Fig. 2: Global spectrum of tree crown architecture.
Tree crown architectural types and their distribution across biomes for the 1309 tree species for which both height and crown size were measured. a Tree species were grouped into one of nine architectural types based on their size-standardized height (HRESID) and crown diameter values (CDRESID). The vertical and horizontal lines mark the 25th and 75th percentile of the data and the size of each circle reflects the crown aspect ratio (CARRESID). Examples of tree species that occupy different areas of this crown architectural spectrum are highlighted. b Proportion of species belonging to the nine architectural types for each biome. See Supplementary Table 4 for pairwise comparisons of HRESID, CDRESID and CARRESID values among biomes, and Supplementary Fig. 5 for a breakdown of the nine architectural types among angiosperms and gymnosperms.
