在一个多雄性灵长类社会中,真正的父亲关怀
Jason C Buchan1, Susan C Alberts, Joan B Silk
1Department of Biology, Duke University, Box 90338, Durham, North Carolina 27708, USA.
Nature
|September 12, 2003
概括
雄性通过在冲突中选择性地支持自己的后代来提供父母的照顾. 这种行为,包括帮助获得等级和保护,证实了真正的父亲对萨凡纳 (Papio cynocephalus) 的投资.
科学领域:
- 灵长类动物的行为
- 进化生物学 进化生物学
- 哺乳动物繁殖 哺乳动物繁殖
背景情况:
- 在哺乳动物中,男性父母的照顾是不常见的,但在cercopithecine灵长类灵长类中观察到.
- 雄性灵长类动物通过理,携带和保护来提供护理,但对自己后代的选择性投资是有争议的.
- 以前的研究表明,雄性保护可能的后代免受婴儿杀害,但在社会争端中没有选择性护理.
研究的目的:
- 为了确定雄性萨凡纳 (Papio cynocephalus) 是否选择性地将照顾指向他们自己的后代.
- 调查男性在激烈争议中的支持是否构成真正的父母关怀与健身福利.
主要方法:
- 确立了75只幼年萨凡纳的父亲身份.
- 收集了关于成年男性在涉及青少年的激烈争端中干预的数据.
- 根据成年男性和青少年之间的关系,分析了男性的护理.
主要成果:
- 成年雄性萨凡纳区分他们自己的后代与无关的幼.
- 雄性选择性地干预了痛苦的争端,以支持自己的后代.
- 这种在争议中的选择性支持被提出为一种真正的父母关怀的形式.
结论:
- 雄性萨凡纳通过在社会冲突中选择性地支持其后代来表现出真正的父母关怀.
- 这种选择性护理可能会提高后代的生存率,等级获得和整体健康.
- 这些发现挑战了关于父对多雄多雌灵长类群体的有限投资的先前假设.
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