| Rarity-package | A package to calculate rarity indices for species and assemblages of species for conservation studies | 
| corPlot | Correlation plots | 
| Irr | Index of Relative Rarity | 
| Irr-method | Index of Relative Rarity | 
| Isr | Index of Summed Rarity | 
| Isr-method | Index of Summed Rarity | 
| Rarity | A package to calculate rarity indices for species and assemblages of species for conservation studies | 
| rWeights | Calculation of rarity weights at a single or at multiple scales | 
| rWeights-method | Calculation of rarity weights at a single or at multiple scales | 
| spid.occ | Occurrences of spiders of Western France at two different scales. |