Judul: Keanekaragaman Kupu-kupu, Desain Penangkaran dan Pengembangannya Sebagai Objek Wisata di Hutan Pendidikan Gunung Walat Sukabumi.
Abstrak: Butterfly is a pollinator insect which has a beautiful form and color of wings that can be an attraction. Gunung Walat Education of Forest (GWEF) is an area that has a potential to support the life of butterfly. The aim of this research is to assess the diversity of butterfly species, to design a butterfly breeding to design tourism programs based on butterflies and also assess the feasibility of butterfly captivity busines at Gunung Walat Education Forest (GWEF). Method which is used in this research is Line Transect with the size of 20 x 20 m as much as 20 plot. This research found 412 individuals of 67 species of butterfly which belongs to 5 family in GWEF. Species that can be found in the six study sites is Cinitia iapis. This species also dominates in every type of research habitat. The butterfly captive breeding which is managed with intensive systems is needed to preserve GWEF butterfly. Two tour packages based on the butterfly that can be developed in GWEF are Butterfly finger and Butterfly park which can be choose by every age ranges.
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Judul: Keanekaragaman Jenis Kupu-kupu pada Beberapa Tipe Habitat di Pondok Ambung Taman Nasional Tanjung Puting Kalimantan Tengah
Abstrak: Tanjung Puting National Park, has megabiodiversity which still unexplorated all of them. Butterflies as part of biodiversity which still unexplorated, has important role as pollinator and with it’s wonderful colored wings has high value economically. Purposes of this study are to identified species diversity of butterflies in several habitat types and to analyze species richness, species diversity, evenness, and similarity of butterflies in every habitat types and to analyze correlation between habitat characteristics and species diversity of butterflies includes species richness, species diversity, and evenness of butterflies. This study conducted for two months from July to August 2009 in Pondok Ambung, Tanjung Puting National Park, Central Kalimantan, which located in eight different types of habitats included lowland forest, swamp forest, peat swamp forest, kerangas (dry-land habitat), grassland, burned forest, Camp Ambung, and nursery camp. The method used is by transect method in length 500 m, one transect for every habitat types, by method of sweeping and trapping used rambutans and watermelon as trap bait. Data collected were butterflies species, individuals per species, habitat characteristics included structure, composition, types of vegetation and physics and biotic component of habitat. Data analysis included species richness, species diversity, evenness, similarity coefficient, vegetation analysis, and correlation analysis between habitat characteristics and butterflies diversity. During the study, a total of 76 butterflies species were recorded included family of Papilionidae (11 species), Pieridae (6 species), Nymphalidae (43 species), Lycaenidae (14 species), and Hesperiidae (2 species). Species number for every type of habitat founded lowland forest 33 species, swamp forest 24 species, peat swamp forest 13 species, kerangas (dry-land habitat) 20 species, grassland 11 species, burned forest 27 species, Camp Ambung 37 species, and nursery camp 32 species. The highest for species richness is Camp Ambung and the lowest is grassland area. For species diversity the highest is lowland forest and the lowest is grassland. Types of habitat with low scale for evenness are grassland and burned forest. Types of habitat with highest scale for similarity are between Camp Ambung and nursery camp and the lowest are between peat swamp forest and grassland. There is founded a relation between habitat condition and butterflies diversity which depend on temperature and relative humidity, open area, water source, and vegetation as food plant, shelter, and cover for butterflies.
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Judul: Karakteristik Carboxymethyl Chitosan Dengan Variasi Konsentrasi NaOH
Abstrak: Carboxymethyl chitosan is chitosan derivative product obtained from chemical modification. CMCh were made by alkalization process and carboxymethylation process. Factors that affect CMCh characteristics were excess sodium hydroxide in alkalization process, ratio between chitosan and monochloroacetic acid, and carboxymethylation temperature. The objectives of this research were to study the NaOH effect to CMCh characteristics, to learn process of making CMCh, to set the proper concentration of NaOH, and to analyze CMCh characteristics. CMCh yields were 110.72%-114.22%. CMCh pH value were 3.74-4.31. The optimum NaOH concentration to obtain the best CHCh was 10 M. Percentage of CMCh moisture content was 10.70%-11.42%. Ash content and nitrogen content of CMCh were 0.49%-0.50% and 4.52%-4.81%. CMCh viscousity was 8.25 cps. Percentage of CMCh solubility was 61.61%-91.50%. The different functional groups from chitosan which observed in CMCh were C=O group, CH group from alkene functional group, C−O group, and C−O−C group.
Keyword: solubility., functional group, CMCh characteristics, chitosan, carboxymethyl chitosan