Fig. 4From: Spatio-temporal variations of emerging sites infested with schistosome-transmitting Oncomelania hupensis in Hunan Province, China, 1949–2016Anselin local Moran's I clustering of durations among a inner embankments, b in marshlands and c in hills. The pink parts indicate HH clusters where snails were in aggregation. The red and blue parts indicate HL outliers and LH outliers where snails may spreadBack to article page