Red List Index, 2022

The Red List Index shows trends in overall extinction risk for groups of species. It is an index between 0 and 1. A value of 1 indicates that there is no current extinctionrisk to any of the included species. A value of 0 would mean that all included species are extinct.

No data0.30.40.50.60.70.80.91
World

Source: Birdlife International and International Union for Conservation of Nature

Note: Extinction risk estimates for mammals, birds, cycads, amphibians and corals are used to calculate the Red List Index. National and regional Red List Indices are calculated by weighting by the fractionof each species' distribution occurring within them.