干旱区生态环境知识资源中心(Arid): The interplay between facilitation and habitat type drives spatial vegetation patterns in global drylands

Arid

DOI	10.1111/ecog.03795
	The interplay between facilitation and habitat type drives spatial vegetation patterns in global drylands
	Berdugo, Miguel 1; Soliveres, Santiago 2; Kefi, Sonia 3; Maestre, Fernando T.1
通讯作者	Berdugo, Miguel
来源期刊	ECOGRAPHY
ISSN	0906-7590
EISSN	1600-0587
出版年	2019
卷号	42 期号:4 页码:755-767
英文摘要	The spatial configuration of vascular vegetation has been linked to variations in land degradation and ecosystem functioning in drylands. However, most studies on spatial patterns conducted to date have focused on a single or a few study sites within a particular region, specific vegetation types, or in landscapes characterized by a certain type of spatial patterns. Therefore, little is known on the general typology and distribution of plant spatial patterns in drylands worldwide, and on the relative importance of biotic and abiotic factors as predictors of their variations across geographical regions and habitat types. We analyzed 115 dryland plant communities from all continents except Antarctica to: 1) investigate the general typology of spatial patterns, and 2) assess the relative importance of biotic (plant cover, frequency of facilitation, soil amelioration, height of the dominant species) and abiotic (aridity, rainfall seasonality and sand content) factors as predictors of spatial patterns (median patch size, shape of patch-size distribution and regularity) across contrasting habitat types (shrublands and grasslands). Precipitation during the warmest period and sand content were particularly strong predictors of plant spatial patterns in grasslands and shrublands, respectively. Facilitation associated with power-law like and irregular spatial patterns in both shrublands and grasslands, although it was mediated by different mechanisms (respectively soil ammelioration and percentage of facilitated species). The importance of biotic attributes as predictors of the shape of patch-size distributions declined with aridity in both habitats, leading to the emergence of more regular patterns under the most arid conditions. Our results expand our knowledge about patch formation in drylands and the habitat-dependency of their drivers. They also highlight different ways in which facilitation affects ecosystem structure through the formation of plant spatial patterns.
英文关键词	patch-size distributions aridity regular spatial patterns
类型	Article
语种	英语
国家	Spain ; France
开放获取类型	Green Published, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000462922500012
WOS关键词	PLANT-PLANT INTERACTIONS ; SHRUB ENCROACHMENT ; ECOSYSTEM MULTIFUNCTIONALITY ; SEMIARID VEGETATION ; SOIL ; SIZE ; DIVERSITY ; MODEL ; DESERTIFICATION ; ENVIRONMENT
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构	French National Research Institute for Sustainable Development
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215124
作者单位	1.Univ Rey Juan Carlos, Escuela Super Ciencias Expt & Technol, Dept Biol & Geol Fis & Quim Inorgan, Mostoles, Spain; 2.Univ Alicante, Dept Ecol, Alicante, Spain; 3.Univ Montpellier, IRD, EPHE, ISEM,CNRS, Montpellier, France
推荐引用方式 GB/T 7714	Berdugo, Miguel,Soliveres, Santiago,Kefi, Sonia,et al. The interplay between facilitation and habitat type drives spatial vegetation patterns in global drylands[J]. French National Research Institute for Sustainable Development,2019,42(4):755-767.
APA	Berdugo, Miguel,Soliveres, Santiago,Kefi, Sonia,&Maestre, Fernando T..(2019).The interplay between facilitation and habitat type drives spatial vegetation patterns in global drylands.ECOGRAPHY,42(4),755-767.
MLA	Berdugo, Miguel,et al."The interplay between facilitation and habitat type drives spatial vegetation patterns in global drylands".ECOGRAPHY 42.4(2019):755-767.