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All Journal MEDIA KONSERVASI Jurnal Primatologi Indonesia Hemera Zoa Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Biosilampari: Jurnal Biologi Indonesian Journal of Applied Research (IJAR) Jurnal Penelitian Kehutanan Wallacea
Jansen Manansang
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Education Environmental Science Medicine & Pharmacology

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Population Density of Kloss’s Gibbon (Hylobates klossii) at Bojakan Resort, Siberut Island, West Sumatra: KEPADATAN POPULASI BILOU (Hylobates klossii) DI RESORT BOJAKAN, PULAU SIBERUT, SUMATERA BARAT Vallen Sakti Maulana; Ani Mardiastuti; Entang Iskandar; Jansen Manansang
Media Konservasi Vol 24 No 3 (2019): Media Konservasi Vol. 24 No. 3 Desember 2019
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (603.159 KB) | DOI: 10.29244/medkon.24.3.237-244

Abstract

Kloss’s gibbon (Hylobates klossii) is endemic primate to the Mentawai Islands of the West Sumatra, and currently categorized as Endangered according to IUCN Red List in 2008. The latest population information on Siberut Island is incomplete and not comprehensive yet. Assessment of population was used as a base in determining the conservation strategies. This study aimed to identify the Kloss’s gibbon population that includes population distribution, individual and group density, group size, and group composition. This research was conducted in Bojakan Resort, Siberut National Park, Siberut Island, Mentawai Islands, West Sumatra. Surveys for primates were carried out between November 2018 and Januari 2019. Following previous primate surveys and general recommendations, this study used line transect sampling. Total Kloss’s gibbon individuals found were 77 individuals with 25 groups. Average individual density was 12,8 individuals km2, group density was 4,2 groups km2, and group size was 3,08 individuals group. Kloss’s gibbon populations was affected by disruption of human activity. Kloss’s gibbon density in Bojakan Resort was higher compared to previous studies on Siberut Island. The percentage of Kloss’s gibbon groups that have a group size of more than two individuals was higher than the group of two individuals, indicating that forests in Bojakan Resort was abble to support the Kloss’s gibbon population. There were many groups that have at least one or more offspring, a good sign that regeneration progress was still ongoing. Monitoring and patrolling by National Park is needed to ensure the existence of the Kloss’s gibbon population in that area. Keywords: endemic primate, kloss’s gibbon, line transect sampling, monogamy
Tingkah Laku Owa Jawa (Hylobates moloch) di Fasilitas Penangkaran Pusat Studi Satwa Primata, Institut Pertanian Bogor Septiantina Dyah Riendriasari; Entang Iskandar; Jansen Manansang; Joko Pamungkas
Jurnal Primatologi Indonesia Vol. 6 No. 1 (2009)
Publisher : Pusat Studi Satwa Primata LPPM-IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (218.275 KB)

Abstract

The Javan Gibbon is a primate species endemic to Java, Indonesia and considered as an endangered species (IUCN 2008). The Primate Research Center of Bogor Agricultural University (PRC-IPB) in cooperation with Taman Safari Indonesia have established an ex situ breeding facility for the Javan Gibbon to support conservation program. The breeding was started in 2003, and up to recently, the pair of Javan Gibbons ( 15 and 7 years old) has had three offspring, and still occupy one common cage. Assessment of the Javan Gibbon’s behavior in captivity especially to the family with five individuals was conducted using focal animal sampling to provide basic behavioral data.  Moving was the greatest frequency (45.70%) of each individual compared to other behaviors, while resting was the greatest duration that occurred to the parents, and playing was the greatest duration (18.02%) to the offspring respectively.    Keywords : behavior, javan gibbon, endangered, captive breeding
FA-4 Assessment of Estrous Cycle Using Ultrasound to Determine Time of Insemination In Banteng (Bos javanicus, d’Alton 1823) Dedi Rahmat Setiadi; Muhammad Agil; Iis Afriantini; Tuty L Yusuf; Muchidin Noordin; Yohana Tri Hastuti; Setyaningsih Rambu Liwa; Jansen Manansang; Dondin Sajuthi
Hemera Zoa Proceedings of the 20th FAVA & the 15th KIVNAS PDHI 2018
Publisher : Hemera Zoa

