Aggregated spatial distributions of species in a subtropical karst forest, southwestern China

doi:10.1093/jpe/rts027

	Aggregated spatial distributions of species in a subtropical karst forest, southwestern China
	Zhang, Zhonghua 1; Hu, Gang 1; Zhu, Jiedong 2; Ni, Jian 3,4
	2013
发表期刊	JOURNAL OF PLANT ECOLOGY
ISSN	1752-9921
卷号	6 期号:2 页码:131-140
摘要	Spatial distribution patterns of species reflect not only the ecological processes but also the habitat features that are related to species distribution. In karst topography, species distribution patterns provide more specific information about their environments. The objectives of this study are as follows: (i) to analyse and explain the spatial distribution patterns of conspecific trees in an old-growth subtropical karst forest; (ii) to investigate pattern changes at different spatial scales; (iii) to test the spatial pattern similarity (or dissimilarity) between trees at different abundances, diameter at breast height classes, canopy layers and different functional groups (shade tolerance and seed dispersal mode); (iv) to examine whether habitat heterogeneity has an important effect on the species spatial distribution. The spatial distributions of woody species with 20 individuals in a 1-ha subtropical karst forest plot at Maolan in southwestern China were quantified using the relative neighbourhood density O based on the average density of conspecific species in a circular neighbourhood around each species. Aggregated distribution is the dominant pattern in the karst forest, but the ratio of aggregated species in total species number decreases with an increase in spatial scale. Less abundant species are more aggregated than most abundant species. Aggregation is weaker in larger diameter classes, which is consistent with the prediction of self-thinning. Seed dispersal mode influences spatial patterns, with species dispersed by animals being less aggregated than those dispersed by wind and gravity. Other species functional traits (e.g. shade tolerance) also influence the species spatial distributions. Moreover, differences among species habitat associations, e.g. with rocky outcrops, play a significant role in species spatial distributions. These results indicate that habitat heterogeneity, seed dispersal limitation and self-thinning primarily contribute to the species spatial distributions in this subtropical karst forest.
关键词	functional trait habitat heterogeneity karst forest relative neighbourhood density spatial distribution species coexistence
学科领域	Plant Sciences ; Ecology ; Forestry
DOI	10.1093/jpe/rts027
收录类别	SCI
语种	英语
WOS关键词	TROPICAL RAIN-FOREST ; POINT PATTERN-ANALYSIS ; BROAD-LEAVED FOREST ; HABITAT ASSOCIATIONS ; BETA-DIVERSITY ; TREES ; DISPERSAL ; SPECIALIZATION ; TOPOGRAPHY
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000316964200003
出版者	OXFORD UNIV PRESS
文献子类	Article
出版地	OXFORD
EISSN	1752-993X
资助机构	One Hundred Talents Program of the Chinese Academy of Sciences(Chinese Academy of Sciences) ; National Basic Research Program (973) of the China Ministry of Science and Technology(National Basic Research Program of China)
作者邮箱	Ni, Jian/I-7067-2012
作品OA属性	Bronze
引用统计	被引频次：33[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/2S10CLM1/28153
专题	植被与环境变化国家重点实验室
作者单位	1.Guangxi Teachers Educ Univ, Sch Chem & Life Sci, Nanning 530001, Peoples R China 2.Guangxi Teachers Educ Univ, Minist Educ, Key Lab Beibu Gulf Environm Change & Resources Ut, Nanning 530001, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China 5.E China Normal Univ, Dept Environm Sci, Shanghai 200062, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zhonghua,Hu, Gang,Zhu, Jiedong,et al. Aggregated spatial distributions of species in a subtropical karst forest, southwestern China[J]. JOURNAL OF PLANT ECOLOGY,2013,6(2):131-140.
APA	Zhang, Zhonghua,Hu, Gang,Zhu, Jiedong,&Ni, Jian.(2013).Aggregated spatial distributions of species in a subtropical karst forest, southwestern China.JOURNAL OF PLANT ECOLOGY,6(2),131-140.
MLA	Zhang, Zhonghua,et al."Aggregated spatial distributions of species in a subtropical karst forest, southwestern China".JOURNAL OF PLANT ECOLOGY 6.2(2013):131-140.

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