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Trava [24]
3 years ago
6

Dora works for the International Union for Conservation of Nature. She and her team are involved in listing and delisting specie

s as per their status under the Red List of Threatened Species. According to their research, they find that the population of a certain species has declined by 45% over the last ten years. Under what level should they list these species?
A.
least concern
B.
extinct
C.
endangered
D.
vulnerable
Medicine
1 answer:
xenn [34]3 years ago
3 0

<u>Vulnerable</u> is the status used to refer the conservation status of a species if it declines by 45% over a period of 10 years according to IUCN’s Red List.

Explanation:

“The International Union for Conservation of Nature (IUCN) Red List of threatened species” provides comprehensive information about the conservation status of various organisms like animals, plants, and fungi present globally.

The Red List directly indicates the health or status of biodiversity in an ecological system or the world’s biodiversity.

The Red List classifies threatened species into – “Data deficient, least concern, near threatened, vulnerable, endangered, critically endangered, extinct in the wild, and extinct”.

The criteria followed by IUCN for classification are – “population reduction rate, the geographic extent of occurrence, population size, population restriction”.

Accordingly, if the number of species or population of species reduces or declines from 30% to 50 % or ≥50% then that species is classified as a vulnerable species. Vulnerable species are at high risk and protective measures have to be taken to protect them to prevent from becoming endangered species.

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