Predicted genotypic frequencies, weights and fitnesses.

Genotypic frequencies of 4 and 8 year old predicted by the gam model in Figure 6. Upper and lower are frequencies ��2 standard errors. Weights, Ui, are ratios of frequencies among 8 year old to 4 year old. Ratios of upper to lower and lower to upper frequencies are used for predictions of best-case and worst-case scenarios respectively. The table is arranged accordingly with lower to upper and upper to lower for each genotype. Fitnesses, Wi, are weights scaled to the most fit BB genotype.