Auditory pattern recognition and steering in the cricket Teleogryllus oceanicus

Auditory pattern recognition and steering in the cricket Teleogryllus oceanicus
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蟋蟀 Teleogryllus oceanicus 的听觉模式识别和转向

DOI:
10.1111/phen.12043
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发表时间:
2014
影响因子:
1.5
通讯作者:
CROS E
CROS E
中科院分区:
农林科学4区
文献类型:
--
作者:
CROS E

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雄性蟋蟀Teleogryllus oceanicus(Le Guillou)产生一种复杂的物种特异性呼叫歌曲,其中包含单脉冲(啁啾)组和双脉冲(颤音)组的短语,以吸引雌性,它们会飞向或走向唱歌的雄性。在开环轨迹球实验中,对由啁啾和颤音组成的正常呼叫歌曲短语的声定向转向反应最强,这表明这两个组件对于最大吸引力是必要的。只是啁啾或颤音的序列是不太有效的诱导声定向行走和转向。分裂的歌曲范例被用来分析转向行为的基础上更详细的方向。雌性的趋声转向反映了分裂歌曲范式的交替声学模式。具有高时间分辨率的分析表明,即使当呼叫歌曲仅从一侧呈现时,转向速度和朝向歌曲的横向偏差也被转向事件调制为单个声音脉冲。因此,整合了歌曲结构的模式识别似乎并不直接参与快速转向反应。这种组织的phonotactic行为与并行处理的模式识别和转向是类似于其他蟋蟀物种,并可能允许T。oceanicusfemales转向短暂的扭曲的歌曲模式,因为他们发生在自然栖息地。
Male cricketsTeleogryllus oceanicus(Le Guillou) produce a complex species‐specific calling song with phrases combining groups of single pulses (chirps) and groups of double‐pulses (trills) to attract females, which fly or walk towards singing males. In open‐loop trackball experiments, phonotactic steering responses to normal calling song phrases consisting of chirps and trills are strongest, suggesting that both components are necessary for maximal attractiveness. Sequences of just chirps or trills are less effective in eliciting phonotactic walking and steering. Split‐song paradigms are used to analyze the steering behaviour underlying orientation in more detail. The females' phonotactic steering reflects the alternating acoustic pattern of the split‐song paradigm. Analysis with high temporal resolution demonstrate, that even when the calling song is presented only from one side, the steering velocity and lateral deviation towards the song is modulated by steering events to single‐sound pulses. Therefore, pattern recognition, which integrates the structure of the song, appears not to be directly involved in the rapid steering response. This organization of phonotactic behaviour with a parallel processing of pattern recognition and steering is similar to other cricket species and may allowT. oceanicusfemales to steer transiently towards distorted song patterns as they occur in natural habitats.
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