在道路附近的高原皮卡在面对潜在的捕食者时是大胆而沉默的
Bicheng Zhu1, Jiapeng Qu2,3, Jianguo Cui1
1CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China.
Current zoology
|August 28, 2023
概括
道路交通显著影响野生动物警报行为. 在道路附近的高原皮卡表现出警,容忍和警报的减少,这表明它们对人类干扰的反应更大胆,更安静.
科学领域:
- 野生动物生态学野生动物生态学
- 行为生态学 行为生态学
- 保护生物学 保护生物学
背景情况:
- 人类干扰,特别是道路交通,对野生动物的生存构成重大威胁.
- 警报行为对于动物的生存至关重要,但重复道路交通暴露的长期影响仍未得到充分研究.
- 之前的研究集中在警距离上,忽视了警报对野生动物对交通反应的作用.
研究的目的:
- 评估道路交通对高原皮卡 (Ochotona curzoniae) 警报行为的影响.
- 调查暴露在不同级别的道路交通中的皮卡的警觉,容忍距离和报警频率的变化.
- 了解公路的接近如何影响反掠食者反应和潜在的长期健康后果.
主要方法:
- 观察性研究比较高原皮卡接近和远离道路,当暴露于模拟的捕食者.
- 对皮卡的量化警和容忍距离与它们与道路和洞穴的距离有关.
- 记录和分析了不同交通暴露水平下的皮卡产生的警报频率.
主要成果:
- 靠近道路的皮卡与更远的地方相比,表现出明显更短的警和容忍距离.
- 靠近道路的高原皮卡比安静地区的皮卡更少发出警报.
- 警和容忍距离都与从皮卡洞穴到道路的距离正相关.
结论:
- 道路交通改变了高原皮卡的反捕食者行为,导致公路附近的个人更大胆,声音更低.
- 对道路交通的重复暴露塑造了野生动物的警报行为,可能会影响生存和健康.
- 城市化带来的野生动物行为变化需要进一步研究它们的长期生态后果.
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