Within each quadrat, three or four people systematically searched the ground and vegetation, attempting to collect all
snails 10 mm in diameter (¼adults and near-adults). The snails were returned to their quadrat of capture within 2
weeks. along the transect, reducing the area of the Open habitat. On average, 15.5 quadrats were censused in the Acacia habitat (range 7–23) and 7.7 quadrats in the Open habitat (range 4– 15).