大型食肉动物的食方式能够抵御人类的干扰
Justin G Clapp1,2,3, Justin Binfet4, Cade B Bowlin5
1Haub School of Environment and Natural Resources, University of Wyoming, Laramie, WY 82072, USA.
Proceedings. Biological sciences
|October 29, 2025
概括
山狮 (Puma concolor) 显示出令人惊的行为灵活性,以应对人类在食地点的干扰. 尽管遭遇的次数增加了,但它们的回归率很高,并适应了食策略,表明了复杂的反捕食者反应.
科学领域:
- 生态生态学 生态生态学
- 野生动物行为 野生动物行为
- 保护生物学 保护生物学
背景情况:
- 人类引起的干扰对野生种群,特别是陆地食肉动物产生重大影响,在那里,人类引起的死亡率往往超过自然率.
- 作为对人类存在的反应,食肉动物的行为转变可以触发热量级流,通过空间使用和掠食率的变化改变生态系统动态.
- 了解这些行为反应对于有效的野生动物管理和保护策略至关重要.
研究的目的:
- 为了评估山狮 (Puma concolor) 在食地点直接与人类相遇的行为反应.
- 为了研究山狮如何调整它们的食行为和地点忠实性,以应对不同程度的人类干扰.
- 探索这些行为适应对食肉动物健康和生态系统健康的影响.
主要方法:
- 采用了一种方法,包括在美国怀俄明州中部的山狮养场地直接观察人类遭遇.
- 量化山狮在食地点的时间预算,干扰后的返回率和食率.
- 分析了人类累积干扰和山狮返回食地点的概率之间的相关性.
主要成果:
- 与预期相反,山狮在养场所表现出延长时间预算和高回归率 (>80%) 在干扰后.
- 观察到养率显著下降,这表明在与人接触时需要适应以最大限度地降低风险.
- 行为灵活性是显而易见的,增加的累积干扰与返回养地点的可能性正相关.
结论:
- 山狮表现出国家依赖的反捕食者反应,以一种可能不仅仅依赖于避免的方式适应人类干扰的行为.
- 观察到的行为灵活性表明,复杂的决策过程影响了食肉动物的健康状况和人类改变的景观中的资源利用.
- 需要进一步的研究才能充分理解这些适应性行为的长期健康后果及其更广泛的生态影响.
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