Fig. 3

Pairwise F_ST for: a) Dataset 1 and b) Dataset 2. Black empty circles depict the pairwise F_ST for pairs of sites within the same rank of distances whereas filled red circles dots depict the median for each class. Both trends are highly significant and reveal increasing levels of differentiation correlating with the rank of distances: τ = 0.899, P ≤ 2.22 e-16; τ = 0.895, P = 1.79 e-06 and τ = 0.871, P < 2.22 e-16 for a) and b), respectively