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Advances in Tropical Biodiversity and Environmental Sciences
Published by Universitas Udayana
ISSN : 25496980     EISSN : 26220628     DOI : https://doi.org/10.24843/ATBES.2023.v07.i02.p01
Core Subject : Health, Science, Education, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Environmental Science Immunology & microbiology Medicine & Pharmacology Veterinary Other
The scope of the journal covers scientific and technological aspects from all fields that have general relevance to tropical biodiversity and environmental sciences, including investigations on tropical biodiversity, systematics and taxonomy, terrestrial and aquatic ecology, wildlife management and control, ethnobotany and ethnozoology, tropical plant and animal cultivation, general veterinary, natural product chemistry, ecotourism, environmental remediation and management, and geographic information systems (GIS), remote sensing, and other modeling applications for environmental studies.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 85 Documents
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Effect of Giving Sea Salt Through Drinking Water to Broilers on the Total Plate Count of Bacteria, Coliforms, and Escherichia coli in Broiler Feces Tifano Pratista Ramandika Nur Husodo; Ida Bagus Komang Ardana; I Made Merdana; I Gusti Ketut Suarjana
Advances in Tropical Biodiversity and Environmental Sciences Vol. 10 No. 1 (2026): February 2026
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2026.v10.i01.p010

Abstract

The gastrointestinal microbiota plays an essential role in maintaining intestinal health, immune function, and productivity in broiler chickens. The growing concern about antimicrobial resistance arising from the prolonged use of antibiotic growth promoters has spurred exploration of natural alternatives to modulate gut microbial populations. Sea salt contains various minerals, including sodium, magnesium, potassium, and calcium, which may influence intestinal microbial ecology. This study aimed to evaluate the effect of sea salt supplementation through drinking water on the Total Aerobic Bacterial Count (TABC), Coliforms, and Escherichia coli populations in broiler feces. A total of 72 CP 707 broiler chickens were assigned to four treatment groups: control without sea salt supplementation (S0), 1 g/L sea salt (S1), 2 g/L sea salt (S2), and 4 g/L sea salt (S3). Fecal samples were collected by cloacal swabbing at 0, 15, and 30 days of age. Bacterial enumeration was performed using Nutrient Agar and Eosin Methylene Blue Agar. Data were analyzed using multivariate analysis of variance (MANOVA) followed by Duncan’s Multiple Range Test. The results showed that sea salt supplementation had no significant effect on TABC, Coliform, or E. coli counts (P>0.05). In contrast, broiler age significantly affected all bacterial parameters evaluated (P<0.05). Although lower bacterial counts were numerically observed in the 1 g/L and 2 g/L treatment groups compared with the control, these differences were not statistically significant. In conclusion, sea salt supplementation through drinking water at concentrations up to 4 g/L did not significantly reduce fecal bacterial populations in broiler chickens. Age-related microbial succession had a greater influence on bacterial dynamics than sea salt supplementation.
Correlation Between Intertidal Zone Fish Community and Water Parameters of Melasti Beach, Bali Ray Ryther Amgra; Dwi Budi Wiyanto; Putu Satya Pratama Atmaja
Advances in Tropical Biodiversity and Environmental Sciences Vol. 10 No. 1 (2026): February 2026
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2026.v10.i01.p08

Abstract

The ocean and coastal waters have incredible ecosystem diversity, especially in the intertidal zone where tidal fluctuations occur. Although considered extreme, this zone supports many organisms with specialized adaptations to the physical and chemical conditions. As a result, the biodiversity and abundance of organisms in the intertidal zone are higher than in other habitats. Previous research highlights the importance of ecosystems such as coral reefs, seagrass beds, and mangroves in supporting fish biodiversity in the intertidal zone, including ornamental and commercial species. Environmental factors such as temperature, pH, and salinity play significant roles in determining fish diversity, creating various microhabitats. Melasti Beach is the focus of research because it provides important habitats for various fish species and shows high biodiversity. This research is important for understanding and conserving the structure of intertidal fish communities. The research method consists of fish observation using Underwater Visual Census & capture, as well as measuring water parameters (salinity, pH, temperature, and phosphate), with data analysis covering species composition and abundance, ecological indices, and correlations between water parameters and species abundance. The research shows 28 fish families, totaling 74 species and 488 individuals during high tide, and 61 species and 236 individuals during low tide, with a moderate diversity index. Water parameters such as pH, temperature, salinity, and phosphate exhibit minor variations between high and low tides. During high tide, the results showed that water parameters were negatively correlated with species abundance. Similar to high tide conditions, during low tide, temperature and pH maintain a negative correlation, while salinity and phosphate are the opposite.
Species Composition of Macrofungi in Various Ecosystem in Badung Regency, Bali Ni Nyoman Sri Kamala Dewi; Ni Made Gari; Luh Putu Eswaryanti Kusuma Yuni; I Made Saka Wijaya
Advances in Tropical Biodiversity and Environmental Sciences Vol. 10 No. 2 (2026): June 2026 - In Progress
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2026.v10.i02.p02

