Forest community assembly is driven by different strata-dependent mechanisms along an elevational gradient

doi:10.1111/jbi.13669

CORC > 昆明植物研究所 > 中国科学院昆明植物研究所 > 中国科学院东亚植物多样性与生物地理学重点实验室

	Forest community assembly is driven by different strata-dependent mechanisms along an elevational gradient
	Luo, Ya-Huang 2,6; Cadotte, Marc W.3; Burgess, Kevin S.4; Liu, Jie6 ; Tan, Shao-Lin 5,6; Xu, Kun 1; Li, De-Zhu2,5 ; Gao, Lian-Ming1,6
刊名	JOURNAL OF BIOGEOGRAPHY
	2019-07-29
页码	14
关键词	environmental filtering facilitation functional diversity limiting similarity phylogenetic diversity subalpine forest
ISSN号	0305-0270
DOI	10.1111/jbi.13669
通讯作者	Li, De-Zhu(dzl@mail.kib.ac.cn) ; Gao, Lian-Ming(gaolm@mail.kib.ac.cn)
英文摘要	Aim The mechanisms driving forest community assembly along elevational gradients remain elusive. The distinct strata in heterogeneous forest are subject to differing assembly mechanisms. This study aims to evaluate how different ecological mechanisms driving forest community assembly across strata and spatial scales, and to identify how these assemblages respond to different abiotic or biotic variables along an elevational gradient. Location Yulong Mountain within Hengduan Mountains, Southwest China. Taxon Seed plants. Methods We sampled plant species along a 1,200 m elevational gradient across forest strata (trees, shrubs and herbs) at different spatial scales (neighbourhood and community). We integrated phylogenetic and functional diversity to disentangle the roles of ecological mechanisms in structuring community assembly. We also determined the relative effects of climatic, soil and biotic variables and their interactions on these community assemblages. Results The phylogenetic and functional diversity of trees were lower at the extremes of the elevational gradient, where they were constrained by water availability or temperature. While communities with higher species diversity exhibited an overdispersed structure at mid-elevations. For shrubs, overdispersion was exhibited at high elevations despite low species richness, which could be consistent with facilitative interactions or competition exclusion. However, most communities of herbs appear to have a markedly random structure, despite some incongruence between phylogenetic divergence and functional convergence, as well as influences from overstorey trees and local light conditions. The relative effects of abiotic variables on community structure were larger at the community scale than at the neighbourhood scale. Main conclusions Our study emphasises the importance of considering phylogenies and traits in understanding the strata- and scale-dependent mechanisms of forest community assembly. Collectively, results indicate that contrasting assembly mechanisms interact across different strata along elevational gradients to shape diverse forest communities.
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography
语种	英语
WOS记录号	WOS:000479710600001
内容类型	期刊论文
源URL	[http://ir.kib.ac.cn/handle/151853/68348]
专题	昆明植物研究所_中国科学院东亚植物多样性与生物地理学重点实验室
通讯作者	Li, De-Zhu; Gao, Lian-Ming
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Lijiang Forest Ecosyst Res Stn, Lijiang, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species Southwest China, Kunming, Yunnan, Peoples R China 3.Univ Toronto, Univ Toronto Scarborough & Ecol & Evolutionary Bi, Biol Sci, Toronto, ON, Canada 4.Univ Syst Georgia, Columbus State Univ, Coll Letters & Sci, Dept Biol, Columbus, GA USA 5.Univ Chinese Acad Sci, Coll Life Sci, Kunming, Yunnan, Peoples R China 6.Chinese Acad Sci, Kunming Inst Bot, CAS Key Lab Plant Divers & Biogeog East Asia, Kunming, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Luo, Ya-Huang,Cadotte, Marc W.,Burgess, Kevin S.,et al. Forest community assembly is driven by different strata-dependent mechanisms along an elevational gradient[J]. JOURNAL OF BIOGEOGRAPHY,2019:14.
APA	Luo, Ya-Huang.,Cadotte, Marc W..,Burgess, Kevin S..,Liu, Jie.,Tan, Shao-Lin.,...&Gao, Lian-Ming.(2019).Forest community assembly is driven by different strata-dependent mechanisms along an elevational gradient.JOURNAL OF BIOGEOGRAPHY,14.
MLA	Luo, Ya-Huang,et al."Forest community assembly is driven by different strata-dependent mechanisms along an elevational gradient".JOURNAL OF BIOGEOGRAPHY (2019):14.