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INDONESIA
JURNAL BIOLOGI INDONESIA
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : 08544425     EISSN : 2338834X     DOI : -
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 847 Documents
 33   34   35   36   37 
Fauna Tungau Macrochelidae (Mesostigmata: Acari) dan Asosiasinya dengan Kumbang Kotoran di Gunung Sawal, Ciamis, Jawa Barat Hartini, Sri
JURNAL BIOLOGI INDONESIA Vol 10, No 1 (2014): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (591.472 KB) | DOI: 10.14203/jbi.v10i1.333

Abstract

Study of macrochelid mite: Mesostigmata: Acari has been done in Mt. Sawal Nature Reserve, Ciamis, West Java.Three genera, eight species of family Macrochelidae collected associated with scarabaeid dung beetles. Genera ofmites i.e., Holostaspella (H. oblonga Hartini & Takaku, 2010), Neopodocinum [N. bosschai (Berlese, 1901) and N.subjaspersi Hartini & Takaku, 2003] and Macrocheles [M. dispar (Berles, 1910)]; M. jabarensis Hartini & Takaku,2003; M. kraepelini (Berlese, 1905); M. pumilus Hartini, Dwibadra & Takaku, 2009 and M. sukabumiensis Hartini& Takaku, 2003]. Scarabaeid dung beetles assosiated with macrochelid mite reported three genera and 10 species,i.e., Catharsius, Copris and Onthophagus. The high value of niche overlap of two dung beetles O. (O.) orientalis andO. (O.) javaecola (96,97%) shows that the two beetle species are able to serve almost equally as transportation modefor the same species of macrochelid mites.Keywords: Macrochelid mite, Mt. Sawal, dung beetles
Analisa Vegetasi Hutan Pegunungan di Taman Nasional Gunung Ciremai, Majalengka, Jawa Barat Purwaningsih, Purwaningsih; Yusuf, Razali
JURNAL BIOLOGI INDONESIA Vol 4, No 5 (2008): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v4i5.3221

Abstract

ABSTRACTThe Mountain Rain Forest Vegetation Analysis in Ciremai Mountain NationalPark, Majalengka, West Jawa. Vegetation study on some different altitude in CiremaiMountain National Park has been carried out with a quadrat methode. Ten plots were setup in altitude at 1600– 2050 m. The results of a floristic inventory of 1.2 hectare sampledplot show that there were 57 species of 42 genera in 28 families, represented by 1069individuals. The two leading families in terms of number of species were Euphorbiaceaeand Fagaceae while according to the most prominent species were Engelhardia spicata(Juglandaceae). There are differences of both zonation and altitudinal forest disturbance.The zone of 1600–1700 m asl. dominated by secondary species such as Saurauia nudiflora,Glochidion arborescens, Glochidion rubrum, Ficus fistulosa, Vernonia arborea andVillebrunea rubescens. In altitude of >1900 m asl. dominated by primary species such asMacropanax dispermum, Astronia spectabilis, Turpinia spaerocarpa, Elaeocarpus oxypyrenand Syzygium laxiflorum. The forest structure could be seen by diameter and heightstem classes distribution. Although the most of trees are small in size, but there havebeen still some largest trees were Engelhardia spicata, Turpinia sphaerocarpa and Astroniaspectabilis.Key words: West Java, Ciremai Mountain National Park, forest zonation, structure and speciescomposition
Uji Bakteri Simbiotik dan Nonsimbiotik Pelarutan Ca vs. P dan Efek Inokulasi Bakteri pada Anakan Turi (Sesbania grandiflora L. Pers.) Widawati, Sri
JURNAL BIOLOGI INDONESIA Vol 11, No 2 (2015): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1272.297 KB) | DOI: 10.14203/jbi.v11i2.2204

Abstract

ABSTRACTNitrogen-fixing bacteria that dissolve phosphate and produce IAA (plant growth hormones) are useful for biological organic fertilizer (BOF). Thirty nitrogen-fixing isolates have been isolated from the rhizosphere soil on Mount Salak, Bogor. This study aims to find nitrogen-fixing symbiotic and non-symbiotic bacteria that could potentially dissolve phosphorus (P) and produce hormones IAA. The N-fixing bacteria were tested to promote growth of turi (Sesbania grandiflora) during  seedling. Turi is called astringency tree, because the entire tree is useful for land reclamation, produce tannin, gum, resin, vegetables, medicine, tonic, antipyretic, and as pulp material. Pikovskaya medium was used to evaluate the ability of nitrogen-fixing bacteria to dissolve phosphate. The effect of bacteria on the growth of seedlings Sesbania grandiflora were evaluated using pot experiment. Pot contained sterile sand were arranged as factorial with 3 replications and watered with sterile distilled water containing Muller solution in the green house. The results showed that, the highest populations of bacteria, P solubilization index, and PMEase produced by Rhizobium, Azotobacter and Azospirillum were isolated from the rhizosphere of tea plant. The isolates were identified as Azotobacter chrococcum and Azospirillum lipoferum and Rhizobium sp. All of the isolates produced plant growth hormon (IAA). Effects of inoculants ABC (Azospirillum, Azotobacter, Rhizobium 1), ABD (Azospirillum, Azotobacter, Rhizobium 2), BCD (Azotobacter, Rhizobium 1, Rhizobium 2), dan ABCD (Azospirillum, Azotobacter, Rhizobium 1, Rhizobium 2), were very good on growth of Turi plant seedlings. All isolates formed root nodules, except the ABD and D isolats. Keywords: Nitrogen fixing bacteria, Phosphate solubilizing bacteria, Sesbania grandiflora L.Pers. 
Struktur dan Komposisi Vegetasi Hutan Semusim Habitat Curik Bali (Leucopsar rothschildi Stresemann, 1912) di Kawasan Labuan Lalang, Taman Nasional Bali Barat Roemantyo, Roemantyo
JURNAL BIOLOGI INDONESIA Vol 7, No 2 (2011): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (399.644 KB) | DOI: 10.14203/jbi.v7i2.3121

