Gamma probability distributions for family-specific parameter estimates. Estimated distributions for the family components of the Expansion rate, Gain rate, Loss rate, and Branch length parameters. Distribution for the original data shown in green (blue) for the FL2 (FL3) model. Distributions for all bootstrap replicates shown in gray. Green (blue) vertical lines represent the mean value of the estimator for each category, based on the original data for the FL2 (FL3) model. Error bars represent standard errors calculated from the bootstrap replicates.