Mains Paper II · 4 Environment & Ecology · 4.3 Biodiversity and species

4.3.5 IUCN Red List: categories and criteria

The IUCN Red List, kept by the International Union for Conservation of Nature, grades species by their risk of extinction into nine categories; three of them — Critically Endangered, Endangered and Vulnerable — together make up "threatened".

  • APPSC Group 2 · Mains Paper II
  • Advanced level
  • 7 min read
  • Full course

Key terms

  • IUCN
  • Red List
  • Red Data Book
  • critically endangered
  • endangered
  • vulnerable
  • threatened
  • criteria A to E
  • Green Status
  • Gland

What this note covers

  1. Core factsFoundation
  2. ExplainedStandard
  3. DeeperAdvanced
  4. Mains writingMains writing
  5. Common trapsFoundation
  6. Quick revisionFoundation

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