cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Knowledge Management Department
Contact Email
kmd@biotrop.org
Phone
+62251-8323848
Journal Mail Official
biotropia@biotrop.org
Editorial Address
SEAMEO BIOTROP Jl. Raya Tajur Km. 6 Bogor 16134 INDONESIA
Location
Kota bogor,
Jawa barat
INDONESIA
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 520 Documents
 41   42   43   44   45 
YEAST PROBIOTICS WITH POTENTIAL TO ASSIMILATE CHOLESTEROL IN VITRO YAN RAMONA; NI LUH PUTU ARIWATHI
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 29 No. 3 (2022): BIOTROPIA Vol. 29 No. 3 Desember 2022
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2022.29.3.1768

Abstract

 In the last two decades the use of yeasts as new probiotics has increased significantly. Therefore, our current research was focused on the investigation of yeasts for novel probiotic development in Bali. The main objectives of this research were to isolate and characterize yeasts isolated from ragi tape (dried mix cultures of microorganisms normally used in the fermentation of rice or cassava in Indonesia) and tape ketan (fermented sticky rice) for possible use as yeast-based novel probiotics, with capability to assimilate cholesterol in vitro. In this study, the potential yeast isolates were evaluated for survival at low pH conditions (pH 2, 3, or 4) and in high levels of sodium deoxicholic (NaDC), at concentrations of 0.2, 0.4, or 0.6 mM. In addition, the yeast isolates were also evaluated for their ability to assimilate cholesterol in vitro and to elucidate biotransformation of cholic acid into deoxycholic acid. This study led to 10 isolates that were resistant to pH levels of 2, 3, or 4 and to NaDC at concentration of higher than 0.4 mM. Most of those isolates were also found to assimilate cholesterol in vitro at the rate of between 18% and 76% in 24 hours incubation. In the biotransformation test, none of those isolates transformed cholic acid into deoxycholic acid, indicating that they are safe and have potential to be developed into novel probiotics, either for human or cattle
MACROFUNGAL DIVERSITY IN DIFFERENT VEGETATION COMPOSITIONS IN TEGHARI COMMUNITY FOREST, KAILALI, WEST NEPAL KAUSALYA JOSHI; HARI SHARAN ADHIKARI; HARI PRASAD ARYAL; LAXMI JOSHI SHRESTHA
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 29 No. 3 (2022): BIOTROPIA Vol. 29 No. 3 Desember 2022
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2022.29.3.1792

Abstract

Macrofungi are high-value forest resources that have functionally significant roles in the forest ecosystem. The macrofungal community of three different vegetation compositions, i.e., Sal (Shorea robusta) Forest, Tropical Deciduous Riverine Forest, and Tropical Evergreen Forest of Teghari Community Forest were investigated. Systematic random sampling was made where 60 plots (10 x 10 m) were laid in all different forest types (20 plots in each). A total of 102 macrofungi species were reported belonging to 36 families. Polyporaceae (17 species) was the largest family followed by Tricholomataceae (13 species) and saprophytic fungi were more frequent than mycorrhizal and parasitic fungi. The tropical evergreen forest was rich in macrofungi (59 species) followed by sal forest (40 species) and tropical deciduous riverine forest (38 species). Macrofungal diversity was directly related to surrounding host species. Similarly, increased soil moisture and canopy cover intensified the abundance of saprophytic fungi. The species richness was increased with increasing organic carbon, canopy, moisture, pH, and litter cover. However, soil nitrogen, phosphorus, and potassium were less significant in affecting species richness. Also, the disturbance was negatively correlated with the species richness of macrofungi. This study highlights the hidden diversity which is necessary for the conservation of macrofungi, to optimize forest ecosystem integrity and resilience against biotic and abiotic agents
POTENCY OF YEAST AS A BIOCONTROL AGENT OF OCHRATOXIN A-PRODUCING FUNGI AND ITS EFFECT ON ARABICA COFFEE TASTE Okky S. Dharmaputra; Ina Retnowati; Nijma Nurfadila
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 30 No. 1 (2023): BIOTROPIA Vol. 30 No. 1 April 2023
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2023.30.1.1379

