DOI: 10.1111/ele.13841
论文题名: On the sensitivity of food webs to multiple stressors
作者: Beauchesne D. ; Cazelles K. ; Archambault P. ; Dee L.E. ; Gravel D.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
语种: 英语
中文关键词: antagonism
; cumulative effects
; ecological networks
; food webs
; holistic
; indirect effects
; motifs
; multiple stressors
; non-additive effects
; synergism
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166771
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
Beauchesne D.,Cazelles K.,Archambault P.,et al. On the sensitivity of food webs to multiple stressors[J]. Ecology Letters,2021-01-01