Figure 7.

Relationship between population size N and genetic diversity at varying intensities of selection. Nucleotide diversity represents mean pairwise proportion of sequence differences between random individuals in the population. Diversity estimates are taken from 10⁵ generations across 3 replicate simulations. Neutral dynamics are shown as a dashed line. Selective dynamics are shown as solid lines. In each case, 1% of mutations are selectively advantageous, with a selective advantage s of 0.001, 0.01 or 0.1.