Drivers of -diversity along latitudinal gradients revisited

doi:10.1111/geb.12020

	Drivers of -diversity along latitudinal gradients revisited
	Qian, Hong ; Chen, Shengbin 1,2; Mao, Lingfeng 3,4; Ouyang, Zhiyun 2
	2013
发表期刊	GLOBAL ECOLOGY AND BIOGEOGRAPHY
ISSN	1466-822X
卷号	22 期号:6 页码:659-670
摘要	Aim Ecologists have generally agreed that -diversity is driven at least in part by ecological processes and mechanisms of community assembly and is a key determinant of global patterns of species richness. This idea has been challenged by a recent study based on an individual-based null model approach, which aims to account for the species pool. The goal of the present study is twofold: (1) to analyse data sets from different parts of the world to determine whether there are significant latitude-diversity gradients after accounting for the species pool, and (2) to evaluate the validity of the null model. Location Global. Methods A total of 257 forest plots, each being 0.1 ha in size and having 10 0.01-ha subplots, were used. We conducted four sets of analyses. A modified version of Whittaker's -diversity index was used to quantify -diversity for each forest plot. A randomization procedure was used to determine expected -diversity. Results The number of individuals per species, which characterizes species abundance distribution, alone explains 56.884.2% of the variation in observed -diversity. Species pool (-diversity) explained only an additional 2.615.2% of the variation in observed -diversity. Latitude explains 18.6% of the variation in raw deviation in Gentry's global data set, and explains 11.011.6% of the variation in standardized deviation in the global and three regional analyses. Latitude explains 33.246.2% of the variation in the number of individuals per species. Main conclusions Species abundance distribution, rather than species pool size, plays a key role in driving latitude-diversity gradients for -diversity in local forest communities. The individual-based null model is not a valid null model for investigating -diversity gradients driven by mechanisms of local community assembly because the null model incorporates species abundance distributions, which are driven by mechanisms of local community assembly and in turn generate -diversity gradients.
关键词	Beta diversity gamma diversity latitudinal diversity gradient mechanisms of community assembly null model species pool species turnover woody plants
学科领域	Ecology ; Geography, Physical
DOI	10.1111/geb.12020
收录类别	SCI
语种	英语
WOS关键词	SPECIES-ENERGY RELATIONSHIPS ; BETA-DIVERSITY ; GLOBAL PATTERNS ; VASCULAR PLANTS ; ABUNDANCE ; COMMUNITY ; HYPOTHESIS ; SCALE ; SPECIALIZATION ; DISTRIBUTIONS
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000318512900003
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1466-8238
资助机构	National Basic Research Program(National Basic Research Program of China)
引用统计	被引频次：60[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/2S10CLM1/27947
专题	植被与环境变化国家重点实验室
作者单位	1.Illinois State Museum, Res & Collect Ctr, Springfield, IL 62703 USA 2.Minist Environm Protect, Nanjing Inst Environm Sci, Nanjing 210042, Jiangsu, Peoples R China 3.Chinese Acad Sci, State Key Lab Urban & Reg Ecol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 5.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Qian, Hong,Chen, Shengbin,Mao, Lingfeng,et al. Drivers of -diversity along latitudinal gradients revisited[J]. GLOBAL ECOLOGY AND BIOGEOGRAPHY,2013,22(6):659-670.
APA	Qian, Hong,Chen, Shengbin,Mao, Lingfeng,&Ouyang, Zhiyun.(2013).Drivers of -diversity along latitudinal gradients revisited.GLOBAL ECOLOGY AND BIOGEOGRAPHY,22(6),659-670.
MLA	Qian, Hong,et al."Drivers of -diversity along latitudinal gradients revisited".GLOBAL ECOLOGY AND BIOGEOGRAPHY 22.6(2013):659-670.

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