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प्रश्न
Enlist any six categories into which a given species is placed once it has been thoroughly evaluated by IUCN.
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उत्तर
After a given species has been thoroughly evaluated, it is placed into one of following several categories.
- Extinct (EX): A designation applied to species in which the last individual has died or is not recorded.
- Extinct in the Wild (EW): A category containing those species whose members survive only in captivity.
- Critically Endangered (CR): A category containing those species that possess an extremely high risk of extinction with very few surviving members (50).
- Endangered (EN): A designation applied to species that possess a very high risk of extinction as a result of rapid population decline of 50 to more than 70 percent over the previous 10 years (or three generations).
- Vulnerable (VU): A category containing those species that possess a very high risk of extinction as a result of rapid population decline of 30 to more than 50 percent over the previous 10 years (or three generations).
- Near Threatened (NT): A designation applied to species that are close to becoming threatened or may meet the criteria for threatened status in the near future.
संबंधित प्रश्न
What are the major causes of species losses in a geographical region?
With the help of any one example explain Alien species invasion as one of the causes of Biodiversity losses.
Species that possess a very high risk of extinction due to rapid population decline of about 50 - 70 % over three generations is designated as ______.
Accroding to IUCN Red list, the status of Antilope is ____________.
Match the animals given in column I with their location in column II:
| Column I | Column II |
| A. Dodo | i. Africa |
| B. Quagga | ii. Russia |
| C. Thylacine | iii. Mauritius |
| D. Stellar's sea cow | iv. Australia |
Choose the correct match from the following:
What could have triggered mass extinctions of species in the past?
What is common to the species shown in figures A and B?
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 |
| A | B |
Of the four major causes for the loss of biodiversity (Alien species invasion, habitat loss and fragmentation, over-exploitation and co-extinctions which according to you is the major cause for the loss of biodiversity? Give reasons in support.
Though the conflict between humans and wildlife started with the evolution of man, the intensity of conflict has increased due to the activities of modern man. Justify your answer with suitable examples.
What is the sustainable use of resources?
