La flore endémique du Nord-Est algérien face à la menace des espèces envahissantes

Abstract

The endemic flora of Northeastern Algeria facing the threat of invasive plants. We established for the first time for the Skikda region, the lists (updated list and list of taxa to research) of endemic flora and naturalized species considered invasive in the Mediterranean, representing a potential threat to this flora, by conducting surveys at the level of twelve communes. This led to the identification of 64 endemic taxa more than half of which are in the updated list (38 taxa). These plants belong to 26 families, 46 genera and are divided into 50 species, 11 subspecies and 3 varieties. The Algerian-Tunisian endemics are the most abundant (30 taxa). 11 invasive species in the Mediterranean are naturalized in our region, 5 of which colonize natural environments particularly rich in endemic species. Acacia saligna, Carpobrotus edulis and Opuntia ficus-indica are the main threatening species of this biological richness