干旱区生态环境知识资源中心(Arid): Exotic Prosopis juliflora suppresses understory diversity and promotes agricultural weeds more than a native congener

Arid

DOI	10.1007/s11258-020-01040-1
	Exotic Prosopis juliflora suppresses understory diversity and promotes agricultural weeds more than a native congener
	Slate, Mandy L.1,2,3; Tsombou, Francois Mitterand 4; Callaway, Ragan M.2,3; Inderjit 5; El-Keblawy, Ali A.4
通讯作者	El-Keblawy, Ali A.
来源期刊	PLANT ECOLOGY
ISSN	1385-0237
EISSN	1573-5052
出版年	2020
卷号	221 期号:8 页码:659-669
英文摘要	Exotic invasive plant species alter ecosystems and locally extirpate native plant species, and by doing so alter community structure. Changes in community structure may be particularly important if invaders promote species with certain traits. For example, the positive effects of most invaders on soil fertility may promote species with weedy traits, whether native or not. We examined the effects of two co-occurring Prosopis congeners, the native P. cineraria and the exotic invader P. juliflora, on species identified as agricultural weeds and species that were not agricultural weeds in the United Arab Emirates. When compared to plots in the open, P. cineraria canopies were associated with lower richness and density of non-weeds while having no impact on agricultural weed species. In contrast, there was lower richness and densities of non-weeds under canopies of P. juliflora, but higher densities of agricultural weeds than in the open surrounding the canopies. These patterns associated with Prosopis congeners and understory plant community composition might be due to the much higher litter deposition, if litter is inhibitory, and shallow root biomass under P. juliflora, or the different soil properties that corresponded with the two Prosopis canopies. In general, soils contained more nitrogen under P. juliflora than P. cineraria, and both understories were more fertile than soil in the open. Our results suggest that evolutionary history may play a role in how exotic invasive species may select for some traits over others in plant communities, with an exotic invader potentially creating reservoirs of agricultural weeds.
英文关键词	Agricultural weeds Arid lands Facilitation
类型	Article
语种	英语
国家	USA ; U Arab Emirates ; India
收录类别	SCI-E
WOS记录号	WOS:000536421700001
WOS关键词	SEEDLING GROWTH ; INVASIVE PLANTS ; SOIL PROPERTIES ; FACILITATION ; IMPACTS ; GREATER ; AVAILABILITY ; PRODUCTIVITY ; VEGETATION ; GRASSLAND
WOS类目	Plant Sciences ; Ecology ; Forestry
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319196
作者单位	1.Univ Colorado, Dept Ecol & Evolutionary Biol, Boulder, CO 80307 USA; 2.Univ Montana, Div Biol Sci, Missoula, MT 59812 USA; 3.Univ Montana, Inst Ecosyst, Missoula, MT 59812 USA; 4.Univ Sharjah, Coll Sci, POB 27272, Sharjah, U Arab Emirates; 5.Univ Delhi, Ctr Environm Management Degraded Ecosyst CEMDE, Dept Environm Studies, Delhi, India
推荐引用方式 GB/T 7714	Slate, Mandy L.,Tsombou, Francois Mitterand,Callaway, Ragan M.,et al. Exotic Prosopis juliflora suppresses understory diversity and promotes agricultural weeds more than a native congener[J],2020,221(8):659-669.
APA	Slate, Mandy L.,Tsombou, Francois Mitterand,Callaway, Ragan M.,Inderjit,&El-Keblawy, Ali A..(2020).Exotic Prosopis juliflora suppresses understory diversity and promotes agricultural weeds more than a native congener.PLANT ECOLOGY,221(8),659-669.
MLA	Slate, Mandy L.,et al."Exotic Prosopis juliflora suppresses understory diversity and promotes agricultural weeds more than a native congener".PLANT ECOLOGY 221.8(2020):659-669.