Undersampling correction methods to control gamma-dependence for comparing beta-diversity between regions

doi:10.1002/ecy.3448

	Undersampling correction methods to control gamma-dependence for comparing beta-diversity between regions
	Cao, Ke 1; Svenning, Jens-Christian ; Yan, Chuan 4; Zhang, Jintun 1; Mi, Xiangcheng ; Ma, Keping
	2021
发表期刊	ECOLOGY
ISSN	0012-9658
卷号	102 期号:9
摘要	Measures of beta-diversity are known to be biased by differences in gamma-diversity (i.e., gamma-dependence), making it challenging to compare beta-diversity across regions. Undersampling corrections have been designed to reduce effects of gamma-dependence on beta-diversity arising from the problem of incomplete sampling. However, no study has systematically tested the effectiveness of these corrections or examined how well they reflect beta-diversity patterns across ecological gradients. Here, we conduct these tests by comparing two undersampling corrections with the widely used individual-based null model approach, using both simulated communities along an ecological gradient and empirical data across a wide range of gamma-diversity and sample sizes. We found that undersampling corrections using diversity accumulation curves were more effective than the null-model approaches in removing gamma-dependence. In particular, the corrected beta-Shannon diversity index was least dependent on gamma-diversity, and was the most reflective of the beta-diversity pattern along a simulated ecological gradient. Moreover, a corrected Jaccard-Chao index applied to null model results removed gamma-dependence more effectively than either the correction alone or the null model alone. Undersampling corrections are effective tools for removing gamma-dependence bias, thus facilitating comparisons of beta-diversity across regions.
关键词	beta (beta)-diversity metrics diversity accumulation curve ecological processes gamma (gamma)-diversity null model undersampling
学科领域	Ecology
DOI	10.1002/ecy.3448
收录类别	SCI
语种	英语
WOS关键词	SIMILARITY INDEXES ; EXTRAPOLATION ; RAREFACTION ; RATHER ; ALPHA
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000679444700001
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1939-9170
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences [XDA19050500] ; National Natural Science Foundation of China [NSFC 31770478] ; VILLUM FONDEN [16549]
作者邮箱	mixiangcheng@ibcas.ac.cn
作品OA属性	Green Submitted
引用统计	被引频次：2[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/2S10CLM1/26577
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Beijing Normal Univ, Minist Educ, Key Lab Biodivers Sci & Ecol Engn, Beijing 100875, Peoples R China 3.Aarhus Univ, Dept Biol, Ctr Biodivers Dynam Changing World BIOCHANGE, Ny Munkegade 114, DK-8000 Aarhus C, Denmark 4.Aarhus Univ, Dept Biol, Sect Ecoinformat & Biodivers, Ny Munkegade 114, DK-8000 Aarhus C, Denmark 5.Lanzhou Univ, Inst Innovat Ecol, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Cao, Ke,Svenning, Jens-Christian,Yan, Chuan,et al. Undersampling correction methods to control gamma-dependence for comparing beta-diversity between regions[J]. ECOLOGY,2021,102(9).
APA	Cao, Ke,Svenning, Jens-Christian,Yan, Chuan,Zhang, Jintun,Mi, Xiangcheng,&Ma, Keping.(2021).Undersampling correction methods to control gamma-dependence for comparing beta-diversity between regions.ECOLOGY,102(9).
MLA	Cao, Ke,et al."Undersampling correction methods to control gamma-dependence for comparing beta-diversity between regions".ECOLOGY 102.9(2021).

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