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  2. Conservation status - Wikipedia

    en.wikipedia.org/wiki/Conservation_status

    The IUCN Red List of Threatened Species by the International Union for Conservation of Nature is the best known worldwide conservation status listing and ranking system. . Species are classified by the IUCN Red List into nine groups set through criteria such as rate of decline, population size, area of geographic distribution, and degree of population and distribution fragmenta

  3. Endangered species - Wikipedia

    en.wikipedia.org/wiki/Endangered_species

    Endangered species are addressed through Canada's Species at Risk Act. A species is deemed threatened or endangered when it is on the verge of extinction or extirpation. Once a species is deemed threatened or endangered, the Act requires that a recovery plan to be developed that indicates how to stop or reverse the species' population decline. [33]

  4. Bird conservation - Wikipedia

    en.wikipedia.org/wiki/Bird_conservation

    Humans have had a profound effect on many bird species. Over one hundred species have gone extinct in historical times, although the most dramatic human-caused extinctions occurred in the Pacific Ocean as humans colonised the islands of Melanesia, Polynesia and Micronesia, during which an estimated 750–1,800 species of birds became extinct. [1]

  5. IUCN Red List - Wikipedia

    en.wikipedia.org/wiki/IUCN_Red_List

    Endangered (EN) – very high risk of extinction in the wild, meets any of criteria A to E for Endangered. Vulnerable (VU) – meets one of the 5 Red List criteria and thus considered to be at high risk of unnatural (human-caused) extinction without further human intervention. Near Threatened (NT) – close to being endangered in the near future.

  6. Wikipedia:Conservation status - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Conservation_status

    PE and PEW (Probably Extinct and Probably Extinct in the Wild) are not official IUCN categories, but PE has been adopted by Birdlife International, and the terms appear within the IUCN Red List entries. EX = Extinct EW = Extinct in the wild CR = Critically Endangered EN = Endangered VU = Vulnerable NT = Near Threatened LC = Least Concern DD ...

  7. 21 species no longer endangered — because they’re extinct ...

    www.aol.com/news/21-species-no-longer-endangered...

    The species — several birds, mussels, two species of fish and the Little Mariana fruit bat last seen in Guam in 1968 — have been listed as endangered for decades, according to the U.S. Fish ...

  8. List of endangered birds - Wikipedia

    en.wikipedia.org/wiki/List_of_endangered_birds

    For a species to be considered endangered by the IUCN it must meet certain quantitative criteria which are designed to classify taxa facing "a very high risk of extinction". An even higher risk is faced by critically endangered species, which meet the quantitative criteria for endangered species. Critically endangered birds are listed ...

  9. List of vulnerable birds - Wikipedia

    en.wikipedia.org/wiki/List_of_vulnerable_birds

    See: List of endangered birds, List of critically endangered birds. Vulnerable, endangered and critically endangered species are collectively referred to as threatened species by the IUCN. Additionally, 53 avian species (0.48% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full