Article Per Year (5 Year)
p-Index From 2020 - 2025
3.082
P-Index
This Author published in this journals
All Journal HAYATI Journal of Biosciences MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Ilmu Pertanian Indonesia MEDIA KONSERVASI Jurnal Primatologi Indonesia Jurnal Penelitian Hutan dan Konservasi Alam Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Pusat Inovasi Masyarakat Policy Brief Pertanian, Kelautan, dan Biosains Tropika
DEDE AULIA RAHMAN
Conservation Of Forest And Ecotourism Department, Faculty Of Forestry And Environment, IPB, IPB Campus Dramaga, Bogor, 16680, Indonesia
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Medicine & Pharmacology Social Sciences

Published : 28 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 28 Documents
Search

 1   2   3 
PENGGUNAAN PARAMETER MORFOMETRIK UNTUK PENDUGAAN UMUR SIAMANG SUMATERA (Symphalagus syndactylus Raffles, 1821) (Application of Morphometric Parameters to Estimate the Age of Siamang Sumatra (Symphalagus syndactylus Raffles, 1821) Santosa, Yanto; Nopiansyah, fifin; Mustari, Abdul Haris; Rahman, Dede Aulia
Jurnal Penelitian Hutan dan Konservasi Alam Vol 8, No 1 (2011): Jurnal Penelitian Hutan dan Konservasi Alam
Publisher : Pusat Penelitian dan Pengembangan Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Memahami umur satwa merupakan aspek penting untuk mengidentifikasi struktur umurnya. Struktur umur adalah salah satu parameter demografik yang penting untuk dipelajari terkait tujuan pengelolaan populasi. Salah satu teknik estimasi usia dapat didekati dari ukuran organ (morphometric). Penelitian ini dilakukan dari Mei hingga Agustus 2007 pada Pusat Penyelamatan Satwa Cikananga, Jawa Barat dan Kalaweit Pusat, Sumatera Barat. Penelitian ini menggunakan 14 parameter dan 40 sampel dari siamang (Symphalagussyndactylus Raffles, 1821), terdiri dari 24 jantan dan 16 betina. Hasil analisis statistik (regresi linier berganda dengan metode bertahap) korelasi antara umur (Y) dengan lingkar wajah (LM) diperoleh persamaan regresi untuk Umur = -14,546 + 0,801 LM untuk jantan (1-15 tahun), panjang tangan (PTT) dengan Umur = -2,091 + 0,496 PTT untuk jantan (1-6 tahun), lingkar dada (LD) dengan Umur = -15,328 + 0,533 LD untuk betina (2-14 tahun), lingkar dada dengan Umur = -5,331 + 0,312 LD untuk jantan dan betina (1-15 tahun). Ukuran morfologikal dalam hal ini lingkar wajah, panjang tangan, lingkar dada merupakan pertumbuhan panjang hewan yang mudah dilihat dengan mata dan merupakan parameter penentuan kelas umur pada siamang sumatera (Symphalagus syndactylus Raffles, 1821). Parameter morfometrik yangdigunakan merupakan bagian-bagian tubuh yang mudah terlihat dan mudah diukur dan merupakan bagian terpenting dalam sebuah teknik penentuan umur menggunakan metode morfometrik.
Cohabitation Study of the Leaf Monkey and Bornean White-Bearded Gibbons in Gunung Palung National Park, West Kalimantan YANTO SANTOSA; . TAQIUDDIN; ABDUL HARIS MUSTARI; DEDE AULIA RAHMAN
HAYATI Journal of Biosciences Vol. 19 No. 3 (2012): September 2012
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (377.869 KB) | DOI: 10.4308/hjb.19.3.115

