Figure 1From: The population genetic structure of Biomphalaria choanomphala in Lake Victoria, East Africa: implications for schistosomiasis transmissionMap of the 29 study sites around Lake Victoria. “Single habitat” sites (marked by grey circle) denote an area with a single habitat (lake or marsh); “Joint habitat” sites (marked by black circle) indicate localities where a marsh and lake habitat were found together, and snails collected separately from each.Back to article page