Judul: Distribution and Density of The Great Argus (Argusianus argus) in Bukit Barisan Selatan National Park
Abstrak: Kuau raja (Argusianus argus) adalah salah satu Outstanding Universal Value di Taman Nasional Bukit Barisan Selatan (TNBBS) yang termasuk dalam Cluster Mountanious Tropical Rainforest Heritage Site of Sumatera bersama dengan Taman Nasional Kerinci Seblat dan Taman Nasional Gunung Leuser. Status konservasi kuau raja tergolong rentan (Vulnerable) berdasarkan IUCN-redlist. Spesies ini semakin terancam karena deforestasi dan fragmentasi habitat, sehingga sangat perlu dilakukan upaya konservasi untuk menjamin kelestariannya. Upaya ini terkendala karena terbatasnya informasi keberadaan spesies dan distribusinya. Beberapa penelitian terkait populasi dan habitat kuau raja telah dilakukan. Akan tetapi, faktor lingkungan yang mempengaruhi keberadaannya tidak pernah divalidasi. Penelitian ini bertujuan untuk memprediksi pola penyebaran populasi, kepadatan populasi serta membangun model distribusi spesies dan mengidentifikasi faktor prediktor yang berpengaruh terhadap kehadiran kuau raja di Stasiun Penelitian Way Canguk (SPWC)-TNBBS. Data kehadiran kuau raja didapatkan melalui observasi langsung dan pemasangan camera trap. Analisis vegetasi juga dilakukan untuk mengidentifikasi kondisi habitat kuau raja. Algoritma yang digunakan dalam pemodelan adalah Maxent. Metode machine learning sederhana ini biasa digunakan untuk mempelajari kesesuaian habitat suatu spesies karena cukup mudah untuk dipahami. Variabel lingkungan yang digunakan adalah parameter fisik (elevasi, kemiringan lereng, jarak dari sungai, Normalized Difference Moisture Index/NDMI), parameter iklim (suhu, curah hujan), parameter proksi faktor gangguan antropogenik (jarak dari jalan, jarak dari pemukiman) dan parameter biologis (Normalized Difference Vegetation Index/NDVI, tutupan lahan). Bentuk pola sebaran kuau raja di SPWC adalah mengelompok dengan dugaan ukuran populasi mencapai 6 ind/km2. Kuau raja lebih banyak dijumpai pada tipe tutupan lahan hutan primer namun jangkauan suaranya masih terdengar pada tutupan hutan sekunder dan riparian. Model distribusi spesies dengan MaxEnt mampu memetakan kesesuaian habitat kuau raja dengan akurat (AUC = 0.846). Faktor prediktor yang berpengaruh terhadap distribusi kuau raja adalah jarak dari jalan, curah hujan dan keberadaan hutan primer. Hasil studi menunjukkan bahwa di SPWC, sebagai bagian dari TNBBS mempunya area yang luas sebagai habitat kuau raja dalam bentuk hutan primer, namun keberaaan jalan yang melintasi wilayah taman nasional memicu deforestasi dan fragmentasi akan mempengaruhi kehadiran kuau raja. Upaya konservasi hutan alam dengan menekan deforestasi serta restorasi lahan terdegradasi perlu dilakukan untuk meningkatkan kesesuaian habitat., The Great Argus (Argusianus argus) is one of the Outstanding Universal Values in Bukit Barisan Selatan National Park (BBSNP) categorized in Cluster Mountainous Tropical Rainforest Heritage Site of Sumatera. The conservation status of the Great Argus is classified as vulnerable under the IUCN-Redlist. This species is increasingly threatened due to deforestation and habitat fragmentation, so conservation efforts are urgently needed. This effort is hamphered by the limited information on the existence of species distribution. Several studies related to the Great Argus population and habitat have been conducted. However, environmental factors that affect their presence have never been validated. This research aims to predict distribution pattern, population density and build a species distribution model also identify the environmental variables that affect the presence of the Great Argus in Way Canguk Research Stations (WCRS)-BBSNP. The presence data of kuau raja was obtained through direct observation and the installation of camera traps. Vegetation analysis was also carried out to identify habitat condition. The algorithm used was Maxent. This machine learning is
Keyword: conservation, Maximum Entropy, phasianidae, habitat suitability prediction

Judul: Sebaran dan Pola Perilaku Kuau raja (Argusianus argus) di Stasiun Penelitian Way Canguk, Taman Nasional Bukit Barisan Selatan (TNBBS)
Abstrak: Great Argus (Argusianus argus) is a member of large birds in the Phasianidae that more often use primary forest and its distribution includes Malaysia, Borneo, and Sumatra. The purpose of this research is to study and describe the behaviour of the great Argus and identify patterns of behavior in several types of habitat (primary forests, riparian, and former fire). Behavior was observed by using focal animal sampling and one-zero sampling methods, that are then analyzed using persentage of behavior. The encounter of Great argus only occurred in primary and riparian habitat. Daily behavior obtained consisted of seven behavior, those are: epimeletic behavior (probe) (32,26%), vocal behavior (31.48%), investigative behavior (18.07%), foraging (9,19%), walking (6,82%), resting (1.87%), and sexual behavior (0.31%).
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Judul: Membran Komposit Kitosan-Zeolit untuk Aplikasi Direct Methanol Fuel Cell
Abstrak: Direct methanol fuel cell (DMFC) is a fuel cell that utilize methanol as the fuel source. The electrolyte membrane used in the DMFC system in this research was chitosan-zeolite composite membrane. The composite membrane was synthesized with chitosan-zeolite composition variation of 1:1, 1:2, 1:3, and 2:1. The membranes were analyzed by Fourier transform infrared spectrophotometer (FTIR) and scanning electron microscope, and for the specific gravity. Membrane performances were tested with methanol uptake, methanol permeability, conductivity, and potential difference in the DMFC system. The FTIR spectrum showed no formation of new functional groups inducating that the composite membrane was a result of physical mixing. Morphological analysis showed that the membrane was nonporous. Chitosan-zeolite 1:3 composite membrane had the highest specific gravity and methanol uptake, 1.4226 g/mL and 41.44%, respectively. The highest proton conductivity was showed by the 1:2 chitosanzeolite composite membrane, namely 7.2946× 10-7 S/cm. Based on this research results, chitosan-zeolite composite membrane can be applied in DMFC system.
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