干旱区生态环境知识资源中心(Arid): Floristic patterns and ecological drivers of sand dune ecosystem along the Mediterranean coast of Egypt

Arid

DOI	10.1080/15324982.2018.1564147
	Floristic patterns and ecological drivers of sand dune ecosystem along the Mediterranean coast of Egypt
	Abdelaal, Mohamed 1,2; Ahmed, Dalia 3; Fois, Mauro 1; Fenu, Giuseppe 1; Bacchetta, Gianluigi 1
通讯作者	Fois, Mauro
来源期刊	ARID LAND RESEARCH AND MANAGEMENT
ISSN	1532-4982
EISSN	1532-4990
出版年	2019
卷号	33 期号:4 页码:388-411
英文摘要	Most of the sand dunes close to the Mediterranean coast of Egypt have been destroyed due to human pressures. The remaining dunes are under extreme threat due to unplanned development. This study aims to explore the floristic patterns and detect which drivers threaten their conservation status. Eighty-five random plots of 100 m(2) each along 12 transects perpendicular to the seashore in the northwestern coastal dunes were sampled. Classification of plots using plant cover percentage was carried out through agglomerative hierarchical clustering and principal coordinate analysis. Canonical correspondence analysis (CCA) and variance partitioning (VP) were used to define the drivers that influence the floristic patterns. Therophytes and chamaephytes represent 30% of each of the 113 vascular plant species recorded in the present study. Four clusters of plant species corresponding to four dune-types were identified: Ammophila arenaria - Ononis vaginalis in foredunes, Echinops spinosissimus- Launaea fragilis in embryonic dunes, Echinops spinosissimus- Allium erdelii in transitional and Echinops spinosissimus- Thymelaea hirsuta in stabilized dunes. Stabilized dunes showed the highest diversity (species richness H-dune = 1.37, evenness E-dune = 0.88) and rarity indices (R = 0.52) as well as a steeper rarefaction curve. CCA disclosed that organic matter and CaCO3 content, distance from the coastline, overcutting, trampling, and urbanization were correlated with the floristic patterns. VP showed that the examined variables justified for 53% of the variance in the floristic composition. Our results can be considered by managers to fulfill an appropriate conservation plan to preserve and manage the coastal dunes in arid regions.
英文关键词	Anthropogenic factors coastal management coastal threats coastal vegetation dune morphology
类型	Article
语种	英语
国家	Italy ; Egypt
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000487531600003
WOS关键词	SPECIES DISTRIBUTION MODELS ; VULNERABILITY INDEX ; DISTURBANCE FACTORS ; CONSERVATION STATUS ; PLANT DIVERSITY ; VEGETATION ; LAND ; HABITAT ; SOIL ; SYSTEMS
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214399
作者单位	1.Univ Cagliari, Dept Environm & Life Sci, Ctr Conservat Biodivers, Viale S Ignazio da Laconi 13, I-09123 Cagliari, Italy; 2.Mansoura Univ, Fac Sci, Dept Bot, Mansoura, Egypt; 3.Tanta Univ, Fac Sci, Dept Bot, Tanta, Egypt
推荐引用方式 GB/T 7714	Abdelaal, Mohamed,Ahmed, Dalia,Fois, Mauro,et al. Floristic patterns and ecological drivers of sand dune ecosystem along the Mediterranean coast of Egypt[J],2019,33(4):388-411.
APA	Abdelaal, Mohamed,Ahmed, Dalia,Fois, Mauro,Fenu, Giuseppe,&Bacchetta, Gianluigi.(2019).Floristic patterns and ecological drivers of sand dune ecosystem along the Mediterranean coast of Egypt.ARID LAND RESEARCH AND MANAGEMENT,33(4),388-411.
MLA	Abdelaal, Mohamed,et al."Floristic patterns and ecological drivers of sand dune ecosystem along the Mediterranean coast of Egypt".ARID LAND RESEARCH AND MANAGEMENT 33.4(2019):388-411.