DOI: 10.1111/ele.13658
论文题名: Can biomass distribution across trophic levels predict trophic cascades?
作者: Galiana N. ; Arnoldi J.-F. ; Barbier M. ; Acloque A. ; de Mazancourt C. ; Loreau M.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
卷: 24, 期: 3 起始页码: 464
结束页码: 476
语种: 英语
中文关键词: Biomass ratio
; consumer-resource dynamics
; food chain
; food web
; perturbation
; response amplification
; self-regulation
英文关键词: biomass
; ecological approach
; empirical analysis
; food chain
; literature review
; mesocosm
; trophic level
; biomass
; ecosystem
; food chain
; Biomass
; Ecosystem
; Food Chain
英文摘要: The biomass distribution across trophic levels (biomass pyramid) and cascading responses to perturbations (trophic cascades) are archetypal representatives of the interconnected set of static and dynamical properties of food chains. A vast literature has explored their respective ecological drivers, sometimes generating correlations between them. Here we instead reveal a fundamental connection: both pyramids and cascades reflect the dynamical sensitivity of the food chain to changes in species intrinsic rates. We deduce a direct relationship between cascades and pyramids, modulated by what we call trophic dissipation – a synthetic concept that encodes the contribution of top-down propagation of consumer losses in the biomass pyramid. Predictable across-ecosystem patterns emerge when systems are in similar regimes of trophic dissipation. Data from 31 aquatic mesocosm experiments demonstrate how our approach can reveal the causal mechanisms linking trophic cascades and biomass distributions, thus providing a road map to deduce reliable predictions from empirical patterns. © 2020 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166832
Appears in Collections: 气候变化与战略
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作者单位: Theoretical and Experimental Ecology Station, CNRS, Moulis, 09200, France; Zoology Department, School of Natural Sciences, Trinity College Dublin, The University of Dublin, Ireland
Recommended Citation:
Galiana N.,Arnoldi J.-F.,Barbier M.,et al. Can biomass distribution across trophic levels predict trophic cascades?[J]. Ecology Letters,2021-01-01,24(3)