Scopus记录号: 2-s2.0-85061431984
论文题名: Stability of grassland production is robust to changes in the consumer food web
作者: Kohli M. ; Borer E.T. ; Kinkel L. ; Seabloom E.W.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2019
卷: 22, 期: 4 起始页码: 707
结束页码: 716
语种: 英语
英文关键词: Biodiversity loss
; consumer effects
; ecosystem functioning
; ecosystem stability
; plant–herbivore interaction
; plant–pathogen interaction
Scopus关键词: Arthropoda
; Fungi
; Vertebrata
英文摘要: Theory predicts that consumers may stabilise or destabilise plant production depending on model assumptions, and tests in aquatic food webs suggest that trophic interactions are stabilising. We quantified the effects of trophic interactions on temporal variability (standard deviation) and temporal stability (mean/standard deviation) of grassland biomass production and the plant diversity–stability relationship by experimentally removing heterotrophs (large vertebrates, arthropods, foliar and soil fungi) from naturally and experimentally assembled grasslands of varying diversity. In both grassland types, trophic interactions proportionately decreased plant community biomass mean and variability over the course of 6 years, leading to no net change in temporal stability or the plant diversity–stability relationship. Heterotrophs also mediated plant coexistence; their removal reduced diversity in naturally assembled grasslands. Thus, herbivores and fungi reduce biomass production, concurrently reducing the temporal variability of energy and material fluxes. Because of this coupling, grassland stability is robust to large food web perturbations. © 2019 John Wiley & Sons Ltd/CNRS 资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122705
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Ecology, Evolution and Behavior, University of Minnesota, Twin Cities, MN, United States; Department of Plant Pathology, University of Minnesota, Twin Cities, MN, United States
Recommended Citation:
Kohli M.,Borer E.T.,Kinkel L.,et al. Stability of grassland production is robust to changes in the consumer food web[J]. Ecology Letters,2019-01-01,22(4)