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All Journal HAYATI Journal of Biosciences MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Lanskap Indonesia MEDIA KONSERVASI Jurnal Biologi Udayana Journal of Degraded and Mining Lands Management Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Journal of Regional and Rural Development Planning Agrisocionomics: Jurnal Sosial Ekonomi Pertanian Forest and Society Igya ser hanjop: Jurnal Pembangunan Berkelanjutan (Journal of Environmental Sustainability Management)
Syartinilia .
Departemen Arsitektur Lanskap, Fakultas Pertanian, Institut Pertanian Bogor, Kampus IPB Darmaga Bogor, 16680, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Social Sciences

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Identification of Javan Hawk-Eagle (Nisaetus bartelsi) and Its Habitat on the Island of Bali Widiyavedanta, Gde Oka; Syartinilia; Aryati Mulyani , Yeni
Media Konservasi Vol. 30 No. 4 (2025): Media Konservasi Vol 30 No 4 November 2025
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/medkon.30.4.504

Abstract

The Javan Hawk-Eagle (Nisaetus bartelsi), an endemic species of Java, has been occasionally observed in Bali, prompting the need for scientific verification due to its critical conservation status. This study aimed to confirm the presence of the Javan Hawk-Eagle in Bali and map its potential distribution based on habitat suitability using an integrated spatial-ecological approach. A probability distribution model was developed using logistic regression with NDVI (Normalized Difference Vegetation Index), slope, and elevation as predictor variables. The resulting probability map was subsequently delineated using land cover, land use data, and information obtained directly from key informant interviews to produce a refined predicted suitable habitat patches map for the Javan hawk-eagle. To confirm its reliability, we conducted patch occupancy surveys to confirm the Javan Hawk-Eagles existence in patches that have historical occurrence of Javan Hawk-Eagle. Logistic regression modeling identified the Javan Hawk-Eagle's potential distribution area of 1,069.4 km². Using this model and information from key informants, forest function maps, and land cover maps, 14 predicted habitat patches were delineated. Subsequent patch occupancy surveys confirmed three of these patches as actual habitats for the Javan Hawk-Eagle on Bali, namely West Bali Protected Forest, Batukaru and Batukahu Area, and Buyan-Tamblingan Lake Tourism Forest. These findings provide the first empirically validated confirmation of the Javan Hawk-Eagle’s presence in Bali, supported by direct photographed observations verified by experts, and delineate key habitat patches for future conservation planning.
The Sumatran Tiger's Corridor in Agam, West Sumatra: An Initial Analysis of the Metrics Indices Landscape Munawar, Kholis; Syartinilia; Datu Bahaduri, Laksmi
Media Konservasi Vol. 31 No. 1 (2026): Media Konservasi Vol 31 No 1 January 2026
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/medkon.31.1.1

Abstract

Increased habitat pressure is indicated by high levels of human-tiger conflict (HTC). For Sumatran tigers to survive, structural corridor management is essential to managing the tiger metapopulation. Since 2016, Agam Regency has seen a sharp rise in HTC. This exploratory study aimed to understand variations in the corridor's forest cover and to evaluate the relationship between landscape metric indicators and fluctuations in HTC density. Agam's corridor is separated into 31 grids (3x3km). HTC information was gathered from earlier studies and web searches for incidents from 2000 to 2024. Tropical Forest Monitoring's landcover dataset was obtained through the use of a Google Earth Engine script. The LecoS plug-in is used to calculate landscape metric indices. For non-normally distributed data, the Spearman correlation statistic (95% CI) is employed. Before the HTC series in 2016, there was a twofold increase in deforestation, from 0.56% to 1.1% between 2010 and 2015. Nine landscape metrics, including forest area, forest proportion, NP, PD, GPA, LPI, PCI, and splitting index, exhibited a significant correlation with HTC density (p-value < 0.05). Around the corridor, high HTC density was associated with PD >10 patches km-2, LPI <44%, forest fraction <50.76%, and more disaggregated patches (PCI<9.79%). Since it may not be feasible to reduce HTC to zero incidents in the vicinity of human-dominated tiger habitats, expectations should be moderated, as lower HTC density occurs in wider landscape metric ranges. Improving PCI by aggregating patches and reducing NP while maintaining the remaining forest can potentially reduce HTC incidents and increase corridor function in tiger metapopulation management. The challenges are enormous, as  94% the corridor is in a non-protected area. 
Shared Habitat Distribution of Javan Hawk-eagle, Javan Leopard, and JavanGibbon in Gunung Halimun Salak National Park, Indonesia Suyitno, Rofifah Aulia; Syartinilia; Mulyani, Yeni Aryati; Ario, Anton
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 16 No 1 (2026): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.16.1.121

