Clark’s nutcrackers (Nucifraga columbiana) use gestures to identify the location of hidden food
Clark’s nutcrackers (Nucifraga columbiana) use gestures to identify the location of hidden food
复制标题
克拉克胡桃夹子（Nucifraga columbiana）使用手势来识别隐藏食物的位置
DOI：
10.1007/s10071-010-0349-2
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发表时间：
2010
期刊：
影响因子：
2.7
通讯作者：
Matthew E. Wilkinson
中科院分区：
文献类型：
--
作者：
Jan Tornick;B. Gibson;D. Kispert;Matthew E. Wilkinson
异源性线索，如凝视方向和身体位置，可能是动物可以用来推断食物等资源位置的重要信息来源。异种性暗示的使用在很大程度上是用灵长类动物、狗和其他哺乳动物来研究的;关于鸟类是否也能使用异种性手势，人们知之甚少。我们测试了六个克拉克的nutcrackers在双向对象选择任务使用触摸，点，和凝视线索，以调查这些鸟是否可以使用人类的手势来寻找食物。大多数鸟类在第一次试验中能够使用触摸手势，并且在有限的试验次数后能够学会使用点和凝视（眼睛和头部交替）提示。本研究首次对一只非社会性的乌鸦进行了物体选择任务的测试。非社会性的胡桃钳的表现与社会性更强的鸦类相似，这表明具有不同进化历史的物种可以利用手势信息。
Heterospecific cues, such as gaze direction and body position, may be an important source of information that an animal can use to infer the location of resources like food. The use of heterospecific cues has been largely investigated using primates, dogs, and other mammals; less is known about whether birds can also use heterospecific gestures. We tested six Clark’s nutcrackers in a two-way object-choice task using touch, point, and gaze cues to investigate whether these birds can use human gestures to find food. Most of the birds were able to use a touch gesture during the first trial of testing and were able to learn to use point and gaze (eyes and head alternation) cues after a limited number of trials. This study is the first to test a non-social corvid on the object-choice task. The performance of non-social nutcrackers is similar to that of more social and related corvids, suggesting that species with different evolutionary histories can utilize gestural information.