Taylor's law and related allometric power laws in New Zealand mountain beech forests: the roles of space, time and environment

doi:10.1111/oik.02622

	Taylor's law and related allometric power laws in New Zealand mountain beech forests: the roles of space, time and environment
	Cohen, Joel E.; Lai, Jiangshan 2; Coomes, David A.; Allen, Robert B.
	2016
发表期刊	OIKOS
ISSN	0030-1299
卷号	125 期号:9 页码:1342-1357
摘要	Taylor's law says that the variance of population density of a species is proportional to a power of mean population density. Density-mass allometry says that mean population density is proportional to a power of mean biomass per individual. These power laws predict a third, variance-mass allometry: the variance of population density of a species is proportional to a power of mean biomass per individual. We tested these laws using 10 censuses of New Zealand mountain beech trees in 250 plots over 30 years at spatial scales from 5 m to kilometers. We found that: 1) a single-species forest not disrupted by humans obeyed all three laws; 2) random sampling explained the parameters of Taylor's law at a large spatial scale in 8 of 10 censuses, but not at a fine spatial scale; 3) larger spatial scale increased the exponent of Taylor's law and decreased the exponent of variance-mass allometry (this is the first empirical demonstration that the latter exponent depends on spatial scale), but affected the exponent of density-mass allometry slightly; 4) despite varying natural disturbance, the three laws varied relatively little over the 30 years; 5) self-thinning and recruiting plots had significantly different intercepts and slopes of density-mass allometry and variance-mass allometry, but the parameters of Taylor's law were not usually significantly affected; and 6) higher soil calcium was associated with higher variance of population density in all censuses but not with a difference in the exponent of Taylor's law, while elevation above sea level and soil carbon-to-nitrogen ratios had little effect on the parameters of Taylor's law. In general, the three laws were remarkably robust. When their parameters were influenced by spatial scale and environmental factors, the parameters could not be species-specific indicators. We suggest biological mechanisms that may explain some of these findings.
学科领域	Ecology
DOI	10.1111/oik.02622
收录类别	SCI
语种	英语
WOS关键词	DENSITY-MASS ALLOMETRY ; POPULATION-DYNAMICS ; SPATIAL DISTRIBUTIONS ; ANIMAL POPULATIONS ; NOTHOFAGUS FOREST ; STAND DEVELOPMENT ; SIZE ; VARIANCE ; PATTERNS ; COMPETITION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000382496000014
出版者	WILEY-BLACKWELL
文献子类	Article
出版地	HOBOKEN
EISSN	1600-0706
资助机构	U.S. National Science FoundationNational Science Foundation (NSF) [DMS-1225529] ; Landcare Research
作者邮箱	cohen@rockefeller.edu
作品OA属性	Green Accepted
引用统计	被引频次：18[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/25150
专题	植被与环境变化国家重点实验室
作者单位	1.[Cohen, Joel E.] Rockefeller Univ, Lab Populat, 1230 York Ave,Box 20, New York, NY 10065 USA 2.Cohen, Joel E.] Columbia Univ, 1230 York Ave,Box 20, New York, NY 10065 USA 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 4.Coomes, David A.] Univ Cambridge, Dept Plant Sci, Downing St, Cambridge CB2 3EA, England 5.Allen, Robert B.] Landcare Res, POB 40, Lincoln 7640, New Zealand
推荐引用方式 GB/T 7714	Cohen, Joel E.,Lai, Jiangshan,Coomes, David A.,et al. Taylor's law and related allometric power laws in New Zealand mountain beech forests: the roles of space, time and environment[J]. OIKOS,2016,125(9):1342-1357.
APA	Cohen, Joel E.,Lai, Jiangshan,Coomes, David A.,&Allen, Robert B..(2016).Taylor's law and related allometric power laws in New Zealand mountain beech forests: the roles of space, time and environment.OIKOS,125(9),1342-1357.
MLA	Cohen, Joel E.,et al."Taylor's law and related allometric power laws in New Zealand mountain beech forests: the roles of space, time and environment".OIKOS 125.9(2016):1342-1357.

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