Abstract

Biocontrol agents can be used to control mycotoxigenic fungi, which include different species of yeast. The objectives of this research were to select yeast isolates that can inhibit the growth of ochratoxin A (OTA)-producing fungi (Aspergillus ochraceus BIO 37310) and to increase the taste of Arabica coffee processed using wet and semi-wet methods. Twenty-two yeast isolates (KA, KA2, KB, KB2, KC, KD, Endomyces decipiens BIO 131215, E. fibuliger BIO 132216, BIO 132217, BIO 13218, BIO 132219, BIO 132220, Candida krusei (= Issatchenkia orientalis) BIO 211285, BIO 211286, BIO 211287, BIO 211288, BIO 211289, BIO 211290, BIO 211291, Saccharomyces cerevisiae BIO 341363, BIO 341364, and BIO 341365) were screened for their antagonistic property against A. ochraceus BIO 37310 in vitro using well (dip) test method. The results showed that C. krusei (BIO 211287, BIO 211288, and BIO 211289) inhibited A. ochraceus BIO 37310. In vivo the highest yeast population was found in coffee beans processed using a semi-wet method inoculated with C. krusei BIO 211288 (46,222 ± 9,576 cfu/g), which was not significantly different from that of the coffee beans inoculated with C. krusei BIO 211287 (36,333 ± 14,000 cfu/g). The three yeast isolates were also able to grow either in coffee beans processed using wet or semi-wet methods inoculated with A. ochraceus BIO 37310 and each yeast isolate. Interaction between the three yeast isolates and A. ochraceus BIO 37310 resulted in E-type interaction, i.e. the fungus was not able to grow anymore, while the yeasts grew further. The total cupping scores of coffee beans inoculated with the three yeast isolates were higher than those of coffee beans uninoculated and inoculated with commercial lactic acid bacteria. The three yeast isolates could be used as biocontrol agents of A. ochraceus BIO 37310 and increase the sensorial quality of coffee beverages.
MOLECULAR DOCKING ANALYSIS OF SELECTED CURCUMA XANTHORRHIZA CONSTITUENTS AS POTENTIAL ANTICANCER DRUG Akhmad Endang Zainal Hasan; I Made Artika; Suryani; Dhani Luthfi Ramadhani
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 30 No. 1 (2023): BIOTROPIA Vol. 30 No. 1 April 2023
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2023.30.1.1386

Abstract

Stress conditions will trigger the histone hyperacetylation process due to histone acetyltransferase p300/CBP (HAT PCAF) constantly transfers acetyl groups from acetyl-CoA to conserved lysine residues on histone proteins to form ε-N-acetyllysine. This can be a cause of cancer. The purpose of this study was to investigate the potential mechanisms and inhibition of PCAF HAT by chemical components of C. xanthorrhiza namely, curcumin, demethoxycurcumin, bisdemethoxycurcumin, and xanthorrizhol using in silico, the molecular docking method.  Results showed that the components of C. xanthorrhiza as ligands have the capability to inhibit the binding of acetyl-CoA to histone. These results can be used to predict the inhibitory mechanisms exhibited by C. xanthorrhiza components, as competitive and noncompetitive substances. We hypothesize that C. xanthorrhiza components resemble a substrate, leading to prevention of the natural substrate (histone) to bind to the enzyme, and hence block the product formation. The smallest free Gibs energy was exhibited by curcumin on chain B and by bismethoxycurcumin on chain A, with values of -8.8 and -8.4 Kcal/mol, respectively.
Morphological Characteristics and Reproductive Organs Assessment of Blue-Spotted Mudskipper Boleophthalmus Boddarti in Peninsular Malaysia Nur-Hidayah Mohd Nor; Syazwin-Rafhanah Saifuzzaman; Izzati Adilah Azmir; Norjasmin Hussin
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 30 No. 1 (2023): BIOTROPIA Vol. 30 No. 1 April 2023
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2023.30.1.1561

