Featured Research

from universities, journals, and other organizations

Rare Miller's grizzled langur rediscovered in Borneo

Date:
January 23, 2012
Source:
Wiley-Blackwell
Summary:
Scientists have found one of the rarest and least known primates in Borneo, Miller’s Grizzled Langur, a species which was believed to be extinct or on the verge of extinction. The findings confirms the continued existence of this endangered monkey and reveals that it lives in an area where it was previously not known to exist.

Grizzled Langur.
Credit: Eric Fell

An international team of scientists has found one of the rarest and least known primates in Borneo, Miller's Grizzled Langur, a species which was believed to be extinct or on the verge of extinction. The team's findings, published in the American Journal of Primatology, confirms the continued existence of this endangered monkey and reveals that it lives in an area where it was previously not known to exist.

Miller's Grizzled Langur (Presbytis hosei canicrus) is part of the small primate genus Presbytis, found across Borneo, Sumatra, Java and the Thai-Malay Peninsula. In Borneo, P.h. canicrus is only found in a small corner of the county's north east and its habitat has suffered from fires, human encroachment and conversion of land for agriculture and mining.

The team's expedition took to them to Wehea Forest in East Kalimantan, Borneo, a large 38,000 ha area of mostly undisturbed rainforest. Wehea contains at least nine known species of non-human primate, including the Bornean orangutan and gibbon.

"Discovery of P.h canicrus was a surprise since Wehea Forest lies outside of this monkey's known range. Future research will focus on estimating the population density for P.h. canicrus in Wehea and the surrounding forest," said Brent Loken, from Simon Fraser University Canada. "Concern that the species may have gone extinct was first raised in 2004, and a search for the monkey during another expedition in 2008 supported the assertion that the situation was dire."

By conducting observations at mineral licks where animals congregate and setting up camera traps in several locations, the expedition confirmed that P. h canicrus continues to survive in areas west of its previously recorded geographic range. The resulting photos provide the first solid evidence demonstrating that its geographic range extends further than previously thought.

"It was a challenge to confirm our finding as there are so few pictures of this monkey available for study," said Loken. "The only description of Miller's Grizzled Langur came from museum specimens. Our photographs from Wehea are some of the only pictures that we have of this monkey."

"East Kalimantan can be a challenging place to conduct research, given the remoteness of many remaining forested areas, so it isn't surprising that so little is known about this primate," said Dr. Stephanie Spehar, Assistant Professor of Anthropology at University of Wisconsin Oshkosh. "We are very grateful to our local partners. This discovery represents the hard work, dedication, and collaboration of Western and Indonesian scientists, students, NGOs, as well as local communities and government."

"While our finding confirms the monkey still exists in East Kalimantan, there is a good chance that it remains one of the world's most endangered primates," concluded Loken. "I believe it is a race against time to protect many species in Borneo. It is difficult to adopt conservation strategies to protect species when we don't even know the extent of where they live. We need more scientists in the field working on understudied species such as Miller's Grizzled Langur, clouded leopards and sun bears."


Story Source:

The above story is based on materials provided by Wiley-Blackwell. Note: Materials may be edited for content and length.


Journal Reference:

  1. Lhota, Stanislav, Loken, Brent, Spehar, Stephanie; Fell, Eric, Pospěch, Alexandr; Kasyanto, Nunuk. Discovery of Miller's Grizzled Langur (Presbytis hosei canicrus) in Wehea Forest confirms the continued existence and extends known geographical range of an endangered primate. American Journal of Primatology, 2012 DOI: 10.1002/ajp.21983

Cite This Page:

Wiley-Blackwell. "Rare Miller's grizzled langur rediscovered in Borneo." ScienceDaily. ScienceDaily, 23 January 2012. <www.sciencedaily.com/releases/2012/01/120120183044.htm>.
Wiley-Blackwell. (2012, January 23). Rare Miller's grizzled langur rediscovered in Borneo. ScienceDaily. Retrieved July 30, 2014 from www.sciencedaily.com/releases/2012/01/120120183044.htm
Wiley-Blackwell. "Rare Miller's grizzled langur rediscovered in Borneo." ScienceDaily. www.sciencedaily.com/releases/2012/01/120120183044.htm (accessed July 30, 2014).

Share This




More Plants & Animals News

Wednesday, July 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Thousands Flocking to German Crop Circle

Raw: Thousands Flocking to German Crop Circle

AP (July 30, 2014) Thousands of people are trekking to a Bavarian farmer's field to check out a mysterious set of crop circles. (July 30) Video provided by AP
Powered by NewsLook.com
Concern Grows Over Worsening Ebola Crisis

Concern Grows Over Worsening Ebola Crisis

AFP (July 30, 2014) Pan-African airline ASKY has suspended all flights to and from the capitals of Liberia and Sierra Leone amid the worsening Ebola health crisis, which has so far caused 672 deaths in Guinea, Liberia and Sierra Leone. Duration: 00:43 Video provided by AFP
Powered by NewsLook.com
At Least 20 Chikungunya Cases in New Jersey

At Least 20 Chikungunya Cases in New Jersey

AP (July 30, 2014) At least 20 New Jersey residents have tested positive for chikungunya, a mosquito-borne virus that has spread through the Caribbean. (July 30) Video provided by AP
Powered by NewsLook.com
Raw: Otters Enjoy Water Slides at Japan Zoo

Raw: Otters Enjoy Water Slides at Japan Zoo

AP (July 30, 2014) River otters were hitting the water slides to beat the summer heatwave on Wednesday at Ichikawa City's Zoological and Botanical Garden. (July 30) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

More Coverage


Mysterious Monkey Re-Discovered in Borneo

Jan. 20, 2012 Researchers were stunned to rediscover one of the rarest primates in Borneo, the grizzled langur, thought by many to be ... read more
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

    Technology News



      Save/Print:
      Share:

      Free Subscriptions


      Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

      Get Social & Mobile


      Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

      Have Feedback?


      Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
      Mobile: iPhone Android Web
      Follow: Facebook Twitter Google+
      Subscribe: RSS Feeds Email Newsletters
      Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins