Browsing by Author "DOUMANDJI, Salaheddine"

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    BIODIVERSITE ORTHOPTEROLOGIQUE DANS QUELQUES STATIONS DU SAHARA ALGERIEN (BISKRA, ADRAR, DJANET ET TAMANRASSET)
    (2014) DOUMANDJI-MITICHE, Bahia; DOUMANDJI, Salaheddine; CHEBLI, A; ABDOUALI, R; KOURIM, M.A; SID-AMAR, AHMED; DOUMANDJI, S
    La biodiversité orthoptérologique en Algérie est remarquable et varie quantitativement et qualitativement d’un étage bioclimatique à un autre. Nous nous sommes intéressés plus particulièrement à l’acridofaune de 4 régions du Sahara algérien appartenant à l’étage bioclimatique saharienne à hiver tempéré. Il s’agit de Biskra, située à 450 Km au S.E. d’Alger, d’Adrar située à 1543 Km au S.W. de la capitale, Djanet distante de 2000 km au sud est algérien et de Tamanrasset se trouvant à l’extrême sud algérien à 2200 Km d’Alger. Au cours de nos échantillonnages pour l’étude du criquet pèlerin Schistocerca gregaria Forskal, à l’état solitaire et grégaire et du criquet migrateur Locusta migratoria cinarescens nous avons noté 27 espèces d’orthoptères à Biskra dont Sphodromerus cruentatus, 32 à Adrar citons Pseudosphingonotus savigny, 11 à Djanet avecTridactylus variegatus et 19 à Tamanrasset dont Poecilocerus bufonicus hyeroglyphicus.
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    FIRST APPROACH FOR STUDYING THE IMPACTS OF THE NUCLEAR TESTS ON INSECTS IN REGGANE, ALGERIA
    (2016) CHEBLI, A; Einor, D; Owens, M. C; DOUMANDJI, Salaheddine; DOUMANDJI-MITICHE, Bahia; Mousseau, T. A
    Herein, we report the initial findings of a study of two insect species (the Sahara bee Apis mellifera sahariensis and the silverfish Lepisma saccharina) collected from the site of the 1960 Reggane nuclear test site in Algeria. These samples were analysed via single-cell electrophoresis for DNA damage resulting from radiation exposure due to nuclear tests. Our results show statistically significant variation (p<0.001) in DNA damage in the silverfish compared to control organisms, but no such effect was found in the Sahara bee. This study represents what we believe to be the first of its kind regarding the ecological effects of the 1960 Reggane nuclear test and will be expanded upon in future research. Overall we call for further in-depth studies of the desert populations of various taxa including birds and mammals.
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    Host Plant Determination of Brachytrupes megacephalus Lefebvre, 1827 (Orthoptera, Grillinae) Using Faeces Analysis in the Region of Oued Righ (Algerian Sahara)
    (American-Eurasian J. Agric. & Environ. Sci., 15 (2): 271-277, 2015, 2015) Lakhdari, Wassima; DOUMANDJI-MITICHE, Bahia; Dahliz, A; DOUMANDJI, Salaheddine; Bendifellah, L; Bouchikh, Y; Hammi, H; Soud, A; Mlik
    In the southeast of the algerian Sahara (Touggourt), the host plant determination of Brachytrupes megacephalus was studied by faeces analysis (microscopic observations). The experimentation was conducted in mid August until the end of September 2014. The main results of faeces analysis showed that the plants consumed by B. megacephalus belong to 8 families: Arecaceae (Phoenix dactylifera), Apocynaceae (Nerium oleander), Asteraceae (Chrysanthemum), Myoporaceae (Myoporum sandwicense), Plumbaginaceae (Armeria maritima), Rosaceae (Prunus armeniaca), Solanaceae (Solanum lycopersicum) and Triochylaceae (Cherry fantasia and White Kristina). Phoenix dactylifera is the most preferred host species by the adults of Brachytrupes megacephalus, with a consumption rate 85,87%.
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    Morphology and structure of adult male genitalia of Brachytrupes megacephalus Lefebvre, 1827 (Orthoptera, Gryllidae) in the southeast of Algeria
    (Journal of Entomology and Zoology Studies 2015; 3(6): 355-359, 2015) Lakhdari, Wassima; DOUMANDJI-MITICHE, Bahia; Acheuk, Fatma; Dehliz, Abderrahmene; Hammi, Hamida; M’lik, Randa; Soud, Adila; DOUMANDJI, Salaheddine
    Depending to the few and old data which have been conducted on the body morphology of Brachytrupes megacephalus Lefebvre, 1827 (Orthoptera, Gryllidae), we have investigated the structure of male genitalia in Algerian Sahara species to establish a basis for morphological study. The study was conducted in the laboratory of entomology in the experimental station of Sidi Mehdi. After isolation of the male genital apparatus, we find that its structure is consisted by the testis, accessory gland, ejaculatory duct and the phallic complex. The last organ is composed of epiphalus, guiding rod, ectoparamere, endoparamere, dorsal and median pouch. The spermatophore produced by Brachytrupes megacephalus was investigated in detail. Besides the study of the spermatophore size (8 mm), morphology, and formation, spermatophore is composed of the ampulla (3.9 mm), attachment plate (2.8 mm) and the tube (1.5 mm). The present paper aims to improve this information, on the species of B. megacephalus.