Figure 3

Functional redundancy and singularity across spatial scales. The scattered and saturating relationship between SR, FD (a) and PD (b), indicating an increasing degree of functional and phylogenetic redundancy at high levels of SR. Functional and phylogenetic singularity expressed as the proportion of functional groups or clades occupied by a single species in each area. (c,d) The points denote each ecoregion (gray), province (blue) and realm (red). The solid and dashed lines represent fitted non-linear relationships when including or excluding areas with poor taxonomic completeness, respectively.