墨西哥南部新热带哺乳动物群落中捕食者和猎物的时空共现

IF 1 4区 环境科学与生态学 Q4 ECOLOGY
R. E. Galindo-Aguilar, B. Luna-Olivera, Marcelino Ramírez-Ibáñez, M. Lavariega
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引用次数: 4

摘要

捕食者-猎物相互作用是构建生物群落的重要机制,是生态学的中心主题之一。在捕食者-猎物系统中,迫害和回避行为对生态系统动力学的影响不亚于营养相互作用。本研究旨在分析墨西哥南部一个大中型哺乳动物群落中猎物和捕食者的时空共现现象。我们预测猎物会避开捕食者之前经过的地方。相反,我们期望捕食者的搜索行为和它们之间活动模式的同步。我们发现猎物不会在掠食者经过的时间或空间中出现,这表明了一种回避行为。与我们的预期相反,我们没有发现从捕食者到猎物的显著搜索行为。捕食者与猎物的日重叠时间同步性(Δ = 0.77 ~ 0.82)高于捕食者与猎物的日重叠时间同步性(Δ = 0.43 ~ 0.81)。结果表明,猎物感知到被捕食的风险,并在空间和时间上表现出回避行为,这与恐惧理论一致。该研究为了解捕食者和猎物之间的行为机制提供了一种补充方法,通过相机捕获或类似的时空共现数据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Spatiotemporal co-occurrence of predators and prey in a neotropical mammal community in southern Mexico
Predator-prey interactions are one of the central themes in ecology due to their importance as a key mechanism in structuring biotic communities. In the predator-prey systems, the behaviours of persecution and avoidance impact on the ecosystem dynamics as much as the trophic interactions. We aimed to analyse the spatiotemporal co-occurrences between prey and predators in a community of medium- and large-sized mammals in southern Mexico. We predict prey will avoid sites where a predator previously passed. Contrarily, we expect a search behaviour by predators and a synchronization in activity patterns among them. We found prey does not occur either in time or space where predators have passed, suggesting an avoidance behaviour. Contrary to our expectations, we did not find significant search behaviours from predators to prey. Synchronization in the daily temporal overlap between predators was higher (Δ = 0.77–0.82) than with their prey (Δ = 0.43 – 0.81). The results suggest prey perceives the risk of predation and displays avoidance behaviour both spatially and temporally, which is consistent with the fear theory. This study provides a complementary approach to understanding the behaviour mechanism between predators and prey through camera-trapping or similar data of spatiotemporal co-occurrences.
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来源期刊
Journal of Tropical Ecology
Journal of Tropical Ecology 环境科学-生态学
CiteScore
2.10
自引率
0.00%
发文量
44
审稿时长
18-36 weeks
期刊介绍: Journal of Tropical Ecology aims to address topics of general relevance and significance to tropical ecology. This includes sub-disciplines of ecology, such as conservation biology, evolutionary ecology, marine ecology, microbial ecology, molecular ecology, quantitative ecology, etc. Studies in the field of tropical medicine, specifically where it involves ecological surroundings (e.g., zoonotic or vector-borne disease ecology), are also suitable. We also welcome methods papers, provided that the techniques are well-described and are of broad general utility. Please keep in mind that studies focused on specific geographic regions or on particular taxa will be better suited to more specialist journals. In order to help the editors make their decision, in your cover letter please address the specific hypothesis your study addresses, and how the results will interest the broad field of tropical ecology. While we will consider purely descriptive studies of outstanding general interest, the case for them should be made in the cover letter.
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