| DOI: | 10.1111/ele.13489
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| 论文题名: | Enemies with benefits: integrating positive and negative interactions among terrestrial carnivores |
| 作者: | Prugh L.R.; Sivy K.J.
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| 刊名: | Ecology Letters
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| ISSN: | 1461023X
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| 出版年: | 2020
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| 卷: | 23, 期:5 | | 起始页码: | 902
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| 结束页码: | 918
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| 语种: | 英语
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| 中文关键词: | Carcass
; carrion
; cascade
; fatal attraction
; interspecific killing
; intraguild predation
; mesocarnivore
; mesopredator
; meta-analysis
; scavenging
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| 英文关键词: | abundance
; carnivore
; carrion
; competition (ecology)
; ecosystem service
; facilitation
; intraguild predation
; kleptoparasitism
; mortality
; predation risk
; scavenging (feeding)
; sympatry
; ungulate
; Ungulata
; animal
; Carnivora
; ecosystem
; fish
; food chain
; predation
; Animals
; Carnivora
; Ecosystem
; Fishes
; Food Chain
; Predatory Behavior
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| 英文摘要: | Interactions among terrestrial carnivores involve a complex interplay of competition, predation and facilitation via carrion provisioning, and these negative and positive pathways may be closely linked. Here, we developed an integrative framework and synthesized data from 256 studies of intraguild predation, scavenging, kleptoparisitism and resource availability to examine global patterns of suppression and facilitation. Large carnivores were responsible for one third of mesocarnivore mortality (n = 1,581 individuals), and intraguild mortality rates were superadditive, increasing from 10.6% to 25.5% in systems with two vs. three large carnivores. Scavenged ungulates comprised 30% of mesocarnivore diets, with larger mesocarnivores relying most heavily on carrion. Large carnivores provided 1,351 kg of carrion per individual per year to scavengers, and this subsidy decreased at higher latitudes. However, reliance on carrion by mesocarnivores remained high, and abundance correlations among sympatric carnivores were more negative in these stressful, high-latitude systems. Carrion provisioning by large carnivores may therefore enhance suppression rather than benefiting mesocarnivores. These findings highlight the synergistic effects of scavenging and predation risk in structuring carnivore communities, suggesting that the ecosystem service of mesocarnivore suppression provided by large carnivores is strong and not easily replaced by humans. © 2020 John Wiley & Sons Ltd/CNRS |
| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/166698
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| Appears in Collections: | 气候变化与战略
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作者单位: | School of Environmental and Forest Sciences, University of Washington, Seattle, WA 98195, United States
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| Recommended Citation: | |
Prugh L.R.,Sivy K.J.. Enemies with benefits: integrating positive and negative interactions among terrestrial carnivores[J]. Ecology Letters,2020-01-01,23(5)
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