| c2cv | Comparison of 2 values of species richness using a randomization procedure |
| c2m | Compares 2 mean values using a randomization test |
| ea | Soil macrofauna in a tropical field under traditional slash-and-burn (Elahe, French Guiana) |
| ef | Soil macrofauna in a tropical forest site (Elahe, French Guiana) |
| efea | Soil macrofauna in a tropical forest site and cultivated plot (traditional slash-and-burn, Elahe, French Guiana) |
| efeb | Soil macrofauna in a tropical forest site before and after deforestation (traditional slash-and-burn, Elahe, French Guiana) |
| rarc | Computes rarefaction curves and statistical envelop |
| raref | Estimates the species richness for a given number of sampled individuals on the basis of the corresponding rarefaction curve |
| raref2 | Estimates the species richness for a given number of sampled individuals on the basis of the corresponding rarefaction curve |
| rich | Species richness, their confidence interval and other useful indices |
| shared | Computes the number of species shared by groups of sampling units and other useful statistics |
| Tomicus | Maximum temperature at sites hosting 2 species of closely related bark-beetles of genus Tomicus |