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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 ]
The Red List of 2012 was released 19 July 2012 at Rio+20 Earth Summit; [17] nearly 2,000 species were added, [18] with 4 species to the extinct list, 2 to the rediscovered list. [19] The IUCN assessed a total of 63,837 species which revealed 19,817 are threatened with extinction.
Endangered species by reason(s) they are (or were) threatened — the cause(s) for species being endangered in their native habitats.; This is primarily a sub-category for IUCN Red List species by the external threat(s) stated in IUCN reports for each listed species (hyperlinked under 'References' &/or 'External links' on most wikipedia articles when species are on IUCN Red List).
Just like the Kodkod, the Pudu is also listed as threatened because of the destruction of the forest. Another tiny friend found in the Valdivian rainforest is the Monito del Monte .
In Brunei, several mammal species, including the Asian elephant, banteng, long-footed treeshrew, orangutan, and otter civet, are classified as critically endangered or endangered, while the bay cat, clouded leopard, dugong, flat-headed cat, smooth-coated otter, marbled cat, pig-tailed macaque, and proboscis monkey are listed as vulnerable, according to the 2004 IUCN Red List of Threatened Species.
Most amphibian species are also threatened by native habitat loss, [41] and some species are now only breeding in modified habitat. [42] Endemic organisms with limited ranges are most affected by habitat destruction, mainly because these organisms are not found anywhere else in the world, and thus have less chance of recovering.
The great diversity in rainforest species is in large part the result of diverse and numerous physical refuges, [25] i.e. places in which plants are inaccessible to many herbivores, or in which animals can hide from predators.
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