干旱区生态环境知识资源中心(Arid): How altitudinal gradient affects the diversity and composition of benthic insects in arid areas streams of northern East Algeria?

Arid

DOI	10.2478/s11756-019-00326-8
	How altitudinal gradient affects the diversity and composition of benthic insects in arid areas streams of northern East Algeria?
	Benzina, Imene 1; Bachir, Abdelkrim Si 2; Ghazi, Cherif 3; Santoul, Frederic 4; Cereghino, Regis 4
通讯作者	Benzina, Imene
来源期刊	BIOLOGIA
ISSN	0006-3088
EISSN	1336-9563
出版年	2020
卷号	75 期号:4 页码:567-577
英文摘要	This study was carried out to evaluate the variation of diversity and composition of benthic insects in streams, along an altitudinal gradient in an arid area of Belezma National Park, Northern East of Algeria. Benthic entomofauna was sampled in the spring season of 2015, 2017 and 2018 at 28 sampling sites distributed along 4 streams unaffected by human pressure. The altitudinal gradient varies between 1045 m and 1500 m. At each site, we measured 5 physicochemical parameters of water and other physical factors describing each site (velocity, depth and width). All of these environmental factors vary significantly with altitude. A total of 78 taxa belonging to 55 families and 8 orders of benthic insects were identified. Both diversity and abundance of studied entomofauna vary with altitudinal gradient. The highest values of diversity were found in the fourth altitudinal zone (AZ4: up to 1400 m, total taxa richness = 52) and AZ3 (1300 to 1400 m, Shannon index = 3.16). The average number of individuals in AZ1 is higher than in all the other altitudinal zones (mean individuals number = 102.75). The General Linear Model analysis shows that the altitudinal gradient is in favour of high diversity but in disfavour of population abundance. The hierarchical clustering analysis revealed three cluster groups of benthic insects, which are altitudinal indicators. Diptera and Ephemeroptera in downstream stations are mainly replaced by Coleoptera in upstream ones.
英文关键词	Altitudinal gradient Diversity Abundance Benthic insects Stream Arid area
类型	Article
语种	英语
国家	Algeria ; France
收录类别	SCI-E
WOS记录号	WOS:000519350700007
WOS关键词	MACROINVERTEBRATE COMMUNITIES ; INVERTEBRATE COMMUNITIES ; ENVIRONMENTAL VARIABLES ; HEADWATER STREAMS ; RIVER-BASIN ; ASSEMBLAGES ; ZONATION ; BIODIVERSITY ; RICHNESS ; PATTERNS
WOS类目	Biology
WOS研究方向	Life Sciences & Biomedicine - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314176
作者单位	1.Univ Larbi Ben MHidi, Fac Sci Exactes & Sci Nat & Vie, Dept Sci Nat & Vie, Oum El Bouaghi 04000, Algeria; 2.Univ Mostefa Ben Boulaid, Fac Sci Nat & Vie, Dept Ecol & Environm, Batna 2, Batna 05110, Algeria; 3.Univ Ghardaia, Fac Sci Nat & Vie & Sci Terre, Dept Sci Nat & Vie, Ghardaia 47000, Algeria; 4.Univ Toulouse, Lab Ecol Fonct & Environm, EcoLab, CNRS, 118 Route Narbonne, F-31062 Toulouse 9, France
推荐引用方式 GB/T 7714	Benzina, Imene,Bachir, Abdelkrim Si,Ghazi, Cherif,et al. How altitudinal gradient affects the diversity and composition of benthic insects in arid areas streams of northern East Algeria?[J],2020,75(4):567-577.
APA	Benzina, Imene,Bachir, Abdelkrim Si,Ghazi, Cherif,Santoul, Frederic,&Cereghino, Regis.(2020).How altitudinal gradient affects the diversity and composition of benthic insects in arid areas streams of northern East Algeria?.BIOLOGIA,75(4),567-577.
MLA	Benzina, Imene,et al."How altitudinal gradient affects the diversity and composition of benthic insects in arid areas streams of northern East Algeria?".BIOLOGIA 75.4(2020):567-577.