redlistr - Tools for the IUCN Red List of Ecosystems and Species
A toolbox created by members of the International Union
for Conservation of Nature (IUCN) Red List of Ecosystems
Committee for Scientific Standards. Primarily, it is a set of
tools suitable for calculating the metrics required for making
assessments of species and ecosystems against the IUCN Red List
of Threatened Species and the IUCN Red List of Ecosystems
categories and criteria. See the IUCN website for detailed
guidelines, the criteria, publications and other information.