类动物的迁徙是否通过文化传播? 转移动物的社会学习证据
Brett R Jesmer1,2, Jerod A Merkle2, Jacob R Goheen3
1Program in Ecology, Department of Zoology and Physiology, University of Wyoming, Laramie, WY 82071, USA. bjesmer@uwyo.edu.
概括
类动物的迁徙,就像大角羊和一样,是通过学习的行为和食知识的文化传播而演变的. 这种学习过程对于追踪季节性植物供应和保持迁移模式至关重要.
科学领域:
- 生态学
- 动物的行为
- 进化生物学
背景情况:
- 类动物的迁徙往往归因于关于季节性料分布的学习信息,但缺乏经验证据.
- 了解迁徙的演变是保护工作的关键.
研究的目的:
- 测试学习和文化传播驱动类动物迁徙的假设.
- 为了比较已建立和新迁移的人口的迁移.
主要方法:
- 历史上的大角羊和驼群体与新息地转移的个体进行了比较.
- 在迁移的群体中观察到几十年来迁移倾向的变化.
主要成果:
- 与历史人口相比,转移的类动物最初表现出较低的迁徙行为.
- 几十年来,迁移的人口发展出迁移行为,学会追踪季节性料 (绿色浪潮).
结论:
- 学习和文化传播是类动物迁徙进化的主要驱动力.
- 迁移的损失可能导致关键生态知识的损失和人口数量的减少.
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