Routine allomaternal nursing in a free-ranging Old World monkey
Routine allomaternal nursing in a free-ranging Old World monkey
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自由放养的旧世界猴的常规异母护理
DOI：
10.1126/sciadv.aav0499
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发表时间：
2019-02-01
期刊：
影响因子：
13.6
通讯作者：
Li, Ming
中科院分区：
文献类型：
--
作者：
Xiang, Zuofu;Fan, Penglai;Li, Ming
研究发现，金丝猴幼猴在出生后3个月内，大多数由非母亲的雌性哺乳。虽然在一些啮齿动物和食肉动物物种中，以及一些原猴、新大陆猴和人类中，有规律的异母哺乳（哺乳）记录，但在旧大陆猴和猿中并不常见。在这里，我们提出了一个详细的实地研究，异母哺乳的金丝猴（Rhinopithecus roxellana，Colobinae）。我们发现，超过87%的婴儿由母亲以外的女性喂养。异母哺乳主要局限于婴儿生命的前3个月，主要发生在以互惠方式照顾彼此后代的相关女性之间。异母喂养提高了婴儿的存活率，并没有对未来的繁殖成功的allonursers的负面影响。我们的研究结果扩大了异母哺乳的分类学分布，并提供了新的见解可能的因素驱动进化的异母哺乳行为在灵长类动物，包括人类。
We found that most infant golden snub-nosed monkeys were nursed by females other than their mothers during the first 3 months. While regular allomaternal nursing (suckling) has been documented in a number of rodent and carnivore species, as well as in some prosimians, New World monkeys, and humans, it is not common in Old World monkeys and apes. Here, we present a detailed field study of allomaternal nursing in golden snub-nosed monkeys (Rhinopithecus roxellana, Colobinae). We found that more than 87% of infants were nursed by females other than their mothers. Allomaternal nursing was largely confined to the first 3 months of an infant’s life and occurred predominantly between related females who nursed each other’s offspring in a reciprocal manner. Allomaternal nursing enhanced infant survivorship and did not have a negative impact on the future reproductive success of allonursers. Our findings expand the taxonomic distribution of allomaternal nursing and provide fresh insight into the possible factors driving evolution of allomaternal nursing behavior in primates, including humans.