Science Advances

Supplementary Materials

This PDF file includes:

  • Fig. S1. Four theoretical abundance distributions fitted to a data set for birds from Poland (33), which has the highest species richness of any complete sample for this group included in this analysis.
  • Fig. S2. Characteristic rank abundance distributions of six additional taxonomic groups in tropical and temperate zones based on Fig. 2.
  • Fig. S3. Predicted and actual dominance in four disparate groups based on the double geometric distribution.
  • Fig. S4. Predicted and actual dominance in six additional groups based on the double geometric distribution.
  • Fig. S5. Predicted and actual median relative abundances in four disparate groups based on the double geometric distribution.
  • Fig. S6. Predicted and actual median relative abundances in six additional groups based on the double geometric distribution.
  • Fig. S7. Predicted and actual dominance and median relative abundance based on the broken stick and Zipf distributions.
  • Fig. S8. Mean and median abundances observed in relatively well-sampled distributions.
  • Table S1. Medians of the fit of the six theoretical abundance distributions to observed frequencies as measured by K-L divergence statistics.
  • Table S2. Means of the fit of the six theoretical abundance distributions to observed frequencies.
  • Table S3. Results of tests for differences between distributions of K-L divergence statistics.
  • Appendix S1. R code used to perform the analyses.
  • Reference (33)

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