男性猩猩在资源可用性较高时,更多地利用社会学习机会
Julia Mörchen1,2,3, Frances Luhn2, Olivia Wassmer4
1Development and Evolution of Cognition Research Group, Max Planck Institute of Animal Behavior, 78467 Konstanz, Germany.
iScience
|February 9, 2024
概括
食物的可用性影响着猩猩的社会学习. 当食物充足时,移徙的雄性更容易观察到当地猩猩,这表明生态因素通过社会学习塑造了文化进化.
科学领域:
- 灵长类动物的行为
- 进化人类学 进化人类学
- 认知生态学 认知生态学
背景情况:
- 人类的创新和社会学习促进了对新环境的适应.
- 对创新的生态影响已知,但对社会学习的影响不太了解.
- 社会学习,特别是观察式学习,如同行学习,对于文化传播至关重要.
研究的目的:
- 调查食物供应对移徙猩猩雄性社会学习的影响.
- 为了确定生态因素是否影响猩猩观察性社会学习的速度.
- 为了比较苏门答腊和婆罗洲猩猩种群之间的社会学习率.
主要方法:
- 在18年的时间里,分析了1384个二代性猩猩协会和360个对等事件.
- 观测野生苏门答腊和婆罗洲猩猩的雄性猩猩,包括移民和当地人.
- 统计分析将食物的可用性和接近性与对等率相关联.
主要成果:
- 迁徙的猩猩雄性表现出更高的匹配率与更高的食物可用性.
- 与他人相邻的时间增加也与更高的对等率相关.
- 苏门答腊猩猩的雄性比婆罗洲雄性表现出明显更高的对等率,这表明了人口水平的差异.
结论:
- 食物的可用性是影响猩猩社会学习的重要生态因素.
- 研究结果表明,食物供应对社会学习的内在和/或发育影响.
- 对社会学习的生态影响对于理解跨物种的文化进化至关重要.
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