Abstract

Diet and habitat overlaps were studied for the leaf monkey (Presbytis rubicunda) and bornean white-bearded gibbons (Hylobates albibarbis) in tropical forest of Cabang Panti Research Station (CPRS), Gunung Palung National Park, West Kalimantan. Systematic data on feeding and ranging behaviour were collected from August 2009 up to February 2010 for the three groups of two sympatric primate species that shared two neighbouring patches. Our results showed that seven types of habitat in CPRS were affected to both primates, particularly in plant utilization for feed and the use of vertical space patterns. If the leaf monkeys were present in the same forest patch, the Bornean white-bearded gibbons showed a reduced within-group dispersal and significantly less foraging time in a given forest patch. This might be due to the bornean white-bearded gibbons were more selective in their diet selection. When fruits were scarce, bornean white-bearded gibbons spent most of their foraging time in many types of forest ecosystem, while leaf monkey foraged within one or two types of forest ecosystem. At this period, diet and habitat overlaps between the two species were low. When the availability of fruits increased, leaf monkeys shifted their foraging range and both species became confined to the forest habitat. Consequently, the overlaps of diets and habitats were increased while the peak was at the end of the fruit season.
Ecology and Conservation of the Endangered Banteng (Bos javanicus) in Indonesia Tropical Lowland Forest Dede Aulia Rahman; Riki Herliansyah; Puji Rianti; Ujang Mamat Rahmat; Asep Yayus Firdaus; Mochamad Syamsudin
HAYATI Journal of Biosciences Vol. 26 No. 2 (2019): April 2019
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (916.643 KB) | DOI: 10.4308/hjb.26.2.68

Abstract

Banteng, Bos javanicus, as wild cattle is a vital and importance source of germplasm in Indonesia. Various human activities currently threaten their conservation status. Nonetheless, no long-term monitoring programmes are in place for this species. Using distribution point and statistical analysis based on 46,116 camera trap days from December 2015 to January 2017, we aimed to provide habitat preferences, activity patterns and ecological data for banteng population in Ujung Kulon National Park (UKNP). It is the largest population of banteng in Indonesia and is living in a limited habitat area. According to the best occupancy model, the most suitable areas for this species were the secondary forest located at the center portion of UKNP. The presence of the invasive cluster sugar palm, Arenga obtusifolia, in dry season provides additional alternative food for banteng when its main food is scarcer in the forest. Banteng was cathemeral all year round, with the proportion of cathemeral records and the recording rate did not change with the protection of the level area, moon phase or season. To reduce the probability of encountering predators, banteng avoided the space use of dholes. Selection and avoidance of habitats was stronger than avoidance of the predator activity areas. Habitat competition from domestic cattle which grazed illegally in the national park appears to be a problem to the species since zoonosis appears from domestic cattle to banteng. Therefore, effective law enforcement and an adequate conservation strategy are required to eliminate the impacts of both direct and indirect threats.
Precision of Nest Method in Estimating Orangutan Population and Determination of Important Ecological Factors for Management of Conservation Forest Yanto Santosa; Dede Aulia Rahman
Jurnal Manajemen Hutan Tropika Vol. 18 No. 1 (2012)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (147.273 KB)

Abstract

Orangutan as an umbrella species is closely interlinked with sustainable forest management meaning that the protection of this species has implications on the protection of other species and maintain ecosystem stability. The total natural habitat required to support orangutan’s population could only be determined by the appropriate population size. It is associated with the carrying capacity to accommodate or fulfill the habitat requirements of a wildlife population. Selection and delineation of core and wilderness zones as habitat preference should be based on the results of preference test shown by the spatial distribution of orangutan population. Value of the coefficient of variation (CV) was used to observe the precision of the population estimation and to identify important ecological factors in selection of nesting trees. The study resulted in varied CV spatial values for various habitat types: 22.60%, 11.20%, and 13.30% for heath, lowland dipterocarp, and peat swamp forest, respectively. In the other side, CV temporal values for various habitat types were 5.35%, 22.60%, and 17.60% for heath, lowland dipterocarp, and peat swamp forest, respectively. This indicated that the population density in each type of forest ecosystems had a variation based on location and did not varied according to time of survey. The use of nest survey technique showed good reliable results in estimating orangutan population density. Efforts to improve the precision of estimation can be done by formulating r value as the harmonic average of nest production rates and t as the average of nest decay time per nest category. Selection of habitat preference and nest trees were influenced by food availability thus should form important consideration in conducting nest survey to avoid bias in estimating orangutan populations.
Pendugaan Parameter Demografi dan Bentuk Sebaran Spasial Biawak Komodo di Pulau Rinca, Taman Nasional Komodo Yanto Santosa; Raden Yosi Zainal Muhammad; Dede Aulia Rahman
Jurnal Ilmu Pertanian Indonesia Vol. 17 No. 2 (2012): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (260.542 KB)

