Additional file 1 of The key role of cheaters in the persistence of cooperation

Additional file 1. Section I, Incorporating individual death into the model. Section II, Threshold relation between model parameters in high survival regime - derivation of equation five in the main text. Section II, Supplementary figures. Figure S1, Survival of groups for different values of model parameters. Figure S2, Competition outcome between groups of social and asocial individuals in the case of relative fitness advantage. Figure S3, Competition outcome between groups of social and asocial individuals in the case of absolute fitness advantage.