Fig. 3From: Evolving mutation rate advances the invasion speed of a sexual speciesExperiment 2: fixed dispersal probabilities. The average values of the mutation rate during and after range expansion across the gradient (horizontal axis) is shown in time (gray scaling from light to dark, as time proceeds, which is given in a sequence of generations 500, 1000, 1500, 5000) under a. a fixed dispersal probability of 0.05, b. a fixed dispersal probability of 0.1, and c. a fixed dispersal probability of 0.2Back to article page