Abstract

Badung Regency is one of the administrative regions located in Bali Province with diverse ecosystems due to high topographic variations. This topographic heterogeneity affects the region's biodiversity, including the diversity of macrofungi. Macrofungi possess distinctive morphological features and potential uses, however, data regarding their diversity in this region remain insufficient. This research aims to assess the species diversity of macrofungi across five ecosystem types (karst, mangrove, lowland, riparian, and highland ecosystems) in Badung Regency, Bali. The research was conducted from January to May 2025 using the belt transect method, with transect placement by purposive sampling. The results revealed that the composition of macrofungi species in Badung regency comprised of 70 species, categorized in 43 genera and 26 families. Polyporaceae is the family with the highest number of species (18 species) which dominated by genus Trametes (eight species). The highland ecosystem in Jempanang recorded the highest species richness (39 species) and the highest diversity index (H'=3.00). On the contrary, the karst ecosystem in Ungasan exhibited the lowest species richness (three species) and diversity index (H’=0.60). The highest genus similarity index was observed between the lowland and riparian ecosystems (SI=59.26%). Conversely, the lowest was between karst and mangrove ecosystems (SI=0.00%). Environmental factors such as air temperature, air humidity, soil pH, soil temperature, soil moisture, and the presence of organic substrates are related to the occurrence and distribution of macrofungi across the research sites.
Orchid Inventory along The Wongaya Gede Trekking Route of Mount Batukaru, Tabanan, Bali - Indonesia Kania Delima Rizky; Ni Made Gari; I Made Saka Wijaya
Advances in Tropical Biodiversity and Environmental Sciences Vol. 10 No. 1 (2026): February 2026
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2026.v10.i01.p09

Abstract

Orchids are among the most diverse groups of flowering plants, with a wide distribution. However, updated information on their distribution in Mount Batukaru, Bali, remains limited. The mountain was designated as a Cagar Alam (nature reserve) in 2020, highlighting the need for baseline data to support conservation efforts. This study aimed to document orchid species along the western slope through exploration surveys conducted from November 2024 to May 2025 across an elevation gradient from 831 to 2,276 m asl. Data were collected through direct field observations and photographic documentation, while species identification was verified using standard taxonomic references. A total of 25 species were recorded, representing two subfamilies, Epidendroideae (24 species) and Orchidoideae (one species, Corymborkis veratrifolia). Several species not reported in the previous study, including Arundina graminifolia, Calanthe zollingeri, Coelogyne speciosa, and Dendrobium spathilingue, were identified. Notably, Bulbophyllum ovalifolium corresponded to the MB2 (Mount Batukaru 2) variant previously reported from Mount Batukaru. The updated data can be used to evaluate the effectiveness of nature reserve designation and guide future conservation strategies.  
The Role of Home Gardens in Enhancing Food Security and Biodiversity in Pujon District, East Java: Insights From Local User’s Value Index (LUVI) Analysis Tika Putri Agustina; Musma Rukmana; Fernando Andre Watung; Kurniahtunnisa; Mellyatul Aini
Advances in Tropical Biodiversity and Environmental Sciences Vol. 10 No. 2 (2026): June 2026 - In Progress
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2026.v10.i02.p01

Abstract

Homegardens have long been a vital traditional agroforestry system supporting the livelihoods of Indonesian communities, particularly in terms of food security. This study aims to deepen the understanding of the role of homegardens in national food security by focusing on a case study of the Local User Value Index (LUVI) for food crops in homegardens in Pujon, Malang Regency, East Java. The research methodology involved collecting local knowledge from the community and applying the Pebble Distribution Method (PDM) to calculate the significance value of plants across various utility categories (LUVI). The findings indicate that homegardens play a significant role in meeting local food needs, particularly through the production of food crops, vegetables, fruits, herbs, and natural dyes. Crops such as maize and cassava serve as important staple food alternatives in areas with limited agricultural land. The preference for plant usage is influenced by geographical factors, community preferences, and the utility of the plants. This study provides deeper insights into the potential of homegardens and their role in supporting food security, with the aim of contributing to the advancement of knowledge and agricultural policy development in the future.

Page 9 of 9 | Total Record : 85

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