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All Journal Bumi Lestari Jurnal MIPA PHARMACON Jurnal Bios Logos EUGENIA BERITA BIOLOGI Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Jurnal Entomologi Indonesia Akta Agrosia The Studies of Social Sciences Jurnal Riset Pembangunan : Media Hasil Penelitian dan Kajian Pembangunan Daerah Journal of Applied Data Sciences Vivabio : Jurnal Pengabdian Multidisiplin Berkala Penelitian Hayati Biofaal Journal Jurnal Ilmiah Sains Silvarum JAPB COCOS Jurnal Lentera: Penelitian dan Pengabdian Masyarakat
Saroyo Saroyo
Jurusan Biologi FMIPA Universitas Sam Ratulangi
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Journal : COCOS

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STUDI POPULASI AYAM HUTAN MERAH (Gallus gallus) DI KAWASAN HUTAN DESA TUMBOHON KECAMATAN TALAWAAN MINAHASA UTARA Glorio D. Pinaria; Fabiola B. Saroinsong; Hengki D. Walangitan; Saroyo -
COCOS Vol. 4 No. 1 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v4i1.3469

Abstract

ABSTRACTThis study aimed to estimate the population of red jungle fowl in the Tumbohon village. The method used in this study was a survey by the shaped line transect sampling to determine the population density (density) of red jungle fowl. It can be concluded that the density of the red jungle fowl in the forest area Tumbuhon village is 24.1 birds/km2. Value of density estimation based on the observation frequency in transects was 14.1 birds/km2 up to 34.1 birds/km2, while the value of density estimation based on the number of transects was 1.7 birds/km2 up to 46.5 birds/km2.Key words : Red Jungle Fowl, Tumbohon, Line Transect, Density
POTENSI TUMBUHAN PAKAN ALAMI bagi MONYET HITAM SULAWESI (Macaca nigra) di HUTAN LINDUNG GUNUNG MASARANG Rivo F. Rahasia; Johny S. Tasirin; Martina A. Langi; Saroyo Sumarto
COCOS Vol. 4 No. 5 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v4i5.4692

Abstract

ABSTRACT Mount Masarang Forest Reserve covers an area of 158,48 ha and is part of the natural habitat of the Sulawesi crested black macaque based on the geography and the forest. A population of Sulawesi crested black macaques may thrive here through introduction and migration from nearby populations. This research is aimed to study the potential of natural food plants of the Sulawesi crested black macaque (Macaca nigra) in Mount Masarang Forest Reserve. This research was done from March to April 2013 in Mount Masarang Forest Reserve, Tomohon City. Data was collected using multiple stage random sampling method. From 131 species plants in Mount Masarang Forest Reserve, found 7 species plants naturally eaten by Sulawesi crested black macaques, with varying population densities and role in the community. The species are Alstonia scholaris (5.944 individuals), Piper aduncum (5.225 individuals), Euodia minahassae (3.220 individuals), Trema orientalis (1.486 individuals), Koordersiodendron pinnatum (991 individuals), Caryota mitis (743 individuals) dan Dendrocnide microstigma (495 individuals). The highest distribution of food plants can be found on the eastern slopes, because 42% of the food plants on Mount Masarang Forest Reserve are found on these slopes.Keywords: Macaca nigra, Mount Masarang Forest Reserve, potential of natural food plants
DENSITAS TUMPARA (Tarsius tumpara) PADA HUTAN LINDUNG DAN HUTAN PRODUKSI DI PULAU SIAU SULAWESI UTARA Bryan M. Kuheba; Jhony S. Tasirin; Maria Y. M. A. Sumakud; Saroyo Sumarto
COCOS Vol. 6 No. 5 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i5.7573

Abstract

ABSTRACT The purpose of this study is to evaluate tumpara’s population and compare its density in each production forest and protected forests at Mount Tamata Siau Island. This study was conducted for one month in March 2014 at 7 plots in each forest type. Tumpara’s density and frequency was performed using sampling method and analized using descriptive statistics. Sightings density and frequency between production forests and protected forests then compared. Area description uses Importance Value Index (IVI). Correlation and simple regression analysis is used to see the relationship between vegetation and tumpara’s sightings frequency. Total basal area of the plots and shrub cover is used to evaluate tumpara’s sightings frequency. The results showed that the protected forest has tumpara density of 3.29 individuals/ha and 0.86 groups/ha while production forests has tumpara density of 2.14 individuals/ha and 0.47 groups/ha. Discovery frequency of tumpara in protected forest is 1.64 (0.02 to 3.26) times/day and the production forest has discovery frequency of 1.07 (0.21 to 1.93) times/day. There is a relation between vegetation cover and tumpara’s presence. The more area shrub covers, the higher tumpara population will be. Tumpara is more commonly seen in habitats dominated by Pandanus sp. Tumpara couldn’t be found in Myrstica fragrans dominated habitats.Keywords: Density, Sightings Frequency, Habitat, Tarsius tumpara, Siau Island
KARAKTERISTIK HABITAT DI SARANG TANGKASI (Tarsius Spectrumgurskyae) DI TAMAN HUTAN RAYA GUNUNG TUMPA H.V. WORANG, SULAWESI UTARA Sahdin Sapsuha; Johny S. Tasirin; Saroyo Sumarto
COCOS Vol. 13 No. 4 (2021): EDISI OKTOBER-DESEMBER 2021
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v5i5.35389

