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All Journal Jurnal Silvikultur Tropika (JST) Jurnal Natur Indonesia Jurnal Online Mahasiswa (JOM) Bidang Pertanian Jurnal Biologi Universitas Andalas Jurnal Riau Biologia Jurnal Biologi Tropis Wahana Forestra: Jurnal Kehutanan JMM (Jurnal Masyarakat Mandiri) Ensiklopedia of Journal Jurnal Pembelajaran dan Biologi Nukleus Jurnal Hutan Tropika Unri Conference Series: Community Engagement ECOTONE Jurnal Zona Dinamika Lingkungan Indonesia Sagu CANANG: Jurnal Pengabdian Masyarakat Jurnal Ilmu-Ilmu Kehutanan Jurnal Pengabdian Masyarakat Bangsa Jurnal Senpling Multidisiplin Indonesia Jurnal Natur Indonesia
Defri Yoza
Departement Of Forestry, Faculty Of Agriculture, Riau University
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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SEBARAN DAN PERKIRAAN PRODUKSI PAKAN GAJAH SUMATERA (Elephas maximus sumatranus Temminck.) DI SEKITAR DURI KECAMATAN MANDAU KABUPATEN BENGKALIS Rahmad Fadillah; Defri Yoza; Evi Sribudiani
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Abstract

Sumatra’s Elephant (Elephas maximus sumatranus) including one of the endangered animals and is the largest animal is still alive and could only be encountered on the island of Sumatra. Form of elephant population dynamics influenced food availability, water availability and mineral salts. The results showed that the sign of Sumatra’s Elephant often encountered in the area of ​​plantations, secondary forests and shrubs. Estimates as many that 49 elephant dung and 2450 pellets with an area of ​​0.02 km² transect. Elephant population density as much as 0,966 head/0,02km2. Estimates of the total number of Sumatran Elephants using dung circumference measurement method (dung) Is estimated at about 20 head. Feed plants identified as many that 29 species of elephants consisting of 16 family. Plant seedlings elephants feed as many that 11 species and 18 herbaceous species. Plants that are found for levels of herbaceous Poaceae and Asteraceae tribe while the seedlings are found plants belonging to the family Myrtaceae, Moraceae, and Euphorbiaceae. Elephant feed production as much as 11,108 kg / ha. Elephant feed requirements with an approximate calculation of the number of elephants 0,48 head / ha requires feed 144 kg / ha. Keywords: elephant, location, population, feed.
IDENTIFIKASI DAERAH JELAJAH BERUK (Macaca nemestrina Linnaeus, 1766) MENGGUNAKAN APLIKASI SISTEM INFORMASI GEOGRAFIS DI KAWASAN HUTAN UNIVERSITAS RIAU Eka Surya Ahmadi; Yossi Oktorini; Defri Yoza
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Macaca nemestrina is one including appendix II containing list of endangered species. The research aims to understand home range to know daily behavior and mapping range of Macaca nemestrina in the area of Riau University forest and surrounding areas.  This research using a method of direct observation by way of follow, noticed as well as record every activity performed by groups of Macaca nemestrina. The determination of the regional daily range in overlay using software arcgis 10.1. Daily activity were analysed by counting average time daily activity and percentage number of daily activity fauna. Home range Macaca nemestrina were analysed using kernel density estimation (KDE) located on program Geospatial Modelling Environment (GME) and ArcGis 10.1. Home range outermost Macaca nemestrina were analysed by the method of Minimum Convex Polygon (MCP). The result showed that Macaca nemestrina in the area of Riau University forest having broad areas of 176.553 m². Maps of the home range  Macaca nemestrina having range regions core level very high density area of 7.916 m², high area of 11.344 m², mid 41.468 m², low area of 83.28 m² and level of density is very 32.542 m². The activity of Macaca nemestrina is eat, break, migrates, grooming and social interaction. The highest activity is break activity 36,68%, the lowest activity is grooming 4,10%. The percentage of eating 25,33%, social interaction 29,69% and devolve activity 4,20%. To scatter cruiser regions Macaca nemestrina in forest area of Riau University were on the point coordinates 101°22'44,565'BT–101°23'8,918'BT and 0°28'56,122'LU–0°28' 32,798'LU.Keywords: Macaca nemestrina L.,  Forest Areas, Daily Range, Home Range, Core Areas, Coordinate.