Abstract

ABSTRACTVegetation structure and composition of Bali Starling (Leucopsar rothschildi Stresemann,1912) Habitat at Labuan Lalang monsoon forest, Bali Barat National Park. Research wasconducted in Labuan Lalang monsoon forest, Bali Barat National Park in May 2010 to identifytheir vegetation structure and composition of plant species communities in this area. Thisinformation was important as basic data for developing model for habitat reconstruction ofendemic Bali starling birds (Leucopsar rothschildi Stresemann 1912). Several ecologicalparameters information such as name species, frequency, density and abundance of individualspecies were collected for qualitative an quantitative analyses.The result showed that 93 species belonging 84 genera and 37 families were found in this area.Some plant species were recorded as endangered such as Strycnos lingustrina, Helicteresixora, Protium javanicum, Rauvolfia serpentina, Zanthoxylum rhetza, Ziziphus rotundifolia,Ceriops tagal, Flacourtia indica, and Santalum album. The important species that composedin this forest were dominated by Grewia ericocarpa , Schoutennia ovata (Tiliaceae) andfollowed by Vitex trifoliata and Abutilon indicum. The species diversity and evenness indexof Shannon-Wiener indicated that species diversity in this forest were not too high and thepopulations on unstable condition. Principal Coordinat Analyses (PCO) on the tree height andaltitude data of every tress showed that tree species associated to Bali starling were found onthe 10 – 25 m tree hiehgt community and occupied in the area of 40 – 60 m asl. The problems andreal condition of the area as the habitat of Bali starling were discussed in this paper.Key words: vegetation, species diversity, Bali starling, Bali Barat National Park
Keanekaragaman Jenis Ikan Di Suaq Balimbing dan Ketambe, Taman Nasional Gunung Leuser, Provinsi Nanggroe Aceh Darussalam Hadiaty, Renny K.
JURNAL BIOLOGI INDONESIA Vol 3, No 9 (2005): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v3i9.3281

Abstract

ABSTRACTThe Biodiversity of Fish In Squaq Balimbing and Ketambe Gunung Leuser NationalPark, Sumatera. Gunung Leuser National Park (GLNP) is one of the biggest national park inIndonesia which is the habitat of various flora-fauna. GLNP is a conservation area inSumatera island that lies in the two province, North Sumatera Province and Nanggroe AcehDarussalam Province. Little has reported about fishes inhabiting inland waters of Acehprovince and Sumatera Utara province, because The Fisheries Service of both province andThe University of Syah Kuala and The University of Sumatera Utara are more interested inconducting research on marine fish.Ichthyofauna research was conducted at the two Research Stations of Gunung LeuserNational Park, i.e Suaq Balimbing and Ketambe Research Station. Research activity at Suaq- Balimbing RS which is located in South Aceh Regency was conducted in 1997, whileresearch activity in Ketambe RS which is located in South East Aceh Regency was conductedin 1998. The research activity successfully collected 64 fish species which is belong to 36familia. There were two endemik species, one of them was protected species, six species wereundescribe ones and has described as new species, besides of those there are several specieswhich are assummed as undescribe species and still being examined.Keywords : Fish, biodiversity, Gunung Leuser National Park, endemic, protected, newspecies
Pemetaan Kawasan, Komposisi dan Struktur Mangrove Sebagai Dasar Pengelolaan Suberdaya Ikan di Teluk Cempi, Sumbawa Nastiti, Adriani Sri; Ridwan, Muhamad; P. Utaminingrum, Hetty Irawati; Putri, Masayu Rahmia Anwar
JURNAL BIOLOGI INDONESIA Vol 11, No 1 (2015): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v11i1.2164

