在人类干扰下捕食者-猎物时间区分:一个元分析
Eamonn I F Wooster1, Erick J Lundgren2, Dale G Nimmo3
1Gulbali Institute, School of Agricultural, Environmental and Veterinary Sciences, Charles Sturt University, Albury, NSW, Australia. eif.wooster@gmail.com.
Nature communications
|February 3, 2026
概括
人类的干扰会改变动物的行为,但其对物种重叠的影响取决于身体大小. 较大的下属物种面对较大的主导物种增加重叠,而较大的主导物种减少重叠.
科学领域:
- 生态生态学 生态生态学
- 行为生态学 行为生态学
- 保护生物学 保护生物学
背景情况:
- 人类活动在全球范围内显著影响野生动物的行为.
- 由于人类的干扰,日常活动模式的变化可能会破坏捕食者-猎物相互作用和时间利基分区.
- 了解这些行为变化对于预测生态系统稳定性至关重要.
研究的目的:
- 调查人类干扰对哺乳动物捕食者-猎物和内捕食者双的迪尔活动和时间重叠的全球影响.
- 确定物种体质比如何影响时间重叠对人类干扰的反应.
主要方法:
- 使用来自57项研究的数据进行了全球元分析.
- 这项研究分析了480种哺乳动物的捕食者-猎物和内的捕食者双.
- 采用统计方法来评估人类干扰和体重比对神经活动和时间重叠的影响.
主要成果:
- 总的来说,人类的干扰并没有显著影响相互作用物种之间的时间重叠.
- 人类干扰对时间重叠的影响取决于主导物种和附属物种之间的体重比.
- 当附属物种更大时,人类的干扰导致时间被压缩 (增加重叠);当主导物种更大时,导致时间扩大 (减少重叠).
结论:
- 较大体型的哺乳动物似乎受到人类干扰的影响不成比例,经历了改变的时间利基动态.
- 大型捕食者面临着与猎物减少的重叠,而大型猎物面临着在人类干扰下与捕食者增加的重叠.
- 持续的人类扩张可能会继续重塑动物的时间,影响物种相互作用,人口动态,社区结构和进化.
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