PENGHITUNGAN BIOMASSA DAN KARBON DI ATAS PERMUKAAN TANAH DI HUTAN LARANGAN ADAT RUMBIO KAB KAMPAR Nasib Tuah; Rudianda Sulaeman; Defri Yoza
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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Forests are natural resources that can absorb carbon dioxide (CO2) in the process of photosynthesis, and convert it into carbohydrates and store them into biomass. Prohibition of indigenous Rumbio forest areas is one area of forests managed by communities’ customary law, which is the existence of indigenous forest to gain recognition by the State which has the right to control all resources. In order, it needs to know how big the potential of carbon. The study aims to determine the potential of biomass and carbon on the ground in Indigenous of Rumbio Forest. Mechanical determination of the plot and data is done by Stratified Random Sampling, which is the method of taking the sample based on strata (levels). The potential of biomass on the ground biomass is done by summing the litter, nursery, lowers plants, saplings, poles and trees that use formula algometric. Biomass litter and plant seedlings under estimated by using the Indonesian National Standard. Carbon stored value is 0.47 of biomass. The results showed that the carbon potential in the area ofIndigenous of Forests  Rumbio forest is 31922.21 ton / ha.  Keywords: forest, forest customary prohibition, biomassa, carbon
KEANEKARAGAMAN JENIS MAMALIA DI HUTAN LARANGAN ADAT RUMBIO DESA RUMBIO KECAMATAN KAMPAR KABUPATEN KAMPAR PROVINSI RIAU Riri Syafni Marjuli; Defri Yoza; Tuti Arlita
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Abstract

Mammals is one of fauna who often have conflict with human and always made loss to both of them.Degradation can increase the possibility of the conflict. Prohibition forest of rumbio customary is one of forest had important mammals and no many data and information about the mammals. This research aimed to know species diversity and distribution of mammal in prohibition forest area of rumbio. This research done at December 2016. Mammals species diversity found 16 species from 10 families. Index species diversity of mammals in each region indicated that is Panoghan (H’=0.95), Sialang Layang (H’=1.64), Koto Naghao (H’=1.95) with mean 1.51. Species richness of mammals in panoghan (R1=3.22), Sialang Layang (R1=2.40), and Koto Kaghao (R1=2.56), and the mean is 2.72. Distribution of mammals at prohibition forest area of rumbio is random. Keywords: Mammals, biodiversity, prohibition forest area of rumbio
PERILAKU HARIAN ORANGUTAN (Pongo pygmaeus Linnaeus) DALAM KONSERVASI EX-SITU DI KEBUN BINATANG KASANG KULIM KECAMATAN SIAK HULU KABUPATEN KAMPAR RIAU Astriana Pujacita Suhandi; Defri Yoza; Tuti Arlita
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 2, No 1 (2015): Wisuda February 2015
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Orangutan is an endangered species. One of the efforts to prevent the extinction of the orangutan is the ex-situ’s conservation for example zoo. The purpose of this research to determine the daily behavior and the duration of activity of orangutan in habitat at ex-situ in Kasang Kulim’s Zoo and to know the difference of frequency daily activities of orangutan by age class. The research was conducted in the month of August-September 2014. The objects of this research are five orangutan. The research method was descriptive statistics. The type of this research is observation. Based on the research results, the daily behavior of orangutan at Zoo Kasang Kulim consists of: the behavior of eating, the behavior of moving, the behavior of resting, the behavior of social, the behavior of the play itself, and other behaviors (grooming and shitting). Total of activity time orangutans obtained during 25 days of observation is 14 876 minutes. The highest behavior shown in the behavior of the resting (10 216 minutes or 69% of total daily activity orangutan). The frequency of daily behavior based on age class with a long observation period of 10 hours every day. The frequency of the behavior of resting at age class of adults and adolescents the highest frequency are 67 times / day and 71 times / day, while the frequency of the behavior of moving at baby age class the highest frequency that is 116 times / day. Keywords: Daily Behavior, Orangutan, Ex-situ’s Conservation
