Judul: Pemodelan Spasial Kesesuaian Habitat Lutung Jawa (Trachypithecus auratus Geoffroy, 1812) di Resort Rowobendo Taman Nasional Alas Purwo
Abstrak: One of the Ebony leaf monkey habitat is Rowobendo Resort in Alas Purwo National Park. The research objectives are mapping habitat suitability, to identifying factors which highly influence habitat suitability and to determining area of Ebony leaf monkey habitat suitability. Ebony leaf monkey habitat suitability mapping was initiated by collection data, such as digital map, data survey and literature. This mapping was based on some habitat variables, namely NDVI, altitude, slope, distance from road, distance from river, and distance from village. The value from each points then being analyzed by using principal component analysis (PCA) to get the weight of each variable. Habitat suitability model of ebony leaf monkey was Y = (1.189*FkNDVI) + (2.546*Fkaltitude) + (1.058*Fkslope) + (1.058*Fkriver) + (2.546*Fkroad) + (2.546*Fkvillage). The habitat suitability map were reclassified into three suitability classes. The result showed that there were 953.60 ha of low habitat suitability, 1899.35 ha of medium habitat suitability, 859.43 ha of high habitat suitability. The habitat suitability map could be accepted by showing the validation about 87,10%.
Keyword: spatial modelling, habitat suitability, ebony leaf monkey

Judul: Parameter Demografi dan Penggunaan Ruang Vertikal Lutung Jawa (Trachypithecus auratus Geoffroy 1812) di Resort Tamanjaya Taman Nasional Ujung Kulon
Abstrak: Demography parameter of ebony leaf monkey at Tamanjaya Resort of Ujung Kulon National Park wasn’t knew. Demography parameter was important component to the studied of population. The purposed of this study was to estimated demography parameter and indentification of used spatial vertical. The method used of demography parameter was consentration count method. The continuous recording method used for the analysis of the used of space, and method used in the analysis vegetation was plot method. Result of the study showed there were 17 individual of 3 grups, with composision 5 childerns, 4 juvenliles, 3 adult males and 5 adult females. Sex ratio from 3 groups were 1:1.6. Birthrate were 0.29. The highest mortality occured from juvenile to adult was 0.66. Ebony leaf monkey in Tamanjaya Resort used B and C level.
Keyword: Bogor Agricultural University (IPB), Demography parameter, ebony leaf monkey, use spatial vertical, Conservation count

Judul: Katalis Zink Ferit Tersubstitusi Cu untuk Oksidasi Benzil Alkohol
Abstrak: Katalis berperan dalam menurunkan energi aktivasi. Katalis ZnFe2O4 dan ZnFe2O4 tersubstitusi Cu disintesis menggunakan metode kopresipitasi untuk digunakan dalam oksidasi benzil alkohol. Katalis dicirikan dengan spektrofotometer inframerah (FTIR) dan difraktometer sinar-X. Spektrum FTIR menunjukkan puncak serapan dari ikatan Zn-O dan Fe-O masing-masing pada rentang 559‒575 cm-1 dan 419‒447 cm-1. Difraktogram menunjukkan terbentuknya fase tunggal Zn0.6Cu0.4Fe2O4 pada katalis ZnFe2O4 tersubstitusi Cu 20%. Benzil alkohol dioksidasi dengan sistem refluks. Konversi benzil alkohol meningkat dengan meningkatnya suhu. Kadar benzaldehida yang dihasilkan dengan katalis ZnFe2O4 tersubstitusi Cu 20% lebih tinggi dibandingkan dengan katalis ZnFe2O4 yang tidak tersubstitusi dan yang tersubstitusi Cu 60 dan 80%. Hal tersebut menunjukkan bahwa katalis ZnFe2O4 tersubstitusi Cu 20% memiliki kinerja yang lebih baik dalam oksidasi benzil alkohol menjadi benzaldehida dengan kadar benzaldehida 8.763%.
Keyword: Benzil alkohol, katalis, oksidasi, ZnFe2O4