Simulation results for and . For each small panel, the environmental cue is on the x-axis and phenotype on the y-axis. Each reaction norm is the population mean for one replicate simulation, and 100 replicates were performed for each combination of P and R. Red color shows reaction norms, where the population evolved reversible plasticity ( or , and ). Orange color shows reaction norms where reversible and anticipatory effects evolved (in addition ), blue color indicates that only developmental plasticity evolved ( or , and ), purple color indicates that both developmental plasticity and anticipatory effects evolved (in addition ), green color indicates that increased developmental variation evolved (), and black color indicates that there was no major change in reaction norm slope (). Note the logarithmic scale for R.