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Abstract

Banteng is considered as endangered species by the International Union for Conservation of Nature (IUCN). Banteng is currently distributed in Java, in Kalimantan [Indonesian Borneo], Sabah [part of Malaysian Borneo], Myanmar, Thailand, Cambodia and, probably Lao PDR and Vietnam (1). The populations in the Asian mainland have decreased by about 80% in the last decades. The total number of wild banteng is estimated to about 5,000-8,000 animals. No population has more than 500 animals, only a few have more than 50. Reasons for the population decline are reduction of habitat, poaching, hybridisation with domesticated cattle, and infections with cattle diseases (4).Since the wild population has been declining continously and the numbers of individual are getting smaller, therefore captive breeding is urgently needed in order to support the conservation of Banteng sustainably. Although breeding program of Banteng is important, but information about the reproductive biology of Banteng is very limited. Breeding programs in Banteng can be done by natural mating or using assisted reproductive technology such as artificial insemination (AI). The aplication of AI in Banteng can support Banteng conservation program in order to increase heterozygosity, prevent inbreeding and possible to use of the Banteng bulls from different facilities for AI of females in all breeding facilities of Banteng.AI applications require information on the estrous cycle and estrous signs to determine the precise AI time. Clinical signs of estrous in Banteng is difficult to observe, therefore determining the time of AI must be done through rectal palpation and ultrasonography. The objectives of  this research is to assess estrous cycle to determine time of insemination.
FA-5 Semen Characteristics of Banteng (Bos javanicus) Collected by Electroejaculation Method Vincentia Trisna Yoelinda; Iis Afriantini; Muhammad Agil; Dedi R Setiadi; Tuty L Yusuf; Yohana Tri Hastuti; Jansen Manansang; Dondin Sajuthi
Hemera Zoa Proceedings of the 20th FAVA & the 15th KIVNAS PDHI 2018
Publisher : Hemera Zoa

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Abstract

Banteng (Bos javanicus) is listed as endangered species in IUCN Redlist. Only few thousand wild banteng survive and their numbers are decreasing as a result of hunting and the loss of habitat due to deforestation and conversion to agricultural land. One of the conservation measures is to preserve this species in ex-situ breeding center. The breeding centre with the largest number of individuals is Ragunan Zoo in Jakarta, with 21 animals. Despite those numbers of individuals available, the sex ratio was far from ideal at 16 males and five females. While in Taman Safari Prigen, there were with 16 individuals and a sex ratio of five males and 11 females [1] Since number of males are usually less than females, and also to avoid inbreeding in order to keep high heterozygosity population, therefore, assisted reproductive technology such as artificial insemination is considered to be necessary.For artificial insemination, semen collection sufficient quantitiy and quality of semen from males are needed. Thus, best semen collection method should be considered. Though transrectal massage procedure does not require the male to be anesthetized  prior to semen collection, semen collected by this technique contains urine contamination. Besides, volume of semen sample obtained by transrectal massage is lesser compared to electroejaculation. Electroejaculation is also suitable for wild animal because in this particular semen collection procedure, males are not required to be trained.The information about semen characteristics of banteng bulls collected by electroejaculation is less known. To date, study done by Johnston et al. (2002) is the only available data. That study only provided data from one semen sample from one 4-year-old banteng bull located at Western Plains Zoo [2]. Moreover such volume parameter and consistency was not reported from that study. Thus, this study is aimed to provide more reliable data from larger number of semen samples  collected by electroejaculation and to add information to previous data that are availabe.
Population and home range of the West Java Black Langur (Trachypithecus mauritius) in the forested area of Taman Safari Indonesia Manansang, Jansen; Sinaga, Walberto; Mansjoer, Sri Supraptini
Jurnal Penelitian Kehutanan Wallacea Vol. 12 No. 2 (2023)
Publisher : Foresty Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/jpkwallacea.v12i2.27773

