Judul: Keanekaragaman Jenis Felidae Menggunakan Camera Trap di Resort Pemerihan-Way Haru, Taman Nasional Bukit Barisan Selatan.
Abstrak: Taman Nasional Bukit Barisan Selatan bekerjasama dengan beberapa organisasi non pemerintah yang bergerak di bidang pelestarian hidupan liar, salah satunya dengan Wildlife Conservation Society Indonesia Program (WCS-IP). Salah satu kegiatan rutin yang dilakukan setiap tahunnya adalah survei mamalia vertebrata terestrial seperti jenis Felidae menggunakan camera trap yang berlokasi di Resort Pemerihan-Way Haru. Tujuan penelitian ini adalah untuk mengidentifikasi karakteristik habitat, menganalisis keanekaragaman jenis, mengidentifikasi penyebaran, menganalisis tumpang tindih wilayah jelajah serta pola aktivitas dari jenis Felidae di Resort Pemerihan-Way Haru, Taman Nasional Bukit Barisan Selatan, Lampung. Teknik pengambilan data melalui analisis vegetasi dan tangkap-tangkap kembali. Indeks nilai penting mendominansi pada tingkat tumbuhan bawah adalah Etlingera sp. (INP = 11.23), tingkat semai dan pancang adalah Mallotus miquelianus (INP = 15.03) dan (INP = 17.51), tingkat tiang Dillenia excelsa (INP = 37.53) dan tingkat pohon Dracontomelon dao (INP = 14.89). Jenis satwa Felidae yang berhasil terekam melalui camera trap sebanyak dua jenis yakni kucing batu (Pardofelis marmorata) (RAI = 0.14; n = 2) dan kucing hutan (Prionailurus bengalensis) (RAI = 0.14; n = 2). Pola aktivitas dan tumpang tindih tidak dapat disimpulkan.
Keyword: camera trap, Felidae, karakteristik habitat, keanekaragaman jenis

Judul: Kelimpahan Jenis Mamalia Menggunakan Kamera Jebakan di Resort Gunung Botol Taman Nasional Gunung Halimun Salak
Abstrak: Gunung Halimun Salak National Park has many ecosystem types. The national park has many rare and protected species especially mammals. The objective of this study was to identify and quantify the abundance of mammals in the national park. The abundance of mammals was calculated using camera trap of Busnell type. To support the data, direct observation, setting of live trap, mist net, identification of foot print and analysis of vegetation were also conducted. The result showed that the highest abundance of mammals was deer (Muntiacus munjak) of 31.25% with an encounter rate of 34.37 photo/100 day, while the lowest was malaysian wood rat (Rattus tiomanicus), treeshrew (Tupaia javanica), plantain squirrel (Callosciurus notatus), malay badger (Mydaus javanensis), leopard cat (Prionailurus bengalensis), and banded linsang (Prionodon linsang) of 3.12%. By using direct observation, live trap and foot print it was showed that there were another 11 species mammals of 6 families. A total of 23 mammals species of 12 families recorded during this study in the national park.
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Judul: Approximation of the Median of Poisson Distribution Using the Relation of Poisson-Gamma Distribution
Abstrak: A major drawback of median is that median cannot usually be defined in closed form, even in the cases where their distribution functions are known. This study gives an approximation of the closed form for the median of the Poisson distribution by using the relation of Poisson-Gamma distribution. The approximation uses elementary techniques based on the monotonicity of certain sequences involving tail probabilities of the Poisson distribution and the Central Limit Theorem. Furthermore, a closed form expression for the mean absolute deviation 􀜧|􀜰􀰒 􀵆 􀜯􀝁􀝀􁈺􀜰􀰒􁈻| is also studied. The median is relevant because of the fact that it minimizes the mean absolute deviation of a Poisson random variable (􀜰􀰒􁈻 by considering median as central tendency.
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