Save the Silky Sifaka

  • van: Edo R
  • ontvanger: International Union for Conservation of Nature

The silky sifaka (Propithecus candidus), or silky simpona, is a large lemur characterized by long, silky white fur. It has a very restricted range in northeastern Madagascar, where it is known locally as the simpona. It is one of the rarest mammals on earth, and is listed by the International Union for Conservation of Nature (IUCN) as one of the world's 25 most critically endangered primates.

According to the most recent IUCN Red List assessment, the silky sifaka is Critically Endangered. It is one of the rarest and most critically endangered lemurs. The silky sifaka is one of five lemurs listed as one of "The World's 25 Most Endangered Primates" and has been on the list all five times since its inception in 2000. Its population size is estimated to range between 100 and 1,000 individuals, while the number of mature individuals is thought to be less than 250. There are no silky sifakas in captivity, such as in zoos.

The silky sifaka is the flag-ship species for the protected areas in which it is found, particularly for Marojejy, which has recently been inaugurated as part of a World Heritage Site cluster known as the Rainforests of the Atsinanana. Habitat disturbance, such as slash-and-burn agriculture (known locally as tavy), logging of precious woods (e.g., rosewood) and fuel-wood, also occurs within the protected areas where it is found. Unlike the golden-crowned sifaka (Propithecus tattersalli), there is no local taboo (fady) against eating this species, and the hunting of bushmeat is a known issue within its range. It is most heavily hunted in the northern and western parts of Marojejy, as well as other areas around the Andapa Basin. The species is restricted to 90,000 ha (350 sq mi) of protected areas, although this may be an overestimation because in much of its range the silky sifaka is not found below 700 m (2,300 ft) in altitude, possibly due to either hunting pressure or habitat preference.

Illegal logging of precious hardwoods, such as rosewood and ebony, has become one of the greatest threats to the silky sifaka's habitat, especially since the 2009 Malagasy political crisis. Its two largest protected areas, Masoala National Park and Marojejy National Park, have been the hardest hit. The disturbance caused by selective logging increases the likelihood of forest fires, helps invasive species take root, impairs habitat, and causes the loss of genetic diversity.

Source: Wikipedia

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