Figure 2.

Example of evolutionary dynamics of individual and social learning in one population. Population size n = 300, J = 70 steps, number of generations G = 2000, memory factor α = 0.5, probability of erroneous joining β = 0, probability of social learning error θ = 0. Phenotype numbers are as specified in table 2. Phenotype 8, F₂L₁I₀C₁, which dominates the population from approximately generation 250, is the part-time scrounger that applies exclusive social learning and a complex learning rule.