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All Journal Jurnal Teknologi Journal of Tropical Biodiversity and Biotechnology Journal of Tropical Biodiversity
Sri Suci Utami Atmoko
Universitas Nasional
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Environmental Science Immunology & microbiology

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The Response of Orangutans to a Total Solar Eclipse Event Didik Prasetyo; Sri Suci Utami-Atmoko; Deni Kurniawan; Erin Vogel
Journal of Tropical Biodiversity Vol 1 No 2 (2021): April 2021
Publisher : Universitas Nasional Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (422.655 KB)

Abstract

A complete solar eclipse is a rare event, and we know very little about how other species, including our closest living relatives the primates, react to these events. We observed orangutans on the island of Borneo, Indonesia during a rare astronomical event of a total solar eclipse. Captive orangutans in Nyarumenteng rehabilitation center, Central Kalimantan were observed to document their reaction to this unexpected environmental event. Based on this study that was conducted in 2016, the dramatical behavior demonstrated in the time of the total solar eclipse, and the general response differed between before and after the event. During the total solar eclipse, flanged males tended to increase their social behavior compared to the unflanged males. These findings indicate that the total solar eclipse resulted in an environmental stressor for these captive orangutans.
Diversity and Threat Hunting of the Birds in the Labian-Leboyan Corridor West Kalimantan Gusti Wicaksono; Mohamad Arif Rifqi; Imran S.L Tobing; Sri Suci Utami Atmoko
Journal of Tropical Biodiversity Vol 1 No 3 (2021): August 2021
Publisher : Universitas Nasional Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (564.139 KB)

Abstract

Labian-Leboyan corridor is both lowland and peat swamp forested areas pointed in a strategic location between Betung Kerihun and Danau Sentarum National Park. The area is mostly managed by communities and essential areas for birds. This study is conducted to understand the diversity of birds and the threats in both peat swamp and lowland habitat using the 12 line transects method and direct observation to hunter's place. The study results are 173 bird species identified, 131 species associated with peat swamp forest, and 104 species associated with lowland forest. 108 individuals from 29 species of birds were captured for trade and meat in both habitats. Immediate conservation action is needed to support sustainable resources management of biodiversity, especially birds in the area.
KEBUTUHAN AIR BERSIH BERBASIS PIPA PERUSAHAAN DAERAH AIR MINUM (PDAM) DI KECAMATAN TEBET Achmad Sofyan; Khoe Susanto Kusumahadi; Sri Suci Utami Atmoko; Yeremiah Rubin Tjamin; Tatang Mitra Setia
Jurnal Teknologi Vol 14, No 2 (2022): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.14.2.233-240

Abstract

The fulfillment of clean water needs is one indicator of the level of quality of human life in an area, where clean water pipelines play an important role in supporting the fulfillment of the demand for clean water by the community. The population density of South Jakarta is 15,900 people per km2 with the highest population density is in Tebet District, namely 23,419 people per km2. As much as 51 percent of the population in Tebet uses groundwater as a source of clean water and the rest uses PAM water. The purpose of this study is to calculate the amount of clean water needs in the present condition and predict the water needs for the future conditions needed by residents in Tebet. By using the Stella 9.0.1 software, with the input of data on the number of villagers and the population growth rate, the population of Tebet District each year with a population growth graph can be determined to increase. It's different with projections that intervene with many factors, but show a decrease in water production and increase for domestic consumption, with projected weather variables not experiencing changes in water crises. In general, the trend of the level of water demand in 2019 and 2028 shows a decrease in water demand for irrigation, while the level of water demand for households, cities and industries (RKI) has increased.
Orang-utans’ (Pongo pygmaeus wurmbii) Activity Pattern in Camp Release and Feeding Site of Lamandau Wildlife Sanctuary, Central Borneo, Indonesia Novita Amalia; Dyah Perwitasari-Farajallah; Sri Suci Utami-Atmoko; Azhari Purbatrapsila
Journal of Tropical Biodiversity and Biotechnology Vol 8, No 1 (2023): April
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.70001

Abstract

The Bornean orang-utan (Pongo pygmaeus wurmbii) release process at Lamandau Wildlife Reserve applies the soft-release method. In this method, there is still provisioning additional food on the feeding site by human. The existence of camp release and feeding sites in the vicinity of release forests is assumed to have an impact on orang-utans’ activity patterns. This assumption is related to the principle of releasing them into their natural forest habitat, namely by reducing direct interaction between humans and orang-utans. The aims of this research were: (i) to measure the intensities of orang-utan presence on camp and feeding site, (ii) to analyze the correlation between phenology and orang-utan’s presence on camp and feeding site, and (iii) to assess orang-utan’s activity budgets, diet composition, and vertical used on camp, feeding site, and forest. Activity budgets of five group orang-utans with different categories based on age and sex were compared using the focal animal sampling method and instantaneous records. The analysis showed no correlation between the intensities of orang-utan presence and phenology. However, there were significant differences in activity patterns between adult and adolescent orang-utans. The findings revealed that adult orang-utans activity pattern tended to be high in resting at all observation locations while adolescents spending more their activity for feeding. Orang-utans at 0-10 m of height classes tend to do more activity. Almost all orang-utans feed on a non-forest diet (45-67%) in the camp release, feeding site, and surrounding. We assumed that the existence of a camp release and feeding site near the release point are affecting factors in a successful reintroduction of ex-rehabilitate orang-utans.   
Co-Authors Achmad Sofyan Azhari Purbatrapsila Deni Kurniawan Didik Prasetyo DYAH PERWITASARI -FARAJALLAH Erin Vogel Gusti Wicaksono Imran S.L Tobing Khoe Susanto Kusumahadi Mohamad Arif Rifqi Novita Amalia Tatang Mitra Setia Yeremiah Rubin Tjamin