干旱区生态环境知识资源中心(Arid): Both vacant niches and competition-trait hierarchy are useful for explaining the invasion of Caragana microphylla into the semi-arid grassland

Arid

DOI	10.1007/s11104-020-04429-z
	Both vacant niches and competition-trait hierarchy are useful for explaining the invasion of Caragana microphylla into the semi-arid grassland
	Dong, Ke; Xu, Yujuan; Hao, Guang; Yang, Nan; Zhao, Nianxi; Gao, Yubao
通讯作者	Zhao, Nianxi
来源期刊	PLANT AND SOIL
ISSN	0032-079X
EISSN	1573-5036
出版年	2020
卷号	448 期号:1-2 页码:253-263
英文摘要	Aims Trait-based coexistence theories are useful to explain community processes. The aim was to distinguish which theory played a more important role in explaining the invasion mechanism of Caragana microphylla into communities in the Eurasian semi-arid grassland region. Method We conducted a water condition (WC) x neighbouring plant diversity (NSD) experiment, measured functional dispersion (FDis) and biomass of neighbours, absolute and hierarchical distances between neighbours and C. microphylla for plant height, specific leaf area and leaf dry matter content (LDMC), and explored the relative effect of each predictor on neighbour-effect intensity index (NInt(A)) on C. microphylla. Results Significant effect of NSD was direct or mediated by cascading effects between FDis and biomass of neighbours, significant effect of WC was direct or mediated by LDMC hierarchical distance, shoot biomass of neighbours mediated indirect effects of both NSD and WC on the NInt(A) on C. microphylla. None of the trait absolute distances was employed to explain the variability of the NInt(A) on C. microphylla. Conclusions The reduction of NSD or water could decrease the inhibitory effects of neighbours on C. microphylla by increasing vacant niches or increasing the LDMC hierarchical distance between neighbours and C. microphylla, respectively, suggesting that vacant niches and competition-trait hierarchy played more important roles than competition-trait similarity in explaining shrub invasion processes in the Eurasian semi-arid grassland region.
英文关键词	Neighbouring species diversity Shrub invasion Trait hierarchy Trait similarity Vacant niches
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000526428600016
WOS关键词	FUNCTIONAL DIVERSITY ; SHRUB ENCROACHMENT ; PLANT ; COEXISTENCE ; RESISTANCE ; BIODIVERSITY ; SIMILARITY ; STRATEGIES ; INTENSITY
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315326
作者单位	Nankai Univ, Dept Plant Biol & Ecol, Coll Life Sci, Tianjin 300071, Peoples R China
推荐引用方式 GB/T 7714	Dong, Ke,Xu, Yujuan,Hao, Guang,et al. Both vacant niches and competition-trait hierarchy are useful for explaining the invasion of Caragana microphylla into the semi-arid grassland[J],2020,448(1-2):253-263.
APA	Dong, Ke,Xu, Yujuan,Hao, Guang,Yang, Nan,Zhao, Nianxi,&Gao, Yubao.(2020).Both vacant niches and competition-trait hierarchy are useful for explaining the invasion of Caragana microphylla into the semi-arid grassland.PLANT AND SOIL,448(1-2),253-263.
MLA	Dong, Ke,et al."Both vacant niches and competition-trait hierarchy are useful for explaining the invasion of Caragana microphylla into the semi-arid grassland".PLANT AND SOIL 448.1-2(2020):253-263.