Socially integrated female chimpanzees have lower offspring mortality

IF 4.1 2区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

iScience Pub Date : 2025-06-09 DOI:10.1016/j.isci.2025.112863

Joseph T. Feldblum , Kara K. Walker , Margaret A. Stanton , Elizabeth V. Lonsdorf , Deus C. Mjungu , Carson M. Murray , Anne E. Pusey

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Abstract

In humans and other social mammals, more socially connected females often have higher fitness. Yet evidence linking female sociality to offspring survival remains inconsistent, and is limited to a handful of primate species in which females depend on close female kin for social status. Here, we examine the relationship between female social integration and offspring survival in eastern chimpanzees. We find that females that were more socially integrated with other females in the year before giving birth had higher offspring survival to age 1 (the period of highest mortality) and age 5 (the approximate age of weaning). Furthermore, social integration remained a strong predictor of offspring survival among females without close female kin. Our results thus add to a small set of studies linking sociality with offspring survival, here in the dispersing sex. As in humans, more socially connected female chimpanzees have higher offspring survival, despite primarily residing with non-kin.

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融入社会的雌性黑猩猩后代的死亡率较低

在人类和其他群居哺乳动物中，社会关系越紧密的雌性往往具有更高的适应性。然而，将雌性社会性与后代生存联系起来的证据仍然不一致，而且仅限于少数灵长类物种，在这些物种中，雌性依靠近亲来获得社会地位。在这里，我们研究了东部黑猩猩中雌性社会整合与后代存活率之间的关系。我们发现，在分娩前一年与其他雌性社会融合程度较高的雌性在1岁（死亡率最高的时期）和5岁（断奶的大致年龄）的后代存活率更高。此外，社会整合仍然是没有近亲的雌性后代存活的一个强有力的预测因素。因此，我们的研究结果增加了将社会性与后代存活率联系起来的一小部分研究，这里是分散性。和人类一样，社会关系越紧密的雌性黑猩猩的后代存活率越高，尽管它们主要与非亲属生活在一起。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

iScience Multidisciplinary-Multidisciplinary

CiteScore

7.20

自引率

1.70%

发文量

1972

审稿时长

6 weeks

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