globalchange  > 气候变化事实与影响
Scopus记录号: 2-s2.0-85058713310
论文题名:
Pyramids and cascades: a synthesis of food chain functioning and stability
作者: Barbier M.; Loreau M.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2019
卷: 22, 期:2
起始页码: 405
结束页码: 419
语种: 英语
英文关键词: Biomass pyramid ; food chain theory ; metabolic scaling ; size spectrum ; stability ; trophic cascade
Scopus关键词: biomass ; food chain ; landscape ; metabolism ; physiological response ; predator-prey interaction ; stabilization ; trophic cascade
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
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122736
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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

Recommended Citation:
Barbier M.,Loreau M.. Pyramids and cascades: a synthesis of food chain functioning and stability[J]. Ecology Letters,2019-01-01,22(2)
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