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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
Answer the following question:
Substantiate with the help of one example that in an ecosystem mutualists
(i) tend to co-evolve and
(ii) are also one of the major causes of biodiversity loss.
Species that possess a very high risk of extinction due to population decline of about 30 - 50 % over past 10 years are categorized as _______.
Currently, ______ mass extinction is considered to be the progressing at an alarming rate due to the loss of biodiversity.
'The Evil Quartet' is a concept which describes the ______.
Which of these is NOT amongst the effects of loss of biodiversity?
Explain the concept of "co-extinction" by taking two examples.
Red Data Book is maintained by ______.
The current global biodiversity crisis is described as an ongoing mass extinction with extinction rates estimated to be how many times higher than earlier natural rates?
Which of the following sets correctly lists all extinct (EX) species mentioned in the IUCN classification?
Which of the following represents the correct pairing of species to IUCN category?
