Figure 3.

(a) The abundance density N versus individual size m of a number of populations with varying asymptotic sizes given by equation (A 2) (solid lines) and the community spectrum (dashed line, elevated for clarity). (b) The distribution of individual growth efficiencies p(ϵ_I) for different values of the predator–prey mass ratio β. The x-axis is normalized with the assimilation efficiency α and the average growth efficiency $\overline{{ϵ}_{\text{I}}}$ is shown with the arrow for β=100.