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Five techniques that are generally used in the western part of the grassland biome of southern Africa were evaluated. The techniques were tested on the mid-slopes (high species diversity) and pediments (low species diversity). The techniques were tested particularly with regard to their sensitivity for monitoring range condition changes. The Degradation Gradient Technique, as well as the Weighted Key Species Technique (to a lesser degree), appear to be the techniques best suited to this region at present. (C) 1997 Academic Press Limited.