干旱区生态环境知识资源中心(Arid): Scale-dependent patterns and drivers of plant diversity in steppe grasslands of the Central Alborz Mts., Iran

Arid

DOI	10.1111/jvs.13005
	Scale-dependent patterns and drivers of plant diversity in steppe grasslands of the Central Alborz Mts., Iran
	Talebi, Amir; Attar, Farideh; Naqinezhad, Alireza; Dembicz, Iwona; Dengler, Juergen
通讯作者	Attar, F (corresponding author), Univ Tehran, Coll Sci, Sch Biol, POB 14155-6455, Tehran, Iran. ; Attar, F (corresponding author), Univ Tehran, Coll Sci, Ctr Excellence Phylogeny Living Organisms, POB 14155-6455, Tehran, Iran.
来源期刊	JOURNAL OF VEGETATION SCIENCE
ISSN	1100-9233
EISSN	1654-1103
出版年	2021
卷号	32 期号:2
英文摘要	Questions Which are the main environmental drivers of plot scale alpha-diversity and beta-diversity in arid steppes? Do they vary between functional groups and across grain sizes? Location Central Alborz Mts., N Iran. Methods We sampled vascular plants in 23 nested-plot series with nine grain sizes from 0.0001 m(2) to 1,000 m(2) and 334 25-m(2) vegetation plots in different vegetation types of natural dry steppe grasslands. To assess beta-diversity, we calculated overall and local z-values of species-area relationships modelled with the power function. As potential drivers of species richness and z-values, we used topographic, edaphic and climatic variables as well as management types. Generalised linear models (GLMs), and generalised linear mixed-effect models (GLMMs) if spatial autocorrelation occurred, were used in a multi-model inference framework to build statistical models. Results Mean annual temperature was the most important predictor for total species richness and richness of functional groups across grain sizes, with a unimodal relationship for grains of 25-100 m(2), but mostly increasing for finer grain sizes. Precipitation of the driest month and cover of gravel were influential drivers at the smallest grains. The explanatory power of regression models increased towards larger grain sizes. The overall z-values showed a high positive relationship with precipitation of the driest month, mean annual temperature and mean soil depth. Conclusions Related to our more than 3,000-m elevational gradient, mean annual temperature (highly negatively correlated with elevation) was the most influential and consistent driver across functional groups and grain sizes with mostly unimodal relationships for alpha-diversity and a positive effect on beta-diversity. Findings for other drivers were less consistent, and overall the explained variance of our models was relatively low, calling for additional studies to determine whether in the arid grasslands of Iran stochasticity is just higher or there are additional important variables.
英文关键词	Alborz Mts beta diversity biodiversity elevational gradient grain size Iran multi‐ model inference nested plot Palaearctic grassland scale dependence species richness species– area relationship steppe
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000645256100007
WOS关键词	VEGETATION-ENVIRONMENT RELATIONSHIPS ; SPECIES-AREA RELATIONSHIPS ; ELEVATIONAL GRADIENT ; DAMAVAND-VOLCANO ; BETA-DIVERSITY ; SPATIAL SCALE ; HIGH-ALPINE ; RICHNESS ; BIODIVERSITY ; HETEROGENEITY
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/2XILL650/368959
作者单位	[Talebi, Amir; Attar, Farideh] Univ Tehran, Coll Sci, Sch Biol, POB 14155-6455, Tehran, Iran; [Talebi, Amir; Attar, Farideh] Univ Tehran, Coll Sci, Ctr Excellence Phylogeny Living Organisms, POB 14155-6455, Tehran, Iran; [Naqinezhad, Alireza] Univ Mazandaran, Fac Basic Sci, Dept Plant Biol, Babolsar, Iran; [Dembicz, Iwona] Univ Warsaw, Fac Biol, Inst Environm Biol, Dept Ecol & Environm Conservat, Warsaw, Poland; [Dembicz, Iwona; Dengler, Juergen] Zurich Univ Appl Sci ZHAW, Inst Nat Resource Management IUNR, Vegetat Ecol Grp, Wadenswil, Switzerland; [Dengler, Juergen] Univ Bayreuth, Bayreuth Ctr Ecol & Environm Res BayCEER, Plant Ecol, Bayreuth, Germany; [Dengler, Juergen] German Ctr Integrat Biodivers Res iDiv, Leipzig, Germany
推荐引用方式 GB/T 7714	Talebi, Amir,Attar, Farideh,Naqinezhad, Alireza,et al. Scale-dependent patterns and drivers of plant diversity in steppe grasslands of the Central Alborz Mts., Iran[J],2021,32(2).
APA	Talebi, Amir,Attar, Farideh,Naqinezhad, Alireza,Dembicz, Iwona,&Dengler, Juergen.(2021).Scale-dependent patterns and drivers of plant diversity in steppe grasslands of the Central Alborz Mts., Iran.JOURNAL OF VEGETATION SCIENCE,32(2).
MLA	Talebi, Amir,et al."Scale-dependent patterns and drivers of plant diversity in steppe grasslands of the Central Alborz Mts., Iran".JOURNAL OF VEGETATION SCIENCE 32.2(2021).