pusilla adjust signal timing relative to a neighbor in a manner of phase delay synchrony. The similar response pattern has also been noted in synchronous Hashing of fireflies and the calling of katydids. Moreover. these experiments viith I. pusilla demonstrate the value of video playback as a research tool in this species.