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All Journal Journal of Engineering, Technology, and Applied Science (JETAS) Igya ser hanjop: Jurnal Pembangunan Berkelanjutan
Dimara, Petrus Abraham
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics

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Dinamika Populasi Sagu (Metroxylon sagu Rottb) pada Berbagai Tipe Habitat di Daerah Aliran Sungai (DAS) Sentani Kabupaten Jayapura, Papua Dimara, Petrus Abraham; Auri, Amilda; Runtuboi, Yubelince Y.
Igya ser hanjop: Jurnal Pembangunan Berkelanjutan Vol 6 No 1 (2024)
Publisher : Badan Penelitian dan Pengembangan Provinsi Papua Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47039/ish.6.2024.43-55

Abstract

Pohon sagu dapat dimanfaatkan untuk ketahanan pangan lokal. Penelitian ini mengkaji komposisi dan struktur sagu Metroxylon sagu Rottb. di daerah DAS Sentani. Metode yang digunakan dalam penelitian ini adalah analisis vegetasi dengan menggunakan Indeks Keanekaragaman Simpson. Diketahui komposisi tanaman sagu di DAS Sentani didominasi oleh tiga belas varietas sagu lokal. Karakteristik Metroxylon sagu Rottb. di habitat kering ditemukan 10 varietas dengan nilai Indeks Keanekaragaman Simpson 0,85 dan kemerataan 0,94; pada habitat tergenang sementara ditemukan 13 varietas. Rumpun sagu pada habitat tergenang memiliki rata-rata tutupan tertinggi (161,43 m2) atau rumpun sagu seluas 14 meter, sedangkan pada habitat kering mempunyai rata-rata tutupan terendah 116,58 m2) atau rumpun sagu berdiameter 12 meter. Dengan menghitung Indeks Nilai Penting (INP) pada seluruh wilayah pengamatan, diketahui bahwa phara dan yebha mempunyai nilai tertinggi, sedangkan INP terendah terdapat pada varietas wani, phane, yakhe, yakhalobe, hobholo dan osukhulu.
WebGIS-Based Birdwatching Ecotourism Planning in Kwau Village Reski, Dian; Sumendap, Andreas Leonardo; Dimara, Petrus Abraham
Journal of Engineering, Technology, and Applied Science (JETAS) Vol 7 No 3: December 2025
Publisher : Lamintang Education and Training Centre, in collaboration with the International Association of Educators, Scientists, Technologists, and Engineers (IA-ESTE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36079/lamintang.jetas-0703.954

Abstract

Ecotourism development in Kwau Tourism Village remains limited due to the absence of systematic spatial mapping and insufficient accessible information regarding bird distribution, despite the area’s rich diversity of endemic species and strong potential for bird-watching activities. The main problem lies in the lack of integrated ecological data that can support informed planning and sustainable ecotourism management. This study offers a solution by combining spatial and non-spatial ecological information to produce a comprehensive decision-support system. The research applies field-based GPS mapping of bird observation points, hotspot analysis, and documentation of temporal behavioral patterns such as feeding and lekking activity. All datasets were processed in ArcGIS and incorporated into an interactive WebGIS platform designed to assist tourism managers, local communities, and visitors in understanding spatial patterns and planning ecotourism activities more effectively. The findings show that bird distribution is concentrated in forest zones with low human disturbance and stable canopy structure, with peak activity occurring in the morning and late afternoon, providing optimal viewing opportunities. Accessibility assessments also indicate that trekking routes vary in difficulty depending on terrain and elevation. Overall, this study contributes a replicable model for GIS-supported bird-based ecotourism that strengthens destination management and enhances visitor preparedness through integrated ecological information.
Co-Authors Auri, Amilda Reski, Dian Sumendap, Andreas Leonardo Yubelince Runtuboi