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Treubia
Published by BRIN Publishing
ISSN : 00826340     EISSN : 2337876X     DOI : https://doi.org/10.55981/treubia
Core Subject :
Treubia is a scientific journal on zoology of the Indo-Australian Archipelago. We publish original research papers, review articles and case studies focused on animal systematics, animal ecology, and wildlife conservation, encompassing the Indo-Australian region. Animal systematics - New species discovery - Taxonomic assessment of an animal taxon - Systematic revision - Biological evolution of an animal taxon Animal ecology - Animal behavior - Animal distribution and biogeographic overview - Population assessment of an animal taxon Animal conservation - Threatened status assessment of an animal taxon - Environmental issues of an animal taxon
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Articles 6 Documents
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Search results for , issue "Vol. 50 No. 2 (2023)" : 6 Documents clear
Cover and Preface Volume 50 Number 2 (2023) -
Treubia Vol. 50 No. 2 (2023)
Publisher : BRIN Publishing (Penerbit BRIN)

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Abstract

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DIURNAL RAPTORS ON BANDEALIT RESORT AT MERU BETIRI NATIONAL PARK, EAST JAVA, INDONESIA Arif Mohammad Siddiq; Hari Sulistiyowati; Rendy Setiawan; Muhammad Kurniawan; Puji Firmansyah
Treubia Vol. 50 No. 2 (2023)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v50i2.4527

Abstract

Meru Betiri National Park (MBNP) is one of the conservation areas as a habitat for diurnal raptors in East Java. However, the updated information on diurnal raptors in MBNP is still limited, with the latest information recorded in 2014. Therefore, this study aims to inventory the species composition of diurnal raptors in Bandealit Resort at MBNP. This research was conducted in April-June 2022 using the point count method with an observation radius of 1 km. We sampled a total of three observation points in three forest cover types i.e dense vegetation (primary forest), semi-dense vegetation (secondary forest-plantation), and low vegetation (coastal forest). Data collection included diurnal raptors species, frequency of encounters for each species, time of encounter, coordinate points, and activity (flyover, soaring, and perched). The results showed the presence of 10 diurnal raptors at the Bandealit Resort MBNP which consisted of two families (Accipitridae and Falconidae). Based on the IUCN Red list of threatened species, there are eight species of least concern (LC), one species of near threatened (NT), and one species of endangered (EN). The frequency of encounters shows that Crested Serpent-eagle (Spilornis cheela) has the highest frequency value (20%), while the Spotted Kestrel (Falco moluccensis) and Changeable Hawk-Eagle (Nisaetus cirrhatus) have the lowest frequency value (4%). Furthermore, as a special record, the Javan Hawk-eagle (N. bartelsi) is found with a fairly high frequency of encounters (11%). Approximately 75.71% of observed diurnal raptors are in soaring activity. Moreover, based on their distribution area, the primary forest has the highest composition of diurnal raptor species encountered.
MODELING SHIFTING GEOGRAPHICAL DISTRIBUTIONS OF LEAST CONCERN ASIAN BRACKISH FROG FEJERVARYA CANCRIVORA (GRAVENHORST, 1829) (ANURA: DICROGLOSSIDAE) IN WEST JAVA, INDONESIA RELATED TO CMIP 5 RCP 8.5 CLIMATE CHANGE SCENARIO Andri Wibowo; Adi Basukriadi; Erwin Nurdin; Vita Meylani; Nana Suryana Nasution
Treubia Vol. 50 No. 2 (2023)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v50i2.4580

Abstract

Amphibians and their geographical distribution are threatened by climate change, including speciesin West Java, Indonesia. It is estimated that 300 amphibian species are threatened, including the familyDicroglossidae. At the same time, information on how climate change impacts amphibian species inIndonesia is very limited. This study aims to assess and model the suitable habitat for the least concernAsian brackish frog, Fejervarya cancrivora (Gravenhorst, 1829), under the CMIP 5 RCP 8.5 futureclimate change scenario by 2070, analyzed using Maximum Entropy (MaxEnt). The models developedwith MaxEnt showed good predictivity, with an AUC value of 0.701. The models that inform theprecipitation of the wettest month, isothermality, and mean diurnal range variables have significantcontributions to make in shaping F. cancrivora geographical distributions. The models confirm that F.cancrivora had shifted its geographical distribution and had gained and lost habitats under a future climatechange scenario by 2070. F. cancrivora will lose 4,428 km2 of its current habitat and will gain 2,673km2 of new habitat. In total, climate change will cause F. cancrivora to lose its habitat by 1,755 km2.
STUDY ON MORPHOLOGICAL CHARACTERS OF INDONESIAN LITTER FROG (LEPTOBRACHIUM, MEGOPHRYIDAE) Muhammad Fakhri Fauzan; Achmad Farajallah; Amir Hamidy
Treubia Vol. 50 No. 2 (2023)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v50i2.4637

