Reforestation Rehabilitation

10,000 Trees to Date

Research Conservation

Expedition on Cyclops

Formal and Informal

Educating the Youth


YAPPENDA plants fast-growing and multi-purpose tree species like casuarina as well as fruit trees. We provide income for the population through employment in tree planting, forestry maintenance, establishing and operating nurseries and eventually selling produce from the trees. 

YAPPENDA has established five nursery locations:

  • Sentani (Kab. Jayapura)

  • Doyo (Kab. Jayapura)

  • Wamena (Kab. Jayawijaya)

  • Dekai (Kab. Yahukimo)

  • Holuwon (Kab. Yahukimo)


YAPPENDA is developing programmes that incorporate the education of the local population and impart the importance and value of avoiding the felling of primary forests, and maintenance of a long-term forestry plan. Sekolah Lentera Harapan has agreed to fully fund and manage a school in Holuwon in cooperation with YAPPENDA and YAPPELIN (Yayasan Pelayanan Injili). YAPPENDA will add conservation to the curriculum and involve students with tree planting and care of forest/nursery.


YAPPENDA works closely with several partners on Mount Cyclops (Yongsu) including Brin (Indonesia’s Research and Innovation Institute), the Department of Forestry, Kolaborasi Inklusi Konservasi (KONKLUSI), University of Oxford (Dr. James Kempton), Oxford University Museum of Natural History (Dr. Leonidas-Romanos Davranoglou), Numbay Research Centre/NRC (Pascal Norotouw), Zoological Society of London (Dr. Paul Barnes), Royal Holloway University of London (Dr. Max Webb) and Universitas Cenderawasih Papua (UNCEN). In July of 2023, an expedition was conducted together on Mount Cyclops. The expedition resulted in the finding of many new species and most importantly, the rediscovery of Attenborough’s long-beaked echidna (Zaglossus attenboroughi).  “One of the goals of YAPPENDA is to ensure the preservation of the Cyclops Mountains and their remarkable biodiversity,” said Malcolm Kobak, cofounder of YAPPENDA. “[...]The [long-beaked echidna] holds a special place in the traditions of the Indigenous inhabitants of the Cyclops and is emblematic of Cyclops’ conservation efforts.”


YAPPENDA has begun work to help preserve two endangered indigenous tree species. These two species include the Ganyam (Inocarpus fagifer) and the Sowang (Xanthostemon novaguineenis). Also, YAPPENDA is aiding in preserving Attenborough’s long-beaked echidna (Zaglossus attenboroughi) which was recently rediscovered on Mount Cyclops.



YAPPENDA is partnering closely with the Papua province, Kabupaten Jayapura and the Kabupaten Yahukimo forestry departments. The government has been incredibly supportive and supplied YAPPENDA with seedlings. Also, there will be cooperation on a number of fronts, including species preservation and development, reforestation and land management.