干旱区生态环境知识资源中心(Arid): Effects of livestock grazing on plant species diversity vary along a climatic gradient in northeastern Iran

Arid

DOI	10.1111/avsc.12512
	Effects of livestock grazing on plant species diversity vary along a climatic gradient in northeastern Iran
	Rahmanian, Soroor; Hejda, Martin; Ejtehadi, Hamid; Farzam, Mohammad; Pysek, Petr; Memariani, Farshid
通讯作者	Ejtehadi, H
来源期刊	APPLIED VEGETATION SCIENCE
ISSN	1402-2001
EISSN	1654-109X
出版年	2020
卷号	23 期号:4 页码:551-561
英文摘要	Questions (a) Do patterns of species diversity and composition differ between plots exposed to high vs. low grazing intensity? (b) Do these differences vary among three regions with different climates, representing a gradient from arid to sub-humid conditions? Location Northeastern Iran. Methods We compared plots intensively grazed by sheep and goat (HG) to plots with low grazing intensity (LG), across three climatic regions: arid, semi-arid and sub-humid. Species diversity (expressed as ShannonH) was compared using linear mixed-effect models. Dissimilarity analysis was used to estimate the compositional heterogeneity of different types of plots, reflecting the differences in species composition. Indicator Species Analysis was used to identify individual species associated with particular types of plots. Results The HG plots had lower values of ShannonHthan LG plots, across all climatic regions. Further, the effect of grazing on species diversity varied between the climatic regions, with the most pronounced differences between the HG and LG plots in the sub-humid region. Although no differences in species diversity were detected between the three climatic regions, compositional heterogeneity was the highest in the sub-humid region and the lowest in the semi-arid region, with the most pronounced differences between the HG and LG plots in the sub-humid region. Indicator Species Analysis showed significant main effects of both climate and grazing on species composition, revealing species that respond to grazing in each of the three climatic regions. Conclusions Overgrazing was detected to reduce the diversity of species in all three climatic regions, even though its effect was most pronounced in the sub-humid region. Therefore, the control of overgrazing or reduction of its intensity appears an effective management tool for protecting species diversity, applicable in areas with different climates.
英文关键词	climate diversity grazing land use mountain rangelands species composition
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000556423900001
WOS关键词	TRAIT RESPONSES ; RICHNESS ; GRASSLAND ; VEGETATION ; PRODUCTIVITY ; BIODIVERSITY ; RANGELAND ; INTENSITY ; KAROO ; HERBIVORES
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/2XILL650/325458
作者单位	[Rahmanian, Soroor; Ejtehadi, Hamid] Ferdowsi Univ Mashhad, Fac Sci, Dept Biol, Quantitat Plant Ecol & Biodivers Res Lab, Mashhad, Razavi Khorasan, Iran; [Hejda, Martin; Pysek, Petr] Czech Acad Sci, Inst Bot, Dept Invas Ecol, Pruhonice, Czech Republic; [Farzam, Mohammad] Ferdowsi Univ Mashhad, Fac Nat Resources & Environm, Dept Range & Watershed Management, Mashhad, Razavi Khorasan, Iran; [Pysek, Petr] Charles Univ Prague, Fac Sci, Dept Ecol, Prague, 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,Hejda, Martin,Ejtehadi, Hamid,et al. Effects of livestock grazing on plant species diversity vary along a climatic gradient in northeastern Iran[J],2020,23(4):551-561.
APA	Rahmanian, Soroor,Hejda, Martin,Ejtehadi, Hamid,Farzam, Mohammad,Pysek, Petr,&Memariani, Farshid.(2020).Effects of livestock grazing on plant species diversity vary along a climatic gradient in northeastern Iran.APPLIED VEGETATION SCIENCE,23(4),551-561.
MLA	Rahmanian, Soroor,et al."Effects of livestock grazing on plant species diversity vary along a climatic gradient in northeastern Iran".APPLIED VEGETATION SCIENCE 23.4(2020):551-561.