Fig. 3.

The comparison between predicted viral spillover risk and (a) zoonotic virus diversity estimate (Fig. 1), (b) human population density (Fig. S2), and (c) species richness (Fig. S3). We used our predicted spillover risk minus the factor being compared, so positive (or red colour) indicates the predicted viral spillover risk is larger, and conversely negative (or blue colour) values indicate the zoonotic virus diversity estimate, human population density, and species richness are larger, respectively. These maps are created by defining the data range that the colour map covers to −1 and 1. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)