Abstract

Komodo is one of the protected rare reptiles that can only be found within the Komodo National Park and the northern island of Flores. This study was aimed to determine the species population parameters and spatial distribution. Data collection on population and spatial distribution of komodo were conducted using 20 transects with four repetitions, of which 5 transects were placed in the deciduous forest and 15 in the savannah with a total sampling area of 200 ha. The form of spatial distribution was obtained using the methods of variance ratio, dispersion index, green index, clumping index and chi-square. In addition, vegetation analysis was carried out on a 4 ha sampling plot. Results of the observations indicated that the size of the komodo population on Rinca Island was 698 individuals with a density of 3.15 individuals/km2 comprised of: adults with 1.7 individuals/km2, sub-adults with 0.65 individuals/km2, juveniles with 0.8 individuals/km2 and infants with 0.4 individuals/km2. The density of komodo in the deciduous forest (8.4 individuals/km2) was much higher than in the savannah (0.64 individuals/km2). The birth rate of komodo (11.27%) was higher than the mortality rate (4.23%). The sex ratio was 3 : 1. Within the study area, komodo distributed within clusters as indicated by the ratio of mean value of 3.77; dispersion index 3.72; green index 0.08, clumping index 2.72 and chi-square 167.059.6. Chance of encounters with Komodo in both types of habitat was much higher in the morning (80%) than during the day (20%). To increase the population size, the manager should intervene with the maintenance of hatchlings to acquire low mortality rate and protection of komodo’s natural prey species.
Faktor–Faktor Penentu Keberhasilan Pelepasliaran Orangutan Sumatera (Pongo Abelii) di Taman Nasional Bukit Tigapuluh Yanto Santosa; Julius Paolo Siregar; Dones Rinaldi; Dede Aulia Rahman
Jurnal Ilmu Pertanian Indonesia Vol. 17 No. 3 (2012): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (338.026 KB)

Abstract

Study on determinant factors on success of Sumatran orangutan reintroduction was done to all orangutans in reintroduction station (84 individual + 1 infant orangutan). This study was conducted from August to December 2006 in the Station of Orangutan Reintroduction Centre located in Buffer Zone of Bukit Tiga Puluh National Park. The purpose of this study was to measure the effects of determining factors to the success of orangutans reintroduction to their natural habitat and to identify other factors that give impact to the reintroduction success. Data were collected through direct observation of activities and daily behavior of orangutans using scan sampling and continuous recording methods as well as through interviews with officials. Data analysis was performed descriptively and quantitatively using statistical tests (chi–square) with 95% confidence interval. The results showed that there is a match between percentage of success of the reintroduction of the six criteria of reintroduction success. The results of chi–square indicates that determinant factors, such as age class, orangutan life history, treatment and duration of reintroduction stage, are correlated to the success of reintroduction activities.
STUDI KEANEKARAGAMAN MAMALIA PADA BEBERAPA TIPE HABITAT DI STASIUN PENELITIAN PONDOK AMBUNG TAMAN NASIONAL TANJUNG PUTING KALIMANTAN TENGAH Yanto Santosa; Eko Prastio Ramadhan; Dede Aulia Rahman
Media Konservasi Vol 13 No 3 (2008): Media Konservasi
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (327.124 KB) | DOI: 10.29244/medkon.13.3.%p

Abstract

Indonesia harbours the highest mammal diversity in the world with 436 species, of which 51 % are endemic. Kalimantan itself comprises of 222 species of mammals of which 44 species are endemic. This research was conducted to determine mammal diversity and mammal’s variety differences in every habitat type found in Pondok Ambung Tropical Rainforest Research Station. The methods used were strip transect, concentration count and trapping. The research indicated as many as 22 species of mammals belonging to 12 families and 6 orders were found in 5 habitat types within Pondok Ambung Tropical Rainforest Research Stations. Peat forest showed the greatest variety of mammals with 17 species followed by lowland forest with 13 species, shrub land with 4 species, post-burned forest with 4 species and heath forest with 2 species.Keywords : Mammal diversity, habitat, Pondok Ambung
Karakteristik Habitat dan Preferensi Pohon Sarang Orangutan (Pongo pygmaeus wurmbii) di Taman Nasional Tanjung Puting (Studi Kasus Camp Leakey) Dede Aulia Rahman
Jurnal Primatologi Indonesia Vol. 7 No. 2 (2010)
Publisher : Pusat Studi Satwa Primata LPPM-IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (776.141 KB)

