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BIOTROPIA - The Southeast Asian Journal of Tropical Biology
Published by Southeast Asian Regional Centre for Tropical Biology
ISSN : 02156334     EISSN : 1907770X     DOI : http://dx.doi.org/10.11598/btb
Core Subject : Health, Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Veterinary
BIOTROPIA, The Southeast Asian Journal of Tropical Biology, is a scientific publication of the Southeast Asian Ministers of Education Organization (SEAMEO) – Southeast Asian Regional Center for Tropical Biology (BIOTROP). It publishes articles in the broad areas of tropical ecosystems and environmental impacts, biodiversity conservation and sustainable development and biotechnology.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 6 Documents
 1 
Search results for , issue "Vol. 18 No. 2 (2011)" : 6 Documents clear
CONTRASTING ARBOREAL AND TERRESTRIAL BRYOPHYTES COMMUNITIES OF THE MOUNT HALIMUN SALAK NATIONAL PARK, WEST JAVA NUNIK S. ARIYANTI; SULISTIJORINI SULISTIJORINI
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 18 No. 2 (2011)
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (102.185 KB) | DOI: 10.11598/btb.2011.18.2.243

Abstract

Bryophyte communities were compared between arboreal (trunk bases) and terrestrialhabitats in primary forest Mount Halimun Salak National Park, West Java. The communitieswere analyzed based on species diversity, abundance, and biomass. A total of 150 bryophytesspecies were identified, including 67 species of mosses (Bryopsida) and 83 of liverworts(Hepaticopsida). Both bryophyte groups varied in diversity and abundance between arborealand terrestrial communities as well as among different elevations. Species diversity of arborealhabitats (116 species)was higher than that of terrestrial habitats (64 species). Moss speciesweremore abundant in terms of coverage in terrestrial habitats whereas liverworts species weremore abundant in arboreal habitats. Species richness in both terrestrial and arboreal habitatsdecreased towards higher elevation, whereas the abundance increased.
OCCURRENCE OF ARBOREAL-CLIMBING GRAPSIDS AND OTHER BRACHYURANS IN TWO MANGROVE AREAS OF SOUTHERN LUZON, PHILIPPINES JIMMY Tevar MASAGCA
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 18 No. 2 (2011)
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (186.713 KB) | DOI: 10.11598/btb.2011.18.2.242

Abstract

     Despite the obvious importance to ecosystem functioning, the most prominent groups belonging to the Grapsidae are generally regarded as less studied in the Philippines. In this study, the occurrence of arboreal-climbing grapsids and other brachyurans associated with the mangals of Quezon and Catanduanes was considered including some aspects on climbing, burrowing and feeding behaviour of selected grapsids represented by Hemigrapsus, Pseudograpsus and Metopograpsus.  The non-grapsoid taxa are represented by Varunidae (Ptychognathus),   Portunidae (Charybdis, Portunus, Scylla, Thalamita); and Eriphiidae (Epixanthus). Metopograpsus latifrons (White, 1847) [Grapsus] is an exclusive mangrove tree climber (EMTC), while Pseudograpsus elongatus (A. Milne Edwards, 1873) is described here as occasional mangrove tree climber (OMTC). Hemigrapsus (Hemigrapsus) penicillatus (De Haan, 1835) [Grapsus (Eriocheir)] is a non-mangrove arboreal–climbing species (NTC) only seen on crevices of the mangrove areas. P. elongatus creates burrows most often than M.  latifrons. Likewise, the study provides information on the presence of the portunid orange mud crab (Scylla olivacea); the green mud crab (S. paramamosain); the varunid (Ptychognathus altimana); and extremely abundant xanthiid crab, Epixanthus dentatus in the mangroves of Catanduanes but not in Pagbilao, Quezon.  
THE OCCURRENCE OF INSECTS AND FUNGI, AND AFLATOXIN B CONTAMINATION OF STORED SORGHUM IN DEMAK AND WONOGIRI REGENCIES, CENTRAL JAVA OKKY SETYAWATI DHARMAPUTRA; SANTI AMBARWATI SANTI; INA RETNOWATI INA
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 18 No. 2 (2011)
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (147.353 KB) | DOI: 10.11598/btb.2011.18.2.246

