Judul: Habitat characteristics of timor friarbird philemon inornatus in Camplong Landscape Kupang District, East Nusa Tenggara
Abstrak: Timor Friarbird (Philemon inornatus, G. R. Gray, 1846) is one of the six endemic birds of Timor and is a protected species. The population of bird is suspected to have been decreasing over the past six years along with the decreasing of the quantity and quality of physical and biotic factors of its habitat. Knowledge on landscape spatial pattern could be used to evaluate the quantity and quality of habitat. This research aimed at identifying spatial habitat characteristics of Timor Friarbird based on dominant factors of physical and biotic habitat components. Principle Component Analysis (PCA) on the physical habitat factors showed that variables that have strong correlation with the presence of the bird were Normalized Difference Vegetation Index (NDVI), slope, distance from secondary forest, distance from bush, distance from cashew plantation, distance from crop plantation, and distance from roads. The biotic factors that have strong correlation with the presence of Timor Friarbird were the total number of plant species, number of plants used for food and cover, and mean height of trees. Height of poles was the only variable that has no correlation with the presence of Timor Friarbird. The most dominant physical and biotic factors that influent the presence of Timor Friarbird at a site are the density of foraging trees, slope, distance from the river, the distance from secondary forest, the density of cover pole and the distance from road. The estimation population of Timor Friarbird in Camplong region is low; this might be caused by low feeding tree density, high rates of poaching, the uneven distribution of feed vegetation and the flowering season, habitat degradation due to illegal logging, grazing cattle in the wild, and invasion of siam weed or chromolaena (Chromolaena odorata). The results of land cover classification at Camplong region based on Landsat_5 Thematic Mapper (TM) image with ArcGIS 9.3 and Erdas 9.1 obtained 11 land cover classes, with shrub as the dominant class. Keyword: Philemon inornatus, Habitat Spatial Characteristics, PCA, Population, Land Cover
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Judul: Pengelolaan Lanskap Habitat Musim Dingin` Sikep Madu Asia (Pernis ptilorhyncus) Berbasis Data Satellite Tracking Di Kalimantan Tengah
Abstrak: Since 2003, 49 Oriental Honey Buzzards (OHB) had been satellite tracked and 47% (23 raptors) have selected Borneo Island as their wintering habitat which is composed by core and edge habitat. The objective of this study are to identify the landscape characteristics of wintering habitat, to compare core and edge habitat characteristics, to compare landscape habitat characteristics in West and South Borneo, and to recommend the landscape management plan of OHB’s wintering habitat. Landscape habitat characteristics were analyzed both in core and edge habitat using Principal Component Analysis (PCA) combined with GIS and t-student test was used to compare the habitat characteristics both in West and South Borneo. The first ten principal components (PCs) and thirteen PCs were retained, which are explained by 77.737% and 78.027% of the data variance in landscape characteristics of core and edge habitats. The basic characteristic between that habitats were not found. According to the landscape characteristics comparison, both in core and edge habitat, a landscape management plan was
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Judul: Konversi Asam Stearat dan Asam Oleat Menjadi Senyawa Oksazolina dengan Katalis Zeolit Teraktivasi Berbantuan Gelombang Mikro.
Abstrak: Oksazolina adalah senyawa heterosiklik dengan R tertentu dapat digunakan sebagai antikorosi karena mempunyai kerapatan elektron yang tinggi sehingga dapat terabsorpsi kuat pada permukaan logam. Penelitian ini bertujuan menyintesis senyawa 2-heptadesil-4,5-dihidrooksazol dan (Z)-2-heptades-8-en-1- il-4,5-dihidrooksazol dengan melakukan konversi dari asam stearat dan asam oleat menggunakan aminoalkohol sebagai reagen dan zeolit teraktivasi sebagai katalis berbantuan gelombang mikro pada beragam daya. Daya optimum ialah 300 W. Rendemen yang diperoleh yaitu 55% untuk senyawa (Z)-2-heptades-8-en-1-il-4,5- dihidrooksazol dan 6,5% untuk senyawa 2-heptadesil-4,5-dihidrooksazol. Stuktur oksazolina dicirikan berdasarkan spektrum inframerah yang menghasilkan pita spektrum baru pada bilangan gelombang 1650 cm-1 dan 1044 cm-1, masingmasing untuk gugus fungsi imina dan eter, selanjutnya dicirikan dengan teknik resonansi magnetik inti.
Keyword: antikorosi, asam oleat, asam stearat, oksazolina, oksazolina, zeolit