Figure 2.
Maternal and juvenile productivities shown in relation to adult body mass in grams in log–log plots. (a) Juvenile biomass production, measured as per cent increase per year as in equation (2.3). (b) Annual biomass production by adult females, expressed in units of grams produced per gram of mother per year, i.e. year−1. In both plots, each point refers to a single species and points are colour-coded by order, except that Carnivora species are split into terrestrial carnivores (Fissipedia) and marine carnivores (here just the income-breeding sea lions and walruses). The same species are plotted in both panels. A scale for juvenile body mass, referred to in the Discussion, has been inserted above (a).