Figure 1. Global terrestrial and marine biodiversity patterns. (a) Observed species richness derived from the distributions of 44,575 marine and 22,830 terrestrial species. Species richness is ln-transformed and rescaled within each domain (terrestrial and marine) and plotted on a 50 km equal 528 area grid.

Figure 1. Global terrestrial and marine biodiversity patterns. (a) Observed species richness derived from the distributions of 44,575 marine and 22,830 terrestrial species. Species richness is ln-transformed and rescaled within each domain (terrestrial and marine) and plotted on a 50 km equal 528 area grid.