野生巴厘岛长尾 (Macaca fascicularis fascicularis) 决策中的性别和年龄差异面临风险:一项实地实验研究
Caleb Bunselmeyer1, Noëlle Gunst1, I Nengah Wandia2
1Department of Psychology, Faculty of Arts & Science, University of Lethbridge, Lethbridge, AB T1K3M4, Canada.
Animals : an open access journal from MDPI
|February 27, 2026
概括
巴厘岛表现出各种风险行为,年龄和性别影响选择. 青春期的子表现出灵活的学习,根据先前的结果做出适应的选择.
科学领域:
- 行为生态学 行为生态学
- 灵长类的认知能力
- 动物行为 动物行为
背景情况:
- 关于灵长类动物决策的研究往往忽视了个体差异,专注于被囚禁的种群.
- 了解野生灵长类动物的风险偏好对于生态和进化见解至关重要.
研究的目的:
- 为了调查在巴厘岛长尾群体中自由活动的危险决策.
- 检查年龄和性别如何影响个人风险偏好.
- 探索青少年的风险承担中的潜在学习策略.
主要方法:
- 对33只不同年龄,性别等级的进行了选择任务.
- 这个任务在保证小奖励和概率较大的奖励之间进行了权衡.
- 根据年龄,性别和以前的结果,分析了个人的选择.
主要成果:
- 在群体层面上,没有显示出对安全或风险选择的总体偏好.
- 观察到风险承担的个体差异很大,有些人容易冒风险,有些人不愿冒风险.
- 年龄和性别相互影响,男性和女性年龄类别之间的风险倾向模式不同. 未成年人表现出"赢-留"的策略,在先前的成功之后增加了冒险的选择.
结论:
- 在巴厘岛的中,风险偏好的个体变化很大,受年龄和性别的影响.
- 青少年象表现出适应性学习,根据结果调整风险承担,可能反映出发育过渡.
- 人口因素对于全面了解灵长类动物类型风险偏好至关重要.
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