气候变化领域集成服务门户(CCPortal): Herbivore consumers face different challenges along opposite sides of the stoichiometric knife-edge

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DOI	10.1111/ele.13386
	Herbivore consumers face different challenges along opposite sides of the stoichiometric knife-edge
	Zhou L.; Declerck S.A.J.
发表日期	2019
ISSN	1461023X
卷号	22 期号:12
英文摘要	Anthropogenic activities have reshaped the relative supply rates of essential elements to organisms. Recent studies suggested that consumer performance is strongly reduced by food that is either very high or very low in relative phosphorus content. However, the generality of such ‘stoichiometric knife-edge’ and its underlying mechanisms are poorly understood. We studied the response of a planktonic rotifer to a 10-fold food carbon : phosphorus (C : P) gradient and confirmed the existence of the stoichiometric knife-edge. Interestingly, we observed a complete homeostatic breakdown associated with strong growth reductions at high food C : P. In contrast, at low food C : P, animals maintained homeostasis despite pronounced performance reductions. Our results suggest that the mechanisms underlying adverse effects of stoichiometric imbalance are determined by both the identity of elements that are limiting and those that are present in excess. Negative effects of excess P reveal an additional way of how eutrophication may affect consumers. © 2019 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd.
英文关键词	Brachionus calyciflorus; carbon to phosphorus ratio; compensatory feeding; ecological stoichiometry; elemental homeostasis; homeostatic breakdown; phosphorus metabolism; rotifera; zooplankton
语种	英语
scopus关键词	Animalia; Brachionus calyciflorus; Rotifera; carbon; phosphorus; animal; herbivory; Rotifera; Animals; Carbon; Herbivory; Phosphorus; Rotifera
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/121006
作者单位	Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, Netherlands
推荐引用方式 GB/T 7714	Zhou L.,Declerck S.A.J.. Herbivore consumers face different challenges along opposite sides of the stoichiometric knife-edge[J],2019,22(12).
APA	Zhou L.,&Declerck S.A.J..(2019).Herbivore consumers face different challenges along opposite sides of the stoichiometric knife-edge.Ecology Letters,22(12).
MLA	Zhou L.,et al."Herbivore consumers face different challenges along opposite sides of the stoichiometric knife-edge".Ecology Letters 22.12(2019).