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 15 Documents
 1   2 
Search results for , issue "Vol 6, No 2 (2021): August" : 15 Documents clear
Butterfly Pea (Clitoria ternatea L.: Fabaceae) and Its Morphological Variations in Bali I Wayan Suarna; I Made Saka Wijaya
Journal of Tropical Biodiversity and Biotechnology Vol 6, No 2 (2021): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.63013

Abstract

Butterfly pea (Clitoria ternatea L.) is an important perennial herbaceous plant with a range of uses as ornamental plants, fodder crops, medicine, and sources of natural food colorant and antioxidants. The leaves and pods are commonly used as a source of protein in fodder, while the flowers are usually dried and processed as a high antioxidant-containing tea. The blue variant of butterfly pea was the most commonly used variety, although there are quite diverse butterfly pea varieties. The present study aimed to observe the morphological variations among the 26 butterfly pea accessions that originated from a wide range of areas in Bali. The explorative method was used to obtain diverse specimens (accessions) of butterfly pea in Bali, and subsequently, morphological characterization of the accessions was performed. The primary data of morphological traits that were recorded included stems, leaves, flower structures, flower colors, pods, and seeds. The data were analyzed descriptively to determine the morphological variations between accessions. The results showed three major morphological variations: (i) the colour of the flower (corolla), (ii) the corolla structure, and (iii) the stamen structure. The colour of corolla has four variations: white, mauve, light blue, and dark blue; while the corolla structure has two variations: normal and multiple layered corollas. The stamen character showed a correlation with the structure of the corolla. The normal corolla has diadelphous stamens, while the multiple layered corollas have solitary stamens. These morphological variations are the genetic richness of Indonesia’s biodiversity and should be protected and conserved.
The Increase of Sumatran Tiger’s Prey Following Eradication of Melastoma malabatrichum in Way Kambas National Park, Indonesia Jani Master; Ibnul Qayim; Dede Setiadi; Nyoto Santoso
Journal of Tropical Biodiversity and Biotechnology Vol 6, No 2 (2021): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.63972

Abstract

The invasion of the planter's rhododendron (Melastoma malabatrichum) in Way Kambas National Park caused the loss of the sumatran tiger preys feeding ground, therefore efforts were made to eradicate the plant. This study aimed to compare the presence of sumatran tiger preys between M. malabatrichum-invaded location and eradicated location. Eradication was carried out by removing M. malabatrichum on a plot measuring 80 x 60 m2. To record the animal visit, the camera traps were placed at the eradicated and invaded location of M. malabatrichum for comparison. The results showed that the M. malabatrichum eradicated location was more frequently visited by sumatran tiger preys. At the M. malabatrichum eradicated location, camera traps recorded 19 species of wild boar having the highest encounter rate (55.23) followed by sambar deer (33.24), and long-tailed macaque (17.43). Meanwhile, at the M. malabatrichum invaded location, camera traps recorded 13 species with wild boar having the highest encounter rate (30.56), followed by sambar deer (14.75), and long-tailed macaque (14.48). Thus, the eradication of M. malabatrichum had a good impact on increasing the number of sumatran tiger preys due to the availability of feed after being free from M. malabatrichum invasion.
The Oriental Tiny Frog of the Genus Microhyla Tschudi, 1839 (Amphibia: Anura: Microhylidae) Revealed across Geographical Barriers of the Wallace Line Rury Eprilurahman; Vestidhia Yunisya Atmaja; Misbahul Munir; Amir Hamidy; Tuty Arisuryanti; Rosichon Ubaidillah
Journal of Tropical Biodiversity and Biotechnology Vol 6, No 2 (2021): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.64342

Abstract

The frog genus Microhyla was considered as the South, East, and Southeast Asian frog species. Microhyla orientalis was described in 2013, distributed in Java and Bali, Indonesia. Thenceforth, it was known as the easternmost distribution of this genus within the oriental region, but recently this species was recorded from the Timor Island and Sulawesi on the Wallace regions. We applied molecular analysis to evaluate the taxonomic status  and the origin of the Wallacean population. Phylogenetic analysis using the partial 16S mitochondrial gene demonstrated that the Java, Timor and Sulawesi populations were not significantly different from the Bali population. This Wallacean population of M. orientalis was originated from Java and possibly it is accidentally distributed by humans through the expansion of agricultural activity.
Newly Recorded Alien Species of Ficus L. (Moraceae) in Java, Indonesia Peniwidiyanti Peniwidiyanti; Arifin Surya Dwipa Irsyam; Asih Perwita Dewi; Muhammad Rifqi Hariri; Rina Ratnasih Irwanto; Zakaria Al Anshori
Journal of Tropical Biodiversity and Biotechnology Vol 6, No 2 (2021): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.65313

Abstract

Ficus is the largest genus in the Moraceae family, with the syconium inflorescence as its characteristic. This genus has a wide distribution worldwide, and about 367 species were found in the Malesia region. There are 74 species have been recorded on Java, and seven species are known as introduced plants. Based on our recent observations in West Java, Central Java, Yogyakarta, and East Java, three newly recorded Ficus species were found, namely F. auriculata Lour., F. maclellandii King, and F. natalensis subsp. leprieurii (Miq.) C.C. Berg. The species were introduced to Java as an ornamental plant. Descriptions, photographs, and a brief discussion of the three newly recorded species are presented in this manuscript.
Neither Coral- nor Symbiont- Genetic Diversity may Explain the Resistance of the Coral Echinopora lamellosa to Bleaching Imam Bachtiar; Muhammad Irsyad Abiyusfi Ghafari; Ibadur Rahman; Baiq Hilda Astriana
Journal of Tropical Biodiversity and Biotechnology Vol 6, No 2 (2021): August
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.66161

Abstract

Genetic diversity has an important role in the stability of coral populations in coping with disturbances. In the last three bleaching events, the coral Echinopora lamellosa survived better in the eastern- than the western- Lombok waters that are not related to algal symbiont diversity. The present study aimed to assess the genetic diversity of E. lamellosa from the two locations in the Lombok waters. The ITS1-5.8S-ITS2 (whole ITS region) marker was used to identify and to determine the genetic structure, genetic variation, and demographic pattern of E. lamellosa. The results showed that E. lamellosa of the two locations are two different populations. The haplotype diversity was very high indicating a predominance of sexual reproduction mode for both eastern and western populations. The phylogenetic topology suggests there is possible connectivity between populations, whereas the haplotype network exhibits a restricted gene flow between the two populations.  The results suggest that the present E. lamellosa populations were from both surviving colonies and new recruitment of long-distance larvae. Both population likely shares the same larvae supply brought from source-reefs in the Flores Sea or Makassar Strait by the Indonesian Throughflow. The present and previous studies revealed that genetic diversity alone yet to explain the resistance of E. lamellosa in eastern and western Lombok waters.   

Page 2 of 2 | Total Record : 15

 1   2 

Filter by Year

2021 2021


Reset
Filter By Issues
All Issue Vol 9, No 4 (2024): December Vol 9, No 3 (2024): September Vol 9, No 2 (2024): June Vol 9, No 1 (2024): March Vol 8, No 3 (2023): December 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