Summary Statistics

Tables of summary statistics generated from the threatened species database are made available here:

Tables 1 and 2 are organized by taxonomic group and show numbers of threatened species in all IUCN Red Lists from 1996 to the current Red List; these should be consulted to see a summary of overall changes in numbers of threatened species over recent years.

Tables 3 and 4 are organized primarily by taxonomic group; these should be consulted for example, to see a summary of the number of mammals assessed as threatened (table 4 is an expanded version of table 3).

Tables 5 and 6 are organized primarily by country; these should be consulted for example, to obtain a summary of the number of threatened mammals in any particular country.

The tables include information on full species ONLY (i.e., not subspecies, varieties or geographically isolated subpopulations or stocks). Previous country tables omitted certain wide-ranging marine species because they did not have country records in the database at the time. Since the release of the 2003 Red List, country records have been provided for marine species, where data are available, therefore, these also appear in the country tables (tables 5 and 6).

In the 2006 and previous Red Lists, the country tables displayed figures for species with confirmed and unconfirmed distributions within a country to match the figures obtained from a search of the web site. Since 2007, the Red List default search on specific countries or regions includes only certain distributions, reintroduced species and regionally extinct species (i.e., the default search excludes all uncertain distributions, introduced species and vagrant records). Users have also been provided with the option of including uncertain distributions, introduced species and vagrant species in their search if they wish, but the figures shown in the tables below will match the figures from a default search of the web site only.

Table 7 is organized primarily by taxonomic group; this table should be consulted to check which species have changed Red List status since the previous Red List update and the main reason for the status change.

Table 8 is similar to the country tables (tables 5 and 6), but but focuses on endemic species only (i.e., species occurring naturally within one country only) and only presents figures for species groups that have been completely assessed. This table should be consulted, for example, to check total number of endemic mammals and number of threatened endemic mammals within a particular country.

Table 1 - Numbers of threatened species by major groups of organisms (1996–2010).

Table 2 - Changes in numbers of species in the threatened categories (CR, EN, VU) from 1996 to 2010

Table 3a - Summary of number of animal species in each Red List Category in each taxonomic class

Table 3b - Summary of number of plant species in each Red List Category in each taxonomic class

Table 4a - Number of species in each Red List Category in each major animal taxonomic group (Class, Order)

Table 4b - Number of species in each Red List Category in each major plant taxonomic group (Class, Family)

Table 5 - Number of threatened species in each major group of organisms in each country (Critically Endangered, Endangered and Vulnerable categories only)

Table 6a - Number of extinct, threatened and other species of animals in each Red List Category in each country

Table 6b - Number of extinct, threatened and other species of plants in each Red List Category in each country

Table 7 - Species changing IUCN Red List category.

Table 8 - Total endemic and threatened endemic species in each country (totals by taxonomic group). The updated 2010.3 table will be available soon.