Abstract

The objectives of this study were to collect informations on the method of postharvesthandling of sorghum and to investigate the moisture contents, insects infestation, fungalinfection, and aflatoxin B contents of stored sorghum grains collected from various stagesof the delivery chain in Demak and Wonogiri regencies, Central Java. In Demak regencysorghum cultivation was monoculture, variety cultivated was UPC-S1. In Wonogiri regencysorghum cultivation was intercropping with secondary crop and cassava. Sorghum varietiescultivated were Kawali, Numbu, ZH30, Mandau and Hibrida hybrids. There was a differencebetween the method of postharvest handling of sorghum at farmer and collector levels inDemak andWonogiri regencies. In general the method of postharvest handling of sorghum inDemak regency was more appropriate and more advance compared to that in Wonogiriregency. The moisture contents of sorghum at farmer as well as at collector level in Demakregency (13.0%) and Wonogiri regency (12.9%) were still lower that that of normal (safe)moisture content of sorghum. The number of insect species associated with sorghum invarious distribution level in Demak andWonogiri regencies was 10 and 17 species, respectively.The dominant insects species were and . The number offungal species found in sorghum at various distribution level in Demak andWonogiri regencieswas 23 species, respectively. In general, the dominant fungal species were ,and . In Demak regency aflatoxin B contents of sorghum atfarmer and collector levels were 22.50 and 15.45 ppb, respectively, while in Wonogiri regency2.27 and 10.28 ppb, respectively.insects, fungi, aflatoxin B , stored sorghum, Demak and Wonogiri regencies,Central Java
Utility of matK Gene as DNA Barcode to Assess Evolutionary Relationship of Important Tropical Forest Tree genus Mangifera (Anacardiaceae) in Indonesia and Thailand Topik - Hidayat; Adi - Pancoro; Diah - Kusumawaty
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 18 No. 2 (2011)
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (305.512 KB) | DOI: 10.11598/btb.2011.18.2.41

Abstract

MaturaseK (matK) gene of chloroplast DNA has been served as appropriate candidate to be a DNA barcode in angiosperms. Using this DNA marker, 19 species of genus Mangifera, one of ecologically important crop, collected from Indonesia and Thailand were analyzed. Phylogenetic analysis using parsimony method revealed that the gene could clasify Mangifera into three major groups, namely group I, II, and III. Moreover, the matK barcode can identify Mangifera species that is originated from Thailand. Although this classification system is different with the previous system, it can provide a new information about Mangifera taxonomy. Results further exhibited that DNA sequences of the matK of two Mangifera species (M. laurina dan M. macrocarpa) are different between Indonesia and Thailand specimens. Keywords— DNA barcode, Mangifera, matK gene, parsimony, phylogenetic analysis
Elimination Of CVB (Chrysanthemum Virus B) From A Range Of ChrysanthemumTHE Varieties By Meristem Culture Following Antiviral and Heat Treatments Kurniawan Budiarto; Budi Marwoto Budi; Lia Sanjaya Lia; Muchdar Soedarjo Muchdar; Indijarto Budi Rahardjo Indijarto
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 18 No. 2 (2011)
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (92.283 KB) | DOI: 10.11598/btb.2011.18.2.45

Abstract

CVB elimination for retaining healthy protocols from infected chrysanthemum plant was investigated trough combined treatment of meristem culture with synthetic antiviral ribavirin and thermotherapy under in vitro conditions. The biological material used on the experimentation was constituted of six commercial varieties: Dewi Sartika, Saraswati, Yellow Fiji, White Puma, Yellow Puma and White Reagent.  Tissue culture initiation was conducted through plantlet establishment using MS supplemented with IAA.  Ribavirin was added in media treatments with the concentration of 40 mg/l.  Parallel with this step, heat treatment with different durations (1, 2, and 3 weeks) was also conducted on the plantlets.  Meristem culture was done following the chemo- and thermotherapy.  The experiment resumed the failure single treatment of meristem culture in eliminating CVB from the infected chrysanthemum plantlets.  Under heat treatment, percentage of virus-free plantlets increased along with the duration of thermotherapy, though the survival rate of plantlets decreased in lengthened heat treatment. The best results regarding virus free plant percentage was obtained when meristem culture was applied following ribavirin or three weeks heat treatment which effectively eliminated virus particles from the plant.
NOTES ON THE DISTRIBUTION OF INVASIVE FRESHWATER SNAIL POMACEA CANALICULATA (LAMARCK, 1822) AND P. INSULARUM ( D'ORBIGNY, 1835) IN INDONESIA RISTIYANTI M. MARWOTO; NUR R. ISNANINGSIH NUR
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 18 No. 2 (2011)
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2011.18.2.247

Abstract

The freshwater snails and have been reported as importantinvasive species causing damage to crops and predominantly wetland rice in Asia. These snailsare known as “Golden Apple Snail” (GAS), an introduced species from Argentina.or known as “keong mas, keongmurbei” was introduced in Indonesia around 1983,and after more than 20 years, it now can be found very abundant at various habitats such asmarshes, ponds, irrigations, lakes and rice fields in almost all places in Indonesia.Based on the collections of these snails deposited in the MZB (Museum ZoologicumBogoriense, Research Center for Biology) and secondary data (references), the distributionof these two snails was studied. is widely distributed, while only found at Lake Semayang and Lake Balikpapan in Kalimantan. The distribution map ispresented and will be useful as a basic information to manage these invasive snails.

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