What are the 7 categories of the IUCN Red List?
What are the 7 categories of the IUCN Red List?
The IUCN Red List Categories and Criteria are intended to be an easily and widely understood system for classifying species at high risk of global extinction….
- Data Deficient (DD)
- Least Concern (LC)
- Near Threatened (NT)
- Vulnerable (VU)
- Endangered (EN)
- Critically Endangered (CR)
- Extinct In The Wild (EW)
- Extinct (EX)
What are the 7 levels of classifications for endangered species?
The Red List has seven levels of conservation: least concern, near threatened, vulnerable, endangered, critically endangered, extinct in the wild, and extinct. Each category represents a different threat level.
What species is threatened?
Under the Endangered Species Act in the United States, “threatened” is defined as “any species which is likely to become an endangered species within the foreseeable future throughout all or a significant portion of its range”. It is the less protected of the two protected categories.
What are further categories of threatened category of IUCN?
In descending order of threat, the IUCN Red List threat categories are as follows: Extinct or Extinct in the Wild. Critically Endangered, Endangered and Vulnerable: species threatened with global extinction.
What are red data lists used for?
A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit. The IUCN Red List is set upon precise criteria to evaluate the extinction risk of thousands of species and subspecies.
What is the IUCN Red List used for?
The IUCN Red List is used to inform decisions taken by Multilateral Environmental Agreements. It is often used as a guide to revise the annexes of some important international agreements, such as the Convention on International Trade in Endangered Species (CITES) and the Convention on Migratory Species (CMS).
What comes before extinct?
An endangered species is a type of organism that is threatened by extinction. Species become endangered for two main reasons: loss of habitat and loss of genetic variation.
What is not extinct?
Species that are not globally extinct are termed extant. Those species that are extant, yet are threatened with extinction, are referred to as threatened or endangered species.
Which animal is closest to extinction?
Javan rhino
The Javan rhino is the closest to extinction with only between 46 to 66 individuals left, all of which are in Ujung Kulon National Park in Indonesia.
How is the IUCN Red List used?
How many species of hirola are there in the world?
Some believe that the African peoples of the region knew of its existence even before this “discovery”. It is the only member of the genus Beatragus. The global hirola population is estimated at 300–500 animals and there are none in captivity.
Where are the hirola trees found in Kenya?
Hirola are restricted to an area of approximately 7,600 km² along the border of Kenya and Somalia. In Kenya the species is found in the Ijara, Garissa, Tana River and Lamu districts. There is a small translocated population in Tsavo East National Park, outside the species’ natural range.
What are the names of the wildebeest and hirola?
The Alcelaphinae contains hartebeest, wildebeest and topi, korrigum, bontebok, blesbok, tiang and tsessebe. When it was first described the hirola was given the common name Hunter’s hartebeest. Despite this it was placed in the genus Damaliscus with the topi and given the scientific name Damaliscus hunteri.
How long does a hirola live in captivity?
There is no data on how long hirola live in the wild but hirola in captivity have been known to live for 15 years. Authorities agree that the hirola belongs in the subfamily Alcelaphinae within the family Bovidae but there has been debate about the genus in which it should be placed.