Abstract

ABSTRAK This study aims to determine th characteristics of the habitat in the nest of Tangkasi (Tarsius spectrumgurskyae) in the Gunung Tumpa Forest Park HV Worang. The research was carried out from October to November 2020. In collecting the tangkasi nest data, the observations were divided into three stages, namely: 1. Determination of nests. 2. Observation of nest characteristics and 3. Observation of the condition of the nest environment. This observation was carried out in the afternoon until the evening, namely at 16-30 - 18-30 and at dawn, namely at 04-30-06:00 WITA. The results of the study have obtained the location of the coordinates of the tangkasi nests as many as 8 nests spread over several types of land cover in the Tahura area of Gunung Tumpa HV Worang. The types of nest plants that make up Tarsius spectrumgurskyae are found in the Ficus and Arenga genera. The nest structure consists of cavities in the interweaving of roots and piles of interwoven fibers between the leaf midribs and found 1-6 individual tangkassi in each nest. Tangkasi nests are foundat an elevation of 462-574 m with a slope of 11% - 25%. Environmental conditions around the nest with light intensity 351.6 ± 39.71 lx, light percentage 19.9% ± 1.94%. The morning, afternoon and evening temperatures were 25.74ºC ± 0.42, 30.88 88C ± 0.47 and 25.79 C ± 0.35 with humidity in the morning, afternoon and evening 91.71% ± 2.54%, 77.48% ± 2.80% and 74.31% ± 19.4%. The vegetation of the nest habitat was dominated by Spathodea campanulata (INP 51.32%) for trees, Leucosyke capitellata (INP 27.99%) for poles and calamus sp. (INP 31.68%) for saplings. Keywords: Tangkasi, habitat characteristics, Tangkasi nest, Tahura Gunung Tumpa H.V Worang
Co-Authors Adelfia Papu Adelfia Papu Adelfia Papu Ahmadin Awal Lumente, Ahmadin Awal Ahril Hidayat Akbar Arafah Embo, Akbar Arafah Alotia, Jayens Alule, Melisa BEIVY JONATHAN KOLONDAM Bryan M. Kuheba Deidy Katili Deidy Katili Deidy Y Katili Deidy Y Katili Deidy Y. Katili Deidy Y. Katili Edwin de Queljoe Eka Yuningsih Eko Handoyo Fabiola B. Saroinsong Farha N.J Dapas Febby E.F Kandou Fernandez T. Upa Frangky J. Paat Glorio D. Pinaria Greis M. Sendow Hanny Pontororing Hengki D. Walangitan Herni E.I Simbala I Nyoman Gede Arya Astawa Indra Polii, Indra Indriati Sumarni Islamul Hadi Jauhar Arifin Jessy D.L. Warongan, Jessy D.L. Karim, Irwan Karmini Karmini Karyati Karyati Kiswanul Arifin Kunio Watanabe Lalu Wahyudi Langi, M A Lengkong, Johny P. Lisa Wati Lombogia, Stanly O.B. Luther Latumakulita Maabuat, Pience Maria Y.M.A. Sumakud Marnix L. D. Nangoy Marnix L. D. Nangoy Marnix L.D Langoy Marnix L.D. Langoy Marnix Langoy Martina A. Langi Max R.J. Runtuwene Muhammad Danton Noor Muhammad Hendriyani Mylton Mantouw Mylton Mantouw, Mylton Olly E.H. Laoh Orpa Smarce Fransina Manori Parluhutan Siahaan Parluhutan Siahaan Parluhutan Siahaan Pelle, Wilmy Pience V Maabuat Puasa, Marton Putri Sianipar Putri Tesalonika Rondonuwu Rahma Wati Rahmi Baihaki Rio Priyanto Saibi Rivo F. Rahasia Roni Koneri Rooije R.H. Rumende Rooije R.H. Rumende Rudy C Tarumingkeng Rumanasari, Ratih Dwi Rumanasen, Baren Rustamiya Rizki Adiati Sahdin Sapsuha Saibi, Rio P. Saibi, Rio Priyanto Saimima, Arie J. Sandy, Jhon I. Sandy, Jhon Ismail Sary D.E. Paturusi Sendy Rondonuwu, Sendy Seni Tongkukut Septiyana Lestari Shinta Avriyanti Sirait, Hasanuddin Siska Anggreani Siti Hatiah Sri Supraptini Mansjoer Sumual, Mercy M. Sunarmi Sunarmi Susan Marlein Mambu Syamsul Bachry Tangapo, Agustina Monalisa TARUNI SRI PRAWAST MIEN KAOMINI ANY ARYANI DEDY DURYADI SOLIHIN Taufik Rahman Tenda, Edwin Upa, Fernandez T.