AVIAN BIODIVERSITY IN AN ARTIFICIAL ENVIRONMENT: CASE OF THE NOUMERATE GREEN BAND, (GHARDAÏA, ALGERIAN SAHARA)

Abstract

An avifaunestic count was carried out between November 2017 and October 2020. This qualitative and quantitative study at the level of an artificial environment, in the case of the green band Noumérate in Ghardaïa Nord, for an objective inventory of the birds' diversity. Indeed, 86 species have been identified, belonging to 17 orders and 33 families. The order Passeriformes is the most dominant with 15 families and 56 species, or 44.12% of the recorded species. As for Muscicapidae, the Alaudidae, are the best represented with respectively 13 and 07 species. Depending on phenological Status, 43 species Passage Visitor (50%), 25 breeding species, of which 18 are Resident (20.93%) and 7 are migratory species (8.14%). The Winter Visitor birds are represented by 17 species (19.77%) and finally, only one species of bird bears the unknown phenological status. It should be noted that at the national level, 22 species have been identified, or 25.58% are protected by executive Fiat Algerian law (N°12-235). On the other hand, internationally, two species have been found to have "Near threatened" status (Meadow Pipit and Dartford Warbler) and only one species has "Vulnerable" status (European Turtle Dove). The hybrid Sparrow is the most dominant among all the species counted, with 30.9% in 2018 and 29.9% in 2019. Shannon index values fluctuate between 3.65 bits (2018) and 3.32 bits (2019) and evenness index (E) values are relatively constant between 2018 and 2019, equal to 0.65.