Figure 8

Phylogenetic distance (phylo dist) against phenotypic distance (pheno dist). We computed phylogenetic trees of all runs with local feedback (for an example tree see additional file 2: Figure S1), and for each run we sampled a 1000 random pairs of individuals with a time of birth difference < 20 time steps and traced their last common ancestor. The phylogenetic distance is the difference in time of birth between the pair and their ancestor. Phenotypic distance is expressed as the Manhattan distance between two phenotypes. The colors, as given in the legend, give the number of pairs averaged over 25 runs. Note that the regular spacing in the data of B and C is an artifact of the periodicity of logging populations. Low, average and high selection are shown in A, B and C respectively (σ = 0.2, 1.0 and 5.0).