Abstract

Mudskippers have a unique adaptation allowing them to live on the land and commonly inhabiting the mangrove ecosystem. A fundamental study on the Blue-spotted mudskippers, Boleopthalamus boddarti were purposely to identify the species through morphometric and meristic characteristics, observation on the gonad organs as well as to correlate with their length-weight relationship. Collection of B. boddarti (n=72) from Matang Perak, Pendas Johor and Pekan Pahang was conducted using hand and net. Data collection on seventeen morphometric and seven meristics characters, length and weight, and pictorial documentation on male and female gonads were conducted. The means of each characteristic were estimated by using analysis of Variance (ANOVA) with P<0.05. The morphometric analysis found eye diameter and posterior dorsal fin ray count characteristics were significantly different (P<0.05) followed by five meristics characteristics except for anterior dorsal fin ray count and upper jaw teeth characteristics (F value ≥ 1.0). The mature gonad of female B. boddarti was found with an ovary in bright yellow coloration, turgid, firm and visible presence of eggs. Male gonads were identified with a testis having two lobes, a swollen structure at the top of the elongated shape and appear pale pink and thicker than the immature testes that generally exist in string-like structures. The length and weight of the fish were found directly proportional to the regression curve displayed b≠3. Morphometric and meristic characteristics were a reliable method in the identification of fish in general and for B. boddarti in specific. The observation of gonads differentiation helps understand the mature and immature state of the sex organs. This study offered an easy, quick and low-cost approach in determining species and sexes compared to the molecular method.
DETECTING GROUPER (EPINEPHELINAE) DIET COMPOSITION AND PREY AVAILABILITY IN RAJA AMPAT CORAL REEFS THROUGH DNA AND eDNA METABARCODING: DETECTING GROUPER (EPINEPHELINAE) DIET THROUGH DNA AND eDNA METABARCODING Hawis Madduppa; Dietriech Geoffrey Bengen; Inna Puspa Ayu; Beginer Subhan; Lalu M Iqbal Sani; Budi Prabowo
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 30 No. 1 (2023): BIOTROPIA Vol. 30 No. 1 April 2023
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2023.30.1.1608

Abstract

Gaining extensive knowledge of prey sources is an essential approach for understanding trophic structure and relationships, especially in highly diverse coral reef ecosystems. Groupers are a major Asian reef fish commodity, making it important to study grouper prey and the trophic relations involved. The wide distribution of groupers across different environments could lead to distinctive predatory behaviour. Therefore, this study was conducted to investigate and compare the taxonomic classification and composition of prey in the diets of two common groupers (Epinephelus areolatus and E. malabaricus) based on DNA metabarcoding of stomach contents and potential prey detection using environmental DNA tools at sites in the coral reefs of Raja Ampat, Indonesia. DNA recovered from the water column comprised taxa from the Arthropoda, Chordata, Cnidaria and Mollusca, several of which were also found in grouper guts, with Cnidaria the most abundant class. Diversity was high for potential prey species in the environment and prey consumed by each grouper species. The high overlap in prey identified from gut contents indicates these two epinephelids have a similar feeding strategy. However, nMDS ordination showed segregation between the prey consumed by each species and potential prey available in the environment. The results indicate a low likelihood of competition between the two grouper species, related to the abundance and wide choice of potential prey in the highly biodiverse Raja Ampat coral reef ecosystem.
POLLINATION ECOLOGY, BREEDING SYSTEMS AND SEED DISPERSAL IN PASSIFLORA FOETIDA L. (PASSIFLORACEAE), A PERENNIAL HERBACEOUS CLIMBER WEED IN SOUTHERN PARTS OF ANDHRA PRADESH, INDIA.: POLLINATION ECOLOGY OF PASSIFLORA FOETIDA L. (PASSIFLORACEAE). RAO M. MALLIKARJUNA
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 30 No. 1 (2023): BIOTROPIA Vol. 30 No. 1 April 2023
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2023.30.1.1675

