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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Silvikultur Tropika (JST) MEDIA KONSERVASI JURNAL HUTAN LESTARI Tengkawang : Jurnal Ilmu Kehutanan BIOTROPIA - The Southeast Asian Journal of Tropical Biology Jurnal Penelitian Hutan dan Konservasi Alam Jurnal Penelitian Hutan Tanaman JURNAL ANALISIS KEBIJAKAN KEHUTANAN Century: Journal of Chinese Language, Literature and Culture Journal of Degraded and Mining Lands Management Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Journal of Tropical Biodiversity and Biotechnology Jurnal Hutan dan Masyarakat Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Belantara Gorontalo Journal of Forestry Research BHUMI: Jurnal Agraria dan Pertanahan Jurnal Risalah Kebijakan Pertanian dan Lingkungan COJ (Coastal and Ocean Journal) JURNAL HUTAN TROPIS Jurnal Ilmu Kehutanan Policy Brief Pertanian, Kelautan, dan Biosains Tropika Indonesian Journal of Forestry Research Biodiversitas Journal of Biological Diversity
Nyoto Santoso
Departemen Konservasi Hutan Dan Ekowisata, Fakultas Kehutanan, Institut Pertanian Bogor, Kampus IPB Darmaga, Bogor 16680
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Social Sciences Veterinary

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The impacts of oil palm plantation establishment on the habitat type, species diversity, and feeding guild of mammals and herpetofauna ROZZA TRI KWATRINA; YANTO SANTOSA; M. BISMARK; NYOTO SANTOSO
Biodiversitas Journal of Biological Diversity Vol. 19 No. 4 (2018)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d190405

Abstract

Kwatrina RT, Santosa Y, Bismark M, Santoso N. 2018. The impacts of oil palm plantation establishment on the habitat type, species diversity, and feeding guild of mammals and herpetofauna. Biodiversitas 19: 1213-1219. Indonesia is the world’s largest producer of palm oil. Contributing 2.14% to the country’s gross domestic product, palm oil plays an important role in the national economy from plantation sector. However, the expansion of oil palm plantations has brought negative impacts to forests and wildlife. Little is known to what extent these negative impacts on mammals and reptiles can be reduced through better management. To address this knowledge gap, the current study assessed species diversity as affected by the establishment of the oil palm plantation in Central Kalimantan, a tropical biodiversity hotspot in Asia. We conducted 25 line transect surveys and visual encounter surveys in oil palm areas, shrubs and secondary forests in these landscapes. The results indicated that the establishment of oil palm plantation negatively impacted species abundance and diversity, and changed the mammal and reptile species composition, by favoring ecologically generalist species. For forest specialist species, forested areas like HCV and HCS, play an important role in maintaining habitat heterogeneity in oil palm landscapes. Mammal species found in habitat conditions following oil palm plantations belong to some feeding groups, whereas all species of herpetofauna have terrestrial habitat types. These mammal and herpetofauna species can live and function in the food chain in the oil palm plantation ecosystem.
Autecology of Melastoma malabathricum, an invasive species in the Way Kambas National Park, Indonesia JANI MASTER; IBNUL QAYIM; DEDE SETIADI; NYOTO SANTOSO
Biodiversitas Journal of Biological Diversity Vol. 21 No. 5 (2020)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d210562

Abstract

Abstract. Master J, Qayim I, Setiadi D, Santoso N. 2020. Autecology of Melastoma malabathricum, an invasive species in the Way Kambas National Park, Indonesia. Biodiversitas 21: 2303-2310. Melastoma malabathricum has become one of the invasive plants in the Way Kambas National Park (WKNP), Lampung, Indonesia. This plant is feared to be a problem in efforts to conserve biodiversity in the WKNP area. Therefore, this study aimed to analyze the factors causing the invasion of these plants. The vegetation analysis plot was placed on three types of habitats in the study location, namely, forests, swamps, and invaded swamps, then measurements and records of vegetation data and abiotic factors were recorded in each plot. The results reveal that M. malabathricum dominates swamp habitat and negatively associated with trees, which can provide canopy. Abiotic factors, such as canopy cover, water level, and soil fertility, become supporting factors for the invasion. In addition, climate change, which is causing drought also contributes to the invasion of M. malabathricum at the WKNP.
The variation of bird diversity in various oil palm land cover in North Mamuju, West Sulawesi, Indonesia Sitti Ramlah; YANTO SANTOSA; NYOTO SANTOSO; SITI BADRIYAH RUSHAYATI
Biodiversitas Journal of Biological Diversity Vol. 22 No. 7 (2021)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d220761

