Endangered Species: Definition and Meaning, IUCN Red List, Factors Affecting Endangered Species (For CBSE, ICSE, IAS, NET, NRA 2022)

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Definition and Meaning

  • Endangered species can be defined as all those species which are under risk or threat of being extinct.
  • In simple words, species which are about to extinct are called endangered species.
  • These species are likely to become extinct soon either worldwide or in a political jurisdiction.
  • Some of the examples are Greater Horseshoe Bat, Loggerhead turtle, Siberian tiger, White-tailed eagle, and Bluefin tuna etc.

The International Union for Conservation of Nature (IUCN) Red List

  • IUCN is headquartered at Gland in Switzerland.
  • This organization lists the global conservation status of many species. This includes “Data Deficient” (DD) species.
    • Species for which more data and assessment is required before their situation may be determined.
    • Species comprehensively assessed by the IUCN՚s species assessment process.
  • Also, many other organizations like WWF (World Wildlife Fund) assess the status of species within areas.
  • Endangered ″ (EN) species lie between ″ Vulnerable ″ (VU) and ″ Critically Endangered ″ (CR) species.
Globally Threatened

Factors Affecting Endangered Species

Factors Affecting Endangered Species

Near-Threatened Species

  • Those species which have been categorized as “Near Threatened” (NT) by the International Union for Conservation of Nature.
  • These species may be considered threatened with extinction soon.
  • They do not qualify for the threatened status currently.
  • Some of the examples are European otter, maned wolf, the grey bat, etc.

Least Concerned Species

  • These species have been categorized by the International Union for Conservation of Nature (IUCN) as evaluated not being a focus of species conservation.
  • These species do not qualify as threatened, near threatened, or (before 2001) conservation dependent.
  • This is not concerned a red listed category by the IUCN.
  • Some of the examples are Amphibians, birds, mammals, reptiles, etc.

Vulnerable Species

  • These species are likely to become endangered as per the International Union for Conservation of Nature (IUCN) .
  • This can be prevented by improving the survival and reproduction of these species.
  • This is caused by habitat loss or destruction of the species home.
  • Some of the examples of vulnerable species are military macaw (Ara militaries, a large parrot) , Nilgiri Marten, Barasingha, Wild goat, etc.

Critically Endangered Species

  • These species are facing an extremely high risk of extinction in the wild.
  • Some of the examples are Addax Nasomaculatus, Be tragus hunter, Cephalous adersi, etc.

Invasive Species

  • These are the non-indigenous species whose presence to an area can disrupt the ecosystem to such an extent that native species become endangered.
  • It has been observed that the invasive species compete with the native species for food or prey on the natives.
  • It is very much possible that the native species may not have resistance to the diseases being carried out by the new species.
  • Some of the examples are Alternanthera philoxeroides, Cassia uniflora, Chromolaena odorata, etc.

Ways to Protect Endangered Species

  • By learning about the endangered species in the area.
  • Visiting a national wildlife refuge, park, or other open space from time to time.
  • Recycling and buying sustainable products.
  • Making homes wildlife friendly.
  • Protecting wildlife habitats.
  • Severe punishment for those harassing wildlife.


Q 1. List out the factors affecting endangered species.


The factors affecting the endangered species are:

i) Hunting

ii) Loss of habitat

iii) Climate changes

iv) Diseases

v) Deforestation

Q 2. What are the examples of vulnerable species?


Some of the examples of vulnerable species are:

i) Military macaw (Ara militaries, a large parrot) ,

ii) Nilgiri Marten

iii) Barasingha

iv) Wild goat

Q 3. What are the seven endangered animal species in India?


The seven endangered animal species in India as per National Endangered Species Day 2020 are:

i) Asiatic Lion

ii) Bengal tiger

iii) Snow Leopard

iv) Nilgiri Tahr

v) Kashmiri Red Stag

vi) Blackbuck

vii) One- horned rhinoceros

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