Abstract

Gunung Halimun Salak National Park (NP) is recognized as an important habitat for rare or key species of Java Island such as the Javan Hawk-eagle, Javan leopard, and Javan gibbon. Although these species exhibit different movement patterns (aerial, arboreal, and terrestrial), their spatial overlap within the landscape suggests potential ecological interactions, particularly within the trophic structure which is rarely integrated before. This study aims to identify, describe, and provide recommendations for the management of key species shared habitats based on spatial approach. Spatial analysis was used to examine the distribution of shared habitats and their biophysical characteristics, including land cover, elevation, and slope. A literature and policy review was conducted to align the findings with existing Conservation Strategies and Action Plans, based on applicable regulations and NP zonation. The analysis reveals that habitat distribution within the NP is categorized into 28.78% two key species and 55.84% three key species shared habitat. Biophysically, key species shared habitat is primarily found in forested areas between 500–1,500 meters above sea level (masl), and mostly located on steep slope around 25–45%. In terms of Gunung Halimun Salak NP zonation, two key species and three key species habitats are mainly located within the core, forest, and use zones of the Gunung Halimun Salak NP. The recommendations are developed aligned with the Conservation Strategy and Action Plan, regulations, and NP zonation for the comprehensive and integrated habitat management strategies of the key species shared habitat.
Co-Authors A Hadi Syafrudin A. Cochrane, Mark Akhmad Arif Amin Andrea Emma Pravitasari, Andrea Emma Arif Kurnia Wijayanto Ario, Anton Aryati Mulyani , Yeni Aslinda, Nindy Ati Dwi Nurhayati Auliya, Izhar Bambang Hero Saharjo Datu Bahaduri, Laksmi Edrian Junarsa Fauziyah Hasanah Gunadi, Syahbani Putra Hadi Susilo Arifin Hasanah, Fauziyah Hendry Pramono Hidayat Pawitan Higuchi, Horoyoshi Higuschi . Hiroyoshi Higuchi Hiroyoshi Higuchi Hiroyoshi Higuchi Iman Santoso Insan Fahmi Irman Firmansyah Irmansyah, Firman Katili, Hidayat Arismunandar Kuspriyangga, Aditya Leti Sundawati LILIK BUDIPRASETYO Liyantono . Makalew, Afra Donatha Nimia Meirani, Utami MUHAMMAD CHOIRUDDIN AZIS Munandar, Aris Munawar, Kholis Mustofa Nassat Idris Nike Dyah Permata Nur Azmi Oki Hidayat Patria Rachman Hakim Pratiwi, Amalia Subha Presti Ameliawati Prita Ayu Permatasari, Prita Ayu Putra, Indeka Dharma Putra Putu Ayu Irvana Swasti Raharja, Agung Raja Mohd Kris Setiawan Ramandini Puspita Sari Rifqi Adi Nugraha Risco Noverio Rafael Rofifah Aulia Rofifah Aulia Suyitno Sri Mulatsih Sri Wahyuni Sry Wahyuni Sry Wahyuni SRY WAHYUNI Suyitno, Rofifah Aulia Tati Budiarti Widiatmaka Widiyavedanta, Gde Oka Yeni A. Mulyani Yeni A. Mulyani Yeni Aryati Mulyani Yudi Setiawan