6533b860fe1ef96bd12c311a

RESEARCH PRODUCT

Figure S1 from Nonlinear trade-offs allow the cooperation game to evolve from prisoner's dilemma to snow drift

subject

description

Comparing Monte Carlo and numerical solutions for evolved values of i. Solutions obtained as described in Materials and Methods. Individual points represent i values obtained by the Monte Carlo (MC) and numerical solutions. MC simulations were run for 10,000 generations with population size of N = 500m, where m is group size, and a mutation rate of u = 0.2 and a Gaussian distribution of mutational effects with mean zero and standard deviation = 0.005. Populations generally reach equilibrium values after 1000 generations (figure 2A). Reported values of i are the mean value at the last generation. The parameter space represented in figures 4A-D was explored by letting m range from 2, 3, 4, …, 10 and 1 + e from 1, 1.1, 1.2, …, 3.0. Values of i corresponding to PD (+) and SD (●). The match between MC and numerical solutions yielded a value of r2 = 0.96.