气候变化领域集成服务门户(CCPortal): Feeding in the frequency domain: coarser-grained environments increase consumer sensitivity to resource variability, covariance and phase

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DOI	10.1111/ele.13267
	Feeding in the frequency domain: coarser-grained environments increase consumer sensitivity to resource variability, covariance and phase
	Koussoroplis A.-M.; Schälicke S.; Raatz M.; Bach M.; Wacker A.
发表日期	2019
ISSN	1461023X
卷号	22 期号:7
英文摘要	Theory predicts that resource variability hinders consumer performance. How this effect depends on the temporal structure of resource fluctuations encountered by individuals remains poorly understood. Combining modelling and growth experiments with Daphnia magna, we decompose the complexity of resource fluctuations and test the effect of resource variance, supply peak timing (i.e. phase) and co-limiting resource covariance along a gradient from high to low frequencies reflecting fine- to coarse-grained environments. Our results show that resource storage can buffer growth at high frequencies, but yields a sensitivity of growth to resource peak timing at lower ones. When two resources covary, negative covariance causes stronger growth depression at low frequencies. However, negative covariance might be beneficial at intermediate frequencies, an effect that can be explained by digestive acclimation. Our study provides a mechanistic basis for understanding how alterations of the environmental grain size affect consumers experiencing variable nutritional quality in nature. © 2019 John Wiley & Sons Ltd/CNRS
英文关键词	Cholesterol; covariance; Daphnia; digestive acclimation; dynamic energy budgets; food quality; phosphorus; storage; unbalanced diets
语种	英语
scopus关键词	Daphnia; Daphnia magna; animal; Daphnia; diet; population dynamics; Animals; Daphnia; Diet; Population Dynamics
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/121072
作者单位	Theoretical Aquatic Ecology and Ecophysiology group, Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany; Aquatic Food Web Interactions group (I.R.T.A), Microorganisms Genome and Environment Lab (L.M.G.E.), UMR CNRS 6023, Université Clermont Auvergne, Aubière, France; Department of Evolutionary Theory, Max Planck Institute for Evolutionary Biology, Plön, Germany; Animal Ecology group, Zoological Institute and Museum, University of Greifswald, Greifswald, Germany
推荐引用方式 GB/T 7714	Koussoroplis A.-M.,Schälicke S.,Raatz M.,et al. Feeding in the frequency domain: coarser-grained environments increase consumer sensitivity to resource variability, covariance and phase[J],2019,22(7).
APA	Koussoroplis A.-M.,Schälicke S.,Raatz M.,Bach M.,&Wacker A..(2019).Feeding in the frequency domain: coarser-grained environments increase consumer sensitivity to resource variability, covariance and phase.Ecology Letters,22(7).
MLA	Koussoroplis A.-M.,et al."Feeding in the frequency domain: coarser-grained environments increase consumer sensitivity to resource variability, covariance and phase".Ecology Letters 22.7(2019).