Judul: Penentuan Ukuran Populasi Minimum Lestari Monyet Ekor Panjang Macaca fascicularis Berdasarkan Parameter Demografi (Studi Kasus : Provinsi Lampung)
Abstrak: Determining minimum viable population is a fundamental corestone for conservation biology, but this estimate requires representative demographic parameters. Long-tailed macaque is facing seriously treatened due to high demand for exporting purpose. The need for quota is almost fulfilled from wild harvest and requires from certain age structure and only for male. As impact of this requirement, it will be dangerous for its sustainability in the future. The objectives of the research were to determine minimum viable population, to identify determine variables of minimum viable population and to identify environment factors which influence the minimum viable population. Data of environment factors and demographic parameters were obtained from four different habitat types in Lampung Province. The algebra of Leslie Matrix was used to determine the minimum viable population. The research resulted in the value of minimum viable population varied from each group and its average number was 35 individual consist of 3 male and 6 female of infant, 3 male and 7 female of juvenile, 1 male and 3 female of sub adult, and 3 male and 7 female of adult. The parameter demographic variables which determined the minimum viable population were survival and fecundity. The sensitive analysis and regression showed that survival was the most sensitive variable with the equation was Y = 0,031X1 + 0.518. Multivariate regression analysis was used to identify the environment factors which affected the birth and the death. It showed that the tree density was the most influenced environment variables to birth with equation was Y = 2,478 + 1,56X4 and the death was infleunced by tree density and pole density with the equation was Y = 3,837-2,55X4 -1,93X2
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Judul: Penentuan Kuota Panen Monyet Ekor Panjang Macaca fascicularis Berdasarkan Parameter Demografi
Abstrak: Monyet ekor panjang (Macaca fascicularis) merupakan salah satu satwa liar dalam daftar jenis kuota pengambilan tumbuhan alam dan penangkapan satwa liar. Peningkatan jumlah kuota yang terjadi dikhawatirkan akan mengancam kelestarian satwa ini. Penelitian ini bertujuan untuk menentukan ukuran kuota panen monyet ekor panjang, mengidentifikasi peubah-peubah parameter demografi yang mempengaruhi kuota, dan mengidentifikasi pengaruh faktor lingkungan terhadap parameter demografi yang mempengaruhi kuota. Manfaat yang diharapkan dari penelitian ini adalah menjadi bahan pertimbangan dalam menentukan kuota panen monyet ekor panjang di suatu daerah. Penelitian dilakukan di Suaka Margasatwa (SM) Paliyan yang merupakan kawasan karst dan Kaliurang yang merupakan hutan pegunungan. Waktu penelitian dilakukan pada bulan Nopember 2009 hingga Januari 2010. Pengumpulan data dilakukan melalui studi literatur dan pengamatan di lapangan. Jenis data yang dikumpulkan meliputi kondisi bio fisik lokasi penelitian dan parameter demografi masing-masing kelompok monyet ekor panjang yang ditemui. Parameter demografi yang dianalisis dalam penelitian ini adalah natalitas kasar dan peluang hidup yang masing-masing terbagi dalam kelas umur bayi, anak, muda, dan dewasa dan pada jenis kelamin jantan dan betina. Analisis tumbuhan pakan dengan mencari nilai kerapatan. Pertumbuhan populasi tiap kelompok monyet ekor panjang dianalisis dengan matriks Leslie tidak terpaut kepadatan yang dimodifikasi. Metode untuk mengetahui nilai Minimum Viable Population (MVP) dengan menggunakan persamaan aljabar yaitu merupakan perpotongan dari nilai B=D dan Nt=N0. Nilai MVP merupakan ukuran kelestarian. Metode untuk mengetahui nilai kuota panen per kelompok yaitu dengan menggunakan rumus Q=Nt-MVP. Kuota panen ditentukan pada setiap kelas umur dan jenis kelamin. Metode untuk menganalisis peubah-peubah parameter demografi penentu kuota dan analisis pengaruh faktor lingkungan terhadap parameter demografi penentu kuota dilakukan dengan regresi linear.
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Judul: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4