Judul: Studi pakan dan perilaku makan rusa sambar (Cervus unicolor Kerr, 1972) di Resort Teluk Pulai, Taman Nasional Tanjung Puting, Kalimantan Tengah
Abstrak: The existence of sambar deer (Cervus unicolor) are increasingly threatened due to the destruction of habitat. One of the sambar deer protected area in Indonesia is Tanjung Puting National Park (TNTP). Population decline of sambar deer can be avoided by habitat management. Component of sambar deer habitat thats need to get more attention is food. An understanding of feeding behavior is needed as a complement to acquire the expertise and guidance sambar deer population. The aims of this study were: (1) understand the type of food, edible parts of plants and distribution pattern of sambar deer feed at Tanjung Puting National Park, (2) know the productivity, carrying capacity and the availability of sambar deer feed at Tanjung Puting National Park and (3) know the sambar deer feeding behavior at Tanjung Puting National Park. Data were obtained in three ways, consist of: literature study, field observation and interviews to stakeholders. Data were collected includes: vegetation analysis, identify the type of food, food productivity, food availability and feeding behavior of sambar deer. Results of vegetation analysis showed that the type of sambar deer foods in the Teluk Pulai Resort identified 53 plant species included to 33 families. Parts of plants eaten by sambar deer, consited: leaves (31 species), leaves and stems (4 species), leaves and flowers (6 species), leaves and fruits (10 species) and fruit as much as 2 types namely kasai (Pometia alnifolia) and betiti (Mangifera longipetiolata). The distribution pattern of sambar deer food plants including: clumped distribution (57,38%), random (16,39%) and unknown (26,23%). For plant species that follow the uniform pattern was not found. The data also showed that plant productivity of sambar deer food at Teluk Pulai Resort between 1.809.879,644 kg/day to 2.613.587,565 kg/day. Resulting carrying capacity of 2 individuals/ha or as many as 122.958 individuals in total. As for the amount of feed availability is 789.101.569,4 kg. Based on observations with a combination of focal animal sampling and time series methods about feeding behavior known that sambar deer eat on a tree is choosed based on height. Type the first leaves eaten by deer sambar are leaves on a tree that can be reached by sambar deer. Based on chi-square with 95% confidence interval indicates that the long eating sambar deer is influenced by gender and age (χ2 count = 121,547; χ2 table = 7,378).
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Judul: Kajian ekologi populasi rusa sambar (cervus unicolor)dalam pengusahaan taman buru gunung masigit kareumbi
Abstrak: Potensi kawasan konservasi dan hutan lindung di Indonesia masih belum optimal, bahkan tingkat keanekaragaman hayati cenderung menurun seiring dengan eksploitasi hutan. Dalam rangka pemanfaatan hutan secara optimum dengan prinsip sustainable dan mendorong sektor pariwisata maka taman buru yang memenuhi fungsi ekologis perlu dikembangkan. Untuk itu telah dilakukan penelitian yang bertujuan mengkaji aspek ekologi populasi rusa sambar (Cervus unicolor) dalam pengusahaan di Taman Buru Gunung Masigit Karcumbi (TBMK). Manfaatnya adalah sebagai bahan pertimbangan dalam penyusunan Rencana Pengusahaan Taman Buru di Indonesia, khususnya bagi TBMK. Metode pengumpulan data melalui pendekatan studi literatur, wawancara, pengamatan langsung kemudian dianalisis parameter populasi dan karakteristik kawasan menggunakan sistem informasi geografis. Hasil analisis Citra Landsat TM liputan Juni 2001 menunjukkan bahwa penutupan lahan di kawasan TBMK telah mengalami perubahan. Luas kawasan hutan lindung telah berkurang 29,85% dan kawasan hutan produksi berkurang 5,51%. Hasil analisis vegetasi ditemukan 87 jenis terdiri atas 44 jenis pohon dan 43 jenis vegetasi non pohon. Sebagian besar (63,64%) vegetasi non pohon yang menjadi sumber pakan rusa sambar tersebut merupakan family Poacea. Total produktivitas biomassa hijauan pakan rusa sambar sebanyak 20.790,6 kg/ha/th. Luas blok pemanfaatan efektif adalah 6.900,1 hektar. Total potensi hijauan yang tersedia dari seluruh jenis hijauan sumber pakan bagi rusa sambar di TBMK adalah 47.394,028,5 kg/th. Daya dukung bagi rusa sambar sebanyak 22.780 individu. Kawasan TBMK dapat menampung maksimum sebanyak 1300 orang pemburu untuk satu musim berburu. Berdasarkan analisis jumlah panen lestari maka populasi yang dapat diburu adalah sebanyak 624 individu. Musim berburu ditetapkan setelah masa empat tahun introduksi populasi. Jumlah individu yang diintroduksikan untuk memenuhi target buru tersebut adalah sebanyak 4.280 individu kelas umur dewasa, terdiri atas 713 jantan dan 3.556 betina
Keyword: Deer, Vegetasi, Daya dukung, Hunting target, Populasi, Hutan lindung

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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