1. Department of Natural and Life Sciences, Faculty of Exact Sciences and Natural and Life Sciences, University of Mohamed Khidder Biskra, Biskra, Algeria
2. Forests Conservation of Sétif, Directorate General of Forests (DGF), Sétif, Algeria
3. Departamento de Ecología, Universidad de Alicante, San Vicente del Raspeig, Alicante, Spain
4. High Commission for Development of the Steppe (HCDS), Tébessa, Algeria