Abstract

Abstract. Ramlah S, Santosa Y, Santoso N, Rushayati SB. 2021. The variation of bird diversity in various oil palm land cover in North Mamuju, West Sulawesi, Indonesia. Biodiversitas 22: 3068-3074. The development of oil palm plantations provides various positive impacts. On the other hand, this development is suspected to bring negative impacts on biodiversity, especially reducing bird species diversity. Based on the other research, well-managed oil palm plantations that maintain high conservation value areas have high species diversity. This study aimed to identify bird species diversity in different types of oil palm plantation land covers in North Mamuju. Data observation of bird species was performed using the transect method. There were 4 transects on each land cover. The results of this study showed that the young oil palm area had a high index of diversity and species richness. The high species diversity in the young palm area was caused by habitat variations. There was a water flow that provides more feed sources. The distance between the young oil palm area and secondary forest area affected the number of species, species richness and diversity of bird species. The category of insectivore guild which included aerial insectivores and insectivores was the dominant guild in all types of land cover, both in the number of species and the number of individual abundances.
Carrying capacity estimation and habitat suitability of Sumatran elephant in Datuk Gedang Wildlife Corridor, Bukit Tigapuluh Landscape, Jambi, Indonesia NAUFAL FIKRI; DEDE AULIA RAHMAN; NYOTO SANTOSO
Biodiversitas Journal of Biological Diversity Vol. 24 No. 10 (2023)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d241036

Abstract

Abstract. Fikri N, Rahman DA, Santoso N. 2023. Carrying capacity estimation and habitat suitability of Sumatran elephant in Datuk Gedang Wildlife Corridor, Bukit Tigapuluh Landscape, Jambi, Indonesia. Biodiversitas 24: 5548-5557. Rapid land use changes, including deforestation and land conversion into human areas, lead to the fragmentation of Sumatran elephant (Elephas maximus sumatranus) habitat. This study aimed to assess food capacity and determine habitat suitability for Sumatra elephants in Datuk Gedang Wildlife Corridor Bukit Tigapuluh Landscape. The research was conducted from January to May 2023. Data on potential, productivity, and carrying food capacity were collected with a direct method in the field with vegetation analysis. Carrying capacity estimation is based on data on productivity, land cover area, proper use, and Sumatran elephant food needs in a day. The habitat suitability model used the present coordinate point data from the GPS collar period of January-December 2022 with eight environment variables. The data were then analyzed for the build Sumatera Elephant habitat suitability model using the Maximum Entropy (MaxEnt) algorithm. We recorded 95 species of the potential Sumatran elephant food. The total feed productivity is 1,032,740.722 kg/ha /day and the carrying capacity is 258 elephants. There were three models of habitat suitability categories: high 4,238.66 ha (7%), medium 8,522.34 ha (14%), and low 11,130.36 ha (18%). The studied landscape can adequately accommodate the current population of Sumatran elephants depending on landscape governance (policy and spatial planning) outside conservation areas.
A first investigation on tricolor langur (Presbytis chrysomelas subsp. cruciger) exhibits significant terrestrial activity in their natural habitat SUTOPO SUTOPO; NYOTO SANTOSO; ANI MARDIASTUTI; YENI ARYATI MULYANI
Biodiversitas Journal of Biological Diversity Vol. 25 No. 8 (2024)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d250814

Abstract

cruciger) exhibits significant terrestrial activity in their natural habitat. Biodiversitas 24: 3431-3440. Until now, it has only been reported that the tricolor langur (Presbytis chrysomelas subsp. cruciger Thomas 1892) is a semi-terrestrial primate, but there has never been any proof from their natural habitat that they actually engage in ground-level activities. This research aims to investigate terrestrial daily activity and the daily time budget for the tricolor langur. To determine the duration and type of their natural behaviors, observations using camera traps. This research was conducted from July 2022 to June 2023 in the lowland forest around the foot of Semujan Hill, which is part of the Danau Sentarum National Park Area, Kapuas Hulu District, West Kalimantan, Indonesia. The results of observations using camera traps showed that the one group langurs engaged in terrestrial activities for 5,830 seconds and arboreal activities in the tree canopy for 15,160 seconds. The percentage of total time recorded by the camera traps indicates that terrestrial activity accounts for only 34% of the total recorded time. The most dominant activities during both terrestrial and arboreal activities were eating and locomotion, with the rest being grooming, resting, and playing. The findings of this research contribute to our understanding of primate behavior, highlight effective methods for observing primates in their natural habitat, especially the Presbytis group and raise awareness among park managers and local communities. It is important that langurs are not disturbed during their terrestrial activities to ensure their continued presence and population growth in the study area.
Determining key mammalian species and food web robustness across different land cover vegetation using network analysis IDUNG RISDIYANTO; YANTO SANTOSA; NYOTO SANTOSO; ARZYANA SUNKAR
Biodiversitas Journal of Biological Diversity Vol. 25 No. 7 (2024)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d250738

