Figure 4. Clustering of 1,500 Prunus africana observations based on level of similarity of bioclimatic variables.

Bioclimatic values for 19 variables were associated with all P. africana records. Bioclimatic values were extracted from 2.5 minute rasters obtained from the Worldclim website. The observation points are grouped (each cluster is highlighted with a different colour) by Euclidean distance.