Figure 1From: Stirred, not shaken: genetic structure of the intermediate snail host Oncomelania hupensis robertsoni in an historically endemic schistosomiasis areaSampling sites of Oncomelania h. robertsoni. Sampling sites in the Deyang-Mianyang area, Sichuan Province, China. For site codes see Table 3 (A = Anxian County, J = Jingyang County, Z = Zhongjiang County). LandSat base map taken from MrSID (NASA). Note the Longquan Mountain Range (max. altitude > 1000 m) separating the southernmost site Z3 from the remaining sampling sites. The insert shows the location of the area in China.Back to article page