Those who have been volunteers at Matang in the past will, of course, know the sun bears well. Four of the bears, Bernie, Corrine, Situ and Jo, used to live in the quarantine area and were moved into a large, outdoor area in January 08. Videos of the sun bears’ first steps into their new space can be viewed on our website. Since these bears moved, we have employed our volunteers to carry out behavioural monitoring of all the sun bears here. Matang is attempting to rehabilitate its sun bears, which involves training them out of unnatural behaviours, such as stereotypy, and trying to illicit and increase natural behaviours, such as climbing, breaking into logs and rotting wood, and foraging. We have been making changes to their enrichment, husbandry routine and feeding schedule, all the while monitoring their behaviour, to see if we are succeeding in changing and improving their behaviour. Our record climber thus far is Situ, who climbs now to 13.5m on a daily basis. We are slowly increasing the height at which food is hung to tempt the bears ever higher.



In the eight months that we have been able to monitor the bears, we have seen great improvements in their behaviour. All are comfortable climbers, with Situ excelling, all enjoy a meal of insects, an idea that visually repelled some of them when first introduced, and overall, the frequency of foraging has increased and stereotypy has decreased. Our bears also frequently display mating behaviour, culminating in successful pregnancy. We still have a long way to go, but are greatly encouraged by our initial data. It appears possible to teach sun bears natural behaviour, or more simply present the means to allow them to express what does, indeed, come naturally. It is also possible to decrease stereotypic frequency – our next challenge is to see if we can eliminate it. Our volunteers will continue to help us in this challenging mission.
The prize for Most Improved Bear is, at this stage, definitely awarded to Jo. When first moved to the outdoor enclosure, Jo refused to leave the night den area and face the open air for a number of weeks. She then progressed to venturing out for a day, but then seeking the comfort of the night den for the following two or three. She was very meek, lacked confidence and would steer well clear of the other three bears. Now, Jo is as keen to enter the outdoor enclosure as any other bear. She climbs with ease, forages for most of the day and shows great enthusiasm for tearing apart any wood in her presence – even iron wood platforms do not withstand her efforts. She has also forged a great relationship with Bernie. It is quite common to see these two bears play fighting and rolling around with each other, often continually throughout the day. This does not seem to be tied to mating specifically, as copulation attempts are rarely seen during their interaction. Sun bears are solitary animals in the wild, but here we can see that in the right conditions, individuals can gain great enjoyment from each other’s company. It really is a joy to watch them together, particularly in relation to Jo’s demeanour one year ago.

You can see a short video of Jo and Bernie in their night den on our website homepage clicking on the video link www.orangutanproject.com

Labels: Borneo, matang, rehabilitation, sunbears

When The Great Orangutan Project first started our orangutan volunteer programme with Sarawak Forestry at Matang Wildlife Centre in 2005, many experts were convinced that Doris, a young adult female of 6 years of age at the time, would spend the remainder of her days in captivity. The logic was that she had been too close to humans, that she would always return to the safety and comfort of the centre. Outwardly, she was also terrified of the jungle which led one expert to declare she had vertigo!

However, for us the choice was simple. There is little conservation outcome to be gained by leaving a happy Doris in an enclosure to wave at passing tourists – so, if we can manage it safely for her, she would go back out.

3 years on, and a lot of time-in-the-jungle afterwards, we and the staff at Matang Wildlife Centre are convinced that this wonderful orangutan has a future in the trees. Doris continues to make her forays into the jungle and her behaviour there is improving markedly; however there is still a long way to go. Unlike other orangutans, Doris does not want a jungle existence. This has been witnessed numerous times in other orangutans at other rehabilitation centres and it can be overcome.


Doris with young Mamu, a 3 year old female. Pairing orangutans together is a successful strategy which increases their confidence to stay out in the jungle and allows them to share survival techniques.

Previously the issue had been that Doris would panic, turn and make a run for the centre, often at the fringe of the jungle boundary. The solution has been to physically carry her far enough into the jungle that it is too late to turn back. Given the opportunity, she will face up to any challenge if she is with someone familiar to her.

At first we needed to only carry her 100m or so and she would be happy after that to follow on foot; but as time wore on, and she had grown more familiar with the territory, she was simply walk back to the centre. Occasionally she would go back into her night den and shut the door.

Cunning was needed. Doris is almost fully grown and extremely strong and therefore cannot be allowed to wander around the centre unchecked. At the start of the month we were finding it necessary to carry Doris 2-3km into the jungle before being able to put her down, not easy with a 47kg orangutan. Until about midway through we decided to use the volunteers as bait for her. Sending them up ahead with food was generally enough to motivate Doris into exploring the jungle owing to the novelty of the situation. This will discontinue as we need Doris to get over humans but at the moment it seems to work wonderfully in getting her to explore her natural habitat.

Doris is doing very well. She is nowhere near as scared as she initially was. When out she will eventually wander off and even climb a tree. All of the other orangutans are happy and healthy and the centre is looking at how we can get these adults out into the trees as well as the adolescents. Together they will learn the skills of the jungle, and eventually live wild. Orangutans are far from extinct in the rainforests of Sarawakian Borneo.

Labels: borneo orangutan, great orangutan project, orang utan, orang-utan, orangutan, rehabilitation