气候变化领域集成服务门户(CCPortal): On the sensitivity of food webs to multiple stressors

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DOI	10.1111/ele.13841
	On the sensitivity of food webs to multiple stressors
	Beauchesne D.; Cazelles K.; Archambault P.; Dee L.E.; Gravel D.
发表日期	2021
ISSN	1461023X
英文摘要	Evaluating the effects of multiple stressors on ecosystems is becoming increasingly vital with global changes. The role of species interactions in propagating the effects of stressors, although widely acknowledged, has yet to be formally explored. Here, we conceptualise how stressors propagate through food webs and explore how they affect simulated three-species motifs and food webs of the Canadian St. Lawrence System. We find that overlooking species interactions invariably underestimate the effects of stressors, and that synergistic and antagonistic effects through food webs are prevalent. We also find that interaction type influences a species’ susceptibility to stressors; species in omnivory and tri-trophic food chain interactions in particular are sensitive and prone to synergistic and antagonistic effects. Finally, we find that apex predators were negatively affected and mesopredators benefited from the effects of stressors due to their trophic position in the St. Lawrence System, but that species sensitivity is dependent on food web structure. In conceptualising the effects of multiple stressors on food webs, we bring theory closer to practice and show that considering the intricacies of ecological communities is key to assess the net effects of stressors on species. © 2021 John Wiley & Sons Ltd.
关键词	antagonism cumulative effects ecological networks food webs holistic indirect effects motifs multiple stressors non-additive effects synergism
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/204330
作者单位	Département de biologie, ArcticNet, Québec Océan, Université Laval, Québec, QC, Canada; Institut des sciences de la mer, Université du Québec à Rimouski, Rimouski, QC, Canada; Department of Integrative Biology, University Of Guelph, Guelph, ON, Canada; Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO, United States; Département de biologie, Université de Sherbrooke, Sherbrooke, QC, Canada
推荐引用方式 GB/T 7714	Beauchesne D.,Cazelles K.,Archambault P.,et al. On the sensitivity of food webs to multiple stressors[J],2021.
APA	Beauchesne D.,Cazelles K.,Archambault P.,Dee L.E.,&Gravel D..(2021).On the sensitivity of food webs to multiple stressors.Ecology Letters.
MLA	Beauchesne D.,et al."On the sensitivity of food webs to multiple stressors".Ecology Letters (2021).