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All Journal Jurnal Biologi Tropis Jurnal Penelitian Kehutanan Bonita Wana Lstari
Oktarina Maulidia
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Environmental Science Immunology & microbiology Materials Science & Nanotechnology Social Sciences

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Analysis of Vegetation Structure and Spesies Diversity in the Ranggawulung Urban Forest Area Oktarina Maulidia; Septian Faris Al Amin; Yossi Dharma; Mhd Muhajir Hasibuan; Shinta Nur Rahmasari
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i4.9905

Abstract

The Ranggawulung Urban Forest represents a critical green open space with substantial potential for biodiversity conservation within an urban context. This study aims to characterize the vegetation community structure and assess the conservation status of recorded plant species. Vegetation inventory was conducted using a quantitative approach based on growth stages at two sites: the Urban Forest Block and the Camping Ground Area. The analyses included the Important Value Index (IVI), Shannon-Wiener diversity index (H’), Margalef spesies richness index (Dmg), and evenness index (E). The analysis of species composition and structure revealed distinct patterns in the distribution of the IVI across locations and growth stages. Swietenia mahagoni demonstrated the highest IVI at the seedling growth stage within the urban forest block, as well as at the tree growth stage within the camping ground area. In contrast, within the urban forest block, Maesopsis eminii exhibited the highest IVI at the tree growth stage. Furthermore, in the camping ground area, Cyperus rotundus attained the highest IVI at the seedling and understory vegetation strata. The Shannon-Wiener diversity index (H’) in Ranggawulung Urban Forest indicates that the seedling and understory vegetation strata exhibit higher species diversity compared to the tree strata. The highest H’ value was recorded in the seedling and understory vegetation of the camping ground area (3.5), whereas the lowest was observed in the tree stratum of the camping ground (2.83). The species richness index (Dmg) displayed a similar pattern, with the highest value found in the seedling and understory vegetation of the camping ground (10.42) and the lowest in the tree stratum of the urban forest block (5.22). Meanwhile, the evenness index (E) was relatively high across all categories, peaking in the tree stratum of the urban forest block (0.93), indicating the most balanced distribution of individuals among species in this category. Four species were classified as thteatened acording to the IUCN Red List and CITES Appendices. These findings fulfill the study objectives and underscore the ecological value of the Ranggawulung Urban Forest as a biodiversity refuge, highlighting the need for sustained conservation actions and ecologically informed urban forest management.
ASSESSMENT OF BIOMASS, CARBON STOCK, AND CO₂ SEQUESTRATIONIN THE ARBORETUM OF INSTITUT TEKNOLOGI SUMATERA Nurika Arum Sari; Fakhri Muhammad Fikri; Agung Yoga Pangestu; Diyanti IsnaniSiregar; Oktarina Maulidia
Jurnal Penelitian Kehutanan BONITA Vol. 8 No. 1 (2026): JUNI 2026
Publisher : Universitas Andi Djemma Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55285/wf8rvx69

Abstract

Global warming driven by rising greenhouse gas emissions has heightened the need to utilize green spaces as carbon sinks, one of which is the arboretum. This study aimed to determine the potential biomass, carbon stock, and CO₂ uptake of the vegetation in the Arboretum of Institut Teknologi Sumatera (Itera). A combination of destructive and non-destructive methods was applied across 12 plots representing three levels of vegetation density: high, medium, and low. The analysis covered biomass, carbon stock, and estimated CO₂ uptake. The results showed an average biomass of 50.51 tons/ha, a carbon stock of 23.74 tons/ha, and CO₂ uptake of 85.82 tons/ha. The highest values were found in the high-density vegetation area, which had a denser tree population. This study provides baseline carbon stock data for a developing campus arboretum in Sumatra, and concludes that, although the carbon stock of the Itera Arboretum remains lower than that of other arboreta, it nonetheless holds potential as a carbon sink that contributes to climate change mitigation. Practically, these results imply that arboretum management must prioritize intensive enrichment planting in low-density zones and establish permanent monitoring plots to optimize long-term carbon sequestration. 
Evaluasi Kesejahteraan dan Kesehatan Satwa Liar yang Diperdagangkan di Bandar Lampung Mhd Muhajir Hasibuan; Agung Yoga Pangestu; Oktarina Maulidia; Rizki Kurnia Tohir; Astri Aulia Suwanda; Dhinta Aurellia Sanjaya; Fajar Aditya Julyatmojo; Muhammad Hafidz; Ruben Josafat Sadatua Hutahaean; Yasyafri Evo
Wana Lestari Vol 6 No 2 (2024): Wana Lestari
Publisher : Program Studi Kehutanan, Fakultas Pertanian, Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/wanalestari.v6i2.19908

Abstract

Indonesia known for its high biodiversity, is home to various species of wildlife, with 17% of the world's wild animals found in its territory. However, this wealth makes Indonesia one of the major suppliers of both legal and illegal wildlife trade, which threatens conservation efforts. This study aims to identify the potential of wildlife trade, health factors, and the welfare of traded animals. Conducted in Bandar Lampung in February 2022, the research employed direct observation through structured interviews with pet shop owners, as well as document studies. The findings indicate that despite a post-pandemic decline, wildlife trade in the region still holds significant potential. Health factors, such as mouth ulcers in pythons and metabolic diseases in geckos, pose major challenges, although adequate care is provided in these shops. Animal welfare remains a critical concern, as dependence on wild-caught animals from the wild threatens their sustainability. This study emphasizes the importance of implementing sustainable management practices and adhering to existing regulations to ensure the continuity of wildlife trade in Indonesia
Co-Authors Agung Yoga Pangestu Astri Aulia Suwanda Dhinta Aurellia Sanjaya Diyanti IsnaniSiregar Fajar Aditya Julyatmojo Fakhri Muhammad Fikri Mhd Muhajir Hasibuan Muhammad Hafidz Nurika Arum Sari Ruben Josafat Sadatua Hutahaean Septian Faris Al Amin Shinta Nur Rahmasari Tohir, Rizki Kurnia Yasyafri Evo Yossi Dharma