气候变化领域集成服务门户(CCPortal): Enemies with benefits: integrating positive and negative interactions among terrestrial carnivores

CCPortal

DOI	10.1111/ele.13489
	Enemies with benefits: integrating positive and negative interactions among terrestrial carnivores
	Prugh L.R.; Sivy K.J.
发表日期	2020
ISSN	1461023X
起始页码	902
结束页码	918
卷号	23 期号:5
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
关键词	Carcass carrion cascade fatal attraction interspecific killing intraguild predation mesocarnivore mesopredator meta-analysis scavenging
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
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204276
作者单位	School of Environmental and Forest Sciences, University of Washington, Seattle, WA 98195, United States
推荐引用方式 GB/T 7714	Prugh L.R.,Sivy K.J.. Enemies with benefits: integrating positive and negative interactions among terrestrial carnivores[J],2020,23(5).
APA	Prugh L.R.,&Sivy K.J..(2020).Enemies with benefits: integrating positive and negative interactions among terrestrial carnivores.Ecology Letters,23(5).
MLA	Prugh L.R.,et al."Enemies with benefits: integrating positive and negative interactions among terrestrial carnivores".Ecology Letters 23.5(2020).