The present work studied the diversity of Formicidae in two agrosystems Bejaia, a lemon orchard located at INRAA and an orange Amizour. We used transect method by combining three (3) sampling methods: Barber Pots or Pitfall, Bait, manual capture. identified 18 ant species representing 11 genera subfamilies: Dolichoderinae (Tapinoma magnum), Formicinae (Cataglyphis, Camponotus, Lasius, Plagiolep...

In order to assess the degree of pollution surface water from Boussalem river city Setif, we conducted during 2014; a study physical and chemical characteristics water. The results showed that is loaded into mineral matter in terms electrical conductivity (Avg = 1059,18 μS/cm ± 631,7), turbidity 15,713 NTU 22,19), TSS 189 mg/l 119,5), with low dissolved oxygen 2,98 2 ,44). pH closed neutrality ...

The Algeria forest, particularly in the northeastern region, has undergone profound changes recent years. Oued Bouhamdane watershed a great forest potential, which is threatened by several factors of natural and human origin, resulting decrease cover. It requires adequate monitoring to support sustainable management this watershed, possible thanks satellite imagery. objective research st...