ANALISIS BIAYA DAN MANFAAT EKOWISATA TAMAN EDEN 100 KECAMATAN LUMBAN JULU KABUPATEN TOBA SAMOSIR PROVINSI SUMATERA UTARA Valvi Anita Sinaga; Defri Yoza; Tuti Arlita
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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Abstract

The existence of the Garden of Eden 100 ecotourism in producing tour benefits intended to achieve an advantage that the management of ecotourism can be done sustainability. In order to the condition of the ownership status of the Garden of Eden 100 held by individual who never made the calculation of costs incurred that are economically not known fee for management of these areas. For that we need to do an analysis of the cost and the benefit of ecotourism Garden of Eden 100.The aimed of this research is to determine the cost of issued, the economical benefit and the advisability of ecotourism business. The results of the research showed that total cost of issued in the  management of ecotourism Garden of Eden 100  in the amount of Rp. 240.740.000,00/year, while total economical benefit from ecotourism in the amount of Rp. 381.670.000,00/year, so that from the benefit it can get advantage in the amount of Rp. 140.930.000,00/year. Analysis of R/C ratio indicates that an ecotourism business deserve economically with a value 1.59.Keywords :ecotourism,ecotourism business, analysis of cost and benefit,the R/C ratio
IDENTIFIKASI FAKTOR-FAKTOR PENYEBAB DAN PENCEGAHAN KEBAKARAN HUTAN DAN LAHAN GAMBUT DI KECAMATAN KEMPAS KABUPATEN INDRAGIRI HILIR Tri Wahyudi Muslim; Defri Yoza; Yossi Oktorini
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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This research aims to identify the causes and ways of prevention of forest fires and peat in Kempas district Indragiri Hilir Regency based on public perception. This research is a descriptive research. Technique of collecting data of this research are observation, direct interview and questionnaireSampling in this research usingpurposive sampling dan quoted sampling methods.Results of the study of the causes of forest fires and peat that is inKempas district Indragiri Hilir regency based on public perception. The intentional factors are: land clearing by communities and companies by way of burning, conversion of agricultural land to plantation land by burning and land conflicts between communities and companies. Factor of human laxare : burning of plantation waste done by society and negligence of human that cause sparks such as throwing cigarette butts carelessly. The technique the prevention of forest fires and land in Kempas district Indragiri Hilir Regency, based on public perception and knowledge society that is: implement socialization by periodic both directly and indirectly, implementcounselling to the community, the rule of law in a fair and firm for the arsonists, implement the cooperation between all sides of the community, Government and corporate training, implement the opening of the land without burning to the community, the establishment of community groups concerned the joint patrols, fire and Implement of land registration and community land use.Keyword : The cause of fire, The prevention of fire, peatland and forest, Kempas district.
KEANEKARAGAMAN SPESIES TUMBUHAN PADA PARAK AGROFORESTRI PARAK DI NAGARI BUKIK LIMBUKU KECAMATAN HARAU KABUPATEN LIMA PULUH KOTA PROVINSI SUMATERA BARAT Merry Syafrida; Defri Yoza; M. Mardhiansyah M. Mardhiansyah
