Cultural transmission of vocal dialect in the naked mole-rat
Cultural transmission of vocal dialect in the naked mole-rat
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DOI：
10.1126/science.abc6588
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发表时间：
2021-01-29
期刊：
影响因子：
56.9
通讯作者：
Lewin, Gary R.
中科院分区：
文献类型：
--
作者：
Barker, Alison J.;Veviurko, Grigorii;Lewin, Gary R.
裸鼹鼠（学名：Heterocephalus glaber）是动物王国中最合作的群体之一，在一个繁殖女王的控制下生活在多代殖民地。然而，他们如何维持这种高度组织化的社会结构尚不清楚。在这里，我们表明，最常见的裸鼹鼠发声，软啁啾，是用来传递信息的群体成员，创造独特的殖民地方言。音频回放实验表明，个体对家乡方言做出优先的声音反应。在出生后早期在外国殖民地培育的幼崽学习其收养殖民地的语音方言，这表明语音签名的垂直传播和灵活性。方言的完整性部分地由女王控制：方言的凝聚力随着女王的消失而下降，只有在新女王的崛起时才重新融合。
Naked mole-rats (Heterocephalus glaber) form some of the most cooperative groups in the animal kingdom, living in multigenerational colonies under the control of a single breeding queen. Yet how they maintain this highly organized social structure is unknown. Here we show that the most common naked mole-rat vocalization, the soft chirp, is used to transmit information about group membership, creating distinctive colony dialects. Audio playback experiments demonstrate that individuals make preferential vocal responses to home colony dialects. Pups fostered in foreign colonies in early postnatal life learn the vocal dialect of their adoptive colonies, which suggests vertical transmission and flexibility of vocal signatures. Dialect integrity is partly controlled by the queen: Dialect cohesiveness decreases with queen loss and remerges only with the ascendance of a new queen.