Figure 4From: The population genetics of wild chimpanzees in Cameroon and Nigeria suggests a positive role for selection in the evolution of chimpanzee subspecies Isolation-by-distance. Results of a Mantel test performed to identify a correlation between genetic differentiation and the geographic distance between sampling locations (Figure 2). Points on the chart represent pairwise comparisons and the trend line represents linear correlation (p = 0.0045, R2 = 0.0186).Back to article page