The commune of Téssékéré, located in the north of Senegal, in a Sahelian environment, is characterized by a major socio-economic activity : semi-nomadic pastoralism. Long practiced in this area, the mid-twentieth century marks a turning point in the history of livestock farming. Indeed, the 1950’s are the subject of a vast campaign of borehole, reaching groundwater. If the official objectives of colonial public management policies were to meet growing water needs, the underlying ambition was to settle a population that was still mobile and difficult to tax. Subsequently, the progressive anthropogenic and bovine pressure, but also the episodes of droughts since the 1970’s, led to an ecological degradation of the environment. Qualified as sen...