LiveScience Yahoo News 28 Jul 08;
A monkey species discovered only three years ago could soon go extinct in its tiny forest home in Tanzania, say conservation scientists.
The kipunji (Rungwecebus kipunji and also known as the Highland Mangabey) was discovered in 2005 in the Southern Highlands and Udzungwa Mountains in Tanzania. In 2006, genetic analyses revealed the species represented an entire new genus of primate - the first since 1923.
Now, the Wildlife Conservation Society (WCS) in New York has published a census of the endangered primate, revealing 1,117 individuals of the species reside in two isolated forest regions spanning less than 7 square miles (18 square kilometers). The animals live in 38 groups, each with 15 to 39 members.
The forest-dweller sports long whiskers and a crest of hair on the tip of its head. The monkey is known for its unique honk-bark call.
"The kipunji is hanging on by the thinnest of threads," said Tim Davenport, Tanzania country director for the WCS. "We must do all we can to safeguard this extremely rare and little understood species while there is still time."
WCS researchers found that much of the monkey's remaining habitat is severely degraded by illegal logging and land conversion. This loss of habitat along with the monkey being hunted by poachers has WCS scientists worried about the species' survival.
WCS officials are proposing that that the kipunji be classified by the World Conservation Union (IUCN) as "critically endangered," which means the species is threatened with extinction in the wild if immediate conservation action is not taken.
The kipunji census research, detailed in the July issue of the journal Oryx, was funded by the WCS, Critical Ecosystem Partnership Fund, and Fauna and Flora International Flagship Species Fund.
Newfound Monkey Species "Rarest in Africa," Experts Say
Steven Stanek, National Geographic News 4 Aug 08;
A recently discovered African monkey could soon be extinct, scientists report.
The first comprehensive study of a three-foot-tall (one-meter-tall) monkey discovered in Tanzania found that just 1,117 individuals exist, according to researchers with the Wildlife Conservation Society (WCS).
The Rungwecebus kipunji on Monday was listed as "critically endangered"—the highest possible threat level before extinction—by the International Union for Conservation of Nature (IUCN) in response to the WCS research.
"Without a doubt, they are the rarest monkey in Africa, and I would imagine there are very few with such small numbers in the world," said Tim Davenport, Tanzania country director for the WCS, who led one of the two research teams that separately found the primate in 2005.
Davenport helped IUCN to assess the conservation status of the kipunji.
Mike Hoffmann, a Washington-based program manager for IUCN, said his organization relies on information from researchers in the field about animal populations to determine a species' conservation status.
"They've got very good information," Hoffman said of Davenport's teams. "This is information from people working on the ground conducting detailed surveys."
New Genus
Davenport said the main threats to the kipunji are poachers and illegal logging in its habitat in Tanzania's southern highlands and the Udzungwa Mountains, which rise 8,000 feet (about 2,400 meters) above sea level.
As adults, the brownish gray, long-haired monkeys weigh up to 40 pounds (18 grams) and emit a unique "honk-bark," so named because it sounds like "a goose followed by a dog," Davenport said.
Originally scientists thought the monkey was a new species of mangabey, but in 2006 DNA analysis revealed it to be an entirely new genus of primate named Rungwecebus—the first genus discovered in Africa since 1923.
Patricia Wright, a primatologist at New York's Stony Brook University, said: "If it is indeed its own genus, then it becomes even more important that we save it."
The primate could disappear in 20 to 50 years without safeguards to preserve it, said Wright, a member of National Geographic's Conservation Trust Advisory Board.
(The Conservation Trust is part of the National Geographic Society, which also owns National Geographic News.)
Counting Each Individual
The WCS study—published in the July issue of the journal Oryx—was the result of more than 2,800 hours of fieldwork by scientists.
Davenport said most primate censuses estimate populations through sampling and statistical extrapolation.
"What we decided to do was a little bit more time consuming ... actually try and count every individual," he said. "It was a bit of an unusual study."
It took 20 researchers six months to map the movements of 34 separate groups of kipunji, using GPS mapping systems. Each group has 30 to 36 individuals.
The team found the monkeys—which sport distinctive, upright crests of hair on their heads—live in a range of just 6.8 square miles (17.7 square kilometers) in two remote regions, which explains why they eluded Western scientists for so long.
The researchers said the kipunji's tiny population and "shyness" also contributed to the primate's obscurity.
