A paraître dans Raimond C., Zakinet D., Abdouramane M., Sylvestre F. (dir), Recherches croisées sur les écosystèmes lacustres tchadiensBefore the Boko Haram uprising, the economic vitalityof the multi-use of space in the Cameroonian part of Lake Chad was based on an efficient and equitable mode of governance of the common property resources. This mode of governance was characterized by the fluidity of coordinations between users and by the absence of rights holders in capacity to exclude other groups from resources access. Nevertheless the sustainability of this mode of governance was called into questions by the local power games supplied by the democratization which undermined the collective action capacities. While the lacustrian territo...