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  2. The world's 100 most threatened species - Wikipedia

    en.wikipedia.org/wiki/The_world's_100_most...

    The World's 100 most threatened species [1] is a compilation of the most threatened animals, plants, and fungi in the world. It was the result of a collaboration between over 8,000 scientists from the International Union for Conservation of Nature Species Survival Commission (IUCN SSC), along with the Zoological Society of London . [ 2 ]

  3. The Sixth Extinction: An Unnatural History - Wikipedia

    en.wikipedia.org/wiki/The_Sixth_Extinction:_An...

    576.8/4. LC Class. QE721.2.E97 K65 2014. The Sixth Extinction: An Unnatural History is a 2014 non-fiction book written by Elizabeth Kolbert and published by Henry Holt and Company. The book argues that the Earth is in the midst of a modern, man-made, sixth extinction. In the book, Kolbert chronicles previous mass extinction events, and compares ...

  4. 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

  5. Overexploitation - Wikipedia

    en.wikipedia.org/wiki/Overexploitation

    Overexploitation. Atlantic cod stocks were severely overexploited in the 1970s and 1980s, leading to their abrupt collapse in 1992. [1] Overexploitation, also called overharvesting or ecological overshoot, refers to harvesting a renewable resource to the point of diminishing returns. [2] Continued overexploitation can lead to the destruction of ...

  6. Endangered species - Wikipedia

    en.wikipedia.org/wiki/Endangered_species

    An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching, invasive species, and climate change. [1]

  7. IUCN Red List - Wikipedia

    en.wikipedia.org/wiki/IUCN_Red_List

    The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological species. [1] A series of Regional Red Lists, which assess the risk of extinction to species within a ...

  8. Holocene extinction - Wikipedia

    en.wikipedia.org/wiki/Holocene_extinction

    Mass extinctions are characterized by the loss of at least 75% of species within a geologically short period of time (i.e., less than 2 million years). [18] [51] The Holocene extinction is also known as the "sixth extinction", as it is possibly the sixth mass extinction event, after the Ordovician–Silurian extinction events, the Late Devonian extinction, the Permian–Triassic extinction ...

  9. List of critically endangered species in the United States

    en.wikipedia.org/wiki/List_of_Critically...

    An IUCN Red List critically endangered (CR or sometimes CE) species is one that has been categorized by the International Union for Conservation of Nature as facing an extremely high risk of extinction in the wild. [1] As of 2021, of the 120,372 species currently tracked by the IUCN, there are 8,404 species that are considered to be critically ...