气候变化领域集成服务门户(CCPortal): When things don't add up: quantifying impacts of multiple stressors from individual metabolism to ecosystem processing

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DOI	10.1111/ele.12923
	When things don't add up: quantifying impacts of multiple stressors from individual metabolism to ecosystem processing
	Galic N.; Sullivan L.L.; Grimm V.; Forbes V.E.
发表日期	2018
ISSN	1461023X
卷号	21 期号:4
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
英文关键词	Antagonism; detritivores; ecosystem services; energy budgets; individual-based model; population dynamics; stressor interactions; synergism
语种	英语
scopus关键词	fresh water; Amphipoda; animal; biomass; ecosystem; river; Amphipoda; Animals; Biomass; Ecosystem; Fresh Water; Rivers
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/121340
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, 04318, Germany; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, Leipzig, 04103, Germany
推荐引用方式 GB/T 7714	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],2018,21(4).
APA	Galic N.,Sullivan L.L.,Grimm V.,&Forbes V.E..(2018).When things don't add up: quantifying impacts of multiple stressors from individual metabolism to ecosystem processing.Ecology Letters,21(4).
MLA	Galic N.,et al."When things don't add up: quantifying impacts of multiple stressors from individual metabolism to ecosystem processing".Ecology Letters 21.4(2018).