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Journal : Jurnal Penelitian Pendidikan IPA (JPPIPA)

Nest Building Ability and Nest Characteristic of Pre-release Bornean Orangutan (Pongo pygmaeus) in Jerora Forest School, Sintang Orangutan Center, West Kalimantan Indriastuti, Hapsari; Sjahfirdi, Luthfiralda; Setia, Tatang Mitra
Jurnal Penelitian Pendidikan IPA Vol 11 No 7 (2025): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i7.11447

Abstract

Rescue, rehabilitation, and release is one of the strategies for orangutan conservation. Jerora Forest School, Sintang Orangutan Center, West Kalimantan, is a place to rehabilitate orangutan. One of the criteria for orangutan to be ready for release is the ability to build nests. The objective of this study was to analyze the nest building ability and nest characteristic preferences of four pre-release female bornean orangutans (Jamilah, Penai, Joss, and Bondan) in Jerora Forest School. Data was collected in November 2024 to January 2025 using the focal animal sampling, ad libitum sampling, and continuous recording methods. Three out of four female pre-release bornean orangutans (Jamilah, Joss, and Bondan) are categorized as moderate on their ability to build nest, while Penai is less capable. Nest trees used by the juvenile orangutan are more diverse than the ones used by the adult orangutan. The characteristics of the nests used by the research subjects were relatively similar across each age group. Nest trees used by the juvenile orangutans are more diverse than the ones used by the adult orangutans. Based on the nest building observation, Jamilah, Joss, and Bondan are ready to be released, while Penai is not ready to be released yet.
Daily Behavior of Reintroduction Candidate Orangutans (Pongo pygmaeus) at Jerora Forest School, Sintang Orangutan Center, West Kalimantan Halim, Nauhal Nazri; Sjahfirdi, Luthfiralda; Setia, Tatang Mitra
Jurnal Penelitian Pendidikan IPA Vol 11 No 7 (2025): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i7.11454

Abstract

Bornean orangutans (Pongo pygmaeus) in captivity require time to be released in order to survive in their natural habitat. This study aims to analyze the daily behavior of orangutans awaiting release at the Jerora Forest School, Sintang Orangutan Center, West Kalimantan. The study was conducted using a focused animal observation method with 5-minute intervals without breaks and without time restrictions. Observations were made on two female orangutans, Jamilah (24 years old) and Penai (21 years old). The results of the data analysis showed that Jamilah's feeding behavior occurred in the enclosure (41.89%) and cage (38.49%), while Penai's feeding behavior occurred in the enclosure (31.41%) and cage (41.22%). The least frequent behavior was playing, with Jamilah playing in the enclosure (4.87%) and cage (3.95%) and Penai playing in the enclosure (4.02%) and cage (3.84%). Jamilah's arboreal movement behavior was 62% and Penai's was 82%. The observation results indicate that Jamilah is more ready for release than Penai based on the orangutan release readiness criteria cited from the Orangutan Conservation and Reintroduction Workshop in 2002.
Co-Authors Achmad Sofyan Achmad Yanuar Ahmad Baihaqi Ainisyifa, Ulfa Alinar Alinar Alvira Noer Effendi Alvira Noer Effendi Amir Hamidy Anang Aditiya Andrew John Marshall Annastasya Rahma Ramadhani Arief Kurniawan Asep Koswara Assalam, Muhammad Hudan Aziz, Panji B. Surata Boby Muslimin Campbell Owen Webb Cheryl Denise Knott Cipto Utomo Cipto Utomo Dedy Darnaedy Dennys Perdana Armanda Devi Alamsyah Dewi Malia Prawiradilaga Dewi, Fitriya Nur Annisa Dewinta Febriyanti Domingus Da Costa Endro Setiawan Fachruddin Majeri Mangunjaya Fachruddin Majeri Mangunjaya Fachruddin Majeri Mangunjaya Fachruddin Majeri Mangunjaya Fachrudin Mangunjaya Fadhillah, Hilwa Syifa Fajar Kaprawi Farits Alhadi Firmansyah Firmansyah Fitriah Basalamah Fitriah Basalamah Glave Lorenzo Gugah Praharawati Gugah Praharawati Halim, Nauhal Nazri HANDAYANI Handayani, Sri Hariyanto Hariyanto Herda Pamela Hutabarat Hermansyah Hermansyah Hermansyah Hermansyah Hilwa Syifa Fadhillah Huda Shalahudin Darusman Hutabarat, Herda Pamela Ikhsan Matondang Ilmi, Fauziah Indarjani Indarjani, Indarjani Indriastuti, Hapsari Isai Yusidarta Jito Sugardjito Khoe Susanto Kusumahadi Khoe Susanto Kusumahadi Kusholany LUTHFIRALDA SJAHFIRDI M Syukur Wahyu Putra Mangunjaya, Fachruddin M. Melta Rini Fahmi Mochammad Zamroni Moh. Hamdani Nira Zulifa Silawane Nita Nurjanah Njo Fransiscus Xaverius Anditya Ciptadi Putra Nonon Saribanon Noverita Novida, Rika Nurdian Sahrila Nurhasanah, Annisa Haryanti Nyoto Santoso Ona Noerwana Panji B Surata Azis Prawesti Wulandari Putra, Njo Fransiscus Xaverius Anditya Ciptadi Ramadani, Annisa Ratna Wati Ratna Wati Ratni Ernita Reflinur Reflinur Rooselina Dwi Rahayu Sakdullah Sapari, Iman Saptowo Jumali Pardal Satrio, Muhammad Bagus Septiana Anggraini Pratiwi Siregar, Benny A. Slamet Slamet Sri Suci Utami Atmoko Tamaulina Br Sembiring Tegas Gentur Sosiawan Tegas Gentur Sosiawan Tom Kirschey Wening Enggarini Wicaksono, Gusti Widyaningrum, Dita Fitria Yanuar, Achmad Yenisbar Yeremiah Rubin Tjamin