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All Journal BUANA SAINS Biocaster : Jurnal Kajian Biologi
Savitri, Ni Luh Eka
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Education Immunology & microbiology Mathematics Physics

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Potensi Tanaman Pekarangan sebagai Tanaman Refugia Savitri, Ni Luh Eka; Yanuwiadi, Bagyo
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.1076

Abstract

This study focuses on the potential of yard plants as refugia plants that play an important role in maintaining the balance of the ecosystem in residential areas. Yard plants not only function as aesthetic elements that beautify the environment, but also play an ecological role as providers of microhabitats for various organisms, including natural enemies of plant pests. In the context of applied ecology, the concept of refugia emphasizes the function of certain plants that can provide shelter, food sources, and reproductive areas for predators and parasitoids that play a role in biological control of pests. Therefore, the identification and analysis of the potential of yard plants as refugia are important to support the principle of sustainable environmental management in residential areas. This study aims to analyze the composition and structure of yard plant vegetation, identify the main types of arthropod visitors to dominant plants, and assess the ecological relationship between vegetation and the presence of arthropods. The research methods include vegetation surveys with direct censuses to determine the types and dominance of plants, and observations of arthropods using visual encounter techniques. Data were analyzed descriptively quantitatively to determine the structure of the vegetation community and the intensity of interactions between biotic components. The results showed that the most common types of yard plants were the Lily (Hymenocallis littoralis) and the Balinese Ornamental Pandanus (Dracaena draco), with the highest visitation rate among arthropods in the Formicidae family. These findings demonstrate the ecological potential of yard plants as supporting elements for the conservation of natural enemies of pests. This study emphasizes the importance of optimizing yard vegetation as refugia plants to support biological control systems and increase public awareness of the ecological function of plants in the residential environment.
HUBUNGAN JARAK TANAM TERHADAP KEMAMPUAN PENEDUHAN TANAMAN DI TAMAN PERKOTAAN Savitri, Ni Luh Eka
BUANA SAINS Vol 26, No 1 (2026)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v26i1.7434

Abstract

Urban green open spaces (RTH) provide critical shading and cooling services, yet many tropical cities like Palu have suboptimal planting designs. This study evaluated tree species, planting distance, and spatial patterns in Vatulemo Park (20,000 m²) using a survey method. Planting distances (n=34 trees), canopy overlap, and air temperature under shade were measured at 13:00 local time. Pearson correlation analysis was performed. Dominant species were Samanea saman (spacing 25 m) and Terminalia mantaly (spacing 4 m). Canopy overlap occurred only at 4 m spacing. Under-canopy temperatures were 29.3°C (25 m) and 30.4°C (4 m). Correlation was very strong (R = 0.98, p 0.01). Planting pattern followed row arrangement, compliant with Regulation No. 5/PRT/M/2008. However, species richness (26 taxa) is far below the recommended 150. Planting distance significantly affects shading effectiveness. Vatulemo Park requires reduced spacing (4–6 m), canopy overlap, and increased species diversity to optimize thermal comfort.
Co-Authors Bagyo Yanuwiadi