DOI: 10.1111/ele.12923
Scopus记录号: 2-s2.0-85042156502
论文题名: When things don't add up: quantifying impacts of multiple stressors from individual metabolism to ecosystem processing
作者: Galic N. ; Sullivan L.L. ; Grimm V. ; Forbes V.E.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2018
卷: 21, 期: 4 起始页码: 568
结束页码: 577
语种: 英语
英文关键词: Antagonism
; detritivores
; ecosystem services
; energy budgets
; individual-based model
; population dynamics
; stressor interactions
; synergism
英文摘要: Ecosystems are exposed to multiple stressors which can compromise functioning and service delivery. These stressors often co-occur and interact in different ways which are not yet fully understood. Here, we applied a population model representing a freshwater amphipod feeding on leaf litter in forested streams. We simulated impacts of hypothetical stressors, individually and in pairwise combinations that target the individuals' feeding, maintenance, growth and reproduction. Impacts were quantified by examining responses at three levels of biological organisation: individual-level body sizes and cumulative reproduction, population-level abundance and biomass and ecosystem-level leaf litter decomposition. Interactive effects of multiple stressors at the individual level were mostly antagonistic, that is, less negative than expected. Most population- and ecosystem-level responses to multiple stressors were stronger than expected from an additive model, that is, synergistic. Our results suggest that across levels of biological organisation responses to multiple stressors are rarely only additive. We suggest methods for efficiently quantifying impacts of multiple stressors at different levels of biological organisation. © 2018 John Wiley & Sons Ltd/CNRS Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107468
Appears in Collections: 气候减缓与适应
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作者单位: Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, MN, United States; Department of Ecological Modelling, Helmholtz Centre for Environmental Research—UFZ, Permoserstr. 15, Leipzig, Germany; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, Leipzig, Germany
Recommended Citation:
Galic N.,Sullivan L.L.,Grimm V.,et al. When things don't add up: quantifying impacts of multiple stressors from individual metabolism to ecosystem processing[J]. Ecology Letters,2018-01-01,21(4)