These are the largest of Singapore’s non-human primates. Including their tails, they can be up to 140 centimetres long and weigh over 6 kilograms. While their distinctive black and white markings certainly help them stand out against the green foliage, the langurs are shy, elusive and rarely descend from the trees, making them extremely difficult to find.
The Raffles’ banded langur is listed as critically endangered in Singapore because of a small population size and a restricted distribution. In order to take effective action for conservation, information on population size and distribution needs to be collected and updated through field surveys.
As part of our efforts to conserve the Raffles’ Banded Langur, JGIS has been organising population surveys to help us learn more about the langurs. We recruit volunteers to help us with these surveys and there are two shifts (morning and afternoon) every weekend (Saturday and Sunday). Each batch of volunteers sign up for a six-month duration during which they commit to volunteer at least once. If you want to contribute to our efforts, sign up for the next briefing session.
The RBLWG was formed in August 2016 with representatives from JGIS, WRS, NUS, NParks, NSS, and also universities and agencies from Malaysia. Our main goals are to:
JGIS is currently helping to coordinate and manage the citizen science surveys for the Raffles’ banded langurs. For opportunities to get involved with this work, keep an eye on our Volunteer page and stay tuned to our Events listings for upcoming briefings.
For more information about this work, visit the Raffles’ Banded Langur Working Group Facebook page.