Fig. 3 | Nature Communications

Fig. 3

From: Uncertainty about social interactions leads to the evolution of social heuristics

Fig. 3

The most common context-dependent and heuristic strategies that evolved for various levels of uncertainty about social situations. Each bar shows the fractions of 5000 replicate simulations that were dominated by the strategies shown below (a strategy was considered to dominate if it constituted more than 80% of the population by the end of the evolutionary simulation). The most common context-dependent strategies are shown in orange. These strategies are defined by two substrategies and a threshold (T; if the individual perceives c to be below this value, substrategy 1 is implemented; otherwise, substrategy 2 is implemented). Each substrategy is defined by five genes, which determine whether the individual cooperates (C) or defects (D) given the outcome of the four possible outcomes of the previous round (Fig. 1), and by a locus that determines the probability that the individual cooperates in the first interaction round. The last column gives the cooperation rate in a population that consists only of individuals implementing the given strategy. The most common heuristic strategies are shown in blue (these implement the same strategy independent of specifics of the social interaction at hand). Black bars show simulation runs in which no single strategy achieved a frequency above 0.8