Abstract

Abstract. Risdiyanto I, Santosa Y, Santoso N, Sunkar A. 2024. Determining key mammalian species and food web robustness across different land cover vegetation using network analysis. Biodiversitas 25: 3175-3190. The ecosystem's food web depicts the intricate energy flow and complex interactions among its diverse organisms. Organisms are not confined to single trophic levels or food chains; they establish multiple food connections with other organisms within the ecosystem. This study aims to identify critical mammalian species and assess the robustness of various ecosystem types, considering the diversity of species presence, through food web analysis. Computational graphic-based network analysis is employed to achieve this goal. Ecosystem types, categorized by their land cover, include plantation/agricultural forests, Bushes and shrubss, forests, and mixed landscapes. Network centrality metrics such as degree, closeness, betweenness, and eigenvector centrality are utilized to evaluate the presence of key species and ecosystem robustness. The relative contribution of mammalian species as connectors and regulators of energy flow in the food web ranges from 8-23% of all nodes involved. Key mammalian species are classified into ecosystem stability and sustainability keys. In Bushes and shrubss ecosystems, key species predominantly consist of mammalian predator species that are crucial for maintaining ecosystem stability through population control. Conversely, in other ecosystems, key species are primarily connectors, ensuring the sustained energy flow. The most resilient food webs are observed in Bushes and shrubss and mixed ecosystems due to their higher biomass growth rates and abundant presence of mammalian species. Utilizing food web analysis can significantly contribute to species and ecosystem conservation efforts by offering a comprehensive understanding of interspecies interactions, food web structures, and ecosystem dynamics.
Co-Authors Achmad Fahrudin Adam Rachmatullah Agus Priyono Kartono Agusrinal Akhmad Fauzi Andi Nurul Ananda Andri Ginting Ani Mardiastuti Arif Prasetyo Arif Prasetyo Arini, Wahyuningyan Aripin Arzyana Sunkar Asy’Ari, Rahmat Bambang Sulistyantara Bramasto Nugroho Bunga Resa Hartati, Bunga Resa Hartati Cecep Kusmana DEDE AULIA RAHMAN Dede Setiadi DEDE SETIADI Dedi Sudarma Dimas Aryo Wicaksono Diva, Alfatheya Margwita Dodik Ridho Nurrochmat Dudung Darusman Dudung Darusman Efiyati, Efiyati Ega putra, Rizki Akbar Eka Intan Kumala Putri Entang Iskandar Erianto Erianto Fauziah, Natasya Nurul Felayati, Nela Resta Fifi Gus Dwiyanti Firman Arief Gilang Prastya Pambudi Gunardi Hamdani Hakim Hadi S Alikodra Handian Purwawangsa Handini Widiyanti Hardjanto Hari Prayogo Hariyadi, Hariyadi Harnios Arief Hefni Effendi Herlina Darwati Hermansyah Putra Hermawan, Rachmad Herry Purnomo I Nengah Surati Jaya IBNUL QAYIM Idung Risdiyanto Iis Diatin IPB, BPKB Irawan Hadiwijaya Irsandi, Ricky Rizki ISKANDAR ZULKARNAEN SIREGAR Jacobus Togu Hasudungan Jani Master JANI MASTER Jarwadi B Hernowo JARWADI BUDI HERNOWO Kartodihardjo, Hariadi Kautsyar, Muhammad Irsyad Kuo, Chun – I Laode Abdul Muluk Faathir Leo Irwan Sugianto LILIK BUDIPRASETYO Luthfia Zahra Zen M Bismark M Bismark M. Asyief Khasan Budiman M. BISMARK M. Bismark M. Bismark Maria Grace Lawe Siu Mas’yud, Burhanuddin Maya Ambinari Meo, Lorenzo Elton Meti Ekayani Muhammad Al’Awali Salahuddin Muhammad Elfaza Faishal Musyaffa Muhsimin . Mutaqin, Faizal Nabilah, Rizka NAUFAL FIKRI Nova Ika Rakhmawati Sumartono Novida, Rika Nurida, Nurida Octovianus OK Hasnanda Ok Hasnanda OK Hasnanda Syahputra Oktania Kusuma Handayani Perdhana, Reza Dwiputra Pradityo, Teguh Putra, Heriansyah Ramadhan, Yusuf Restian Alif Junianti Ricardo Andalas RIKA RAFFIUDIN Rina Mardiana Rinekso Soekmadi Rinekso Sukmadi Rizaldi Boer Rizki Praba Nugraha Rohma Alif Wibisono Rossita, Annuri Rozza Tri Kwatrina ROZZA TRI KWATRINA Ruskhanidar Ruskhanidar Salsabila, Religiana Sambas Basuni Samsul Samsul Samsul Sari, Devi Nur Indah SISI SUSILAWATI SUSILAWATI Siti Amanah Siti Badriyah Rushayati Sitti Ramlah Sitti Ramlah Sri Supraptini Mansjoer Suliyani, Suliyani SUTOPO Sutopo Sutopo - - Sutopo . Sutopo Sutopo Syamsuddin, Nurmujahidah Syarif M Ridwan Tatang Mitra Setia Tilman, Efrem Tri Puji Astuti Tutut Sunarminto Ulfa, Aulia Utami, Anisa Dwi Vregat Febriansyah Danarta WINDRA PRIAWANDIPUTRA, WINDRA Wiwik Handayani YANTO SANTOSA YANTO SANTOSA Yasri Syarifatul Aini Yeni A Mulyani YENI ARYATI MULYANI Yoffan Ramadhan Yoga Yuniadi Yoppie Christian Zuhud, Ervizal A. M.