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Critically endangered

From Wikipedia, the free encyclopedia Main page Contents This article is about the conservation designation itself. For lists of critically endangered species, see Lists of IUCN Red List Critically Endangered Featured content species. Current events A critically endangered (CR) species is one which has been categorized by the International Union for Random article Conservation status Conservation of Nature (IUCN) as facing an extremely high risk of extinction in the wild.[1] Donate to Wikipedia by IUCN Red List category Wikipedia store As of 2014, there are 2464 animal and 2104 plant species with this assessment, compared with 1998 levels of 854 and 909, respectively.[2] Interaction

Help As the IUCN Red List does not consider a species extinct until extensive, targeted surveys have been About Wikipedia conducted, species which are possibly extinct are still listed as critically endangered. IUCN maintains a list[3] Community portal of "possibly extinct" CR(PE) and "possibly extinct in the wild" CR(PEW) species, modelled on categories used Recent changes by BirdLife International to categorize these taxa. Contact page Contents Tools Extinct 1 International Union for Conservation of Nature definition What links here Extinct (EX) (list) 2 See also Related changes Extinct in the Wild (EW) (list) 3 Notes Upload file Threatened Special pages 4 References Critically Endangered (CR) (list) Permanent link 5 External links Endangered (EN) (list) Page information Vulnerable (VU) (list) Wikidata item Cite this page International Union for Conservation of Nature definition [edit] Lower Risk Near Threatened (NT) (list) To be defined as critically endangered in the Red List, a species must meet any of the following criteria (A–E) Print/export Conservation Dependent (CD) (list) ("3G/10Y" signifies three generations or ten years—whichever is longer—over a maximum of 100 years; "MI" Create a book Least Concern (LC) [4] Download as PDF signifies Mature Individuals): Other categories Printable version A: Occurring over less than 100 km² and two of: Data Deficient (DD) (list) In other projects 1. Severe habitat fragmentation or existing at just one location Not Evaluated (NE)

Wikimedia Commons 2. Decline in extent of occurrence, area of occupancy, area/extent/quality of habitat, number of Related topics locations/subpopulations, or amount of MI. International Union for the Languages Conservation of Nature (IUCN) 3. Extreme fluctuations in extent of occurrence, area of occupancy, number of Afrikaans IUCN Red List locations/subpopulations, or amount of MI. Lists of organisms by population العربية Asturianu B: As above, but less than 10 km² (used to show differing levels of severity).

Български C: Declining population of less than 250 MI and either: Català 1. A decline of 25% over 3G/10Y; V · t · E Čeština 2. Extreme fluctuations, or over 90% of MI in a single subpopulation, or no more than 50 MI in any one Dansk subpopulation. Español Esperanto D: Numbers less than 50 MI. فارسی Français E: At least 50% chance of going Extinct in the Wild over 3G/10Y. Galego 한국어 See also [edit]

Hrvatski Lists of IUCN Red List Critically Endangered species for lists ordered by taxonomic rank. Ecology portal Bahasa Indonesia Category:IUCN Red List critically endangered species for an alphabetical list Íslenska The World's 25 Most Endangered Primates Extinct and endangered species portal Italiano The world's 100 most threatened species Basa Jawa IUCN for additional information on the IUCN Kurdî Magyar List of critically endangered amphibians Македонски List of critically endangered arthropods List of critically endangered birds List of critically endangered fish Bahasa Melayu List of critically endangered insects 日本語 Occitan List of critically endangered invertebrates Polski List of critically endangered mammals Português List of critically endangered molluscs Русский List of critically endangered plants Scots List of critically endangered reptiles Simple English Slovenčina List of Chromista by conservation status Slovenščina List of fungi by conservation status Srpskohrvatski / српскохрватски Suomi Notes [edit] Svenska 1. ^ "IUCN RED LIST CATEGORIES AND CRITERIA" (PDF). 2000-02-09. Retrieved 2018-02-06. 2. ^ IUCN (2014). "Table 2: Changes in numbers of species in the threatened categories (CR, EN, VU) from 1996 to 2014 (IUCN Red List version 2014.2) for the major taxonomic groups on the Red List" (PDF). Retrieved 2014-08-30. Türkçe 3. ^ "Summary Statistics" . www.iucnredlist.org. Retrieved 2017-12-10. Türkmençe Українська 4. ^ IUCN (9 Feb 2000). "IUCN Red List Categories and Criteria, Version 3.1" (PDF). Retrieved 2012-12-31. Tiếng Việt Winaray References [edit] 粵語 List of Critically Endangered Species . IUCN Red List of Threatened Species. Version 2014.2. International Union for Conservation of Nature. 2014. 中文 Edit links Retrieved 30 August 2014.

