Fig. 2: Trajectories and latitudinal trends of future changes in macrophyte species diversity.
From: Projected loss of brown macroalgae and seagrasses with global environmental change
a, c brown macroalgae, b, d seagrasses. We computed change as loge percentage change84 in the 2100 diversity compared to 2015 diversity (100 × loge[diversity2100/diversity2015]). The upper panels (a, b) report the mean trajectories (solid lines) and the 95% confidence interval (shaded area) in local macrophyte diversity (i.e., number of macrophyte species in every 0.5° × 0.5° latitude/longitude grid cell) relative to 2015. We aggregated data at 5-year intervals. Lower panels (c, d) show expected future changes in diversity as loge percentage change relative to 2015 diversity averaged across latitudes (0.5° × 0.5° latitude/longitude resolution). Gains in species diversity are shown in blue, and losses in red. Plots refer to an intermediate emissions scenario (SSP3-7.0), and analogous graphs for the more optimistic (SSP2-4.5) and more pessimistic (SSP5-8.5) scenarios are in the Supplementary Information (Supplementary Figs. 6 and 7).
