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战略性地使用雄性替代繁殖策略,在合作繁殖的带状蒙古群中进行繁殖

Graham Birch¹, Hazel J Nichols², Francis Mwanguhya³

¹Centre for Ecology and Conservation, Faculty of Environment, Science and Economy, University of Exeter, Penryn Campus, Cornwall TR10 9FE, UK.

Royal Society open science

|February 27, 2025

概括

在带带的蒙古斯中,偷偷的繁殖策略是由失去直接竞争的雄性使用的,而不是作为一个跳板. 潜入提供有限的成功,但可能有助于避免近亲繁殖.

科学领域:

行为生态学行为生态学
进化生物学进化生物学
动物行为动物行为

背景情况:

替代生殖策略 (ARTs) 允许竞争力较低的个体通过间接策略进行繁殖.
在合作繁殖群体中很少记录ART,可能是由于观察或社会压制方面的挑战.
在与雄雄激烈竞争的物种中,年轻的雄性可能会使用的策略作为获得繁殖成功和增加资源持有潜力 (RHP) 的脚石.

研究的目的:

为了调查的"鞋"ART在野生雄性带状袋鼠中的利用和影响.
为了确定偷偷的策略是否成为年轻男性的脚石,还是被下属个人使用.

主要方法:

分析长期数据,包括血统,体重,群体人口统计和行为观察.
研究生殖成功和与伴侣守护与潜入策略相关的成本.
检查相对RHP和社会地位在ART的出现中的作用.

主要成果:

潜入策略主要是由被更强大的竞争对手取代的男性所使用的,而不是作为一个脚石.
运动鞋的生长成功率低于伴侣护卫,尽管体重减轻成本相似.
年轻的运动鞋可以接触到年龄较大,更有生育能力的雌性,并可能避免近亲繁殖.

结论:

稳定的社会群体中的ART,就像带状驼一样,可以从个人一生中相对RHP和社会地位的变化中产生.
潜入可能是下属雄性的一种备用策略,提供有限的生殖益处和避免近亲繁殖的潜在优势.
偷偷走的成本和好处影响了它的采用,许多雄性选择完全不进行繁殖,而不是采用这种策略.

关键词:

其他生殖策略的替代生殖策略.合作的育种者合作社.生命史生命史的人生史一个男的男的男的男的男的男选择伴侣选择伴侣选择生殖成本生殖成本

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