cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kab. sleman,
Daerah istimewa yogyakarta
INDONESIA
Journal of Tropical Biodiversity and Biotechnology
Published by Universitas Gadjah Mada
ISSN : 25409573     EISSN : 25409581     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology
Journal of Tropical Biodiversity and Biotechnology (JTBB) is an authoritative source of information concerned with the advancement of tropical biology studies in the Southeast Asia Region. It publishes original scientific work related to a diverse range of fields in tropical biodiversity, functional biology, and biotechnology.
Arjuna Subject : -
Articles 10 Documents
 1 
Search results for , issue "Vol 5, No 2 (2020): August" : 10 Documents clear
Estimation of Above Ground Carbon Sequestration in Trembesi (Albizia saman) and Johar (Senna siamea) at PT Multi Harapan Utama, East Kalimantan Widya Fajariani; Medi Hendra; Dwi Susanto
Journal of Tropical Biodiversity and Biotechnology Vol 5, No 2 (2020): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.43381

Abstract

The open-pit mining method has a very large ecological impact. It causes the loss of forest vegetation which decreases CO2 absorption. Measuring the amount of carbon stored in plant biomass can represent the amount of CO2 that can be absorbed in the atmosphere. The objective of this research is to determine the carbon sequestration of Albizia saman and Senna siamea in different age classes at PT MHU Busang Jonggon Block, Kukar, East Kalimantan. Estimation of carbon sequestration in the stands of A. saman and S. siamea was carried out by non-destructive methods using biomass allometric equations while in understorey and litter using the destruction sampling. The results showed that the highest carbon absorption value of A. saman was 314.28 tons/ha which appear at six years old stands and the lowest value was 193.31 tons/ha at three years old stands while the highest carbon absorption value of S. siamea was 113.65 tons/ha which appear at nine years old stands and the lowest value was 24.64 tons/ha at three years old stands. A. saman could be more promising plant species than S. siamea according to its higher level of carbon sequestration and their high adaptation level. All data from this study could suggest several information for increasing carbon sequestration level in forest ecosystem as well as achieving forest rehabilitation purpose.
The Diversity of Ray-finned Fishes (Actinopterygii) in Plio-Pleistocene Java Donan Satria Yudha; Muhammad Ageng Prabowo; Rusyad Adi Suriyanto; Didit Hadi Barianto
Journal of Tropical Biodiversity and Biotechnology Vol 5, No 2 (2020): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.43694

Abstract

Java has been known in the world of Paleontology as a contributor to the findings of Homo erectus fossils, but there are still other fossil findings that have not been identified until now, especially fossil fishes of the subclass Actinopterygii. This research was conducted to recognize the diversity of the actinopterygians fishes in Plio-Pleistocene of Java and to determine the diagnostic characters of each taxon group of fossils in the Plio-Pleistocene of Java. The study was carried out using comparative anatomical methods with present-day specimens and fossil findings collection of the Laboratory of Bioanthropology and Paleoanthropology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada; Bandung Geological Museum and Sangiran Early Man Site. The research found at least 8 species of fish fossils in Java which belong to three order, i.e., the order Siluriformes with 5 identified species: Bagarius gigas, Hemibragus nemurus, Clarias macrocephalus, family Ariidae with indeterminate genus or species, Plotosus canius, Clarias batrachus, and family Pangasiidae with indeterminate genus or species; the order Perciformes with two identified species: Anabas testudineus and Sphyraena crassidens; and the order Cypriniformes with one identified species: Osteochilus vittatus. Based on the fossil findings showed that the Java Island during the Plio-Pleistocene used to be a marine environment that gradually ascending into a lowland river which closes to mangrove swamps and estuaries while the ancient Bandung lake site was a lacustrine environment with calm currents and is overgrown with riparian vegetation.
The Effectiveness of Red Spinach (Amaranthus tricolor L.) and Green Spinach (Amaranthus hybridus L.) Extracts for Bacillus thuringiensis var. kurstaki Protectant against UVB Radiation for the Control of Armyworm (Spodoptera litura Fab.) Siti Sumarmi; Mifta Arlinda; Sukirno Sukirno
Journal of Tropical Biodiversity and Biotechnology Vol 5, No 2 (2020): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.53004

