Rupela, O P and Wani, S P and Rego, T J (2002) Managing and harnessing soil flora/fauna biodiversity for sustainable crop production in the semi-arid tropics. In: Beyond the gene horizon: sustaining agricultural productivity and enhancing livelihoods through optimization of crop and crop-associated biodiversity with emphasis on semi-arid tropical agroecosystems. Proceedings of a workshop, 23-25 September 2002, Patancheru, India.