Modeling and simulation study of the stoichiometric niche space and niche overlap based on the copula method

doi:10.1007/s10651-019-00437-0

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	Modeling and simulation study of the stoichiometric niche space and niche overlap based on the copula method
	Huang, Shaoqian ; Zhou, Qi 1; Gu, Lianchao ; Wang, Hongqing ; Zhang, Guangming 2,3
刊名	ENVIRONMENTAL AND ECOLOGICAL STATISTICS
	2020
卷号	27 期号:1 页码:115-149
关键词	Copulas selection Dependence structure Joint distribution fitting margins Niche space and overlap Stoichiometric niche quantification
ISSN号	1352-8505
DOI	10.1007/s10651-019-00437-0
文献子类	Article
英文摘要	To qualify niche space and niche overlap, the current methods are based on a strict assumption of the normal distribution and restrict dependence to the linear structure between resource axes. In this study, we propose a new method for measuring the stoichiometric niche space and niche overlap based on copula theory. Our method does not require the resource axes to obey the multivariate normal distribution and only assumes that each dimension of resource availability follows a one-dimensional normal distribution. Based on the dependence structure presented by the three resource axes, an appropriate copula is selected to couple the normal assumptions and thus determine a joint distribution that fits the carbon, nitrogen and phosphorus concentration data. Additional simulation studies were conducted to calculate niche space and niche overlap. We applied our method to qualify the stoichiometric niche space and niche overlap between seven grassland plants in Inner Mongolia, North China. Our results demonstrate that, except for a positive correlation, symmetrical tail correlations existed between nitrogen and phosphorus concentrations, which had a significant influence on the shape of the niche space. The new method presented in our work extends types of joint distribution fitting resource axes from a multivariate normal distribution to an arbitrary joint distribution determined by copulas and normal margins, and it has the advantage of describing the complex dependence between resource axes.
学科主题	Environmental Sciences ; Mathematics, Interdisciplinary Applications ; Statistics & Probability
电子版国际标准刊号	1573-3009
出版地	DORDRECHT
WOS关键词	INFERENCE ; ECOLOGY ; TESTS ; BREADTH
WOS研究方向	Environmental Sciences & Ecology ; Mathematics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000519373800005
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/21862]
专题	植被与环境变化国家重点实验室
作者单位	1.Beijing Forestry Univ, Dept Math, Beijing, Peoples R China 2.Beijing Jiaotong Univ, Dept Math, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 4.Changzhi Med Coll, Dept Pharmaceut Sci, Changzhi, Peoples R China
推荐引用方式 GB/T 7714	Huang, Shaoqian,Zhou, Qi,Gu, Lianchao,et al. Modeling and simulation study of the stoichiometric niche space and niche overlap based on the copula method[J]. ENVIRONMENTAL AND ECOLOGICAL STATISTICS,2020,27(1):115-149.
APA	Huang, Shaoqian,Zhou, Qi,Gu, Lianchao,Wang, Hongqing,&Zhang, Guangming.(2020).Modeling and simulation study of the stoichiometric niche space and niche overlap based on the copula method.ENVIRONMENTAL AND ECOLOGICAL STATISTICS,27(1),115-149.
MLA	Huang, Shaoqian,et al."Modeling and simulation study of the stoichiometric niche space and niche overlap based on the copula method".ENVIRONMENTAL AND ECOLOGICAL STATISTICS 27.1(2020):115-149.