Abstract

Spodoptera litura Fab. is an insect that damage cultivated plants in Indonesia. Efforts to control it can be done by using biological agents for example by using Bacillus thuringiensis kurstaki (Btk.). Unfortunately, the Btk. is easily degraded by UV radiation. This research aimed to study the effectiveness of red and green spinach as UVB protection for Btk. and to observe the pathogenicity of Btk. formulations against armyworm. Furthermore, the sublethal effect of Btk. against S. litura was investigated. The morphology of the endospore, protein crystal, and bacterium were observed under a contrast phase microscope. The extracts at 2% (w/v) were mixed with Btk. suspensions at 5 x 104, 5x105, and 5x106 (spores/ml), respectively. The formulations then exposed under Ultraviolet B (UVB) lights for 3, 6, and 9 hours then tested against the 3rd larval instar of armyworm. The larval mortality was observed daily and the analysis of variance was analyzed by one way anova. The sublethal effects of the treatment to the pupal and adult stages were observed when the moths emerge. The results showed that the larval mortality caused by  Btk. mixed with red spinach ranged from 11.7 to 26.7%. The sublethal effects of Btk. resulted in smaller sizes of pupae and imago, darker pupae, and wings abnormality of the adult stage, compared to any control treatment. The morphological observation of the bacteria showed that extracts gave UV protection against UVB. These results suggested that red and green spinach potentially can be used as a protectant for Btk. against UVB.
Induction of Microspore Embryogenesis of Eggplant (Solanum melongena L.) ‘Gelatik’ Devi Bunga Pagalla; Ari Indrianto; Maryani Maryani; Endang Semiarti
Journal of Tropical Biodiversity and Biotechnology Vol 5, No 2 (2020): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.53677

Abstract

The haploid or double haploid plant of eggplants could be produced from microspore culture (embryogenesis of microspores). In the breeding programs, microspore can be developed into an embryo directly after exposure to stress treatment during cultured. Stress (temperature and starvation medium) is an important factor in the induction of embryogenesis microspore. This study aims to induced embryogenic microspores from eggplant CV. Gelatik. The stage late-uninucleate microspore (Vacuolate Microspore/VM) and early binucleate (Young Bicellular Pollen/YBP) are the suitable stages to induce multinucleate structure. There are 3 methods used in this research; 1) Determination of the stage development of microspore based on flower buds length and anther length. 2) Induction of embryogenic microspore on the pre-treatment and starvation medium. 3) After giving pre-treatment for 4 days, micropores were transferred to culture medium A2 at 28oC in dark conditions to induce the multicellular structures. This study reported that 50-68.51% of the VM+YBP stage obtained in the range of flower bud lengths of 10-17 mm, and 5.0-6.9 mm, the range of anther length containing VM+YBP of 50-77.48%. The pre-treatment heat shock at 33oC in the medium B for 2 days,  produced embryogenic microspores with a high percentage, that is about 50.19%, while microspores at 25oC and 4oC respectively 46.17% and 49.28%. Pre-treatment for 4 days at 4 oC, 25 oC,  and 33oC with the percentage of embryogenic microspores apiece 32.87%, 27.45%, and 37.34%. The multicellular (starlike) structure begins forming on the fifth day of incubation in culture medium (A2) after pre-treatment in B medium at 33oC.
Physicochemical Characters of Mosquitoes Natural Breeding Habitats: First Record in High Dengue Hemorrhagic Fever Cases Area, East Java, Indonesia Rosmanida Rosmanida; Shifa Fauziyah; Adi Pranoto Pranoto
Journal of Tropical Biodiversity and Biotechnology Vol 5, No 2 (2020): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.53714

Abstract

This research aims to identify physicochemical characteristics in natural breeding habitats/ phytotelmata of dengue vector—including Aedes (Stegomyia) aegypti and Aedes (Stegomyia) albopictus. The research was conducted during rainy season and pre-dry season (from January to June 2017) in the region with the high cases of Dengue Hemorrhagic Fever (DHF). The entomological survey was carried out by stratified random sampling in urban and rural areas in order to find potential breeding habitats, every natural breeding habitats in sampling location were checked for the presence of Aedes larvae. Physicochemical characters that consist of temperature, turbidity, carbon dioxide, ammonia, nitrate, sulphate, pH and dissolved oxygen were recorded. Larval species were taken and then identifying activities were conducted in the Laboratory of Entomology. Data were analysed using the Chi-square test. Results showed that only dissolved oxygen that significantly associated with larval abundance (p=0.039). while others are not significantly associated. Whereas, other characters are associated with each other, carbon dioxide associated with the ammonia and sulphate (p=0.001; p=0.028). Turbidity associated with the dissolved oxygen (p=0.022) and pH associated with nitrate (p=0.001). 
Diversity of Epiphytic Orchids, Hoya, Dischidia and Phorophytes (Host Trees) in Bawean Island Nature Reserve and Wildlife Reserve, East Java, Indonesia Trimanto Trimanto; Setyawan Agung Danarto
Journal of Tropical Biodiversity and Biotechnology Vol 5, No 2 (2020): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.53795