Abstract

Passiflora foetida L. (Passifloraceae) is an herbaceous climber weed; grows up to 1.5 - 6.5m tall occur in riverbeds, wastelands, forest floors, crop fields, and roadsides, ascend about 4 to 10 m (13 to 32 feet) tall, exhibit peak flowering in July to December; produce white flowers marked with a ring of radially oriented purple streaks nectar guide, the flower opens along with sunrise and closes the same day noon. It exhibits three kinds of stigma positions in the same plant with different frequencies which determined the fertility rate of flower 1. Stigma below the anthers 64% (fully curved), 2. Stigmas above the anthers 16% (no curvature), 3. Stigmas above anthers 20% (partially curved). P. foetida flower shows both self-pollination and Cross-pollination. Xylocopa latipas sp. visits the flowers frequently among all of the forages and the Stigmas curved below the anthers produce height fruit set (68%) and seed set (82.14%). The fruits and seeds spread far destinations by animals (Zoochory). It cultivates in agricultural fields for their ornamental flowers, edible fruits, and pharmaceutical uses. The present study explored ecological importance, reproductive ecology and the pollinator interaction of the plant.
Carbon Stored on Seagrass Beds in Gili Maringkik, Lombok, Indonesia Firman Ali Rahman; Ibnul Qayim; Yusli Wardiatno
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 30 No. 1 (2023): BIOTROPIA Vol. 30 No. 1 April 2023
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2023.30.1.1776

Abstract

Seagrass beds are an important vegetation for reducing the impact of global warming besides the function of forest and mangroves vegetation. The research aims to find the composition of seagrass species, density, seagrass coverage, seagrass standing biomass, seagrass standing carbon and substrate carbon. The research was conducted in Gili Maringkik, Lombok, Indonesia. The research included observation of species composition and the sample was collected from 0.5 ×0.5 m plot area. Total plot area was 25 on five lanes with the space between plots 25 m and between lanes 100 m. The researcher found that there were eight seagrass species (two families, six genera): Cymodocea rotundata, Cymodocea serrulata, Enhalus acoroides, Halodule pinifolia, Halophila minor, Halophila spinulosa, Syringodium isoetifolium and Thalassia hemprichii. Cymodocea rotundata (506.40±187.809 stand.m-2) was the species of highest density and while the species of Thalassia hemprichii (36.52±30.004 %) was the species of highest coverage. Total of seagrass standing biomass in Gili Maringkik was 1081.85 g.DW.m-2 with the carbon stock of seagrass beds was 483.86 g.C.m-2 and substrate carbon content was 0.09%–0.49%. the total carbon stock of seagrass beds in Gili Maringkik has 153.96 ton.C (4.84 ton.C.Ha-1).
IDENTIFICATION OF THE MOLUCCAN MEGAPODE (Eulipoa wallacei) NATURAL HABITAT IN HARUKU ISLAND, INDONESIA AND ITS VEGETATION COMPOSITION Handy Erwin Pier Leimena; Achmad Sjarmidi; Tati Suryati Syamsudin
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 30 No. 2 (2023): BIOTROPIA Vol. 30 No. 2 August 2023
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2023.30.2.1778

Abstract

The characteristics of island vegetation greatly influence the activities of endemic birds in island areas, such as the Moluccan endemic megapodes (Eulipoa wallacei) on Haruku Island. Therefore, it is essential to identify the specific location of the habitat utilized by individual birds for their daily activities on Haruku Island and to analyze the composition of the vegetation and the variety of plant species. Identification of bird habitat locations using radio-tracking on four newly hatched chicks and four adult birds. A total of 330 individual tracking points were recorded during the study period. The vegetation sample used a total of 420 plots for seedlings, saplings, poles, and trees which were then analyzed for importance value index (IVI), diversity, evenness, and similarity. We found that the Tanjung Maleo forest was their nesting habitat, while the Marunimei and Lalean forests were their daily habitats. A total of 91 plant species and 60 plant families were discovered with the vegetation diversity value of the three habitats was moderate (H’mean = 3.07) and tended to be dominated by air plant (Kalanchoe pinnata), sword fern (Nephrolepsis exalta), cogongrass (Imperata cylindrica), coco-grass (Cyperus rotundus), Indian camphorweed (Pluchea indica), and lanzone (Lansium domesticum) (Emean = 0.88), and have a relatively low level of species similarity between habitats (SImean = 38.30%). We found that the daily habitat of the Moluccan megapode on Haruku Island was around their nesting sites and has a complex structure because it was composed four vegetation strata. Therefore, for conservation purposes, habitat management must prioritize preserving forest habitats around the bird nesting sites.
SOURCES OF RESISTANCE AND TRICHOME ANALYSIS OF PHILIPPINE INDIGENOUS Hoya SPECIES AGAINST THE MILKWEED APHID, Aphis nerii Boyer De Fonscolombe (HEMIPTERA: APHIDIDAE) Cris Cortaga
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 30 No. 1 (2023): BIOTROPIA Vol. 30 No. 1 April 2023
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2023.30.1.1783

