Judul: Habitat Characteristics of Sunda Clouded Leopard (Neofelis dardi Cuvier, 1823) in the Area of Batutegi Protection Forest Lampung
Abstrak: Macan dahan sunda (Neofelis diardi Cuvier, 1823) adalah satwa pemangsa yang terancam oleh fragmentasi habitat karena alih fungsi hutan menjadi pemukiman dan lahan pertanian. Salah satu habitat macan dahan sunda di Sumatra adalah di Hutan Lindung Batutegi. Penelitian ini bertujuan mengidentifikasi fungsi-fungsi habitat macan dahan sunda dan karakteristiknya. Data dikumpulkan melalui pengamatan langsung menggunakan petak-petak vegetasi, transek garis, kamera jebak, dan pengamatan tidak langsung untuk menentukan jejak-jejak aktivitas satwa. Analisis vegetasi dan tajuk digunakan untuk menggambarkan karakteristik habitat, sedangkan data satwa mangsa potensial dianalisis menggunakan indeks keanekaragaman dan kelimpahan jenis. Hasil menunjukkan area berburu macan dahan sunda adalah area bertutupan tajuk rapat (64,67%) dan terdapat banyak mangsa potensial. Mangsa potensial dengan keanekaragaman dan kelimpahan yang lebih tinggi ditemukan di habitat hutan dataran rendah (H’=2,35), sedangkan keanekaragaman mangsa potensial yang lebih rendah ditemukan di habitat hutan pegunungan bawah (H’=1,81). Area istirahat, tidur, dan berlindung macan dahan sunda adalah area-area bertutupan tajuk sangat rapat (78,64% dan 73,43%)., Sunda clouded leopard (Neofelis diardi Cuvier, 1823) is a predator that threatened by habitat fragmentation due to the conversion of forest into residential and agricultural areas. One of the habitats of sunda clouded leopard in Sumatra is in the Batutegi Protection Forest. This research aimed to identify the habitat functions of sunda clouded leopard and its characteristic. Data were collected by direct observation using vegetation plots, line transect, camera trapping, and indirect observation to determine signs of animal activities. Vegetation and canopy openness analysis was used to describe the habitat characteristic, while data of potential prey were analyzed using species diversity and abundance indices. The results show that hunting area for sunda clouded leopard is an area with dense canopy cover (64,67%) and abundance potential prey. Potential prey diversity and abundance with higher rate found in lowland forest (H’=2,35), while the lower rate found in sub-montane forest (H’=1,81). Resting, sleeping, and hiding area for sunda clouded leopard are areas with very dense canopy cover (78,64% and 73,43%).
Keyword: macan dahan sunda, habitat, satwa mangsa, habitat, prey, sunda clouded leopard

Judul: Sebaran Spasial dan Tipe Metapopulasi Macan Dahan (Neofelis diardi Cuvier, 1823) di Taman Nasional Sebangau, Provinsi Kalimantan Tengah.
Abstrak: Sunda clouded leopard (Neofelis diardi Cuvier, 1823) is top predator in Sebangau National Park (SNP) forest which their existence are more threats caused by loss and fragmentation habitat in order that is potential to make N. diardi devided in to be several sub population or known as a metapopulation. This study aimed to obtain information about the spatial distribution of sunda clouded leopard in SNP and predict the risk of local extinction by identifying the type of metapopulation. Data collection was conducted from June until November 2014 by using study literature method, interviews, download, field orientation and combination of direct and indirect observation methods such as track set, grid, camera trap, and sign of animal (footprints, feces, claw, scratch, scrape, and voice). This study showed that distribution of N. diardi influenced by the distance from water sources (P = 0.002) and potential disturbance (P = 0.017), forest canopy cover (P = 0.04), peat depth (P = 0.002), and the type of habitat in SNP (P = 0.011) also the presence and abundance of preys, but only the altitude factor didn‟t affect toward distribution of N. diardi (P = 0.064). Spatial distribution patterns of N. diardi in SNP was clumped (x2hitung = 39.67, x20.025 = 26.12) with type of metapopulation was patchy population due to fragmentation from the existance of canal network so it had a low risk of local extinction, but the type of metapopulation could be changed by following the changes of habitat connectivity and the existence of threat to the N. diardi and their habitats.
Keyword: distribution, metapopulation, Neofelis diardi, sebangau national park

Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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