Figure 5

Changes in genetic differentiation (fixation index, Fst) pre- vs. post-tsunami populations. The x-axis shows geographic distances between populations, while the y-axis indicates Fst. Numbers in white and black circles represent pre- and post-tsunami Fst values, respectively, based on the following comparisons: 1, HRU vs. USB; 2, USB vs. MTK; 3, HRU vs. MTK; 4, KTK vs. HRU; 5, KTK vs. USB; 6, KTK vs. MTK; 7, MTK vs. THN; 8, USB vs. THN; 9, AMG vs. KTK; 10, HRU vs. THN; 11, AMG vs. HRU; 12, KTK vs. THN; 13, AMG vs. USB; 14, AMG vs. MTK; and 15, AMG vs. THN. Dashed lines represent Fst combination with THN. Population locations and abbreviations are shown in Fig. 2 and Supplementary Table S1. Geographic distances between populations and AMOVA results are reported in Supplementary Table S2.