Figure 3
From: Photosynthetic usable energy explains vertical patterns of biodiversity in zooxanthellate corals
Relationship between the distribution of coral species richness and the water optical properties. (a) Vertical attenuation coefficient for downwelling irradiance (Kd) versus the depth of maximum diversity by location. A power function depicted in the figure was used to fit a linear regression to the data. (b) Variation in coral species richness along a light intensity gradient determined by the local Kd. Relative light exposure is reported in % of sea surface. The overall data was fitted using a gaussian function (continuous line) with 95% confidence intervals (discontinuous lines).
