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Primate Conservation

Coordinators:  Dean Anderson and Nancy Ruggeri, Department of Zoology,
University of Wisconsin-Madison

The World's Top 25 Most Endangered Primates- 2002

A recent report released by Conservation International (CI) and the Primate Specialist
Group of IUCN was finalized at the 2002 International Primatological Society meetings
in Beijing. It is a revision of their previously released "The World's Top 25 most Endangered Primates",
which indicates that about one out of every three primate species is currently
threatened with extinction.  This updated version suggests that Indonesia now exceeds
Madagascar and Brazil for the country with the most endangered primates.  However,
Madagascar, identified as one of the world's biodiversity hotspots, has 10 critically endangered
species, and 21 endangered species.  For the full report, please refer to the link at the bottom
of this message.

Each week, we will be featuring one of the 25 primate species in peril.  This is being
done in conjunction with Conservation International.  The fact sheets are compiled by
Sean Flannery at the WPRC Library and Information Service.

Silky Sifaka (Propithecus candidus) 

Photo Link:

In physical appearance, this completely white animal contrasts greatly with the 
previously described, all-black species, but in terms of geography they are essentially 
neighbors and in terms of conservation status they are very similar indeed. What we 
know about the ecology and behavior of the silky sifaka has come from short-term 
research efforts conducted in the mountainous forests of Marojejy, which was recently 
elevated from nature reserve to national park status. Marojejy is located in far 
northeastern Madagascar. It and the Anjanaharibe-Sud Special Reserve are the only 
officially protected areas in which Perrier's sifaka occurs, but their forests are not 
immune from habitat disturbance and hunting that accompanies encroaching human 
settlements. As a result, the remaining silky sifaka population, which is estimated at 
perhaps only several hundred and no more than a thousand individuals, continues to be at 
high risk of extinction. Field studies conducted by students from the State University of 
New York at Stony Brook and Cornell University have successfully habituated a few 
sifaka groups at Marojejy, where Cornell researchers hope soon to begin population 
censuses and behavioral research with support from the Margot Marsh Biodiversity 

Relevant Citations:

None found

Fact Sheet:

The full report is available at:
Full report

Topics in Primate Conservation is supported by a grant RR00167,
Regional Primate Centers Program, National Center for Research
Resources, The National Institutes of Health.

Posted Date: 11-25-02