Fig. 1a. The number of species in the model ecosystem is plotted over time for the case p = .05 and variance parameter s = .4 from a normal distribution.
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Fig. 1b. (left) The corresponding distribution of species diversity of such communities is plotted for three different mean interaction strengths s; (right) plotted in logarithmic axes the rising portion of the curves show power-law behavior (the decay is gaussian).
Fig. 2a. The coefficient of variation (CV) plotted for communities with different mean number of species for three different connectance levels C.
Fig. 2b. The normalized return time to equilibrium plotted for communities with different mean number of species for three different connectance levels C.
Fig. 3. The distributions of extinction cascades is plotted for communities with a mean of (top) 20 species, (center) 52 species and (bottom) 98 species.