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All Journal MEDIA KONSERVASI Jurnal Primatologi Indonesia ZOO INDONESIA Jurnal Riset Veteriner Indonesia (Journal of The Indonesian Veterinary Research) Konservasi Hayati International Journal Of Science, Technology & Management (IJSTM) Zoo Indonesia

Entang Iskandar

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Author-ID : 2276039

Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Immunology & microbiology Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology Transportation Veterinary Other

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Group Formation of the Long-Tailed Macaques Introduced onto Tinjil Island, West Java Entang Iskandar; Randall C Kyes; Rondang Siregar; R.P Agus Lelana
Media Konservasi Vol 5 No 1 (1996): Media Konservasi
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Between 1;ebruary 1488 and June 1941, 478 long-tailed macaques (58 males, 420 females) were releasedonto 'Tinjil Island to estahlisli a natural habitat breeding facility. The monkeys were released on 10 differentoccasions over the three years period and did not represent established social groups at the time of release. Approxirnalely 33% of the entire breeder populalion (28 males and 130 females) has been identified by tattoo. Because each monkey received a chest tattoo before released onto the island, it has been possible to reconstruct and tract social group formation by matching an individual's tattoo with its date of release. Assesment of the tattoo data From five of the groups identified on the island indicates that the social groups are not composed of animals from a single release group, hut rather consist of animals from several release groups. Animals from all10 release groups are represented among the five social groups. Membership in the five groups has remainedrelatively stahle during the past four years olohservation (1990-1993) with minimal exchange of group members.

POLA PEMANFAATAN RUANG VERTIKAL DAN JELAJAH HARIAN ORANGUTAN SUMATERA (Pongo abelii, LESSON 1827) DI BLOK BARAT HUTAN BATANG TORU, SUMATERA UTARA) Muhammad Faesal Rahman Hakim; Ani Mardiastuti; Entang Iskandar
Media Konservasi Vol 20 No 2 (2015)
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

The most southern Sumatran orangutan natural habitat is located in Batang Toru Forest Block. This study aims to determine use of vertical space and the daily range of Sumatran orangutans in Batang Toru Forest. At least 17 different individual have been identified, but only 7 individual have been habituated. This study aims to determine use of vertical space and the daily range of Sumatran orangutans in Batang Toru Forest, begun by examining 7 habituated individu. Data vertical space was collected by focal animal sampling and ad libitum by following the individual orangutan from nest in the morning until next nest in the dusk , with each 2 minute recording intervals. Orangutans used the vertical level on 16-25 m where the fruits were abundant or at the position 72,00-82,14% from the groumd. The mean day range is 760,73-1089,28 m. There is not difference between daily range of the orangutan adult male, adult female and adolescent ( F = 0.119 ; p value = 0.94 ; α = 0.05). Keywords: daily range, Sumatran orangutan, vertical space

POLA JELAJAH ORANGUTAN (Pongo pygmaeus morio) DI STASIUN PENELITIAN MENTOKO DAN PREFAB TAMAN NASIONAL KUTAI, KALIMANTAN TIMUR Agnes Ferisa; Ani Mardiastuti; Entang Iskandar
Media Konservasi Vol 19 No 1 (2014): Media Konservasi Vol 19. No. 1 April 2014
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

The purpose of this research were to measure orangutan daily range, home range, core area and overlapping between individu. Research was conducted May-September 2012, collected 415,67 hours of focal data on 3 orangutans in each research station site. Ranging data were collected by focal animal sampling and analyzed by ArcGIS and kernel density estimation (kde). The result shows that mean of daily range in Mentoko was 0.563 km/day (range 0,339 km/day-0,749 km/day), and Prefab was 0.609 km/day (range 0,423 km/day-0,570 km/day). Mean home range in Mentoko was 0, 169 km2 (range 0,045 km2-0,401 km2) with core area 0,045 km2 (range 0,007 km2-0,113 km2), and Prefab was 0,117 km2 (range 0,061 km2-0,197 km2) with core area 0,038 km2 (range 0,009 km2-0,079 km2). Overlapping in Mentoko was occur between Darwin and Putri covering 3.914 ha. Prefab overlay was occur between Bayur and Labu 5.239 ha, Bayur and Mawar 5.848 ha. Key words: Core area, Daily range, Home range, Kutai National Park, overlapping, Pongo pygmaeus morio.

WILAYAH JELAJAH DAN TERITORI OWA JAWA (Hylobates moloch) DI TAMAN NASIONAL GUNUNG HALIMUN-SALAK Mia Clarissa Dewi; Ani Mardiastuti; Entang Iskandar
Media Konservasi Vol 21 No 1 (2016): Media Konservasi Vol. 21 No. 1 April 2016
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Javan gibbon is endemic and endangered primate of Java. The research aims to map home ranges and territories of three habituated javan gibbons (Goup A, B and S) in Gunung Halimun-Salak National Park from March to July 2015. This finding will support the conservation management for javan gibbon. The mapping of those areas was determined by following the groups for 541 hours and analyzed the data using minimum convex polygon. The home range average of the three groups was 33,41 ha (Group A = 23,7 ha; B = 43,8 ha; and S = 32,7 ha). The largest home range had the lowest food tree densities (50 ind/ha). The average of territory was 0,57 ha (Group A = 0,4 ha; B = 0,8 ha; and S = 0,4 ha). The territory areas had food tree densities in higher (116,7 ind/ha) compare to the home ranges (76,7 ind/ha). The large territory area had low food tree densities (90 ind/ha), otherwise the small territory area had high food densities (Group A 160 ind/ha; Group S 110 ind/ha).Keywords: habitat, home range, javan gibbon, territory

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

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

Co-Authors Agnes Ferisa Ani Mardiastuti Benvika Dalimunthe, Nurzaidah Putri DEWI APRI ASTUTI DYAH PERWITASARI -FARAJALLAH Febriany Iskandar Femke Den Haas Ferdinandez, Mariana Habib Ilham Maulana Al Adhim Hady Sukadi Alikodra Huda Shalahudin Darusman Jansen Manansang Loes (ML) Schure Mia Clarissa Dewi Muhammad Faesal Rahman Hakim Pamungkas, Ilham Hanaan Taqiuddin Pamungkas, Joko Purbatrapsila Azhari R.P Agus Lelana Rahmad Lingga Randall C Kyes Randall C. Kyes Ridhatul Zuhra Rondang Siregar Septiantina Dyah Riendriasari Sri Suci Utami Atmoko Vallen Sakti Maulana Walberto Sinaga Wirdateti .

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