Abstract

The Philippines is one of the centers of diversity of Hoya and an extensive collection of indigenous species are conserved at the Institute of Plant Breeding, University of the Philippines Los Baños. In maintaining these Hoya species inside the screenhouse, the major insect pest noted to attack the plants is the milkweed aphid, Aphis nerii Boyer de Fonscolombe. Thus, Hoyas were evaluated for resistance against this insect pest. Among the 45 Hoya species evaluated, 11 showed promising results wherein no aphid infestation was consistently observed during the three evaluation trials. These are H. aurigueana, H. carnosa, H. coriacea, H. diversifolia, H. greenii, H. imperialis, H. madulidii, H. obscura, H. odorata, H. paziae, and H. pubicalyx. As the first line of plants defense against herbivory, we sampled four resistant (H. madulidii, H. pubicalyx, H. carnosa, and H. obscura) and two susceptible (H. buotii and H. meliflua) species for analysis of their trichome traits. The mean trichome length was longest in H. carnosa (0.38mm), followed by H. madulidii (0.33mm), and lastly, H. pubicalyx and H. obscura (0.15mm). Mean trichome density (at 1.64mm2 microscopic field) was highest in H. madulidii (54.45), followed by H. pubicalyx (7.5), and lastly, H. carnosa (3.55) and H. obscura (3.45). In contrast, no trichome was observed in the susceptible species H. buotii and H. meliflua. Hence, trichomes are one of the important resistance traits of Hoya against the milkweed aphid. To our knowledge, this is the first report on resistance evaluation in Hoya and the role of its trichomes against the milkweed aphid. The results of this study can aide in the management of milkweed aphids and in developing improved Hoya cultivars with resistance to insects such as milkweed aphids.

