Extended Data Fig. 7: Functional uniqueness calculation.
From: Threat reduction must be coupled with targeted recovery programmes to conserve global bird diversity

Functional uniqueness describes the proportion of the community probability distribution that was composed of the species probability distribution. Proportions were summed across cells in which the species probability distribution was greater than 0, with a weight proportional to the probability of species occurrence in that cell, indicated by the height of the species probability distribution.