Lamandau Wildlife Reserve welcomes new residents

Over the last few months of this year’s dry season alone, Orangutan Foundation staff have helped rescue and translocate double the number of orangutans than in the previous two years in Central Kalimantan, Indonesian Borneo. One of these handovers was young female Pegi who had been kept inside a cage for the past seven years, but orangutans of course are not the only species that are kept captive illegally.

Earlier this month our teams were called upon once again to assist with wildlife translocations, but this time for different species who had been rescued by government officials or handed over as pets.

Gibbons are released into the forest and explore their new home

A couple of gibbons were the first animals to be released into the forest. Once their transportation crates were opened at Camp Buluh, the pair could be seen climbing to the very top of the canopy where they’re most at home swinging from branch to branch- that was until they were interrupted by male orangutan Yoko. Coming face-to-face with a large primate several times their size might understandably be intimidating for a gibbon new to this habitat, but following a brief pause to observe one another, the individuals soon parted ways and continued roaming through the trees.

Yoko and newly released gibbon lock eyes for a moment

Also released with this pair of apes into the Lamandau Wildlife Reserve was perhaps one of the most beautiful tropical birds found in these forests- the Rhinoceros Hornbill. These large birds are a crucial seed disperser in the forest. After feeding on fruits and berries in the canopy, they can then carry the seeds for many miles before depositing them elsewhere. Our team were elated to see an individual finally stretch it’s winds and be released back into the wild by Camp JL.

A hornbill is transported for release at its new home within the Lamandau Wildlife Reserve

Our team’s final translocation was a young female sun bear named Bella. Without its mother, a sun bear cub may find life in the forest challenging as they’re yet to learn the best methods to search and forage for food. It’s for this reason why our team at Camp Gemini have introduced Bella into a habituation enclosure where she can first become accustomed to her forest surroundings before being released.

One-year-old Bella is introduced to her new temporary home at Camp Gemini

It’s worrying to know that some individuals still see wild species as potential pets, but it is at least reassuring for us to know that the Lamandau Wildlife Reserve is a habitat that is protected and can therefore offer the possibility of a new beginning for these wildlife species, as well as orangutans.

To help protect these forests, please show your support between midday 3rd to 10th December 2019 via our Big Give appeal, which will double any donations in this time!

Belantikan’s big ape count

Determining wild population sizes of orangutans and gibbons, both highly arboreal (tree-dwelling) apes species, is a conservation challenge. But, over the years, scientist have come up with methods that enable accurate estimates. For example, with orangutan their nests are counted and with gibbons, it is their songs that are recorded and used.

We are trying to find out more about the wild ape populations of the Belantikan Hulu region which is part of the greater Belantikan Arut – a spectacular landscape spanning 500,000 hectares across Central and West Kalimantan (Indonesian Borneo). The Belantikan Conservation Programme (BCP) is a joint initiative of Yayorin (an Indonesian NGO) and ourselves.

The Belanitkan Hulu comprises primary and secondary lowland forests, including both recently logged forests and post-logging forests that have since recovered (over the last 35-40 years). The area has ravines, rivers, cliffs and logging roads – all synonymous with Borneo.

There is a large wild orangutan population, which was first surveyed in 2003, and a gibbon population, whose size is unknown. In 2012, The Rufford Foundation awarded funding to the BCP to build a small research station and to commence surveys of the ape species. The research station is now in use by BCP’s field researchers and by a team of biologists from the National University of Jakarta.

Our initial surveys indicate there has been a continuing decrease in the orangutan population over the years. This population was estimated to be the largest population of orangutans existing in the wild outside of the protected area system. In fact, more than 70% of the total Bornean orangutan population in the wild is found outside of designated conservation areas. Hence, it is important to determine the size and distribution of the Belantikan population accurately, and to be able to monitor the current apparent population decline, so that appropriate conservation actions can be taken.

The gibbon survey estimated a density of just over 3 groups per km2, which is considered high. The BCP will conduct further research to determine how orangutans adapt to living in logging forests and to the varying degrees of disturbance. Further studies on gibbons will also survey the wider area and the estimated territory and cruising areas, study group composition as well as changes in habitat conditions between seasons.

We hope to provide you with new and exciting findings from Belantikan as we start to find out more about its forests and what lives within.

We are extremely grateful to The Rufford Foundation and to the US Fish and Wildlife Service Great Ape Conservation Fund for supporting this research project, and to the Arcus Foundation for supporting the on-going conservation project.

Thank you,

Orangutan Foundation and Yayorin (Belantikan Conservation Programme)