Click on each GBPU to view which factors contribute to the overall GBPU rank. Each plot arm represents the relative contribution of Population/Isolation (0-4), Threat (0-2) and Trend (0-1). The coloured area represents the influence of each of the factors on the overall ranking. A larger coloured area represents greater risk to the GBPU and thus an increase in ranking. The colour represents the rank as shown in the map legend.