Nature 410, 655–660 (2001).

Equation (1) of this Article was incorrect as printed. The total biomass, MTot, per unit area is the summation, or integral, across the size distribution of the number of individuals per unit area, multiplied by their body mass. Thus MTot = ∫abMN(M)dM. Because the number of individuals in a given area is an allometric function of their size, M, we can substitute the observed relationship N = CmM-3/4 to yield the community biomass equation:

This change does not affect any of the reported conclusions or empirical patterns.