Abstract

The West Java black langur (Trachypithecus mauritius) is an Indonesian endemic primate found on the island of Java. Status and Conservation of the species is classified as Vulnerable based on the IUCN Red List and is listed in Appendix 2 of CITES. The West Javan langurs have been protected by Indonesian law since 1999. Under the decree of the Minister of Environment and Forestry Number. P.106/MENLHK/SETJEN/KUM.1/12/2018. The study aimed to examine population the population of the species and to determine its home range the forested area of Taman Safari Indonesia Bogor. This research was carried out from January to September 2021. Method The data collection used was a combination of methods concentrated Concentration Count using the observation method directly in the field. Analyze population distribution patterns using Nearest Neighbors, while the population distribution was analyzed using the area of the outermost point of encounter. The results showed that there were two groups of the West Java black langur existed in the area. The first group was around the location of the two houses, the panda palace, and the Jaksa waterfall 32 individuals and the second group was consisted of 15 individuals. Based on the survey, it was estimated that with an population density of T. mauritius in the area was 0.18 individuals/km² while the group density was 0.008 group/km². Group I was known to have a home range area of 17 ha while Group II had larger home range with 25 ha. The West Java black langur in this area were found to inhabit the upper parts of the forest at the altitude of 1000 to 1550 m above sea level. Population distribution patterns classified as clustered in all West Java black langur groups. The distribution of the West Java black langur population in TSI Bogor covers 58% of the total area.
Population of The Javan Surili Langur Presbytis comata in The Taman Safari Indonesia Bogor Forest Area Sinaga, Walberto; Manansang, Jansen
Media Konservasi Vol. 29 No. 2 (2024): Media Konservasi Vol 29 No 2 May 2024
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/medkon.29.2.82

Abstract

Taman Safari Indonesia Bogor is a buffer zone for the Taman Nasional Gunung Gede Pangrango conservation forest area and is one of the habitats for the Javan surili langurs, but there is no research data on wild Javan surili langur populations. The object of research is to find out how many populations of Javan surili langurs are in the TSI Bogor forest area. The research method used the line transect method by collecting data on the number of individuals, the number of groups, the sex ratio, and the age structure. The research was conducted in four observation areas with varying lengths, observations were made at (06.00 - 17.00 WIB), and four repetitions were carried out on each observation path, the results showed that there were 16 Javan surili langurs individuals divided into one group, and the estimated population density was 0.06 individual/ha. The sex diversity of male and female surili langurs in the TSI Bogor forest area is 1:6 where the female Javan surili langurs are more than the male Javan surili langurs and for the age structure the largest Javan surili langurs are in the adult age class with a percentage of 43.75%, juvenile 31.25%, and the percentage of infant is 25%.
The Nursing and Respiratory Behaviour of The Bottlenose Dolphin Calf (Tursiops aduncus) in Captive Breeding Setiadi, Dedi Rahmat; Hastuti, Yohana Tri; Amani, Aqila Zata; Laksono, Mohamad Nanang Tejo; Manansang, Jansen; Mulia, Bongot Huaso; Manansang, Willem; Arifiantini, Raden Iis
Indonesian Journal of Applied Research (IJAR) Vol. 6 No. 1 (2025): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v6i1.585

