Judul: Kondisi kualitas udara kota Cilegon sebagai bahan pertimbangan pembangunan hutan kota
Abstrak: Kota Cilegon sebagai kota industri memiliki pabrik dan perusahaan yang berperan penting baik secara nasional maupun internasional. Proses produksi yang terjadi, kondisi transportasi dan permukiman di Kota Cilegon berpotensial akan menimbulkan dampak terhadap komponen lingkungan, khususnya penurunan kualitas udara. Kegiatan pemantauan kualitas udara dimaksudkan untuk mengetahui sejauh mana tingkat pencemaran udara yang telah berlangsung sehingga dapat diambil tindakan untuk mengantisipasi dampak negatif yang ditimbulkan dari pencemaran udara dan sebagai dasar untuk penetapan kebijakan pengendalian pencemaran udara. Informasi mengenai kualitas udara dapat digunakan untuk membangun hutan kota terutama di lokasi yang memiliki konsentrasi polutan di atas baku mutu udara dan atau hampir mendekati baku mutu udara yang berlaku.
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Judul: Penentuan Luasan Optimal Hutan Kota Berdasarkan Emisi Karbondioksida (CO2) di Kota Cilegon Provinsi Banten
Abstrak: Cilegon is one of the industrial cities that experience development are rapidly. Density of population activities such as transportation and industrial activity led to an increase in water and air pollution and temperature. This research was intented to know the optimal area of urban forest based on carbon dioxide emissions in the air that are generated by fuel oil, Liquid Petroleum Gas, coal, humans, cattle, and rice fields and also know the location of potentially managed as urban forest. methods of research conducted is the literature studies, interviews, preparation work, direct observation and ground check. Cilegon has eight locations of urban forest with a total area 26.11 ha. Carbon dioxide emissions are produced in Cilegon city amounted to 13240029 tons/year, necessitating the addition of city forest 227243.89 ha. The value of Carbon dioxide emissions in 2030 is 3924365870 ton, so land required is 67362298 ha. The potential for urban city is residential area, public cemetery, the beach, empty land industry with long term development plan, and road network.
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Judul: Phylogeography and Species Limits in the Papuan White Snake (Micropechis ikaheka) (Reptilia: Serpentes: Elapidae)
Abstrak: Papua white snake, Micropechis ikaheka, has been distingushed into two subspecies M.i. ikaheka and M.i. fasciatus. However, due to lack of data on their morphology, distribution and ecology, both subspecies often ignored in scintific discussions and refers only byas , Micropechis ikaheka. This study was designed to document the differences between M.i. ikaheka and M.i fasciatus by using scales characteristics and reproductive organ or hemipenes. The study also examine, zoogeography, habitat, diet and cannibalism of both subspecies to better understanding the the ecology of one of the most venomous snakes in the world. This study consists of three topics with method and also different in the size samples, respectively. The first study is the histology and microtopography of the skin were studied using paraffin method and Scanning Electron Microscope (SEM). The second is the hemipenis were examined by following Myers and Cadle (2003), and Zaher and Prudente (2003). The third is the abdominal surgery was carried out to document diet type and the investigate phenomenon of cannibalism in the snake. Specimens for this study came from the collection from Museum Zoologicum Bogoriense (MZB) and Universitas Negeri Papua’s Laboratory (LZU). The research result also indicated that the markers of skin and hemipenis described the same structure and microornamentation in all M. ikaheka groups being compared. Based specimens examined morphological descriptions do not s support the further differentiation in Micropechis. In short, two markers that used in this study could not sufficiently indicate the differences in the level of species and subspecies of M. ikaheka. The study, however, were able to delineate zoogeography and skin color patterns, which fall into four groups: M. i. ikaheka; M. i. fasciatus. M. i. ssp. “intermediate”; and M. i. ssp “black”. This study also revealed that color variations did not overlap in their geographic distribution. It is therefore, it suggested that environmental factors may contribute to the skin color variations. It also assumed that habitat discontinuous and biogeography factors may also cause the loss of the connection between the original populations (vicarians) or follow colonization events (dispersal). The examined of 22 stomach contents of M. ikaheka shows this species is carnivorous, and prey on vertebrates such as amphibians, fish, reptiles, and Mammals. These snakes are opportunistic predators since they prey on all that can be captured, but mainly reptiles (61.5%), followed by mammals and fish (both 15.4%), and amphibians (7.7%). Although categorized as terrestrial animal, the diet study showed that M. ikaheka snakes often go into the water to hunt for fish (the sample from Yapen island), including eel (the sample from Aru island). Based on prey items indentified, there is evidence that M. ikaheka is cannibal. At this time, there still no record on reason for cannibalism, but it is assumed that cannibalism was due to competition between populations and means to control population.
Keyword: geographic variation, white snake, papua