Wild Chimpanzees Show a Decrease in Pant Grunting over Their First 6 Years of Life.
Wild Chimpanzees Show a Decrease in Pant Grunting over Their First 6 Years of Life.
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野生黑猩猩在生命的前六年中喘气的次数有所减少。
DOI：
10.1159/000495108
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Mitani,JohnC
中科院分区：
文献类型：
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作者：
Dunphy-Lelii,Sarah;Mitani,JohnC
来自野生黑猩猩母子二人组的大样本数据表明，幼黑猩猩的喘息声在早期发育阶段呈非线性展开。虽然婴儿开始喘息呼噜声早，母亲的比率并没有减少，婴儿喘息呼噜声下降，婴儿年龄通过婴儿期。因此，在婴儿期，母婴呼吸的不一致性增加，甚至在最早的年龄观察到一些不一致性。在90个观察到的情况下，涉及婴儿的年龄从2周到69个月，只有一个成员的母亲-婴儿的二元体喘气咕噜声;婴儿的喘气咕噜声不受他们的母亲的年龄，他们的位置在他们的母亲的身体时的问候，或男性的优势地位的问候。男婴比女婴更容易喘呼噜声。我们讨论的发展趋势的背景下，婴儿的日益独立，不断变化的社会动机，男性主导的社会等级。
Data from a large cross-sectional sample of wild chimpanzee mother-infant dyads yield evidence that young chimpanzees’ pant grunting unfolds nonlinearly over the early developmental period. Though infants begin pant grunting early, and mothers’ rates did not decrease, infant pant grunting declined as infants aged through infancy. Mother-infant dyadic pant grunting discordance therefore increased over infancy, with some discordance observed at even the earliest ages. In half of 90 observed instances involving infants ranging in age from 2 weeks to 69 months, only one member of the mother-infant dyad pant grunted; infants’ pant grunting was not influenced by their mother’s age, their position on their mother’s body at the time of the greeting, or the dominance status of the male greeted. Male infants were more likely to pant grunt than female infants. We discuss the developmental trend in the context of infants’ increasing independence, changing social motivations, and male-dominated social hierarchy.