干旱区生态环境知识资源中心(Arid): Does the intensive grazing and aridity change the relations between the dominant shrub Artemisia kopetdaghensis and plants under its canopies?

Arid

DOI	10.1002/ece3.8124
	Does the intensive grazing and aridity change the relations between the dominant shrub Artemisia kopetdaghensis and plants under its canopies?
	Rahmanian, Soroor; Ejtehadi, Hamid; Farzam, Mohammad; Hejda, Martin; Memariani, Farshid; Pysek, Petr
通讯作者	Farzam, M (corresponding author), Ferdowsi Univ Mashhad, Fac Nat Resources & Environm, Dept Range & Watershed Management, Mashhad, Razavi Khorasan, Iran.
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2021
英文摘要	The interspecific plant interactions along grazing and aridity stress gradients represent a major research issue in plant ecology. However, the combined effects of these two factors on plant-plant interactions have been poorly studied in the northeast of Iran. To fill this knowledge gap, 144 plots were established in 12 study sites with different grazing intensities (high vs. low) and climatic characteristics (arid vs. semiarid) in northeastern Iran. A dominant shrub, Artemisia kopetdaghensis, was selected as the model species. Further, we studied changes in plant life strategies along the combined grazing and aridity stress gradients. In this study, we used relative interaction indices calculated for species richness, Shannon diversity, and species cover to determine plant-plant interactions using linear mixed-effect models (LMM). The indicator species analysis was used to identify the indicator species for the undercanopy of shrub and for the adjacent open areas. The combined effects of grazing and aridity affected the plant-plant interactions and plant life strategies (CSR) of indicator species. A. kopetdaghensis showed the highest facilitation effect under high stress conditions (high grazing, high aridity), which turned into competition under the low stress conditions (low grazing, low aridity). In the arid region, the canopy of the shrub protected ruderals, annual forbs, and grasses in both high and low grazing intensities. In the semiarid region and high grazing intensity (low aridity/high grazing), the shrubs protected mostly perennial forbs with C-strategy. Our findings highlight the importance of context-dependent shrub management to restore the vegetation damaged by the intensive grazing.
英文关键词	Artemisia kopetdaghensis CSR plant strategies facilitation herbivory plant-plant interactions
类型	Article ; Early Access
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000697627700001
WOS关键词	STRESS-GRADIENT HYPOTHESIS ; BIOTIC STRESS ; FACILITATION ; DIVERSITY ; COMPETITION ; HERBIVORY ; PRESSURE ; SOIL ; INTERFERENCE ; VEGETATION
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363032
作者单位	[Rahmanian, Soroor; Ejtehadi, Hamid] Ferdowsi Univ Mashhad, Fac Sci, Dept Biol, Mashhad, Razavi Khorasan, Iran; [Farzam, Mohammad] Ferdowsi Univ Mashhad, Fac Nat Resources & Environm, Dept Range & Watershed Management, Mashhad, Razavi Khorasan, Iran; [Hejda, Martin; Pysek, Petr] Czech Acad Sci, Inst Bot, Dept Invas Ecol, Pruhonice, Czech Republic; [Memariani, Farshid] Ferdowsi Univ Mashhad, Res Ctr Plant Sci, Dept Bot, Mashhad, Razavi Khorasan, Iran
推荐引用方式 GB/T 7714	Rahmanian, Soroor,Ejtehadi, Hamid,Farzam, Mohammad,et al. Does the intensive grazing and aridity change the relations between the dominant shrub Artemisia kopetdaghensis and plants under its canopies?[J],2021.
APA	Rahmanian, Soroor,Ejtehadi, Hamid,Farzam, Mohammad,Hejda, Martin,Memariani, Farshid,&Pysek, Petr.(2021).Does the intensive grazing and aridity change the relations between the dominant shrub Artemisia kopetdaghensis and plants under its canopies?.ECOLOGY AND EVOLUTION.
MLA	Rahmanian, Soroor,et al."Does the intensive grazing and aridity change the relations between the dominant shrub Artemisia kopetdaghensis and plants under its canopies?".ECOLOGY AND EVOLUTION (2021).