Habitat and Ecology
IUCN Red List Assessment
Red List Category
Red List Criteria
Listed as Endangered as the species is suspected to have undergone a population reduction of ≥50% over the past 52.5 years (three generations, assuming a generation length of 17.5 years) due primarily to observed and inferred continuing decline in area, extent and quality of habitat due to burning of forests to provide pasture for livestock, logging for charcoal production and fragmentation.These causes have not ceased, and will to a large extent not be easily reversible. A future population reduction of ≥50% over a 52.5 year period is also suspected due to the same causes and increased hunting with changes in values and breakdown of the taboo system. Assuming population reductions to continue, this species may need to be uplisted to Critically Endangered in the near future.
- 1996Vulnerable(Baillie and Groombridge 1996)
- 1990Vulnerable(IUCN 1990)
Von der Decken's sifaka
Von der Decken's sifaka (Propithecus deckenii) is a sifaka endemic to Madagascar. It has a length of 92 to 107 centimeters, of which 42-48 centimeters are tail. Von der Decken's Sifaka lives in western Madagascar. It lives in dry deciduous forest.
Its pelage is usually creamy white, with tinges of yellow-gold, silver grey or pale brown on the neck, shoulders, back and limbs. The face is entirely black. Group size is between 2 and 10 individuals, with groups of 3 to 6 most common.
- Andriaholinirina, N. et al. (2014). "Propithecus deckenii". IUCN Red List of Threatened Species. Version 2014.1. International Union for Conservation of Nature. Retrieved 2014-06-16.
- "Checklist of CITES Species". CITES. UNEP-WCMC. Retrieved 18 March 2015.
- Groves, C. P. (2005). Wilson, D. E.; Reeder, D. M, eds. Mammal Species of the World (3rd ed.). Baltimore: Johns Hopkins University Press. OCLC 62265494. ISBN 0-801-88221-4.
- Garbutt, Nick (2007). Mammals of Madagascar, A Complete Guide. pp. 196–197.
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