External links [edit] The Criteria for Critically Endangered , IUCN

V · t · E Threatened species

Template: Threatened species by region

Extinct Extinct (EX) · Extinct in the Wild (EW)

Threatened Critically Endangered (CR) · Endangered (EN) · Vulnerable (VU) 1 Categories Near Threatened (NT) · Least Concern (LC) · Lower Risk (LR) · Lower risk Conservation Dependent (LR/cd)

Not fully assessed Data Deficient (DD) · Not Evaluated (NE) IUCN Red List Extinct · Extinct in the Wild · Critically Endangered · Endangered · Vulnerable · Lists Near Threatened · Least Concern · Data Deficient Species Extinct · Extinct in the Wild · Critically Endangered · Endangered · Vulnerable · WP categories Near Threatened · Least Concern · Data Deficient CITES Appendix I · Appendix II · Appendix III

Endangered arthropods / spiders · Threatened Banksia / rays / sharks / Fungi / Chromista · By taxa The World's 25 Most Endangered Primates · The world's 100 most threatened species Biodiversity action plan · Biodiversity threats · Conservation biology · CITES · ARKive · Bird conservation · Conservation status · Conservation Conservation-reliant species · Ecoregion conservation status · Habitat destruction · Latent extinction risk · Rare species · Vulnerability and susceptibility

1 Pre-2001 categories and subcategories shown in italics.

V · t · E Threatened species by region

By region Blue-listed · Environmental Vulnerability Index · Regional Red List

Environment Protection and Biodiversity Conservation Act 1999 · ROTAP · Threatened Species Protection Act 1995 · Australasia Threatened ecological community · Trade in Endangered Species Act 1989 Canada Species at Risk Act · Committee on the Status of Endangered Wildlife in Canada

Europe European Endangered Species Programme · Funds for Endangered Parrots

South Africa Endangered Wildlife Trust Distinct population segment · Endangered Species Act of 1973 · Endangered Species Act Amendments of 1978 · United Endangered species recovery plan · Endangered Wolf Center · National Wildlife Refuge · NatureServe conservation status · States The Nature Conservancy List of endangered and protected species of China · Endangered mammals of India · Asia List of endangered animals in India · List of endangered species in Pakistan · List of threatened species of the Philippines · List of endangered species in Vietnam Threatened mammals of Europe · Endangered plants of Europe · Europe List of United Kingdom Biodiversity Action Plan species · List of extinct and endangered species of Italy · Lists List of extinct and endangered species of Lithuania List of endangered plants in North America · List of endangered species in North America · North Endangered mammals and birds of the United States · List of threatened mammals of the United States · America List of threatened birds of the United States · List of threatened reptiles and amphibians of the United States Threatened fauna of Australia · List of threatened flora of Australia · List of endangered flora of Brazil · Elsewhere List of threatened mammals of Brazil · List of threatened birds of Brazil

Categories: Critically endangered species Biota by conservation status IUCN Red List

This page was last edited on 6 February 2018, at 06:22.

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https://en.wikipedia.org/wiki/Critically_endangered[04/03/2018 08:27:34]