Figure 3.
Inferred population size changes for populations without structure. For both panels the x axis represents time in generations, whereas the y axis represents population size in units of 104 diploids (an IICR of 0.5 corresponds to 500 × 10=5000 diploid genomes). (a) A panmictic population that experienced an exponential decrease from a previously constant size ancestral population. The solid blue line (theoretical IICR) was obtained using Equation (4). The dashed line represents the simulated demographic history and corresponds to the total number of haploid genomes (the actual size). The stepwise red solid curve (estimated IICR) was obtained using the simulated T2 values and Equation (21). (b) A history of stepwise population size changes is shown. The color codes are identical to (a). A full color version of this figure is available at the Heredity journal online.