高原鼠兔的风险评估:不同捕食者的行为反应强度不同。

IF 2.2 2区 环境科学与生态学 Q1 Agricultural and Biological Sciences
Wanrong Wei, Qiaoyan Zhen, Zhongmin Tang, Maria K Oosthuizen
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引用次数: 7

摘要

背景:被捕食物种评估捕食者姿势风险的能力对被捕食物种具有重要的适应性优势。为了更好地理解捕食者-猎物之间的相互作用,需要观察更多的物种,以确定当不同类型的捕食者接近时,猎物的行为反应在强度上是如何不同的。高原鼠兔是其分布区域内所有捕食者的猎物。因此,它是研究反捕食者行为的理想物种。本研究以青藏高原东部玛曲县鼠兔为研究对象,采用四种捕食动物模型,研究鼠兔对视觉线索的抵抗行为强度。结果:藏狐、狼、猎隼和大喙鸦暴露后,其飞行起始距离(FID)、躲藏时间和警觉性比例等行为反应指标均存在显著差异。与其他掠食者相比,鼠兔对萨克猎鹰的反应更强烈。结论:鼠兔在暴露于不同的标本捕食者物种模型时,通过改变其行为反应强度(如FID、隐藏时间和警惕性)来达到最佳平衡。我们的结论是鼠兔能够评估它们被捕食的实际风险,并表现出对威胁敏感的行为反应。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Risk assessment in the plateau pika (Ochotona curzoniae): intensity of behavioral response differs with predator species.

Risk assessment in the plateau pika (Ochotona curzoniae): intensity of behavioral response differs with predator species.

Risk assessment in the plateau pika (Ochotona curzoniae): intensity of behavioral response differs with predator species.

Risk assessment in the plateau pika (Ochotona curzoniae): intensity of behavioral response differs with predator species.

Background: The ability of a prey species to assess the risk that a predator poses can have important fitness advantages for the prey species. To better understand predator-prey interactions, more species need to be observed to determine how prey behavioral responses differ in intensity when approached by different types of predators. The plateau pika (Ochotona curzoniae) is preyed upon by all predators occurring in its distribution area. Therefore, it is an ideal species to study anti-predator behavior. In this study, we investigated the intensity of anti-predator behavior of pikas in response to visual cues by using four predator species models in Maqu County on the eastern Qinghai-Tibetan Plateau.

Results: The behavioral response metrics, such as Flight Initiation Distance (FID), the hiding time and the percentage of vigilance were significantly different when exposed to a Tibetan fox, a wolf, a Saker falcon and a large-billed crow, respectively. Pikas showed a stronger response to Saker falcons compared to any of the other predators.

Conclusions: Our results showed that pikas alter their behavioral (such as FID, the hiding time and the vigilance) response intensity to optimally balance the benefits when exposed to different taxidermy predator species models. We conclude that pikas are able to assess their actual risk of predation and show a threat-sensitive behavioral response.

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来源期刊
BMC Ecology
BMC Ecology ECOLOGY-
CiteScore
5.80
自引率
4.50%
发文量
0
审稿时长
22 weeks
期刊介绍: BMC Ecology is an open access, peer-reviewed journal that considers articles on environmental, behavioral and population ecology as well as biodiversity of plants, animals and microbes.
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