Fig. 4

Empirical estimates of the proportion of heritable taxa (A) and the average taxon heritability, including all significantly heritable microbes (B), plotted against sample size, i.e., number of hosts sampled (note the log scale on the x axis). Dots depict values given in Table 1, where the numbers in each dot correspond to the column ‘Number’ in Table 1). Teal lines show the mean prediction based on A a binomial regression (here the number of trials is the number of taxa), and B a linear regression. In B, dotted lines connect average heritabilities to the lowest and highest significant heritability found in each study, shown as open dots