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"Telah dilakukan penelitian terhadap perilaku stereotipe kukang jawa (Nycticebus javanicus) di kandang Pusat Rehabilitasi Satwa International Animal Rescue (IAR), Bogor. Penelitian bertujuan untuk mengetahui jenis dan frekuensi perilaku stereotipe pada kukang jawa, melihat hubungan frekuensi stereotipe dengan masa rehabilitasi, jenis kelamin dan interaksi sosial antar individu sebagai informasi pendukung program rehablitasi kukang jawa di IAR. Metode focal animal sampling digunakan untuk mengamati perilaku sembilan belas individu kukang jawa pada pukul 18.00--06.00 WIB selama bulan Mei--Juli 2010. Rata-rata sembilan belas kukang jawa menghabiskan 12,27% waktu nokturnalnya untuk melakukan perilaku stereotipe. Jenis perilaku stereotipe yang ditunjukkan ialah pacing, circular pathway, weaving. Frekuensi stereotipe ditemukan memiliki korelasi dengan frekuensi perilaku sosial. Masa rehabilitasi dan jenis kelamin tidak menunjukkan korelasi dengan frekuensi stereotipe.

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Study of stereotypic behavior on captived Javan slow loris (Nycticebus javanicus) has been conducted in International Animal Rescue (IAR), Bogor. Objective of this study is to identify types and frequency of stereotypic behavior from nineteen captived javan slow loris, to examine correlation of social interaction, time of rehabilitation and sex with the frequency of stereotypic behavior as an information to support javan slow lorises rehabilitation program. Focal animal sampling method was used to observed nineteen individuals from 6 pm to 6 am during May--July 2010. Approximately 12,27% of nineteen javan slow lorises time budget?s was spent for stereotypic behavior. Social interaction show a negatif correlation with stereotypic behavior. Sex and time of rehabilitation have no correlation with stereotypic behavior. "

"Perilaku kewaspadaan pada kukang (Nycticebus javanicus) kandidat rilis sangatlah penting agar dapat mengetahui tanda-tanda keberadaan predator, sehingga dapat bertahan hidup setelah dilepasliarkan ke alam. Pemberian perlakuan berupa suara beberapa predator diharapkan dapat memicu perilaku kewaspadaan kukang kandidat rilis terhadap predator. Penelitian mengenai respons kukang jawa kandidat rilis terhadap suara elang brontok (Nisaetus cirrhatus) dan ular sanca (Phyton molurus) telah dilakukan di Yayasan Inisiasi Alam Rehabilitasi Indonesia (YIARI), Bogor. Penelitian bertujuan untuk menganalisis perbedaan respons dan pengaruh suara predator terhadap perilaku kewaspadaan kukang jawa kandidat rilis menggunakan suara dari elang brontok (Nisaetus cirrhatus) dan ular sanca (Phyton molurus). Penelitian dilakukan pada bulan bulan Mei – Juni 2020 selama tiga pekan, dengan empat hari pengamatan setiap pekan. Metode yang digunakan yaitu continuous scan sampling dengan interval waktu 10 (sepuluh) menit tanpa jeda dan ad libitum. Pencatatan dilakukan terhadap aktivitas harian kukang jawa kandidat rilis dan responsnya terhadap suara predator. Objek penelitian yaitu dua pasang kukang jawa dan dua individu kukang jawa yang berada di 4 kandang rehabilitasi terpisah. Hasil pengamatan menunjukkan respons kewaspadaan yang teramati adalah alert (secara aktif mengamati lingkungan), back away (berjalan mundur dengan mata tetap mengawasi sekitar.), freeze (diam tanpa gerakan selama beberapa detik), dan scanning (mengamati sekitar sambil berjalan mengelilingi kandang). Berdasarkan Uji Wilcoxon yang dilakukan pada α = 0,05 hasilnya adalah tidak terdapat perbedaan antara perilaku praperlakuan dan pascaperlakuan suara predator. Hal tersebut diasumsikan karena suara predator kurang menyediakan stimulus yang dapat memengaruhi perubahan perilaku harian kukang jawa kandidat rilis pada praperlakuan dan pascaperlakuan secara signifikan.

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Behavior of alertness in rehabilitant slow lorises (Nycticebus javanicus) is very important in order to know the signs of predators, so that they can survive after being released into the wild. It is hoped that the provision of treatment in the form of the sound of several predators can trigger the rehabilitant's alert behaviour towards predators. Research on the response of the rehabilitant javan slow loris to the sound of changeable hawk-eagle (Nisaetus cirrhatus) and phyton (Phyton molurus) have been carried out at the Indonesian Foundation for Natural Rehabilitation Initiation (YIARI), Bogor. This study aims to determine the differences in response and influence of predatory sounds on alert behaviour of rehabilitant javan slow lorises using sounds from changeable hawk-eagle (Nisaetus cirrhatus) and phyton (Phyton molurus). The study was conducted in May - June 2020 for three weeks, with four observation days each week. The method used is continuous scan sampling with time intervals of 10 minutes without pauses and ad libitum. Recording is carried out on the daily activities of the rehabilitant javan slow loris and the response against the sound of predators. The object of the study were two pairs of javan slow lorises and two individual javan slow lorises in 4 separate rehabilitation cages. The results of the observations show that the observed alertness responses are alert (actively observing the environment), back away (walking backwards with keeping an eye on the surroundings), Freeze (silence without movement for a few seconds), and scanning (observing the surroundings while walking around the cage). Based on the Wilcoxon test carried out at α = 0.05, the result is that there is no difference between pre-treatment and post-treatment of predatory sounds. This is assumed because the sound of predators less influences daily behaviour change of rehabilitant javan slow loris on pre-treatment and post-treatment significantly."

"Telah dilakukan penelitian pemilihan lokasi tidur (sleepingsites) kukang jawa (NycticebusjavanicusE. Geoffroy, 1812) yang dilepasliarkan di kawasan hutan Gunung Salak Bogor, Jawa Barat. Penelitian bertujuan untuk mengetahui pemilihan lokasi tidur oleh kukang jawa. Penelitian dilakukan selama bulan Desember 2010 sampai dengan Mei 2011. Lokasi tidur yang digunakan terdiri dari 9 individu pohon yang terdiri dari 6 jenis pohon yaitu Melastomamalabathricum, Mallotuspeltatus, Rhodamniacinerea, Euodialatifolia, Pinangacoronatadan Amomumlappaceum. Terdapat preferensi pemilihan pohon berdasarkan tinggi, akan tetapi tidak terdapat preferensi pemilihan pohon berdasarkan DBH. Persebaran lokasi tidur terbagi berdasarkan ketinggian lokasi pelepasliaran.

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Study on sleeping sites selection of javan slow loris (Nycticebusjavanicus) has been conducted in the forest area of Mount Salak, Bogor, West Java. Objectives of this study is to understand sleeping sites selection by javan slow loris (Nycticebusjavanicus). Research was conducted during December 2010 until May 2011. The study noted nine trees consist of six species used by javan slow loris as sleeping sites which are Melastomamalabathricum, Mallotuspeltatus, Rhodamniacinerea, Euodialatifolia, Pinangacoronatadan Amomumlappaceum. There is preference while choosing the tree from the height, but there is no preference while choosing the tree from the DBH. Sleeping sites dissemination is related with the release sites altitude. "