Norway rats help social partners in need in response to ultrasonic begging signals

Niklas Ingvar Paulsson; Michael Taborsky

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Norway rats help social partners in need in response to ultrasonic begging signals

机译：Norway rats help social partners in need in response to ultrasonic begging signals

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Abstract Begging signals are widespread in animals and have been extensively studied in the context of brood care. In contrast, the functionality of begging signals expressed among adults has not yet been scrutinised experimentally. Norway rats (Rattus norvegicus) have been shown to express 50‐kHz calls towards a social partner when in need of help to obtain food. Here, we tested with help of playbacks whether focal subjects exposed to a high rate of ultrasonic calls would increase their helping rate towards their social partner. The propensity to help a partner was significantly enhanced when the focal rats were exposed to playback with a doubled number of calls relative to baseline conditions. To the best of our knowledge, this provides the first evidence of increased help in response to an experimentally altered begging signal in adult animals.

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来源
《Ethology》 |2022年第12期|724-733|共10页
作者
Niklas Ingvar Paulsson; Michael Taborsky;
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作者单位

Institute of Ecology and Evolution, University of Bern;

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原文格式 PDF
正文语种英语
中图分类动物学;
关键词
adult begging; communication; cooperation; food provisioning; helping; iterated prisoner's dilemma; prosocial behaviour; reciprocity;

Norway rats help social partners in need in response to ultrasonic begging signals

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