Oiseaux d'eau dans le delta du Sénégal en janvier 1995
Extensive water development has taken place in the north of Senegal over the last decade, resulting in a large increase in the amount of fresh water for irrigation. The objectives of the present study were to determine the prevalence and intensity of Schistosoma mansoni and S. haematobium in the Senegal river basin (SRB), and to ascertain the distr...
This paper describes a system of production in relation to its notion of space and society : the idea of limits is not based on the simple frame of tesselated adjacent territories, as usually seen in crop systems. In Mali, among the fishermen of the inner delta of the river Niger in Mali, territorial limits do exist, but they are flexible and tempo...