Abstract

Bawean Island is a small island located between two islands (Java and Borneo). Geographically, the diversity of plants, especially epiphytic plants on this island is very interesting to be studied. This research aims to investigate the diversity of epiphytic plants, focussing on epiphytic orchids, Hoya and Dischidia in Bawean Island Nature Reserve and Wildlife Reserve. It was conducted through an inventory of epiphytic orchids and hoya growing on host trees. The results showed there were 10 species of epiphytic orchid and 3 species of epiphytic Hoya, and 1 species of Dischidia growing on-location studies. The epiphytic orchids which found in location studies included Phalaenopsis amabilis, Aerides odorata, Cymbidium aloifolium, Dendrobium anosmum, Rhynchostylis retusa, Liparis condylobulbon, Taeniophyllum biocellatum, Cymbidium sp., Eria sp. Orchid species that most often found in the study location was Phalaenopsis amabilis. In addition, this study recorded Taeniophyllum biocellatum as an endemic orchid from Java that was found on this island. The epiphytic Hoya recorded in there, i.e. Hoya diversifolia, H. verticillata, and H. amoena, and also only found 1 species of  Dischidia was Dischidia imbricata. There were 12 species of trees as the host trees of epiphytic, i.e. Irvingia malayana, Tectona grandis, Diospyros buxyfolius were the host trees frequently found as the host of the epiphytic plant. Zone 3 as an area of 1/3 basal part of a total length of the branches was the most preferred zone by epiphytic orchids and hoya. The epiphytic orchid and hoya hardly found in Zone 5.
The Plant Species Diversity of Lasitae Protected Nature Forest and Nearby Area, District of Barru, South Sulawesi Rismita Sari; Inggit Pudji Astuti; Ratna Susandarini; Irwan Makmur
Journal of Tropical Biodiversity and Biotechnology Vol 5, No 2 (2020): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.53830

Abstract

An expedition to Lasitae Protected Forest in District of Barru, South Sulawesi was undertaken to collect living plants for Pucak Botanic Garden, South Sulawesi. The aims were to investigate the diversity of the plants and as a dedication to the Expedition of the Republic of Indonesia Corridor Sulawesi. Using an explorative method, we collected the plants and recorded all data in the field following the tracks assisted by the field guide. A total of 179 collection-numbers have been collected from this dry lowland forest including the data for the local names. Many potential and valuable plants occur in the forest, 13 plants were highlighted in this paper for its conservation status, the potentiality for various purposes or its uniqueness: Diospyros celebica Bakh. or streak ebony (Ebenaceae), Arenga pinnata (Wurmb.) Merr. (Arecaceae), Phyllanthus lamprophyllus Mull.Arg. (Phyllanthaceae), Cycas rumphii Miq. (Cycadaceae), Lagerstroemia speciosa (L.) Pers. (Lythraceae), Garcinia celebica L. (Clusiaceae), Nervilia aragoana Gaud. (Orchidaceae), Phalaenopsis amabilis (L.) Blume (Orchidaceae), Ophioglossum reticulatum L. (Ophioglossaceae), Tetracera scandens (L.) Merr. (Dilleniaceae), Derris trifoliata Lour., Phytocrene bracteata Wall. (Icacinaceae), and Dioscorea hispida Dennst. Buchanania arborescens (Blume) Blume and Ardisia elliptica Thunb. can easily be found and widely spread.
Plants Flowering and Fruiting Behaviour in Alas Purwo National Park, Banyuwangi, East Java Dewi Ayu Lestari; Agung Sri Darmayanti
Journal of Tropical Biodiversity and Biotechnology Vol 5, No 2 (2020): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.54011

Abstract

Alas Purwo National Park (APNP) is a conservation area with lowland forest type. The adaptation of plants conserved is strongly influenced by environmental factors and the behaviour of flowering and fruiting. The aims of this research were to find the number, species, dominance, and abundance of flowering and fruiting plants, comparison of flowering and fruiting species, and environmental factors affecting the flowering and fruiting time in APNP observation tracks. This study used purposive random sampling in each observation track where flowering and fruiting plants were found. Environmental factors (temperature, humidity, light intensity, soil pH, elevation, and coordinates) in each observation track were measured. Data analysis was conducted using Microsoft Excel and PAST 4.0. statistic program. The behaviour of flowering and fruiting plants species in APNP was unique. There were 90 species of flowering and fruiting plants in APNP from 45 families. Most species often found flowering and fruiting were Orophea enneandra, Polyalthia littoralis and Leea angulata which were scattered in Moto Lele, Patirtan Mas, and Sadengan Savanna. Fruiting plants species were more often found than flowering ones. Temperature and light intensity became the two most affecting environmental factors on flowering and fruiting plants behaviour. The study of flowering and fruiting behaviour is very important for genetic resources conservation and conservation areas management.
[Retracted Article] Autecology of An Endemic Palm Pinanga arinasae J.R.Witono in Bali, Indonesia Rajif Iryadi; Sutomo Sutomo
Journal of Tropical Biodiversity and Biotechnology Vol 5, No 2 (2020): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.54650

