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See: List of endangered plants, List of critically endangered plants. Vulnerable, Endangered, and Critically Endangered species are collectively referred to as threatened species by the IUCN. Additionally 1674 plant species (7.6% of those evaluated) are listed as Data Deficient , meaning there is insufficient information for a full assessment ...
A wilderness area (IUCN Category Ib) is similar to a strict nature reserve, but generally larger and protected in a slightly less stringent manner.. These areas are a protected domain in which biodiversity and ecosystem processes (including evolution) are allowed to flourish or experience restoration if previously disturbed by human activity.
The IUCN protected area categories are: IUCN Category Ia — Strict Nature Reserve; IUCN Category Ib — Wilderness Area; IUCN Category II — National Park; IUCN Category III — Natural Monument or Natural Feature; IUCN Category IV — Habitat management area / Species Management Area; IUCN Category V — Protected Landscape / Protected Seascape
The WDPA uses the IUCN's definition of a protected area as the main criteria for entries to be included in the database. The database contains comprehensive information on the different types of protected areas ranging from those strictly protected for conservation purposes to those where sustainable use of natural resources is allowed; and includes government, co-managed, private and ...
The basis of the IUCN Red List of Ecosystems are the IUCN Red List of Ecosystems Categories and Criteria, a set of eight categories and five criteria that provide a consistent method for assessing an ecosystem's risk of collapse. They are designed to be: broadly applicable across type ecosystems and geographic areas, transparent and ...
Version 2014.2 of the IUCN Red List of Threatened Species identified 4574 critically endangered species, subspecies, varieties, stocks, and subpopulations.. For IUCN lists of critically endangered species by kingdom, see:
The IUCN also listed seven subspecies and five varieties as conservation dependent. As of the 2024.2 version of the Red List, the IUCN lists 126 conservation dependent species, seven plant subspecies, five plant varieties, and one animal species subpopulation as having been assessed as conservation dependent [2].
The IUCN also lists 99 subspecies and 101 varieties as endangered. No subpopulations of plants have been evaluated by the IUCN. 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".