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: Pengelolaan Rusa Sambar (Cervus unicolor equinus Kerr, 1972) di Taman Margasatwa Ragunan, Jakarta Selatan
Abstrak: Distribution of Sambar deer in Indonesia, Sambar deer spreads in Kalimantan island and Sumatera island. Their home land has been disturbed and threatened because of land degradation and wild hunt so they need to be consevationed. The goal of this research is to know the management technique of sambar deer. This research is taken in Taman Margasatwa Ragunan (TMR) on March untill April in 2013. The research method takes three steps, field observation, literature study and interviewer. Data analysis of descriptive and quantitative. From the results of the study revealed that population of rusa sambar in 2013 10 for sub-types (Cervus unicolor equinus). Sex ratio 1:2 show that it has low productivity. Cage model is ranch in 3744 m². Feeding is divided into two groups: basic feed (forage) and supplementary feed (bran, pellets, salt and mineral). Physical health condition is not good as skinny and there are injuries. The trainer there were 3 people. The advantage is recreation, education, research and conservation land for the rare animal.
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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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