Abstract

Nyabah, or Jabah (Pinanga arinasae J.R.Witono) is pinanga or palm which is endemic to Bali.  This study aimed to determine the distribution, abundance patterns, and habitat preferences of P. arinasae, and also its natural microclimate on Mount Pengelengan, Bali, on which the species occurred. Field observations were conducted using systematic sampling method. 20 x 20 m plots were made along a transect of forest path on the right and the left, with 100 m distance between plots. Results showed P. arinasae distribution in Mount Pengelengan grows clumped with different abundance in each plot. Microclimate observations (light intensity, humidity relative, and air temperature) each plot varies the effect on the distribution and abundance of P. arinasae. Light intensity is the main factor that regulates the abundance and distribution of P. arinasae and this species has the most abundant on the limited canopy cover area which has high the light intensity at 1319 lux. Autecological data is the first step in conservation efforts.Retraction Note. On 16 October 2020, the editorial team were made aware that similar dataset of this article had been published in Chapter III “Vegetation Ecology of Bedugul” page 29-53 of a book titled “Ecology of Bedugul Basin Bali” (ISBN: 978-979-8275-55-5), published by Seameo Biotrop in 2018. An investigation was held and side-by-side comparison showed that this article has 35.6% similarity with the book chapter including the data tables and several paragraphs of text. It is clear this article is a duplicate publication which is categorized as publication misconduct. Hence, this article is retracted and the authors are notified. 
Habitats Characteristic and the Resistance Status of Aedes sp. Larvae in the Endemic Areas of Dengue Haemorrhagic Fever in Sewon Subdistrict, Bantul Regency, Special Region of Yogyakarta Soenarwan Hery Poerwanto; Defriana Lutfi Chusnaifah; Giyantolin Giyantolin; Dila Hening Windyaraini
Journal of Tropical Biodiversity and Biotechnology Vol 5, No 2 (2020): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.55494

Abstract

Dengue Hemorrhagic Fever (DHF) is caused by Dengue Virus and transmitted by female Aedes mosquito which spread almost all over the world. Aedes sp. mosquito lives cosmopolitan and breeds in wet environments. Panggungharjo and Bangunharjo villages were categorized as endemic and non-endemic DHF areas, respectively. The aims of this research were to study the characteristics of Aedes sp. mosquito breeding sites, the identity of presence species found in the sites, and the resistance status of Aedes sp. mosquitoes against organophosphate insecticide. The method was using a larval survey which consists of 200 houses as respondents located in Panggungharjo and Bangunharjo villages. The larval resistance was tested by a biochemical method since resistance could be associated with esterase enzyme activity. The characteristics of mosquito breeding sites that found were open containers, filled with clear and calm water, dark and rough wall surfaces, the bottom surface was not directly in contact with the ground, the water temperature was 27-29 °C, pH 6.5-7, and not directly exposed to sunlight. There was only one species of mosquito was found, Aedes aegypti. The resistance test of Aedes sp. larvae showed that Aedes sp. larvae population from Panggungharjo village were susceptible, and Aedes sp. larvae from Bangunharjo village were in moderate resistant against organophosphate insecticide.

Page 1 of 1 | Total Record : 10

 1 

Filter by Year

2020 2020


Reset
Filter By Issues
All Issue Vol 8, No 3 (2023): In progress Vol 8, No 2 (2023): August Vol 8, No 1 (2023): April Vol 7, No 3 (2022): December Vol 7, No 2 (2022): August Vol 7, No 1 (2022): April Vol 6, No 3 (2021): December Vol 6, No 2 (2021): August Vol 6, No 1 (2021): April Vol 5, No 3 (2020): December Vol 5, No 2 (2020): August Vol 5, No 1 (2020): April Vol 4, No 3 (2019): Desember Vol 4, No 2 (2019): August Vol 4, No 1 (2019): April Vol 3, No 3 (2018): December Vol 3, No 2 (2018): August Vol 3, No 1 (2018): April Vol 2, No 2 (2017): December Vol 2, No 1 (2017): June Vol 1, No 2 (2016): December Vol 1, No 1 (2016): June More Issue