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人类改造景观中研究不足的食肉动物的集团内动态

Intraguild dynamics of understudied carnivores in a human-altered landscape.

作者信息

Easter Tara, Bouley Paola, Carter Neil

机构信息

School for Environment and Sustainability University of Michigan Ann Arbor MI USA.

Gorongosa National Park Chitengo Mozambique.

出版信息

Ecol Evol. 2020 Apr 27;10(12):5476-5488. doi: 10.1002/ece3.6290. eCollection 2020 Jun.

DOI:10.1002/ece3.6290
PMID:32607168
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7319246/
Abstract

Mesocarnivores constitute a diverse and often abundant group of species, which are increasingly occupying hweigher trophic levels within multi-use landscapes. Yet, we know relatively little about their interactions with each other, especially in human-altered areas. Using camera trap data collected in a forestry concession in the Greater Gorongosa ecosystem of central Mozambique, we examined the spatiotemporal relationships and potential for intraguild competition among three understudied African carnivores: African civets (), bushy-tailed mongooses (), and large-spotted genets (). After accounting for habitat preferences and tolerance to anthropogenic factors, we found that African civets and bushy-tailed mongooses avoid each other spatially and temporally. Additionally, civets and mongooses were also both more likely to use sites farther away from human settlements, possibly decreasing the total available habitat for each species if competition is driving this spatial partitioning. In contrast, we did not find evidence for spatial or temporal partitioning between large-spotted genets and African civets, but bushy-tailed mongooses altered their activity patterns where they co-occurred with genets. Our study contributes to scant ecological knowledge of these mesocarnivores and adds to our understanding of community dynamics in human-altered ecosystems.

摘要

中食肉动物构成了一个多样且通常数量丰富的物种群体,它们在多用途景观中越来越多地占据较高的营养级。然而,我们对它们彼此之间的相互作用了解相对较少,尤其是在人类改变的区域。利用在莫桑比克中部大戈龙戈萨生态系统的一个林业特许权区域收集的相机陷阱数据,我们研究了三种研究较少的非洲食肉动物之间的时空关系和种内竞争潜力:非洲灵猫、蓬松尾獴和大斑獴。在考虑了栖息地偏好和对人为因素的耐受性之后,我们发现非洲灵猫和蓬松尾獴在空间和时间上相互回避。此外,灵猫和獴也都更有可能使用远离人类定居点的地点,如果竞争导致这种空间划分,可能会减少每个物种的总可用栖息地。相比之下,我们没有发现大斑獴和非洲灵猫之间存在空间或时间划分的证据,但蓬松尾獴在与獴共存的地方改变了它们的活动模式。我们的研究为这些中食肉动物稀缺的生态知识做出了贡献,并增进了我们对人类改变的生态系统中群落动态的理解。

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Trends Ecol Evol. 2019 Apr;34(4):355-368. doi: 10.1016/j.tree.2019.01.004. Epub 2019 Feb 8.
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莫桑比克戈龙戈萨国家公园中食肉动物间有限的时空生态位划分
Ecol Evol. 2024 Feb 15;14(2):e10965. doi: 10.1002/ece3.10965. eCollection 2024 Feb.
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Understanding carnivore interactions in a cold arid trans-Himalayan landscape: What drives co-existence patterns within predator guild along varying resource gradients?了解寒冷干旱的跨喜马拉雅地区食肉动物的相互作用:是什么驱动了捕食者群落中沿不同资源梯度的共存模式?
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Temporal Response of Mesocarnivores to Human Activity and Infrastructure in Taihang Mountains, Central North China: Shifts in Activity Patterns and Their Overlap.华北中部太行山地区中型食肉动物对人类活动和基础设施的时间响应:活动模式的变化及其重叠
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