Acoustic signalling reflects personality in a social mammal.
Acoustic signalling reflects personality in a social mammal.
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DOI：
10.1098/rsos.160178
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发表时间：
2016-06
影响因子：
3.5
通讯作者：
Collins LM
中科院分区：
文献类型：
--
作者：
Friel M;Kunc HP;Griffin K;Asher L;Collins LM
个体之间的社会互动通常是通过声音信号来调节的。如果声音信号是一致的，并且与个体的个性有关，那么信号中这些一致的个体差异可能是社会互动的重要驱动因素。然而，在非人类哺乳动物中，很少有研究调查声音信号与个性之间的关系。在这里，我们展示了一种高度社会化的哺乳动物——家猪（Sus scrofa domestica）的声信号率是可重复的，并且与个性密切相关。此外，声信号在不同质量的环境中也有所不同，在质量差的环境中，雄性的发声率比在质量好的环境中雌性和雄性的发声率要低。这种差异可能是由性格介导的，与来自丰富环境的猪相比，来自低质量环境的猪具有更多的反应性和更极端的性格得分。我们的研究结果进一步证明，声音信号反映了非人类哺乳动物的个性。反映个性的信号可能对塑造社会行为的进化产生深远的影响，因为声音通信是动物社会的一个组成部分。
Social interactions among individuals are often mediated through acoustic signals. If acoustic signals are consistent and related to an individual's personality, these consistent individual differences in signalling may be an important driver in social interactions. However, few studies in non-human mammals have investigated the relationship between acoustic signalling and personality. Here we show that acoustic signalling rate is repeatable and strongly related to personality in a highly social mammal, the domestic pig (Sus scrofa domestica). Furthermore, acoustic signalling varied between environments of differing quality, with males from a poor-quality environment having a reduced vocalization rate compared with females and males from an enriched environment. Such differences may be mediated by personality with pigs from a poor-quality environment having more reactive and more extreme personality scores compared with pigs from an enriched environment. Our results add to the evidence that acoustic signalling reflects personality in a non-human mammal. Signals reflecting personalities may have far reaching consequences in shaping the evolution of social behaviours as acoustic communication forms an integral part of animal societies.