Enquête sur les biotopes de grégarisation et de multiplication du Criquet pèlerin dans le plateau de Tademaït en Algérie

Abstract

Our study was based in a first step on field trips in winter 2023 at the level of locust biotopes of the Tademaït plateau in Algeria. In a second part, we have exploited the archive of the INPV which gathers the locust and floristic data of the Algerian Sahara during the year 2022e (Global Positionning System), Geographic Information System (RAMSES), Locust Information Satellite Transmission Devices (Elocust 3). Locust surveys were also carried out in autumn and winter at the Tademaït plateau. Distribution maps of the desert locust have been drawn up, It appears that the individuals of Desert Locust in the solitary (or weakly transient) state are mainly distributed in the desert area. Two reproductions are possible; one in spring in the central Sahara which is more abundant and a second in autumn at the southern part of the plateau,