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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ABSTRACTThe objective of the research is to know the composition and diversity level at Parak forestry, as now a days Parak decreases in number of growth so it must be developed by agroforestry, Nagari Bukik Limbuk is a place that conducts its kind of development. The technique of sampling is systematic sampling with random start. The result of the research showed the level of diversity at Parak Cocoa is 3.05 by the number of sampel about 1556 and total number is 52 species, if it vigure out per level, trees, saplings, seedlings and understorey it has the number of level at the middle, than low level for the pole. Parak Cocoa used random pattern and durian also avocado becomes the share for cocoa, cocoa found 77 numbers. Parak corn has the level of diversity at the middle, 2.48. The highest number at the seedling and understorey is 2.37, it is also mid level. then at the level of trees and poles classified as middle, and at the level of saplings classified as low. The pattern used is fence pattern, the plants for the fence are coconut, cacao and avocado. The number of plants at Parak Jagung is 1367 and the highest number is corn about 450. The both of Parak combined agrosilvopastura by the discovery of fish pool at the Parak cocoa, and also goat and cow at the Parak corn. Keyword: Diversity, Agroforestry, Parak, Vegetation Analysis  
POTENSI DAN DAYA DUKUNG KAWASAN EKOWISATA HUTAN MANGROVE BANDAR BAKAU DUMAI Rizky Budi Susanto; Defri Yoza; Tuti Arlita
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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Tourism is a potential sector that being developed in the city of Dumai. Mangrove forest Bandar Bakau Dumai  has a potential to be developed into ecotourism because it has a rich flora and fauna diversity that characterized by many of visitors in these area. Many of visitors in these area fearful could damage the mangrove forest. The aim of these research were to determine the potential of flora mangrove and fauna diversity that can be developed as an ecotourism attraction and analyze the carrying capacity in ecotourism track of mangrove forest Bandar Bakau Dumai. These research was conducted in ecotourism track of mangrove forest Bandar Bakau Dumai used survey method, study literature and interview. The results of these research showed that potential in the form of 14 mangrove species of flora and fauna in the form of 7 species of animals that includes high potential for the development of ecotourism with that value of the carrying capacity was 149  visitors/day.Keywords:   Ecotourism, Potential, Flora, Fauna, Carrying Capacity, Mangrove Forest,   Bandar Bakau Dumai
KEANEKARAGAMAN JENIS TUMBUHAN OBAT DI HUTAN ADAT RIMBO TUJUH DANAU DESA BULUH CINA KABUPATEN KAMPAR PROVINSI RIAU Stevi Istiqfar; Defri Yoza; Rudianda Sulaeman
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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The purpose of this research is to know about type of composition and diversity of medicinal plants in Customary Forest of Rimbo Tujuh Danau at Buluh Cina village. This research using methods purposive sampling. Data analysis using the Important Value Index (IVI) and Shannon Wiener diversity index (H’). The results showed that there were 38 types of 26 family composition type was found in Customary Forest of Rimbo Tujuh Danau. Vegetation type that have potentially as medicinal plants are 16 types of 13 family. The value of species diversity on tree level is 1,90, the poles is 1,00, the sapling is 1,00, the seedling and plants is 1,63 which the figures is indicated that the diversity of medicinal plants in Customary Forest of Rimbo Tujuh Danau have good worth with the value is 1≤H’<3. Keywords:Medicinal plants, Typeof composition, Species diversity,Customary Forest of Rimbo Tujuh Danau
