Figure 4.

Variances divided by population size, N as a function of N. The values obtained from stochastic simulations — N0(×), N1(엯), N2(+), N3(*), N4(◻), N5(◇), N6(▿), N7(▵) — agree with the values predicted by Eq. 34 (solid lines). The time and other parameters are the same as in Fig. 3. The error bars are one standard error.