Abstract

Abstrak. Orangutan (Pongo spp) tersebar luas di Asia, namun saat ini hanya ditemukan di Pulau Kalimantan dan Sumatera. Di Kalimantan Tengah, orangutan dengan jumlah populasi tertinggi dapat ditemukan di Taman Nasional (TN) Tanjung Puting. Orangutan memiliki preferensi dalam pemilihan habitatnya dan memiliki sebaran yang merata atau berkelompok. Akibatnya, pengelolaan populasi orangutan, dan habitatnya harus mempertimbangkan preferensi habitat populasi orangutan. Tujuan penelitian ini untuk menentukan karakteristik preferensi habitat orangutan, dan mengidentifikasi faktor-faktor dominan dalam preferensi pohon sarang pada orangutan. Penelitian ini dilakukan pada bulan Februari-Juni 2008 dengan analisis vegetasi. Hasil penelitian dengan analis regresi menunjukkan faktor-faktor ekologi dominan yang menentukan habitat orangutan. Preferensi pohon sarang adalah jumlah spesies tumbuhan pakan dan struktur pohon sarang. Hal ini menunjukkan peluang keberadaan orangutan pada suatu lokasi akan meningkat dengan meningkatnya jumlah spesies tumbuhan pakan. Analisis indeks preferensial berdasarkan metode Neu (1974) menunjukkan dari 3 lokasi yang diteliti, 2 lokasi (dipterocarp dataran rendah dan hutan rawa campuran) memiliki indeks preferensial yang lebih tinggi dibandingkan lokasi yang lain.Abstract. Orangutans (Pongo spp) were once widespread in Asia but are currently found only on the islands of Borneo (Kalimantan) and Sumatra. In Central Kalimantan, orangutans with the highest population number can be found in Tanjung Puting National Park. Orangutans have preferences in their habitat and therefore tend to spread uniformly or in groups. As a consequence, the management of orangutan populations and habitat must consider their habitat preferences. The objectives of this research were to determine the characteristics of orangutan’s habitat preferences, and identify the dominant factors for nest tree preferences of orangutans. This study was conducted in February-June 2008 by using the vegetation analysis. Results of the study with multiple regression analysis showed that the dominant ecology factors which determined orangutan’s habitat and nest tree preference were the number of food plant species and structure of nest trees. This indicated that the probability of the presence of orangutans in a location would increase with an increase in the number of food plant species. Using Neu’s method of preferential index’s analysis, it was concluded that out of the 3 locations studied, 2 locations (dipterocarp low land and mix swamp forest) had preferential indices greater than the other third location.Key words: Tanjung Puting National Park, orangutan, habitat, nest tree preferences.
Penggunaan Habitat dan Pemodelan Distribusi Spasial Macan Tutul Jawa di Kawasan Gunung Sawal, Jawa Barat Ilham Setiawan Noer; Hendra Gunawan; Dede Aulia Rahman
Jurnal Penelitian Hutan dan Konservasi Alam Vol 18, No 1 (2021): Jurnal Penelitian Hutan dan Konservasi Alam
Publisher : Pusat Penelitian dan Pengembangan Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphka.2021.18.1.53-66

Abstract

Macan tutul jawa (Panthera pardus melas) merupakan predator puncak yang berstatus dilindungi, kritis (critically endangered), dan salah satu dari 25 satwa prioritas nasional. Data dan informasi terkait penggunaan habitat dan pemodelan distribusi spasial macan tutul jawa masih sedikit. Tujuan dari penelitian ini adalah mengidentifikasi penggunaan habitat macan tutul jawa, serta membuat pemodelan distribusi spasial macan tutul jawa. Data penelitian ini dikumpulkan melalui pemasangan camera trap, metode eksplorasi, dan pengumpulan variabel lingkungan dengan metode Maximum Entropy. Analisis dilakukan menggunakan Relative Use Index, pemodelan Maximum Entropy, dan Relative Abundance Index. Berdasarkan penelitian, penggunaan habitat oleh macan tutul jawa dengan nilai paling tinggi terdapat pada tipe habitat berupa hutan alam primer, ketinggian 751-1.250 mdpl, dan kemiringan lahan curam (26-40%), dengan sedikit gangguan manusia. Variabel lingkungan yang paling berpengaruh adalah jarak dari satwa mangsa, lereng, dan ketinggian. Penelitian ini menghasilkan implikasi pengelolaan, yaitu 1) area yang dinilai sesuai bagi macan tutul jawa dapat dipertahankan keberadaannya, sedangkan area yang kurang sesuai dapat dilakukan perbaikan habitat; 2) integrasi antara kawasan konservasi dengan kawasan hutan disekitarnya penting untuk dilakukan agar populasi macan tutul jawa dapat tertampung dengan baik, 3) mitigasi konflik juga penting untuk dilakukan melalui kerja sama yang melibatkan seluruh pemangku kepentingan.
PENGGUNAAN PARAMETER MORFOMETRIK UNTUK PENDUGAAN UMUR SIAMANG SUMATERA (Symphalagus syndactylus Raffles, 1821) Yanto Santosa; Fifin Nopiansyah; Abdul Haris Mustari; Dede Aulia Rahman
Jurnal Penelitian Hutan dan Konservasi Alam Vol 8, No 1 (2011): Jurnal Penelitian Hutan dan Konservasi Alam
Publisher : Pusat Penelitian dan Pengembangan Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphka.2011.8.1.25-33

