Drylands cover more than forty-one per cent (41%) of the world’s as well as Africa’s land surface, ver sixty-seven per cent (67%) of the eastern and southern Africa region, and about eighty-nine per cent (89%) of Kenya’s landmass. These areas are quite diverse with highly heterogeneous biological biomes that constitute various sub-ecosystems in one. These include the arid and semi- arid ecosystems, deserts, wetlands, forests, grasslands, bushlands, woodlands, agro-ecosystems, among others.