气候变化领域集成服务门户(CCPortal): Pyramids and cascades: a synthesis of food chain functioning and stability

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DOI	10.1111/ele.13196
	Pyramids and cascades: a synthesis of food chain functioning and stability
	Barbier M.; Loreau M.
发表日期	2019
ISSN	1461023X
卷号	22 期号:2
英文摘要	Food chain theory is one of the cornerstones of ecology, providing many of its basic predictions, such as biomass pyramids, trophic cascades and predator–prey oscillations. Yet, ninety years into this theory, the conditions under which these patterns may occur and persist in nature remain subject to debate. Rather than address each pattern in isolation, we propose that they must be understood together, calling for synthesis in a fragmented landscape of theoretical and empirical results. As a first step, we propose a minimal theory that combines the long-standing energetic and dynamical approaches of food chains. We chart theoretical predictions on a concise map, where two main regimes emerge: across various functioning and stability metrics, one regime is characterised by pyramidal patterns and the other by cascade patterns. The axes of this map combine key physiological and ecological variables, such as metabolic rates and self-regulation. A quantitative comparison with data sheds light on conflicting theoretical predictions and empirical puzzles, from size spectra to causes of trophic cascade strength. We conclude that drawing systematic connections between various existing approaches to food chains, and between their predictions on functioning and stability, is a crucial step in confronting this theory to real ecosystems. © 2018 John Wiley & Sons Ltd/CNRS
英文关键词	Biomass pyramid; food chain theory; metabolic scaling; size spectrum; stability; trophic cascade
语种	英语
scopus关键词	biomass; food chain; landscape; metabolism; physiological response; predator-prey interaction; stabilization; trophic cascade; animal; biomass; ecology; ecosystem; food chain; predation; Animals; Biomass; Ecology; Ecosystem; Food Chain; Predatory Behavior
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/121141
作者单位	Centre for Biodiversity Theory and Modelling, Theoretical and Experimental Ecology Station, UMR 5321, CNRS and Paul Sabatier University, Moulis, 09200, France
推荐引用方式 GB/T 7714	Barbier M.,Loreau M.. Pyramids and cascades: a synthesis of food chain functioning and stability[J],2019,22(2).
APA	Barbier M.,&Loreau M..(2019).Pyramids and cascades: a synthesis of food chain functioning and stability.Ecology Letters,22(2).
MLA	Barbier M.,et al."Pyramids and cascades: a synthesis of food chain functioning and stability".Ecology Letters 22.2(2019).