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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Jurnal Penelitian Hutan dan Konservasi Alam JURNAL BIOLOGI INDONESIA Forest and Society Buletin Poltanesa JURNAL HUTAN TROPIS Jurnal Ilmu Kehutanan Jurnal Penelitian Kehutanan Wallacea
Satyawan Pudyatmoko
Jurusan Konservasi Sumberdaya Hutan, Fakultas Kehutanan Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Environmental Science Social Sciences

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Analysis Distribution Patterns and Correlation of Ecological Characteristics Affecting the Existence of the Maleo Birds (Macrocephalon maleo) in Central Sulawesi, Indonesia: Distribution and Ecological Drivers of Maleo in Central Sulawesi Abd. Karim , Wahyudin; Hadisusanto, Suwarno; Wibawaning Astuti, Raden Roro Upiek Ngesti; Pudyatmoko, Satyawan
Journal of Tropical Life Science Vol. 16 No. 01 (2026)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.16.01.08

Abstract

Macrocephalon maleo is an endemic bird species of Sulawesi that selects nesting sites based on specific environmental conditions, particularly optimal soil temperature, moisture, water content, soil weight, and texture (including clay, dust, and sand composition). However, studies examining the relationship between soil physical characteristics and microclimatic factors across multiple nesting sites remain limited. This study aims to analyze the distribution patterns and the correlation of ecological characteristics that influence the existence of maleo in Central Sulawesi. The research was conducted from February 2024 to March 2025 at seven locations with a total of 23 coordinate points, including nesting grounds near geothermal sources (Saluki, Lore Lindu National Park), coastal areas (Taima, Moilong, Batui, Ampana, and Balingara), and a riverbank area (Bukit Jaya). Field observations were carried out for 10 days at each location, during which 197 maleo birds were recorded. Maleo distribution patterns were analyzed using the Morisita Index, while the relationships between ecological factors and maleo presence were assessed using Pearson correlation analysis. The Morisita Index indicates a clumped distribution pattern, with values ranging from 2.0 to 5.0. The average sand temperatures recorded were 33.9°C in the geothermal area (Saluki TNLL); 35.0°C, 34.4°C, 35.4°C, 33.13°C, and 32.9°C in the coastal areas (Taima, Moilong, Batui, Ampana, and Balingara), and 36.1°C in the riverbank area (Bukit Jaya). The results indicate that soil-related ecological factors, particularly water content, soil texture, and sand weight, had a stronger influence on maleo presence than ambient microclimatic variables such as air temperature, humidity, wind speed, and light intensity. Soil texture influences water retention, aeration, heat absorption, and soil consistency. Sandy soils tend to absorb and release heat efficiently, thereby creating suitable incubation conditions for maleo eggs in natural nesting habitats.
Co-Authors . Subeno Abd. Karim , Wahyudin Abd. Rasyid Syamsuri Ai Yuniarsih Ai Yuniarsih, Ai Alexander Markus Moßbrucker Arif Budiman Astri Winda Siregar Astuti, Raden Roro Upiek Ngesti Wibawaning Diah Irawati Dwi Arini Diyah Kartikasari Djoko Marsono Djoko Marsono Erny Poedjirahajoe Hadi Sofyan Kayat Kayat Lies Rahayu Wijayanti Faida Mahfut Sodik Muchammad Maksum Muhammad Ali Imron Muhammad Ali Imron Novianto Bambang Wawandono Nurvianto, Sandy Nurvianto, Sandy Peter-Hinrich Pratje Pratita Puradyatmika, Pratita Pri Utami Qurrotu Ayunin Qurrotu Ayunin, Qurrotu Ronggo Sadono Setyadi, Esti Gesang Sirami, Elieser Viktor Subarkah, M. Hari Subarkah, M. Hari Sumardi Sumardi Suwandi, Rendy Enggar SUWARNO HADISUSANTO Syawal, Arni Wanda Kuswanda Wawandono, Novianto Bambang Wawandono, Novianto Bambang Yuwono, Pujo Semedi Hargo