特质
生殖成功
生物
寿命
更年期
繁殖
人口学
国家公园
生态学
动物
进化生物学
人口
内分泌学
社会学
计算机科学
程序设计语言
作者
Brian M. Wood,Jacob D. Negrey,Janine L. Brown,Tobias Deschner,Melissa Emery Thompson,Sholly Gunter,John C. Mitani,David P. Watts,Kevin E. Langergraber
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2023-10-27
卷期号:382 (6669)
被引量:1
标识
DOI:10.1126/science.add5473
摘要
Among mammals, post-reproductive life spans are currently documented only in humans and a few species of toothed whales. Here we show that a post-reproductive life span exists among wild chimpanzees in the Ngogo community of Kibale National Park, Uganda. Post-reproductive representation was 0.195, indicating that a female who reached adulthood could expect to live about one-fifth of her adult life in a post-reproductive state, around half as long as human hunter-gatherers. Post-reproductive females exhibited hormonal signatures of menopause, including sharply increasing gonadotropins after age 50. We discuss whether post-reproductive life spans in wild chimpanzees occur only rarely, as a short-term response to favorable ecological conditions, or instead are an evolved species-typical trait as well as the implications of these alternatives for our understanding of the evolution of post-reproductive life spans.
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