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New records, distribution and phenology of hoverflies (Diptera: Syrphidae) in semi-arid habitats in northeastern Algeria
Oriental Insects ( IF 0.5 ) Pub Date : 2020-04-13 , DOI: 10.1080/00305316.2020.1749906
Nadjoua Mebarkia 1, 2 , Souad Neffar 2 , Sihem Djellab 2 , Antonio Ricarte 3 , Haroun Chenchouni 2, 4
Affiliation  

ABSTRACT

Hoverflies (Diptera: Syrphidae) pollinate plants, predate other insects, and feed on vegetal and decay materials, being used as bioindicators of different ecosystem conditions and processes. The main aim is to enhance the bioindicator potential of hoverflies in Algeria by increasing our knowledge on the hoverfly communities of different environments in the semi-arid Northeast of Algeria: unpolluted riverbank, plant nursery, polluted riverbank, olive orchard (Olea europaea), prickly pear plantations (Opuntia ficus-indica), and a cypress hedge (Cupressus sempervirens). With an entomological net, hoverflies were sampled fortnightly from December 2016 to November 2017. In total 37 species were identified. The unpolluted and polluted riverbanks and the plant nursery had the highest species richness with 26, 24, and 23 species respectively, whereas, the lowest species numbers were detected in the prickly pear plantations, the cypress hedge and the olive orchard with 16, 14, and 10 species respectively. One species was new to North Africa (Eumerus etnensis), whereas four species were recorded for the first time in Algeria (Eumerus obliquus, Eupeodes nuba, Paragus vandergooti and Platycheirus ambiguus). Examined material also contributes to better understand each species phenology in Algeria.



中文翻译:

阿尔及利亚东北部半干旱生境中的蚜蝇(双翅目:Syrphidae)的新记录,分布和物候

摘要

蚜虫(双翅目:Syrphidae)为植物授粉,早于其他昆虫,并以植物和腐烂材料为食,被用作不同生态系统条件和过程的生物指标。主要目的是通过增加我们对半干旱的阿尔及利亚东北部不同环境的蚜蝇群落的认识,从而提高阿尔及利亚食蚜蝇的生物指示剂潜力:未污染的河岸,苗圃,污染的河岸,橄榄园(油橄榄)梨种植园(Opuntia ficus-indica)和柏树篱(Cupressus sempervirens)。借助昆虫学网,从2016年12月至2017年11月每两周采样一次蚜虫。共鉴定出37种。未污染和污染的河岸和苗圃的物种丰富度最高,分别为26、24和23种,而在刺梨,柏树篱和橄榄园中的物种数最低,分别为16、14和14。和10种。一个物种是北非的新物种(Eumerus etnensis),而阿尔及利亚则首次记录了四个物种(Eumerus obliquus,Eupeodes nuba,Paragus vandergootiPlatycheirus ambiguus)。检查的材料还有助于更好地了解阿尔及利亚的每个物种物候。

更新日期:2020-04-13
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