气候变化领域集成服务门户(CCPortal): Can biomass distribution across trophic levels predict trophic cascades?

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DOI	10.1111/ele.13658
	Can biomass distribution across trophic levels predict trophic cascades?
	Galiana N.; Arnoldi J.-F.; Barbier M.; Acloque A.; de Mazancourt C.; Loreau M.
发表日期	2021
ISSN	1461023X
起始页码	464
结束页码	476
卷号	24 期号:3
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.
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
语种	英语
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/204391
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
推荐引用方式 GB/T 7714	Galiana N.,Arnoldi J.-F.,Barbier M.,et al. Can biomass distribution across trophic levels predict trophic cascades?[J],2021,24(3).
APA	Galiana N.,Arnoldi J.-F.,Barbier M.,Acloque A.,de Mazancourt C.,&Loreau M..(2021).Can biomass distribution across trophic levels predict trophic cascades?.Ecology Letters,24(3).
MLA	Galiana N.,et al."Can biomass distribution across trophic levels predict trophic cascades?".Ecology Letters 24.3(2021).