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Data

Share of assessed species that are threatened with extinction

Of the species assessed for the IUCN Red List, the percentage listed as Critically Endangered, Endangered or Vulnerable, for all assessed species and for nine groups, in the current version of the Red List.

Latest value

28%

World (global Red List assessments), 2026. Version 2026-1.

Share of assessed species that are threatened with extinction (percent of assessed species)

10 values from 2026 to 2026. Lines: All assessed species, Mammals, Birds, Amphibians, Reptiles.
Show as a table
Share of assessed species that are threatened with extinction, every value
PeriodGroupValue (%)Status
2026All assessed species28final
2026Mammals23final
2026Birds11final
2026Amphibians36final
2026Reptiles18final
2026Ray-finned fishes13final
2026Sharks, rays and chimaeras33final
2026Insects19final
2026Plants39final
2026Fungi30final
Calculated by Environment Dashboard from IUCN (2026). The IUCN Red List of Threatened Species. Version 2026-1. https://www.iucnredlist.org. Downloaded on 2026-07-28. https://doi.org/10.15468/0qnb58 accessed via GBIF.org on 2026-10-05. CC BY 4.0. Changes: share of assessed species that are threatened calculated from the species' Red List categories. CC BY 4.0.

Where it comes from

Producer
International Union for Conservation of Nature (IUCN), published through GBIF · IUCN Red List of Threatened Species, version 2026-1 (GBIF checklist)
Version
2026-1
File
https://hosted-datasets.gbif.org/datasets/iucn/iucn-2026-1.zip
Fetched
2026-10-05 (automatically), 21,140,648 bytes
Fingerprint
sha256 2ed2c5f75667fa2dee9dc718406b5ba094fa9312e548934916b16c0c509ccb7dETag "14294a8-657ace70f2bf7" · Last-Modified Tue, 28 Jul 2026 14:46:22 GMT
Copies
No Wayback copy recorded yet.Our copy of the exact file
Cite the producer
IUCN (2026). The IUCN Red List of Threatened Species. Version 2026-1. https://www.iucnredlist.org. Downloaded on 2026-07-28. https://doi.org/10.15468/0qnb58 accessed via GBIF.org on 2026-10-05.

What was done to it

  1. Read meta.xml, eml.xml, taxon.txt and distribution.txt from the IUCN Red List version 2026-1 archive on GBIF; checked the column positions against meta.xml and the version against eml.xml's citation.

    Code: pipeline/src/envdash/transforms/nature/iucn_red_list.py · code sha256 704bf4c54d922f19… · inputs 2ed2c5f75667…

  2. Counted accepted taxa of rank species (175,909), each by the category of its single Global distribution row: Least Concern 91,357; Data Deficient 23,037; Endangered 20,372; Vulnerable 18,186; Critically Endangered 10,947; Near Threatened 10,259; Extinct 951; near threatened 442; least concern 160; conservation dependent 115; Extinct in the Wild 83. Left out accepted taxa below species (2 subspecies, 1,133 subspecies (plantae), 967 variety).

    Code: pipeline/src/envdash/transforms/nature/iucn_red_list.py · code sha256 704bf4c54d922f19… · inputs 2ed2c5f75667…

  3. Threatened = Critically Endangered + Endangered + Vulnerable. The lower-case categories are assessments under IUCN's 1994 criteria (Lower Risk) and are counted as not threatened.

    Code: pipeline/src/envdash/transforms/nature/iucn_red_list.py · code sha256 704bf4c54d922f19… · inputs 2ed2c5f75667…

  4. Groups, matched exactly on the archive's kingdom and class: Mammals: kingdom ANIMALIA, class MAMMALIA; Birds: kingdom ANIMALIA, class AVES; Amphibians: kingdom ANIMALIA, class AMPHIBIA; Reptiles: kingdom ANIMALIA, class REPTILIA; Ray-finned fishes: kingdom ANIMALIA, class ACTINOPTERYGII; Sharks, rays and chimaeras: kingdom ANIMALIA, class CHONDRICHTHYES; Insects: kingdom ANIMALIA, class INSECTA; Plants: kingdom PLANTAE; Fungi: kingdom FUNGI.

    Code: pipeline/src/envdash/transforms/nature/iucn_red_list.py · code sha256 704bf4c54d922f19… · inputs 2ed2c5f75667…

  5. Share = threatened species / all assessed species in the group × 100 (exact decimal arithmetic), with every category, including Extinct and Data Deficient, in the denominator.

    Code: pipeline/src/envdash/transforms/nature/iucn_red_list.py · code sha256 704bf4c54d922f19… · inputs 2ed2c5f75667…

What it covers

Geography
World (global Red List assessments)
Basis
Species assessed for the IUCN Red List (global assessments); threatened = Critically Endangered, Endangered or Vulnerable. Only assessed species are counted: birds, mammals, amphibians, sharks and rays are almost fully assessed, insects, plants and fungi only in small, non-random part, so their figures describe the assessed species, not the whole group. The period is the year of the Red List version. Denominator: all assessed species in the group, including Extinct, Extinct in the Wild and Data Deficient.
Unit
percent of assessed species (%)