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首页> 外文期刊>Journal of Avian Biology >Remote touch prey-detection by Madagascar crested ibises Lophotibis cristata urschi
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Remote touch prey-detection by Madagascar crested ibises Lophotibis cristata urschi

机译：马达加斯加朱c朱鹭Lophotibis cristata urschi的远程触摸猎物检测

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摘要

Birds that forage by probing must often rely on sensory systems other than vision to detect their buried prey. Such senses may include hearing (e.g. Australian magpies (Atramidae), American robins (Turdidae)) or chemical senses/olfaction (e.g. kiwi (Apterygidae) and some shorebirds (Scolopacidae)). Probe foraging kiwi and shorebirds are also able to use vibrotactile cues to locate prey buried in the substrate at some distance from their bill-tips ('remote touch'). These birds possess an organ consisting of a honey-comb of sensory pits in bone of the bill-tips, packed with mechanoreceptive nerve ending (Herbst corpuscles). Such a bill-tip organ has recently also been described in ibises (Threskiornithinae), but its function not elucidated. We designed a foraging experiment presenting mealworm prey to three captive Madagascar crested ibises Lophotibis cristata urschi under a variety of trial conditions to discover whether they were using remote touch, mediated by their bill-tip organ; chemosense/olfaction; or hearing to locate buried prey. The ibises were reliant on remote touch for prey detection - the first time this sensory system has been demonstrated for this group of birds. They did not appear to use hearing or chemical senses/olfaction to aid in prey detection.
机译：通过探测觅食的鸟类通常必须依靠视觉以外的感觉系统来检测其掩埋的猎物。此类感官可能包括听力（例如澳大利亚喜pies（Atramidae），美国知更鸟（Turdidae））或化学感官/嗅觉（例如猕猴桃（Apterygidae）和某些水鸟（Scolopacidae））。觅食猕猴桃和shore鸟的探针还可以使用触觉提示来定位埋藏在基质中的猎物，使其远离其钞票尖端（“远程接触”）。这些鸟的器官由在提示尖端的骨头中的感觉坑蜂窝组成，并装有机械感受神经末梢（赫伯斯特小体）。近年来，在宜必思（Threskiornithinae）中也描述了这样的小费器官，但其功能尚未阐明。我们设计了一个觅食实验，在各种试验条件下，将粉虫猎物呈现给三只圈养的马达加斯加凤头朱鹭Lophotibis cristata urschi，以发现它们是否正在使用由其尖端器官介导的远程触摸;化学感觉/嗅觉;或听见找到埋葬的猎物。宜必思酒店依靠远程触摸进行猎物检测-这是首次为这一群鸟类展示这种感觉系统。他们似乎没有使用听力或化学感觉/嗅觉来帮助猎物检测。

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