Patterns of phylogenetic beta diversity in China&apos;s grasslandsin in   relation to geographical and environmental distance

doi:10.1016/j.baae.2014.07.003

CORC > 北京大学 > 城市与环境学院

	Patterns of phylogenetic beta diversity in China's grasslandsin in relation to geographical and environmental distance
	Chi, Xiulian ; Tang, Zhiyao ; Fang, Jingyun
刊名	basic and applied ecology
	2014
关键词	Dispersal limitation Distance decay Environmental distance Environmental filtering Geographical distance Phylogenetic beta-diversity ECOLOGICAL COMMUNITIES MICROBIAL COMMUNITIES STOCHASTIC-PROCESSES PLANT EVOLUTIONARY FORESTS TRAITS TREE ANGIOSPERMS ECOSYSTEMS
DOI	10.1016/j.baae.2014.07.003
英文摘要	Patterns and determinants of beta (beta-) diversity can be used to explore the underlying mechanisms regulating community assembly. Despite being the most commonly used measure of beta-diversity, species turnover does not consider the evolutionary differences among species, treating all species equally. Incorporating information on phylogenetic non-independence or relatedness among species in the calculation of beta-diversity may substantially advance our understanding of the ecological and evolutionary mechanisms structuring communities. Here, we investigate the relative influence of geographical distance and differences in environmental conditions (environmental distance) on the phylogenetic beta-diversity between grassland communities expanding 4000 km across the Tibetan Plateau, the Inner Mongolia Plateau and the Xinjiang Autonomous Region in China. Both observed and standardized effect size of phylogenetic beta-diversity were significantly correlated with geographical and environmental distance across all regions. However, the effect of geographical distance on the standardized effect size of phylogenetic beta-diversity disappeared when environmental distance was controlled. We also found that within different regions, the effect of environmental distance on both observed and standardized effect size of phylogenetic beta-diversity was more significant than geographical distance. Among environmental variables, climate played a more important role in shaping observed phylogenetic beta-diversity across and within regions, and standardized effect size of phylogenetic beta-diversity across regions. Soil properties played a more important role in shaping standardized effect size of phylogenetic beta-diversity within regions. The phylogenetic beta-diversity of species from dicot and monocot clades exhibited similar patterns along environmental and geographical distance. The results suggest that at the study scale, phylogeny of grassland communities in China is predominantly structured by environmental filtering, and the dominant environmental factors may be scale-dependent.; Ecology; SCI(E); 0; ARTICLE; zytang@urban.pku.edu.cn; 5; 416-425; 15
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/210093]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Chi, Xiulian,Tang, Zhiyao,Fang, Jingyun. Patterns of phylogenetic beta diversity in China's grasslandsin in relation to geographical and environmental distance[J]. basic and applied ecology,2014.
APA	Chi, Xiulian,Tang, Zhiyao,&Fang, Jingyun.(2014).Patterns of phylogenetic beta diversity in China's grasslandsin in relation to geographical and environmental distance.basic and applied ecology.
MLA	Chi, Xiulian,et al."Patterns of phylogenetic beta diversity in China's grasslandsin in relation to geographical and environmental distance".basic and applied ecology (2014).