Abstract

Scientific information about the composistionand structures of mangrove community and zonation patterns, became a basic data to support further fisheries research and development. As one of the reference for Dompu government policy on the fisheries recovery plan in Cempi bay data and information of mangrove in this area were very important. The study was conducted at Cempi bayon the year 2011-2012 by exploration the area nearby research station. The results showed that the mangrove forest has already been heavy disturbed and degraded. The mangrove forest at Mbawi only which has a high density and  good crown coverage. The mangrove species grown in these areas were belonging to the family Rhizophoraceae and Aviciniaceae. The presences of mangrove spesies were supported by environmental factors, such as muddy sandysubstrats and extreme deferences of salinity (3-36o/oo). Recovery of mangrove forest was important to be conducted in order to support the catch shrimp productivity in bay of Cempi. Key Words : Mapping, Composition,  Mangrove, Management of Fish Resources, Cempi Gulf 
Perubahan Tutupan Hutan Mangrove di Pantai Timur Sumatera Utara Periode 1977-2006 Onrizal, Onrizal
JURNAL BIOLOGI INDONESIA Vol 6, No 2 (2010): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v6i2.3154

Abstract

ABSTRACTLand-cover change of mangrove forests at eastern coast of North Sumatra in Period 1977 to2006. Mangrove is one of the world’s threatened major tropical environments. Nevertheless,activities that contribute to this depletion continue. The main objectives of this research wereto analyze the land cover change of mangrove forests in eastern coastal of North Sumatrabased on previous inventory in period 1997 to 2006 and to acquire the factors of mangrovedisturbance in the areas. In fact, mangrove forest areas in eastern coastal of North Sumatradecreased 59.68% from 103,425 ha in 1977 to 41,700 ha in year 2006. Expansion of aquacultureponds and extraction of timber and fuel wood were most important factors of mangrove forestdegradation in the areas. Therefore, we need to rehabilitate the degraded mangrove forests inthe area both massively and systematically, and to prevent the remaining mangrove forestsfrom destruction activities.Keywords: mangroves, land-cover change, North Sumatra
Hutan Mangrove di Kalitoko, Teluk Mayalibit, Pulau Waigeo, Kabupaten Raja Ampat, Propinsi Papua Barat Suhardjono, Suhardjono
JURNAL BIOLOGI INDONESIA Vol 9, No 1 (2013): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v9i1.141

Abstract

Penelitian vegetasi mangrove telah dilakukan di Kalitoko, Mayalibit Bay, Pulau Waigeo, Kabupaten Raja Ampat,Papua Barat Provinsi. Hasil penelitian menunjukkan bahwa keragaman mangrove di Kalitoko relatif tinggi.Ditemukan 65 jenis mangrove (56 marga dan 35 suku), ternyata 21 jenis diantaranya dimasukkan sebagai jenislangka berdasarkan daftar IUCN dengan status rawan (VU) dan kritis (CR). Hasil analisis vegetasi satu transekdengan luas 4.500 m2 di hutan mangrove Kalitoko tercatat 18 jenis tumbuhan mangrove dengan tingkatkepadatan pohon sebesar 549 individu / ha dan basal areanya 18.61 m2/ha. Untuk tingkat belta kepadatan mencapai1.514 individu / ha dan basal areanya 3,86 m2/ha. Sedangkan kerapatan semai mencapai 194.889 individu /ha.Kata Kunci: Mangrov, komposisi, Mayalibit, Waigeo, Raja Ampat
Biodegradasi Alkil Benzena Sulfonat oleh Psedomonas cepacia Sudiana, I Made
JURNAL BIOLOGI INDONESIA Vol 3, No 3 (2002): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (217.629 KB) | DOI: 10.14203/jbi.v3i3.3469

Abstract

ABSTRACTAlkyl Benzene Sulfonate Biodegradation of Psedomonas cepacia. Alkyl Benzene Sulfonate (ABS), naturally slow biodegradable substances, and toxic to human, animal and microorganisms, is a focus of environmental studies. Microorganisms appeared to play important role on biodegradation of that substances in nature, and wastewater treatment procesess. S2 isolated from detergent contaminated soil was able to grow in media with ABS as the sole carbon source. ABS degradation took place under aerobic condition, at pH 4, temperature 30ºC with ?max of 0.0591-h, Ks = 3.25 mg/L, Vmax = 0.16 mg/L.hours-1, and Km = 14.52 mg/L. Analyses of 16s rDNA revealed that S2 is belonging to Pseudomonas cepacia.Key words: Alkyl Benzene Sulfononate (ABS), Pseudomonas cepacia, detergent
Nest Stuctures in Bornean Orangutan Prasetyo, Didik; Utami, Sri Suci; Suprijatna, Jatna
JURNAL BIOLOGI INDONESIA Vol 8, No 2 (2012): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v8i2.3042

Abstract

Struktur Sarang Orangutan Kalimantan. Nest-building techniques processes related partiesin choosing the trees, the basic building structure, making layers, and adding nest lockingsystem with accessories. There are Lacks of data about the pattern of the orangutan nest andonly van Schaik (1995) described four Variations of nest structure. By Following 22 orangutanswith instantaneous focal animal method, 19 vertical nest structures are found, and horizontallyvariations orangutan nest forming butterfly pattern. Tree species are Elaocarpus mastersiithat mostly used by Orangutan to build nest with type of branch direction and height of firstbranch as the Reasons. Nest was built in 5-9 meters height and they were seldom to rebuilt orreuse old nest. They seldom to develop their nest in the last fruit trees to avoid nightpredators.Kata Kunci: Orangutan, Struktur dan pola, sarang.

Page 35 of 85 | Total Record : 847

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