动态食策略适应异质环境有助于鼻的社会聚合
Lan Zhao1,2, Sheng-Nan Ji3, Xiao-Bing Du1
1College of Life Sciences, Northwest University, Xi'an, Shaanxi 710069, China.
Zoological research
|December 19, 2023
概括
较大的灵长类动物群体在寒冷,资源稀缺的环境中形成,这是由于合作的好处和动态的食策略. 这挑战了传统的理论,这些理论倾向于为社会聚合提供丰富的息地.
科学领域:
- 灵长类的社会行为.
- 进化生态学的进化生态学
- 环境适应环境适应
背景情况:
- 主流理论将较大的灵长类群体与丰富的粮食资源联系起来.
- 然而,在资源稀缺,高海拔/高度的环境中经常观察到更大的群体.
- 这表明,在异质环境中合作的好处可能会推动小组规模.
研究的目的:
- 为了研究影响社会群体大小的因素,在colobine灵长类动物.
- 测试这样一个假设:在异质环境中,合作有利于更大群体.
- 探索与气候和资源可用性相关的群体规模的进化驱动因素.
主要方法:
- 一项为期六年的实地研究,对两组金色鼻猿 (Rhinopithecus roxellana) 进行了实地研究.
- 分析气候变化的运动,息地选择和资源变化.
- 编制和分析52个鱼物种的生态行为数据集.
主要成果:
- 金鼻展示了动态的食策略,调整移动和息地选择以适应气候和资源的波动.
- 在冬季,较大的群体占据了食物丰富的地区,而旅行距离远远不如较小的群体.
- 对52种鱼种类的分析表明,随着寒冷,异质气候的家庭范围扩大,增加的群体规模可能已经演变.
结论:
- 综合环境异质性的多益框架解释了更大的群体形成.
- 寒冷和多样化的环境需要更大的家庭范围,促进群体间的互动和社会聚合.
- 较大的群体可以提高协作效益和生殖机会,同时通过动态食优化旅行成本.
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