Abstract

Memahami umur satwa merupakan aspek penting untuk mengidentifikasi struktur umurnya. Struktur umur adalah salah satu parameter demografik yang penting untuk dipelajari terkait tujuan pengelolaan populasi. Salah satu teknik estimasi usia dapat didekati dari ukuran organ (morphometric). Penelitian ini dilakukan dari Mei hingga Agustus 2007 pada Pusat Penyelamatan Satwa Cikananga, Jawa Barat dan Kalaweit Pusat, Sumatera Barat. Penelitian ini menggunakan 14 parameter dan 40 sampel dari siamang (Symphalagus syndactylus Raffles, 1821), terdiri dari 24 jantan dan 16 betina. Hasil analisis statistik (regresi linier berganda dengan metode bertahap) korelasi antara umur (Y) dengan lingkar wajah (LM) diperoleh persamaan regresi untuk Umur = -14,546 + 0,801 LM untuk jantan (1-15 tahun), panjang tangan (PTT) dengan Umur = -2,091 + 0,496 PTT untuk jantan (1-6 tahun), lingkar dada (LD) dengan Umur = -15,328 + 0,533 LD untuk betina (2-14 tahun), lingkar dada dengan Umur = -5,331 + 0,312 LD untuk jantan dan betina (1-15 tahun). Ukuran morfologikal dalam hal ini lingkar wajah, panjang tangan, lingkar dada merupakan pertumbuhan panjang hewan yang mudah dilihat dengan mata dan merupakan parameter penentuan kelas umur pada siamang sumatera (Symphalagus syndactylus Raffles, 1821). Parameter morfometrik yangdigunakan merupakan bagian-bagian tubuh yang mudah terlihat dan mudah diukur dan merupakan bagian terpenting dalam sebuah teknik penentuan umur menggunakan metode morfometrik.
Co-Authors . TAQIUDDIN ABDUL HARIS MUSTARI Aprillyasari, Wulan Mayang Aryo Adhi Condro Arzyana Sunkar Asep Yayus Firdaus Atih Sundawiati, Atih Azizah, Lutfia Bakhtiar Aji Bashori, Sayid Akmal Burhanuddin Masy'ud Dones Rinaldi Eko Prastio Ramadhan Elfrida Ratnawati Ervizal AMZU Fauziah Ramadhana Febriyana, Aliyyah Zulfa Felayati, Nela Resta Fifin Nopiansyah fifin Nopiansyah, fifin Firman Arief Ghimar, Migo Fannan Giri, Misbah Satria Hendra Gunawan Ilham Setiawan Noer Ilham Setiawan Noer Julius Paolo Siregar Kurniawan, Henri Kusuma, Bita Padma Mandala, Bakti Masy'ud, Burhanuddin Maulahila, Haikal Idris Mirza Dikari Kusrini Mochamad Syamsudin Muhammad Farid Al-Faritsi Nasution, Siti Noor Haliza Nugrahareni, Hermita Widi Nyoto Santoso Pamungkas, Pandu Jati Puji Rianti Raden Danang Wijayanto Raden Yosi Zainal Muhammad Riki Herliansyah Rinekso, Albert Joni Samih, Sulthan Falah Satria Giri Sodahlan, Mohammad Erlan Sunderland-Groves, Jacqueline L Trisna Rizky Martiyani Ina Triwahyudi, Fajar Rizki Ujang Mamat Rahmat YANTO SANTOSA yogi prasetyo Yopin Okta Ilham Yudi Setiawan Yudi Setiawan