Page 43 of 52 | Total Record : 520

 41   42   43   44   45 

Filter by Year

1987 2025


Reset
Filter By Issues
All Issue Vol. 32 No. 2 (2025): BIOTROPIA Vol. 32 No. 2 August 2025 Vol. 32 No. 1 (2025): BIOTROPIA Vol. 32 No. 1 April 2025 Vol. 31 No. 3 (2024): BIOTROPIA Vol. 31 No. 3 December 2024 Vol. 31 No. 2 (2024): BIOTROPIA Vol. 31 No. 2 August 2024 Vol. 31 No. 1 (2024): BIOTROPIA Vol. 31 No. 1 April 2024 Vol. 30 No. 3 (2023): BIOTROPIA Vol. 30 No. 3 December 2023 Vol. 30 No. 2 (2023): BIOTROPIA Vol. 30 No. 2 August 2023 Vol. 30 No. 1 (2023): BIOTROPIA Vol. 30 No. 1 April 2023 Vol. 29 No. 3 (2022): BIOTROPIA Vol. 29 No. 3 Desember 2022 Vol. 29 No. 2 (2022): BIOTROPIA Vol. 29 No. 2 Agustus 2022 Vol. 29 No. 1 (2022): BIOTROPIA Vol. 29 No. 1 April 2022 Vol. 28 No. 3 (2021): BIOTROPIA Vol. 28 No. 3 December 2021 Vol. 28 No. 2 (2021): BIOTROPIA Vol.28 No.2, Agustus 2021 Vol. 28 No. 1 (2021): BIOTROPIA Vol. 28 No. 1 April 2021 Vol. 27 No. 3 (2020): BIOTROPIA Vol. 27 No. 3 December 2020 Vol. 27 No. 2 (2020): BIOTROPIA Vol. 27 No. 2 August 2020 Vol. 27 No. 1 (2020): BIOTROPIA Vol. 27 No. 1 April 2020 Vol. 26 No. 3 (2019): BIOTROPIA Vol. 26 No. 3 December 2019 Vol. 26 No. 2 (2019): BIOTROPIA Vol. 26 No. 2 August 2019 Vol. 26 No. 1 (2019): BIOTROPIA Vol. 26 No. 1 April 2019 Vol. 25 No. 3 (2018): BIOTROPIA Vol. 25 No. 3 December 2018 Vol. 25 No. 2 (2018): BIOTROPIA Vol. 25 No. 2 August 2018 Vol. 25 No. 1 (2018): BIOTROPIA Vol. 25 No. 1 April 2018 Vol. 24 No. 3 (2017): BIOTROPIA Vol. 24 No. 3 December 2017 Vol. 24 No. 2 (2017): BIOTROPIA Vol. 24 No. 2 August 2017 Vol. 24 No. 1 (2017): BIOTROPIA Vol. 24 No. 1 April 2017 Vol. 23 No. 2 (2016): BIOTROPIA Vol. 23 No. 2 December 2016 Vol. 23 No. 1 (2016): BIOTROPIA Vol. 23 No. 1 June 2016 Vol. 22 No. 2 (2015): BIOTROPIA Vol. 22 No. 2 December 2015 Vol. 22 No. 1 (2015): BIOTROPIA Vol. 22 No. 1 June 2015 Vol. 21 No. 2 (2014): BIOTROPIA Vol. 21 No. 2 December 2014 Vol. 21 No. 1 (2014): BIOTROPIA Vol. 21 No. 1 June 2014 Vol. 20 No. 2 (2013): BIOTROPIA Vol. 20 No. 2 December 2013 Vol. 20 No. 1 (2013): BIOTROPIA Vol. 20 No. 1 June 2013 Vol. 19 No. 2 (2012): BIOTROPIA Vol. 19 No. 2 December 2012 Vol. 19 No. 1 (2012): BIOTROPIA Vol. 19 No. 1 June 2012 Vol. 18 No. 2 (2011): BIOTROPIA Vol. 18 No. 2 December 2011 Vol. 18 No. 1 (2011): BIOTROPIA Vol. 18 No. 1 June 2011 Vol. 17 No. 2 (2010): BIOTROPIA Vol. 17 No. 2 December 2010 Vol. 17 No. 1 (2010): BIOTROPIA Vol. 17 No. 1 June 2010 Vol. 16 No. 2 (2009): BIOTROPIA Vol. 16 No. 2 December 2009 Vol. 16 No. 1 (2009): BIOTROPIA Vol. 16 No. 1 June 2009 Vol. 15 No. 2 (2008): BIOTROPIA Vol. 15 No. 2 December 2008 Vol. 15 No. 1 (2008): BIOTROPIA Vol. 15 No. 1 June 2008 Vol. 14 No. 2 (2007): BIOTROPIA Vol. 14 No. 2 December 2007 Vol. 14 No. 1 (2007): BIOTROPIA Vol. 14 No. 1 June 2007 Vol. 13 No. 2 (2006): BIOTROPIA Vol. 13 No. 2 December 2006 Vol. 13 No. 1 (2006): BIOTROPIA Vol. 13 No. 1 June 2006 No. 25 (2005) No. 24 (2005) No. 23 (2004) No. 22 (2004) No. 21 (2003) No. 20 (2003) No. 19 (2002) No. 18 (2002) No. 17 (2001) No. 16 (2001) No. 15 (2000) No. 14 (1999) No. 13 (1999) No. 12 (1999) No. 11 (1998) No. 10 (1997) No. 9 (1996) No. 8 (1995) No. 7 (1994) No. 6 (1992) No. 5 (1992) No. 4 (1991) No. 3 (1989) No. 2 (1989) Vol. 1 No. 1 (1987) More Issue