在黑猩猩中避免生殖冲突和更年期的演变
Lauren C White1,2, Dieter Lukas3, Kevin E Langergraber4
1Department of Primate Behaviour and Evolution, Max-Planck-Institute for Evolutionary Anthropology, Leipzig, Germany.
Royal Society open science
|June 26, 2025
概括
生殖冲突可能会解释黑猩猩的更年期. 在社会群体中,与年龄的关系增加有利于生殖停止,与在Ngogo黑猩猩观察到的生育率下降保持一致.
科学领域:
- 进化生物学是进化的生物学.
- 灵长类动物学 灵长类动物学
- 行为生态学 行为生态学
背景情况:
- 更年期在自然界是罕见的,假设只在特定的社会和交配系统中受到青.
- 生殖冲突假设认为,在社会群体中,随着当地交配和雌性分散的年龄增加的相关性有利于生殖停止.
- 最近的观察表明,在Ngogo黑猩猩群体中出现了更年期.
研究的目的:
- 调查生殖冲突在Ngogo黑猩猩更年期进化的作用.
- 为了描述Ngogo黑猩猩社区内的亲属关系动态.
- 测试观察到的亲属关系动态是否支持生殖停止的进化.
主要方法:
- 利用了来自Ngogo黑猩猩社区的观测和基因组数据.
- 描述了亲属关系的动态,重点关注社区成员之间的特定年龄的关系.
- 应用了包容性健康公式来评估基于亲属数据的生殖停止选择.
主要成果:
- 雌性分散和本地繁殖导致雄性和雌性黑猩猩之间的亲属关系的年龄特定增加.
- 小组中的亲属关系动态有利于40岁左右开始的更年期的演变.
- 这些发现与在Ngogo黑猩猩群体中观察到的与年龄相关的生育率下降相一致.
结论:
- 由亲属关系动态驱动的生殖冲突可能导致了黑猩猩生殖后寿命的演变.
- 恩戈戈黑猩猩社区为了解导致更年期的进化压力提供了一个潜在的模型.
- 进一步的研究可以探索繁殖冲突在其他社会物种中的更广泛影响.
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