Abstract

Bottlenose dolphins were often found in zoos and aquariums. Dolphin calves have a higher mortality rate in the first month after birth as they are unable to eat and breathe properly. The inability to thrive can affect growth until adulthood. This research was being conducted to better understand the nursing and breathing patterns of a bottlenose dolphin calf. Data were collected by observing the behaviour of a post-partum dolphin calf for 24 hours over 3 months (90 days). The behaviours observed were the calf's nursing (frequency, daily duration, and duration of suckling) and breathing (frequency). The results showed a decrease in the frequency of suckling and an increase in the duration of suckling, which indicated that the calf was becoming more successful at suckling. A constant decrease in respiratory frequency indicated a healthy growing calf due to an increase in lung capacity. These results indicated that the feeding and respiratory behaviour patterns of normally developing bottlenose dolphin calves showed a decrease in feeding frequency and an increase in feeding duration, as well as a decrease in respiratory frequency per week. Further studies on the feeding and respiratory behaviour of bottlenose dolphin calves.
INVENTORY OF WEST JAVA BLACK LANGUR [Trachypithecus mauritius] FEEDING PLANTS IN THE BOGOR TAMAN SAFARI INDONESIAN FOREST AREA Manansang, Jansen; Sinaga, Walberto; Mansjoer, Sri Supraptini
Jurnal Biosilampari : Jurnal Biologi Vol 5 No 2 (2023): Biosilampari
Publisher : LP4MK STKIP PGRI Lubuklinggau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31540/biosilampari.v5i2.2118

Abstract

The West Java black langur is one of the endemic primates on the island of West Java. Currently, the conservation status of the West Java black langur (Trachypithecus mauritius) is categorized as Vulnerable status, registered in Appendix II. This research was carried out from January to March 2022. The purpose of the study was to determine the types of forage plants, and the parts eaten by the West Java black langur responsive found in the Taman Safari Indonesia (TSI) Bogor forest area. The research method used is the observation method through direct observation in the field. The results showed that there were 14 types of feed for the answering West Java black langur, divided into 12 families. The most dominant parts of the plant eaten by responsive West Java black langurs are young leaves 42%, shoots 30%, and others 28%.
The model of Proboscis Monkey welfare in Indonesian Safari Park (Taman Safari Indonesia) using Five Domain Animal Welfare Imtiyaaz, Cassytta Dhiya; Alikodra, Hadi Sukadi; Manansang, Jansen; Trihastuti, Yohana; Darusman, Huda Shalahudi
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 15 No 4 (2025): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.15.4.724

Abstract

The proboscis monkey (Nasalis larvatus) is endemic to Borneo and is currently categorized as Endangered on the IUCN Red List. Not all proboscis monkeys can be conserved effectively in natural habitats. Zoos are ex-situ conservation, which aims to support conservation and ensure the welfare of animals. This research uses the Five Domain method to examine the welfare of proboscis monkeys at Taman Safari Indonesia (TSI) Bogor. The research was carried out from October 2022 to March 2023. The proboscis monkeys at TSI consumed feed ravenously, as indicated by the high percentage of ingestive behavior, 34.24%. Based on the MCU (medical check-up) results through interviews with veterinarians, the proboscis monkeys at TSI are in good health. No abnormal behavior was found in proboscis monkeys at TSI. Natural behavior and high use of environmental enrichment can be indicators of good welfare. Overall, proboscis monkeys at TSI show good welfare and management. The proboscis monkey welfare model can support ex-situ link in situ synergy as a sustainable conservation strategy. The condition of proboscis monkeys at TSI is in the welfare category based on behavioral observations and comprehensive studies.
Co-Authors Amani, Aqila Zata Ani Mardiastuti Darusman, Huda Shalahudi Dedi Rahmat Setiadi Dondin Sajuthi Entang Iskandar Hadi S Alikodra Hastuti, Yohana Tri Iis Afriantini Imtiyaaz, Cassytta Dhiya Laksono, Mohamad Nanang Tejo Manansang, Willem Muchidin Noordin MUHAMMAD AGIL Mulia, Bongot Huaso Pamungkas, Joko R. Iis Arifiantini Septiantina Dyah Riendriasari Setyaningsih Rambu Liwa Sri Supraptini Mansjoer Trihastuti, Yohana Tuty L Yusuf Vallen Sakti Maulana Vincentia Trisna Yoelinda Walberto Sinaga Yohana Tri Hastuti