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All Journal MEDIA KONSERVASI Jurnal Primatologi Indonesia Hemera Zoa Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) ARSHI Veterinary Letters Jurnal Biosilampari: Jurnal Biologi Indonesian Journal of Applied Research (IJAR) Jurnal Penelitian Kehutanan Wallacea
Jansen Manansang
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Education Environmental Science Medicine & Pharmacology Veterinary

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Journal : MEDIA KONSERVASI

 1 
Population Density of Kloss’s Gibbon (Hylobates klossii) at Bojakan Resort, Siberut Island, West Sumatra: KEPADATAN POPULASI BILOU (Hylobates klossii) DI RESORT BOJAKAN, PULAU SIBERUT, SUMATERA BARAT Vallen Sakti Maulana; Ani Mardiastuti; Entang Iskandar; Jansen Manansang
Media Konservasi Vol 24 No 3 (2019): Media Konservasi Vol. 24 No. 3 Desember 2019
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (603.159 KB) | DOI: 10.29244/medkon.24.3.237-244

Abstract

Kloss’s gibbon (Hylobates klossii) is endemic primate to the Mentawai Islands of the West Sumatra, and currently categorized as Endangered according to IUCN Red List in 2008. The latest population information on Siberut Island is incomplete and not comprehensive yet. Assessment of population was used as a base in determining the conservation strategies. This study aimed to identify the Kloss’s gibbon population that includes population distribution, individual and group density, group size, and group composition. This research was conducted in Bojakan Resort, Siberut National Park, Siberut Island, Mentawai Islands, West Sumatra. Surveys for primates were carried out between November 2018 and Januari 2019. Following previous primate surveys and general recommendations, this study used line transect sampling. Total Kloss’s gibbon individuals found were 77 individuals with 25 groups. Average individual density was 12,8 individuals km2, group density was 4,2 groups km2, and group size was 3,08 individuals group. Kloss’s gibbon populations was affected by disruption of human activity. Kloss’s gibbon density in Bojakan Resort was higher compared to previous studies on Siberut Island. The percentage of Kloss’s gibbon groups that have a group size of more than two individuals was higher than the group of two individuals, indicating that forests in Bojakan Resort was abble to support the Kloss’s gibbon population. There were many groups that have at least one or more offspring, a good sign that regeneration progress was still ongoing. Monitoring and patrolling by National Park is needed to ensure the existence of the Kloss’s gibbon population in that area. Keywords: endemic primate, kloss’s gibbon, line transect sampling, monogamy
Population of The Javan Surili Langur Presbytis comata in The Taman Safari Indonesia Bogor Forest Area Sinaga, Walberto; Manansang, Jansen
Media Konservasi Vol. 29 No. 2 (2024): Media Konservasi Vol 29 No 2 May 2024
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/medkon.29.2.82

Abstract

Taman Safari Indonesia Bogor is a buffer zone for the Taman Nasional Gunung Gede Pangrango conservation forest area and is one of the habitats for the Javan surili langurs, but there is no research data on wild Javan surili langur populations. The object of research is to find out how many populations of Javan surili langurs are in the TSI Bogor forest area. The research method used the line transect method by collecting data on the number of individuals, the number of groups, the sex ratio, and the age structure. The research was conducted in four observation areas with varying lengths, observations were made at (06.00 - 17.00 WIB), and four repetitions were carried out on each observation path, the results showed that there were 16 Javan surili langurs individuals divided into one group, and the estimated population density was 0.06 individual/ha. The sex diversity of male and female surili langurs in the TSI Bogor forest area is 1:6 where the female Javan surili langurs are more than the male Javan surili langurs and for the age structure the largest Javan surili langurs are in the adult age class with a percentage of 43.75%, juvenile 31.25%, and the percentage of infant is 25%.
Co-Authors Amani, Aqila Zata Ani Mardiastuti Darusman, Huda Shalahudi Dedi Rahmat Setiadi Dondin Sajuthi Entang Iskandar Hadi S Alikodra Hastuti, Yohana Tri Iis Afriantini Imam Purwadi, Imam Imtiyaaz, Cassytta Dhiya Laksono, Mohamad Nanang Tejo Manansang, Willem Muchidin Noordin MUHAMMAD AGIL Mulia, Bongot Huaso Pamungkas, Joko Prayetno, Saptohadi R. Iis Arifiantini Rhomadon, Gilang Septiantina Dyah Riendriasari Setyaningsih Rambu Liwa Sri Supraptini Mansjoer Tejolaksono, Muhammad Nanang Trihastuti, Yohana Tuty L Yusuf Vallen Sakti Maulana Vincentia Trisna Yoelinda Walberto Sinaga Widihasputri, Risti Yohana Tri Hastuti