Table 1 Regressions of actual dominance on predicted dominance (Fig. 3) and median offsets between actual and predicted dominance based on the fit of six theoretical abundance distributions to the full data set.

The double geometric outperforms all other models with respect to the slope, intercept, and offset.

DistributionCorrelationSlopeInterceptOffset
Double geometric0.94970.99400.0089−0.0019
Lognormal0.97321.0327−0.04390.0314
Geometric series0.90450.92140.0614−0.0285
Log series0.94831.0144−0.02860.0162
Broken stick0.66121.03920.1260−0.1044
Zipf0.91241.0764−0.15200.1303