Fig. 2: Global distribution of estimated vascular plant alpha diversity in non-forest ecosystems.
Spatial grains: A 10 m2; B 100 m2; C 1000 m2. The maps on the left show the median estimated species richness at the corresponding spatial grain for each 2.5 arcminute grid cell of the World, averaged across 99 boosted regression tree models based on different resampled datasets. Colors are on a log2 scale. The maps on the right show the distribution of hotspots (red) and coldspots (blue), i.e., areas where species richness is above the 95th or below the 5th global percentile, respectively. We only show alpha diversity estimates for locations where the land cover ‘herbaceous vegetation’ occurs based on a consensus map that integrates multiple global remote sensing-derived land-cover products209. Hatching represents data-poor regions, i.e., regions farther than 500 km from any vegetation plots, for which we did not generate predictions. Global maps with predictions for these data-poor regions can be found in Supplementary Fig. 5. Values are averaged over 2600 km2 hexagons. Source data are provided as a Source Data file.
