Browsing by Author "SEBAA, Ahmed"

Filter results by typing the first few letters
Now showing 1 - 1 of 1
  • No Thumbnail Available
    Item
    Inventaire de l'avifaune dans la palmeraie de la région d'El Atteuf (Wilaya de Ghardaïa).
    (Faculté Science de la Nature et de la Vie et Sciences de la Terre - Université de Ghardaïa, 2023-06-11) REZZAG, AbdElDjabar; SEBAA, Ahmed
    Our study aimed to identify the harmful/useful birds in palm grove of El Atteuf (Ghardaïa). During 5 months from November 2022 to March 2023 and using the IPA bird study method, we have inventoried 28 species structured into 16 families, with a dominance of the Muscicapidae, Columbidae and Hirundinidae families. However, the Passeriformes order is characterized by a very large number of species. Relative Abundance showed that the majority of species are ranked as very rare species (23 species), and some species are abundant such as: rock pigeon Columba livia (868 individuals), hybrid house sparrow (344 individuals) and Eurasian Collared Dove Streptopelia decaocto (213 individuals). This fauna is distributed among several different classes: accidental species represent 35.71%. Followed by accessory species (32.14%). However, the regular category represents only 3.57%. Biodiversity is estimated to be high (2.77 bits) in these two palm groves. But with a weak balance between the number of different species inventoried (E=0.58). Because the Rock Pigeon represents more than 40% of the total population (868 individuals). From the point of view, the origin of this diversity is the Mediterranean and European and Turkestano-Mediterranean part. Ultimately, the palm groves of El Atteuf are a good ecologically and agricultural area, allowed the installation and passage of multiple populations of birds with various characteristics. Where the majority of species (18 species) are useful and only 5 species can be considered as crop pests.