“We were all pretty ecstatic, the fact that, wow, this monkey still
lives, and also that it’s in Wehea,” said Mr Loken.
The monkey, which has hooded eyes and a pinkish nose and lips, once roamed the
northeastern part of Borneo, as well as the islands of Sumatra and Java and
the Thai-Malay peninsula. But concerns were voiced several years ago that
they may be extinct.
Forests where the monkeys once lived had been destroyed by fires, human
encroachment and conversion of land for agriculture and mining and an
extensive field survey in 2005 turned up empty.
“For me the discovery of this monkey is representative of so many species
in Indonesia,” Mr Loken said.
“There are so many animals we know so little about and their home ranges
are disappearing so quickly,” he said. “It feels like a lot of
these animals are going to quickly enter extinction.”
The next step will be returning to the 90,000 acre (38,000 hectare) forest to
try to find out how many grizzly langurs there are, according to the team of
local and international scientists, who published their findings in the
American Journal of Primatology on Friday.
They appear in more than 4,000 images captured over a two-month period, said
Mr Loken. “We are trying to find out all we can,” he said. “But
it really feels like a race against time.”
Experts not involved in the study were hugely encouraged.
“It’s indeed a highly enigmatic species,” said Erik Meijaard, a
conservation scientist who spent more than eight years doing field research
in the area.
In the past they were hunted to near extinction for their meat and bezoar “stones,”
he said, which can, on occasion, be found in their guts.
Bezoars, as Harry Potter fans know from lectures given by Prof Snape to first
year students, are believed by some to neutralize poison.
Mr Meijaard said the animal has long been considered a subspecies of the
Hose’s Leaf Monkey, which also occurs on the Malaysian side of Borneo, but
it now looks like that may not be the case.
“We think it might actually be a distinct species,” he said, “which
would make the Wehea discovery even more important.”
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