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The Tapanuli orangutan (''Pongo tapanuliensis'') is a distinct species of orangutan found exclusively in the forests of the [[Batang Toru Ecosystem]] in North Sumatra, Indonesia. The geographic distribution of the Tapanuli orangutan is notably restricted, encompassing an area of approximately 1,000 square kilometers, making it one of the most geographically constrained great ape species (Meijaard et al. 2021). Tapanuli orangutans are classified as critically endangered on the IUCN Red List of threatened species (Nowak et al. 2023). This designation highlights the severity of the threats facing the species and the urgency required for conservation efforts. It has been estimated that fewer than 800 Tapanuli orangutans persist in the wild (Wich et al. 2019).

The Tapanuli orangutan (''Pongo tapanuliensis'') is a distinct species of orangutan found exclusively in the forests of the [[Batang Toru Ecosystem]] in North Sumatra, Indonesia. The geographic distribution of the Tapanuli orangutan is notably restricted, encompassing an area of approximately 1,000 square kilometers, making it one of the most geographically constrained great ape species (Meijaard et al. 2021). Tapanuli orangutans are classified as critically endangered on the IUCN Red List of threatened species (Nowak et al. 2023). This designation highlights the severity of the threats facing the species and the urgency required for conservation efforts. It has been estimated that fewer than 800 Tapanuli orangutans persist in the wild (Wich et al. 2019).

[[File: Tapanuli_orangutan_Gabriella_Fredriksson.jpg | 400px | thumb| right | Tapanuli orangutan © Gabriella Fredriksson]]  

[[File: Tapanuli_orangutan_Gabriella_Fredriksson.jpg | 400px | thumb| right | Tapanuli orangutan © Gabriella Fredriksson]]  

The People Resources and Conservation Foundation ([https://prcfoundation.org/ PRCF]) in partnership with the local grassroots NGO Sumatran Rainforest Institute ([http://sumatranrainforest.org/ SRI]) is implementing an ARCUS supported community-based corridor program in South Tapanuli in liaison with five stakeholder villages, aiming to maintain forest cover between Sibual-Buali Nature Reserve and the West Block of the Batang Toru Ecosystem and increase the tolerance towards orangutans in a shared landscape matrix. This corridor program is designed to prevent genetic isolation of orangutans as well as other endangered arboreal species such as Siamang and Agile Gibbons that otherwise become stranded in Sibual-Buali Nature Reserve.

The People Resources and Conservation Foundation ([https://prcfoundation.org/ PRCF]) in partnership with the local grassroots NGO Sumatran Rainforest Institute ([http://sumatranrainforest.org/ SRI]) is implementing an ARCUS supported community-based corridor program in South Tapanuli in liaison with five stakeholder villages, aiming to maintain forest cover between Sibual-Buali Nature Reserve and the West Block of the Batang Toru Ecosystem and increase the tolerance towards orangutans in a shared landscape matrix. This corridor program is designed to prevent genetic isolation of orangutans as well as other endangered arboreal species such as Siamang and Agile Gibbons that otherwise become stranded in Sibual-Buali Nature Reserve.

Nowak, M.G., Rianti, P., Wich , S.A., Meijaard, E. & Fredriksson, G. 2023. Pongo tapanuliensis (amended version of 2017 assessment). The IUCN Red List of Threatened Species 2023: e.T120588639A247632253. Accessed on 15 December 2023. <br>

Nowak, M.G., Rianti, P., Wich , S.A., Meijaard, E. & Fredriksson, G. 2023. Pongo tapanuliensis (amended version of 2017 assessment). The IUCN Red List of Threatened Species 2023: e.T120588639A247632253. Accessed on 15 December 2023. <br>