Fig. 7: Impact of a flood on the genetic composition of stickleback in the marsh.

Shown is the distribution of the frequency of the stream allele across 49,677 SNPs exhibiting strong lake-stream differentiation (AFD ≥ 0.75 in the comparison between the lake pool [sites L1 and L2 combined] and the stream pool [sites S6 and S7 combined]) in stickleback sampled at the marsh site M1 at three different time points. The median and mean of the distributions are also given. Source data are provided as a Source Data file.