Abstract

Leptobrachium from Southeast Asian populations previously were recognized as a single speciesLeptobrachium hasseltii Tschudi. Taxonomic reassessment revealed that Leptobrachium consists of somecryptic species due to similarities in their morphological appearance but diverse in molecular characters.Among the Indonesian populations, Leptobrachium was split into seven species (L. hasseltii, L. nigrops,L. waysepuntiense, L. hendricksoni, L. ingeri, L. abbotti, and L. montanum). Specifically, L. hasseltii isseparated into two groups; the Sumatran-Javan and the Bali populations. In this study, we analyzed themorphological data of 100 individuals of Leptobrachium to evaluate their morphological differences.The morphological differences expressed by analysis of variance (ANOVA) and principal componentanalysis (PCA) revealed significant differences between each Leptobrachium and four morphologicalcharacters suitable for species identification (the iris color, color pattern, humeral and femoral gland).The morphological differences also showed that the Bali population probably is undescribed species.
A NEW SITE RECORD OF STRIPED ASIAN TREEFROG (AMPHIBIA: RHACOPHORIDAE: Chirixalus trilaksonoi) FROM SUMATRA, WITH REEVALUATION OF ITS CONSERVATION STATUS Alamsyah E.N. Herlambang; Wahyu Trilaksono; Awal Riyanto; M. Fakhri Fauzan; Amir Hamidy
Treubia Vol. 50 No. 2 (2023)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v50i2.4677

Abstract

Two of the six Chirixalus species currently known are distributed in Indonesia. Both species are only known to be distributed in Java, and they are Chirixalus trilaksonoi and Chirixalus pantaiselatan. During two field expeditions conducted in 2022 in Palembang, South Sumatra, we encountered several individuals exhibiting morphological similarities to C. trilaksonoi. Subsequent analysis, encompassing molecular, morphological, and bioacoustic, was undertaken to ascertain the identity of these individuals. The analyses outcomes unequivocally confirm that the specimens from Palembang are indeed C. trilaksonoi. Nevertheless, slight variations were observed between the Javanese and Sumatran populations of C. trilaksonoi. These populations exhibited a low genetic distance of 0.6% in mitochondrial DNA and displayed three polymorphic sites. Furthermore, there are slight differences in various morphological characteristics, and in advertising calls. The IUCN red-list status of this species was also evaluated, and based on the available evidence, we propose C. trilaksonoi as Vulnerable according to criteria B1ab(iii). This study stresses the importance of comprehensive taxon studies, especially in neighboring island, and in one biogeographical region.
BAIT PREFERENCE AND BUTTERFLY DIVERSITY (LEPIDOPTERA: PAPILIONOIDEA) CAUGHT BY BAIT TRAP IN LANGSA URBAN FOREST, LANGSA, ACEH, INDONESIA Herlina Putri Endah Sari; Kartika Aprilia Putri; Andri Yusman Persada; Djunijanti Peggie; Imti Yazil Wafa
Treubia Vol. 50 No. 2 (2023)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v50i2.4688

Abstract

Butterflies are important for the ecosystem and human life. The presence of butterflies has also become an attraction for nature-based tourism. Langsa Urban Forest (LUF) is an ecotourism site in Langsa City with various biodiversity, including butterflies. For now, data on butterfly diversity in LUF is limited to the active collection using insect nets. This research aimed to complete the database of butterflies in LUF by passive collection to support conservation in LUF. Data was collected for 3 months in the early rainy season (from late August to October 2023), with 8 repetitions using the bait trap method. Results showed 13 species from 3 families with 37 individuals. There were 7 species newly recorded, making a total of 43 species in LUF. From 2 different traps used, 9 species preferred banana bait, 6 species preferred shrimp paste bait, and 2 species trapped in both baits. From 13 species collected by bait trap, 11 species are categorized as Not Evaluated and 2 species are Least Concern by the IUCN Red List.

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