Social shaping of voices does not impair phenotype matching of kinship in mandrills
Social shaping of voices does not impair phenotype matching of kinship in mandrills
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DOI：
10.1038/ncomms8609
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发表时间：
2015-07-01
影响因子：
16.6
通讯作者：
Charpentier, M. J. E.
中科院分区：
文献类型：
--
作者：
Levrero, F.;Carrete-Vega, G.;Charpentier, M. J. E.
亲属选择理论为解释遗传相关个体间利他与合作行为的进化提供了一个强有力的理论框架。然而，作为表达亲属相关行为的一个必要过程，亲属歧视背后的直接机制仍然知之甚少。特别是，还没有研究明确地解开机制的基础上学习熟悉的真实表型匹配的亲属歧视的基础上，声音信号。在这里，我们表明，除了遗传背景，社会适应也塑造了一个旧世界的猴子（Mandrillus狮身人面像）的个人声音，即使灵长类动物的发声被认为是天生的，很少灵活。尽管如此，社会塑造的声音参数不损害亲属歧视，通过表型匹配的未知亲属，揭示了意想不到的歧视的多功能性，尽管信号的复杂性。准确的信号产生和感知，因此，在旧大陆灵长类动物的亲属识别和亲属偏见的行为提供了基础。
Kin selection theory provides a strong theoretical framework to explain the evolution of altruism and cooperative behaviour among genetically related individuals. However, the proximate mechanisms underlying kin discrimination, a necessary process to express kin-related behaviour, remain poorly known. In particular, no study has yet unambiguously disentangled mechanisms based on learned familiarity from true phenotype matching in kin discrimination based on vocal signals. Here we show that in addition to genetic background, social accommodation also shapes individual voices in an Old World monkey (Mandrillus sphinx), even though primate vocalizations were thought to be innate and little flexible. Nonetheless, social shaping of voice parameters does not impair kin discrimination through phenotype-matching of unknown relatives, revealing unexpected discriminatory versatility despite signal complexity. Accurate signal production and perception, therefore, provide a basis for kin identification and kin-biased behaviour in an Old World primate.