Fig. 4.

a Elemental ratios within cells as a function of the environmental ratio and cell size (dark blue is the smallest and light yellow is the largest cells), where the ecosystem is composed of only a single cell size. The dashed line is the one-to-one line. b The differences between cell stoichiometric ratios and the environment as a function of the nitrogen inflow, $N_{\mathit{in}}$, which is also the parameter being varied in a