Abstract
Ground-based biomass measurements, systematic aerial reconnaissance and NOAA AVHRR and Landsat data were used to define the geographic limits of dry season pasture in the southern part of the pastoral zone of Niger. This dry season pasture, referred to as the pastoral habitat, was of such overwhelming importance to the well-being of the pastoral system that it could be used to define the sample frame for a meso-scale drought early warning system. Normalized rainfall departures for 1957 to 1987 from multiple sites in the pastoral habitat inferred the common perceptions of recent interannual climatic variations in Niger and their impacts on the pastoral economy.
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