JFAS_Vol 09 N 01

Permanent URI for this collectionhttps://archives.univ-eloued.dz/handle/123456789/7359

Browse

Browsing JFAS_Vol 09 N 01 by Author "Bendifallah, L."

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    Study Of Genitalia Morphometric Variability Of The Two Species Helix Aperta And Helix Aspersa (gasteropoda, Pulmonata)
    (University of Eloued جامعة الوادي, 2017-01-01) Benbellil Tafoughalt, S.; Bendifallah, L.
    Our research aims for, firstly, the study of genitalia morphometric variability of the two species Helix aperta and Helix aspersa, and the relation of this variability with individual’s weight and shell size. Secondly, differences in dimensions of the genital organs between the two studied species were investigated. This study showed, first, the existence of an important dimensional variability of genital organs in both studied species, then, a positive correlation between organs’ measurements and those of weight and shell. Finally, two genital organs, that are flagellum and proximal duct of bursa copulatrix, proved to be interesting to discriminate between the two species Helix aperta and Helix aspersa, because both organs are greater in Helix aspersa.
  • No Thumbnail Available
    Item
    Study Of Trophic Relationships Between Diaspididae Family Species -host Plants -predators And Parasitoids In Algeria
    (University of Eloued جامعة الوادي, 2017-01-01) Belguendouz, R.; Biche, M.; Bendifallah, L.
    The use of parasitoids and predators in biocontrol contribute to the development of sustainable agriculture, respects environment and human health. In this context, we undertook the identification of natural Diaspididae enemies located on the Algerian territory. Results highlight three predatory families: Coccinellidae, Nitidulidae and Coniopterygidae families, the first represented by the most voracious species as Rhyzobius lophantae living on 19 Diaspines observed on 121 plants, from the northern, and two parasitoid families lived on 39 Diaspididae species affecting 125 plants and were represented by four genera and 23 species such as Aphytis and Encarcia (Aphelinidae) lived on 31 diaspididae species found on 125 host plants. The most voracious and polyphagous species identified are interesting for IPM