Katingan Mentaya
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Summary
- Southwest Bornean orangutans (Pongo pygmaeus wurmbii) are present in Katingan Mentaya.
- The population size is unknown.
- The orangutan population trend is unknown.
- The total site area is 3,056.69 km².
- The main reported threat is the peat fires supression.
- The primary conservation efforts have focused on recognizing the site as a legally protected ape habitat. Additionally, community awareness and habitat restoration are key conservation activities.
- The site is a REDD+ conservation area since 2013.
Site characteristics
Katingan Mentaya spans 149,800 hectares and is split between two ecosystem restoration concession licenses—UNIT I in the east and UNIT II in the west. The broader project zone outlines the full reach of the initiative, stretching from the Mentaya River in the west to the Katingan River in the east, and includes adjacent northern and southern regions, totaling 305,669 hectares (Katingan Mentaya Project 2023).
Table 1. Basic site information for Katingan Mentaya
| Species | Pongo pygmaeus wurmbii |
| Area | 3,056.69 km² |
| Coordinates | Lat: -2.551648 , Lon: 113.142375 |
| Type of site | Conservation area (REDD+ conservation area) |
| Habitat types | Subtropical/tropical swamp forest |
| Type of governance | Private governance |
Types of sites Governance types Habitat types
Ape status
Table 2. Ape population estimates reported for Katingan Mentaya
| Species | Year | Occurrence | Encounter or vistation rate (nests/km; ind/day) | Density estimate [ind./ km²] (95% CI) | Abundance estimate (95% CI) | Survey area | Sampling method | Analytical framework | Source | Comments | A.P.E.S. database ID |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pongo pygmaeus wurmbii |
Sampling methods Analytical frameworks
Threats
Table 3. Threats to apes reported for Katingan Mentaya
| Category | Specific threats | Threat level | Description | Year of threat |
|---|---|---|---|---|
| 7 Natural system modifications | 7.1 Fire & fire suppression | Present (unknown severity) | Peat fires were reported as the majot threat (Sustainable Travel International 2024). | Ongoing (2025) |
Conservation activities
Table 4. Conservation activities reported for Katingan Mentaya
| Category | Specific activity | Description | Implementing organization(s) | Year of activity |
|---|---|---|---|---|
| 4 Education & awareness | 4.1 Educate local communities about apes and sustainable use | Community outreach and capacity building (Sherman et al. 2022). | 2013-Ongoing (2022) | |
| 5 Protection & restoration | 5.2 Legally protect ape habitat | The Katingan Mentaya Project (KMP) serves as a legally protected habitat for Bornean orangutans through an Ecosystem Restoration Concession, granted by the ministry of forestry and funded by the REDD+ (Indriatmoko et al. 2014).
|
PT. Rimba Makmur Utama | 2013-Ongoing (2022) |
| 5 Protection & restoration | 5.6 Habitat restoration | PT. Rimba Makmur Utama was granted an Ecosystem Restoration Concession license to rehabilitate 149,800 hectares of forest and restore degraded peatland ecosystems (Indriatmoko et al. 2014). | PT. Rimba Makmur Utama | 2013-Ongoing (2022) |
Challenges
Enablers
Research activities
Research activities have been reported in Katingan Mentaya (Sherman et al. 2022).
Documented behaviours
Exposure to climate change impacts
External links
References
Sherman, J., Voigt, M., Ancrenaz, M., Wich, S. A., Qomariah, I. N., Lyman, E., Massingham, E., & Meijaard, E. (2022). Orangutan killing and trade in Indonesia: Wildlife crime, enforcement, and deterrence patterns. Biological Conservation, 276, 109744. https://doi.org/10.1016/j.biocon.2022.109744
Indriatmoko, Y., Atmadja, S., Utomo, N. A., Ekaputri, A. D., & Komalasari, M. (2014). Katingan peatland restoration and conservation project, Central Kalimantan, Indonesia. In A. Angelsen, C. Martius, V. De Sy, A. E. Duchelle, A. M. Larson, & P. T. Thuy (Eds.), REDD+ on the ground: A case book of subnational initiatives across the globe (pp. 287–304). Center for International Forestry Research (CIFOR). https://www2.cifor.org/redd-case-book/case-reports/indonesia/katingan-peatland-restoration-conservation-project-central-kalimantan-indonesia/
Katingan Mentaya Project. (2023). About Katingan Mentaya Project. In Katingan Mentaya Project website. Retrieved June 27, 2025, from https://katinganmentaya.com/pages/en/about
Sustainable Travel International. (2024). Katingan Mentaya Project. Retrieved June 27, 2025, from https://sustainabletravel.org/project/katingan-mentaya-project/
Page created by: Aime Mizero Date: 2025-05-27