DOI: 10.1111/ele.12865
Scopus记录号: 2-s2.0-85031724524
论文题名: Biodiversity and ecosystem functioning in food webs: the vertical diversity hypothesis
作者: Wang S. ; Brose U.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2018
卷: 21, 期: 1 起始页码: 9
结束页码: 20
语种: 英语
英文关键词: allometry
; complex food webs
; ecological pyramids
; nutrient supply
; nutrient uptake
; primary production
; size distribution
; trophic level
; vertical diversity
Scopus关键词: allometry
; biodiversity
; body size
; community structure
; complexity
; ecological modeling
; ecosystem function
; food web
; nutrient dynamics
; nutrient uptake
; plant
; primary production
; size distribution
; species diversity
; trophic level
英文摘要: One challenge in merging community and ecosystem ecology is to integrate the complexity of natural multitrophic communities into concepts of ecosystem functioning. Here, we combine food-web and allometry theories to demonstrate that primary production, as measured by the total nutrient uptake of the multitrophic community, is determined by vertical diversity (i.e. food web's maximum trophic level) and structure (i.e. distributions of species and their abundances and metabolic rates across trophic levels). In natural ecosystems, the community size distribution determines all these vertical patterns and thus the total nutrient uptake. Our model suggests a vertical diversity hypothesis (VDH) for ecosystem functioning in complex food webs. It predicts that, under a given nutrient supply, the total nutrient uptake increases exponentially with the maximum trophic level in the food web and it increases with its maximum body size according to a power law. The VDH highlights the effect of top–down regulation on plant nutrient uptake, which complements traditional paradigms that emphasised the bottom–up effect of nutrient supply on vertical diversity. We conclude that the VDH contributes to a synthetic framework for understanding the relationship between vertical diversity and ecosystem functioning in food webs and predicting the impacts of global changes on multitrophic ecosystems. © 2017 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/107515
Appears in Collections: 气候减缓与适应
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作者单位: EcoNetLab, German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany; Institute of Biodiversity, Friedrich Schiller University Jena, Jena, Germany; Department of Ecology, College of Urban and Environmental Science, Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, China
Recommended Citation:
Wang S.,Brose U.. Biodiversity and ecosystem functioning in food webs: the vertical diversity hypothesis[J]. Ecology Letters,2018-01-01,21(1)