The study aims to test the performance of similarity analysis in herbaceous fodder biomass estimate in the Nigerian pastoral zone, in a context of insecurity and precipitation spatiotemporal variability.

This study was carried out in the pastoral zone of Niger with the aim to validating outputs of the BIOMASAH model developed by the AGRHYMET Regional Centre (ARC) relative to real data collected over the 2001 2011 period by the Ministry of Livestock and Animal Industries of Niger