Co-Authors ', Bustami ', Rosmimi , MISNA Ade Ilham Ade Ilham Adelia Hayati Ananta Adelia Hayati Ananta Adi Saputra Affhart Chata Agus Hikmat Agus Sutikno Agus Sutikno Ahmad Baiquni Ahmad Baiquni Rangkuti Akhmad Rafdi Azhimi Al-Reza, Dimaz Danang Aldi Ardiansyah Putra Alpian Munandar Alpino Alpino Alpino Amela Nainggolan, Dewi Sri Ananda, Taufik Anastasia hutasoit Angraini, Riris Ano Riyadi Ano Riyadi Aprian, Aprian Ardiansyah Ardiansyah Arie Febriyan Rianto Aripan Yunas Arta Pansiska T Arya Arismaya Metananda Arya Arismaya Metananda Arya Arismaya Metananda Aryodamar Muhammad Jati Asprizatul Azlan Asri Gumilar Asri Gumilar Astriana Pujacita Suhandi Atika Azharo Atmansyah, Atmansyah Bayu Dewanto Bayu Suhendra Br Brahmana1, DwiDamiaty BrahmiPutri Bucika Parta Gezali Budi Azwar Budi Helianto Budiani, Evi Sri Budiani, Evi Sri Bustami &#039; Darli, Viny Volcherina Darwan Suganda Darwan Suganda Darwis Gidion Deddy Samuel Defrizal Defrizal Dewi Sri Amela Nainggolan Dewi Sriyanti Dian Marliana Dimas Nugraha Pamungkas Dina Rina Rosinta Dolly Kuswara Harahap Dwi Seprina DwiDamiaty BrahmiPutri Br Brahmana1 Efendi, Meizar Efriyeldi, Efriyeldi Eka Surya Ahmadi Elfana, Risa Elfiandri Elfiandri Eni Rita Rosady Erpino Erpino Erpino Ervizal AM Zuhud Evi Sri Budiani Evi Sribudiani Fakhdian Setiawan Fanda Asnita Yusefa Ambarita Fanny Kusuma Akmal Farib Hamdani Febriyanti, Fani Fernando, Git Fifi Puspita Gaol, Sori B M Lumban Gilda Pudikasari Gusmita Sari Gusnaini, Nurmutia Halawa, Ernawati Kristina Hamidi, M. Rasyid Hamka Sari Budiman Hanifah Ikhsani Hardi Yuda Haris Gunawan Harnuda, Muhammad Rafi Hasanah, Hafiz Husni Thamrin Ichwan, Fadli Ika Gussuwana Ika Gussuwana, Ika Ika Lestari, Ika Ika Purnama Ilen Purnama Sari Ilyas, Engki Indah Sulistyo Ningrum, Indah Sulistyo Indrayati &#039; Irham, Wirdayati Ismenni Banjar Nahor, Ismenni Banjar Ita Yulia Jheni Astuti, Jheni Kausar &#039; Kesi Elisabeth Silvania Siregar Kevin Natama Pardede Khairul Anwar KHAIRUL ANWAR khairul anwar Khalid Afif Khikmanisa, Tiwi Kukuh Kurniawan Lamsari Efrida Gulo, Lamsari Efrida Lestari, Antisa Tria Lisman, Aprizal Luh Putu Ratna Sundari M. Mardhiansya &#039; Mandala Yohannes Saputra Mandala Yohannes Saputra Manullang, Kristian H Masitah &#039; Masruri, Niskan Masruri, Niskan Walid Meizar Efendi Meriza Melyana, Meriza Merry Syafrida Metananda, Arya Arismaya Mhd. saputra pane Miranti Putri R.G Morista Latersia Tarigan Morista Latersia Tarigan Muhamad Fadly Muhammad Khaerul Anwar Muhammad Mardhiansyah Muhammad Rivai Muhammad Rudy Hidayat Muhammad Rudy Hidayat Muhammad Vikko Alshar Mukhamadun, Mukhamadun Mukhtar, Ade Mulya Rolina Mulya Rolina Munzil Azim Muthia Zilyani Putri Nasib Tuah Nino Vembrianto Niskan Walid Masruri Nofri Sandria Nur Fitriana Nur Fitriana Nur Suhada, Nur Nurhaliza Nurlistiani Fitrianingsih Nursaila &#039; Nursal Nursal Nurul Qomar Nurul Qomar Nuryasin &#039; Ofrinaldi &#039; Pangestu, Wibowo Pardede, Kevin Natama Pebriandi, Pebriandi Perkasa, Wahyu Andi Pretti Sepsi Nola Putra, Ade Eka Putra, Ezza Islami Putriani, Chirin Ni’mah Rahlem, Dedek Rahmad Dani Rahmad Fadillah Raja Febrianto Rangkuti, Ahmad Baiquni Rangkuti, Rangkuti Rendra Mai Rizal Ridho Affan Mustayyib Ridwan Manda Putra Ridwan Manda Putra Rifda Ningsih Rika Kurniawan Rinta Hermiza Ningsih Riri Syafni Marjuli Riyan Sumitran Rizky Budi Susanto RONNY, ABDUL Rosita Marito Hasugian Rosmimi &#039; Rostika, Lina Rudianda Sulaeman Rudianda Sulaeman Rudianda Sulaeman Rudianda Sulaeman Sabaruddin Sabaruddin Sakinah Lubis Sami Rafles Handika Seprina, Dwi Septian Hardi Yanto Shobby, Afiyah Sholihin, Khoirul Sinaga, Ave Nova Sofan Sofiyanto Somadona, Sonia Sori B M Lumban Gaol Sri Catur Setyawatiningsih Sriyanti, Dewi Stevi Istiqfar Sugi Ari Wardana Suhardianto, Suhardianto Susi Marlina Sutami Sutami Sutami Syafathisca Syafathisca SYAPUTRA, ARI Syukri, Zulhusni Tasman Adi Teddy Noor Hidayat Teguh Imanto Tengku Muhammad Ulul Azmi Tiara Septa Yunanda Tika Zulkarnain Tri Wahyudi Muslim Tuti Arlita Uci Oktavia Ulul Azmi, Tengku Muhammad Umum Juwanto Umum Juwanto Valvi Anita Sinaga Vini Volcherina Darlis Viny Volcerina Darlis Viny Volcherina Volcerina Darlis, Viny Volcherina, Viny Wan Muhammad Yunus, Wan Muhammad Wardati Wardati . Wendy Fitrah Widia Safitri Wienda Lestari Br. Gurusinga Wirdayati Irham Wishnu Sukmantoro Yelfi Dwi Ningsih Yetti Elfina Yoga Yudhatama Yossi Oktorini Yusni Ikhwan Siregar