A latitudinal gradient in tree community assembly processes evidenced in   Chinese forests

doi:10.1111/geb.12278

CORC > 北京大学 > 城市与环境学院

	A latitudinal gradient in tree community assembly processes evidenced in Chinese forests
	Qiao, Xiujuan ; Jabot, Franck ; Tang, Zhiyao ; Jiang, Mingxi ; Fang, Jingyun
刊名	global ecology and biogeography
	2015
关键词	Abundance evenness Bayesian statistics climatic gradients coldness index non-neutral model species abundance distribution SPECIES ABUNDANCE DISTRIBUTIONS DIVERSITY GRADIENT BETA-DIVERSITY DENSITY-DEPENDENCE TROPICAL FORESTS MOUNTAIN FORESTS NEUTRAL-THEORY NORTH-AMERICA PATTERNS HYPOTHESIS
DOI	10.1111/geb.12278
英文摘要	AimMost studies on latitudinal gradients of biodiversity have focused on gradients of species richness. Here we aim to test whether, on top of these strong diversity gradients, processes of community assembly vary along a latitudinal gradient of more than 33 degrees. LocationChina, latitude 18.67-51.86 degrees N. MethodsWe used species abundance distribution (SAD) data collected in 32 forest tree plots, and fitted a non-neutral model of community assembly to these SADs. We then calculated the fitted deviation from neutrality, , and looked for correlations between and geographical and environmental data. ResultsThe fitted parameter was positive in most plots, and was furthermore positively correlated with latitude and negatively with temperature, indicating a less even abundance distribution and a likely increase in the strength of environmental filtering in regions further from the tropics and with decreasing temperatures. These results imply that on top of reducing the species richness, cold temperature may impact community assembly processes by strengthening local environmental filtering. Main conclusionsOur results suggest a latitudinal gradient in tree community assembly process in Chinese forests, in which deviations from neutrality increase with latitude, probably because of an increase in environmental harshness.; Ecology; Geography, Physical; SCI(E); 0; ARTICLE; zytang@urban.pku.edu.cn; 3; 314-323; 24
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/160848]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Qiao, Xiujuan,Jabot, Franck,Tang, Zhiyao,et al. A latitudinal gradient in tree community assembly processes evidenced in Chinese forests[J]. global ecology and biogeography,2015.
APA	Qiao, Xiujuan,Jabot, Franck,Tang, Zhiyao,Jiang, Mingxi,&Fang, Jingyun.(2015).A latitudinal gradient in tree community assembly processes evidenced in Chinese forests.global ecology and biogeography.
MLA	Qiao, Xiujuan,et al."A latitudinal gradient in tree community assembly processes evidenced in Chinese forests".global ecology and biogeography (2015).