Lab

Mohammed.Laid. Ouakid's Lab

Featured research (4)

An updated checklist of the mosquitoes (Diptera: Culicidae) of Algeria based on records published from 1903 to 2021 is presented. Fifty-three species belonging to seven genera are known with reasonable confidence to occur in the country, including Aedes (15 species), Anopheles (15), Coquillettidia (2), Culex (14), Culiseta (5), Orthopodomyia (1) and Uranotaenia (1). Two additional species, Culex simpsoni Theobald, 1905 and Uranotaenia balfouri Theobald, 1904, are provisionally regarded as present in Algeria. Published records are listed for each species, with indication of synonymous usage and variant spelling of names where applicable. The type locality of Aedes biskraensis Brunhes, 1999 is restricted to Seriana in Sidi Okba District in Biskra Province. Problematic species and doubtful occurrence records based on apparently misidentified specimens and confused taxonomy are discussed. Notes on taxonomy and medical importance are provided for the more important species.
ABSTRACT: Objectives: The control strategies of mosquitos like Culiseta longiareolata were developed gradually. A study of the bio-ecology of Culiseta longiareolata was considered as the first step to fight against it. Methodology and results: Larvae and adult collections were carried out from different habitats using standard dipping methods from the region of Biskra (Algerian Southeast) (34° 51′ 00″ north, 5° 44′ 00″ east). For five years during 2009-2013 in four sites and the investigation was bimonthly for any site. Overall, 792 specimens of mosquitoes were identified among the 44677 specimens that were collected. Cs. longiareolata presented in the second order with 27.59 % in numerical terms after Culex pipiens 28.65 %, Aedes caspius 12.97 %, Anopheles multicolor 7.22 %, Anopheles sergentii 2.84 %. Other 17 species were presented with low rates. This species was collected from all types of habitats (dominant or periodic stagnant water, with or no vegetation, clear or turbid, sunny ,or noisy sites, filled with fresh or brackish water, clean or polluted), throughout the year with different abundances. The Phenology of Cs. longiareolata proves that it is distributed in ten months annually, compared with other species. The sexual dimorphism was clear across the morphometric characters of both sexes. The densities were variables for this species when marked two picks, for the month of May (> 40 individual/stroke for larvae, > 32 individual/stroke for an adult), for the month of November (> 27 individual/stroke for larvae, > 2O individual/stroke for an adult). Conclusion and appilication of findings: More, Cs. longiareolata cohabited with all species of different genera Aedes, Culex, and Anopheles.
This work focused on monitoring the reproductive phenology of the chaffinch Fringilla coelebs africana for two successive seasons (2016 and 2017) in the mountains of the El Kala National Park (North East Algeria). We searched for nests in the tree stratum or by direct observation of breeding pairs carrying building materials from mid-March to the end of June and found a total of 34 nests that were measured without affecting the breeding process. The results show that nests were built at an average height of 6.3m from the ground. The laying period was 46 days (Early April to mid-May) and the average laying date was May 2. The mean of clutch size is 3.2 eggs per brood. All the previous traits are similar to those recorded in Europe. The mean hatching success rate was 43.1% and the average breeding success rate was 36.3%. These two values are relatively low compared to those found in European populations.
The date moth Ectomyelois ceratoniae Zeller (Lepidoptera: Pyralidae) is considered at present a permanent danger for date palm in Algeria. The polyphagia of this insect and its wide distribution on various hosts as well as the particular behavior of its neonatal caterpillars make this insect a major pest of the Algerian palm groves. In this context, the study of the attractiveness of this bio-aggressor by the extract of the Deglet Nour variety with hexane was tested on larvae in different stages. These extracts were identified and quantified by coupling gas chromatography / mass spectrometry (GC / MS). The attractiveness tests carried out in a close chamber and in the olfactometer reveal that the older individuals are significantly attracted than the first and second larval stages by the odor of the Deglet Nour variety, this attraction is due to the presence of odorous molecules which attract this formidable pest. Chromatographic analysis has identified about fifty products that can play a very important role in the attraction of this insect.

Lab head

Mohammed.Laid. Ouakid
Department
  • Département de biologie
About Mohammed.Laid. Ouakid
  • biologie, écologie comportement, toxicologie,biodiversité animale

Members (12)

Yasmine Adjami
  • Badji Mokhtar - Annaba University
Ben Salah Mohamed Kamel
  • Centre de Recherche Scientifique et Technique sur les Régions Arides (CRSTRA)
Mehaoua Mohmed Seghir
  • Université de Biskra
Lebbouz Ismahane
  • Mohamed Khider University
Ayoub Hadjeb
  • Mohamed Khider University
Tabib Rabie
  • Badji Mokhtar - Annaba University
Matoug Hichem
  • Badji Mokhtar - Annaba University
Wafa Tadjer
  • Badji Mokhtar - Annaba University
Mohamed Laid
Mohamed Laid
  • Not confirmed yet
El Bah Djamila
El Bah Djamila
  • Not confirmed yet
Abdelhakim Rouibi
Abdelhakim Rouibi
  • Not confirmed yet