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Muhammad Rizaldi Trias Jaya Putra Nurdin
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INDONESIA
Indonesian Journal of Ecology and Conservation
Published by Universitas Sulawesi Barat
ISSN : -     EISSN : 30475392     DOI : https://doi.org/10.31605/ijec
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science
Indonesian Journal of Ecology and Conservation is a journal published in 2024 by the Center for Ecology, Conservation, and Ethnobiology Studies at the Universitas Sulawesi Barat, Indonesia. The establishment of this journal is driven by the importance of recognizing the diversity of flora and fauna in Indonesia, particularly on the island of Sulawesi. The geographical uniqueness of this island, separated from the continents of Asia and Australia, has allowed for the evolution of different species and is a primary cause of its biodiversity richness. This aspect is certainly attractive for research by various groups, and the Indonesian Journal of Ecology and Conservation serves as an appropriate platform for accessing and publishing research findings in the fields of ecology, conservation, molecular, systematic, and evolutionary studies
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ekologi
Articles 53 Documents
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Water Quality Analysis Based on Macroinvertebrate Diversity and Physicochemical Parameters of the Lembo River, Lembo Subdistrict, Lembo District, North Konawe Regency Ade Naranda Qatrunnada; Kahirun Kahirun; La Ode Muhammad Erif; La baco Sudia; Asramid Yasin; Ema Hermawati Garusu; Surya Cipta Ramadhan Kete
Indonesian Journal of Ecology and Conservation Vol. 3 No. 2 (2026): Ecology and Biodiversity Conservation
Publisher : Center for Ecology, Conservation and Ethnobiology Studies, Universitas Sulawesi Barat

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Abstract

The presence of land use around the river can affect river water quality. Various land uses such as forests, secondary forests/shrubs, mixed gardens and settlements accompanied by various activities such as plantations, washing, bathing, and sand excavation can affect river health because it can change the value of water parameters to biodiversity habitat. This study aims to determine the macroinvertebrate diversity of Lembo River, the value of water physico-chemical parameters of Lembo River and the water quality of Lembo River based on macroinvertebrate bioindicators and water physico-chemical properties. The method in this study uses the Shannon-Weinner diversity index and familiy biotic index for macroinvertebrate analysis, while the value of water physico-chemical parameters refers to Government Regulation No. 22 of 2021 concerning the Implementation of Environmental Protection and Management. The results of this study indicate that Station I with forest land use and secondary forest/shrub has a diversity index value of 1.53. Station II with mixed garden land use has a diversity index value of 1.13. Station III with residential land use has a diversity index value of 0.80. Based on macroinvertebrate bioindicators, the water quality of Lembo River is in the category of good water quality with the level of pollution polluted by some organic materials. Based on the analysis of the physico-chemical parameters measured, Lembo River water meets class II and class III water quality standards based on Government Regulation No. 22 of 2021
Soaking-Derived Pesticide from Bintaro Fruits (Cerbera manghas): A Potential Repellent for Rice-Eating Birds Muhammad Yusril Hardiansyah; Akhmad Zamroni; Andi Hurul Auni Usman; Phong Ngoc Trieu
Indonesian Journal of Ecology and Conservation Vol. 3 No. 2 (2026): Ecology and Biodiversity Conservation
Publisher : Center for Ecology, Conservation and Ethnobiology Studies, Universitas Sulawesi Barat

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Abstract

Bird pests represent a major constraint in rice cultivation, often causing significant yield losses due to their increasing population and feeding activity. Conventional control methods are limited, prompting exploration of plant-derived repellents as sustainable alternatives. This study investigated the effectiveness of pesticide formulations derived from Cerbera manghas (Bintaro) fruit extract in repelling rice-eating birds. The research was conducted in Tonasa Village, Takalar Regency, South Sulawesi, using a field-based spraying approach. Observations were recorded across morning, midday, and afternoon periods, comparing bird attack frequencies before and after treatment. Results demonstrated a marked reduction in pest activity: morning attacks decreased from 20–35 to 9–16, midday from 9–15 to 3–6, and afternoon from 22–33 to 9–15. These findings indicate that C. manghas fruit extract exhibits promising repellent properties, contributing to improved rice protection and potentially enhancing sustainable pest management strategies
Epifaunal Insects as Bioindicators of Soil Contamination in Post-Gold Mining Landscapes: A Case Study from Gunung Botak, Maluku, Indonesia Muhammad Rijal; Ain Nadirah Binti Romainor; Salma Samputri; Abu Bakar Lessy
Indonesian Journal of Ecology and Conservation Vol. 3 No. 2 (2026): Ecology and Biodiversity Conservation
Publisher : Center for Ecology, Conservation and Ethnobiology Studies, Universitas Sulawesi Barat

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Abstract

Gold mining can leave soils contaminated by heavy metals and alter soil biological communities. This study evaluated epifaunal insects as assemblage-level bioindicators of soil contamination in Gunung Botak, Maluku, Indonesia. Twenty sampling points were distributed across high, medium, low, and reference zones. Insects were collected using pitfall traps and Berlese-Tullgren funnels, while pH, moisture, organic matter, Pb, Cd, and Hg were analyzed using standard soil procedures and ICP-MS. Pb, Cd, and Hg were highest in the high-contamination zone. Total insect abundance was also highest in this zone (405 individuals), mainly due to dominant tolerant taxa. However, Shannon-Wiener diversity (2.01), Simpson index (0.81), and evenness (0.68) were lowest, indicating community homogenization. RDA showed that heavy metals were associated with community shifts, while more neutral pH and higher organic matter supported more diverse communities. Epifaunal insects are useful bioindicators when interpreted through diversity, dominance, and community composition rather than abundance alone.

Page 6 of 6 | Total Record : 53

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