超越阿尔法:灵长类多层次社会中的外对父性和男性繁殖成功
Fan Wu1, Jia Liu1, Derek W Dunn1
1Shaanxi Key Laboratory for Animal Conservation, College of Life Sciences Northwest University Xi'an Shaanxi China.
Ecology and evolution
|July 9, 2025
概括
在金鼻中,领导男性的任期长度,而不仅仅是等级,决定了长期的繁殖成功. 在这个复杂的灵长类社会中,外对交配对雄性和雌性都有好处.
科学领域:
- 灵长类的社会行为
- 进化生物学 进化生物学
- 行为生态学 行为生态学
背景情况:
- 在社会哺乳动物中,男性的生殖成功往往取决于主导地位和任期.
- 额外的配对和女性选择可以显著改变父亲的模式.
- 在复杂的社会系统中,有限的研究已经检查了男性地位,职权和女性策略对长期生殖成功的综合影响.
研究的目的:
- 为了研究领导男性的地位和任期如何影响金色鼻的繁殖成功.
- 分析单位内和单位外父权在确定长期生殖结果中的作用.
- 了解男性社会动态和女性交配策略对父权的联合影响.
主要方法:
- 从金鼻 (Rhinopithecus roxellana) 的一个自由散居的种群收集纵向的人口和遗传数据.
- 对父权模式的分析,包括单位内和单位外的后代.
- 统计建模,以评估领导男性等级和任期长度对生殖成功的影响.
主要成果:
- 高等级与单位内短期的父权有积极的相关性.
- 任期长度是长期生殖成功的更强有力的预测因素,影响单位内和单位外父权.
- 雌性可以通过减少婴儿杀戮风险和获得资源访问或从雄性可用性中获得间接利益来受益于额外对交配.
结论:
- 持有时间对于雄性黄金鼻的长期繁殖成功至关重要.
- 在这种物种中,外对父性是两性共同的生殖策略.
- 这些发现揭示了复杂的灵长类社会中的生殖策略和社会稳定.
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