Phylogeny and ecological processes influence grass coexistence at different spatial scales within the steppe biome

doi:10.1007/s00442-019-04475-0

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	Phylogeny and ecological processes influence grass coexistence at different spatial scales within the steppe biome
	Liu, Hui 3; Osborne, Colin P.; Yin, Deyi 3; Freckleton, Robert P.; Jiang, Gaoming 1; Liu, Meizhen 1
刊名	OECOLOGIA
	2019
卷号	191 期号:1 页码:25-38
关键词	Inner Mongolian steppe Phylogenetic niche conservatism Plant functional trait Poaceae Scale dependence
ISSN号	0029-8549
DOI	10.1007/s00442-019-04475-0
文献子类	Article
英文摘要	Phylogenetic analyses are essential for disentangling how environmental filtering and competition determine species coexistence across spatial scales. Inner Mongolia steppe has strong environmental gradients, but how the phylogenetic relatedness of co-occurring species and phylogenetic signals of functional traits change across spatial scales remains unclear. We investigated the phylogenetic structure of grass assemblages along environmental gradients from regional to local scales, and measured functional traits within assemblages. We compared phylogenetic signals of plant traits between the same numbers of species randomly selected from the regional pool and species observed at the local scale, did phylogenetic principal component analysis to infer the main factors driving species coexistence, and examined the key plant trait-environment relationships across the phylogeny to reveal ecological adaptation mechanisms. Regionally, grass species were phylogenetically clustered with contrasting climate preferences. With decreasing spatial scales, species richness declined, changing from phylogenetically clustered to overdispersed, and phylogenetic signals of plant traits became weaker. At the local scale, grass assemblages were structured by soil water content and neighbor density, and the trait-environment relationships were less clear than those at the regional scale. This study demonstrated that at smaller scales, co-occurring grass species in the steppe tended to be more phylogenetically overdispersed, and that phylogenetic signals of plant functional traits became weaker with increasing abiotic and biotic interactions. Our findings contributed evidence for understanding species coexistence and maintenance at scales spanning regional to local communities in the East Asia steppe biome.
学科主题	Ecology
电子版国际标准刊号	1432-1939
出版地	NEW YORK
WOS关键词	FUNCTIONAL TRAIT ; PLANT COMMUNITY ; SPECIES-DIVERSITY ; ROOT LENGTH ; EVOLUTION ; PATTERNS ; MONGOLIA ; DIVERSIFICATION ; MECHANISMS ; SIMILARITY
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000484956600003
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31670411, 31300334] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences [2019339] ; UK/China Excellence Scholarship (China Scholarship Council)China Scholarship Council ; UK/China Excellence Scholarship (UK Government)
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/19726]
专题	植被与环境变化国家重点实验室
作者单位	1.Liu, Hui; Osborne, Colin P.; Freckleton, Robert P.] Univ Sheffield, Dept Anim & Plant Sci, Sheffield S10 2TN, S Yorkshire, England 2.Chinese Acad Sci, Inst Bot, Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Chinese Acad Sci, Key Lab Vegetat Restorat & Management Degraded Ec, Guangdong Prov Key Lab Appl Bot, South China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China 4.Chinese Acad Sci, Ctr Plant Ecol, Core Bot Garden, Guangzhou 510650, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Liu, Hui,Osborne, Colin P.,Yin, Deyi,et al. Phylogeny and ecological processes influence grass coexistence at different spatial scales within the steppe biome[J]. OECOLOGIA,2019,191(1):25-38.
APA	Liu, Hui,Osborne, Colin P.,Yin, Deyi,Freckleton, Robert P.,Jiang, Gaoming,&Liu, Meizhen.(2019).Phylogeny and ecological processes influence grass coexistence at different spatial scales within the steppe biome.OECOLOGIA,191(1),25-38.
MLA	Liu, Hui,et al."Phylogeny and ecological processes influence grass coexistence at different spatial scales within the steppe biome".OECOLOGIA 191.1(2019):25-38.