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All Journal Jurnal Natural Gunung Djati Conference Series Agricultural Revolution Journal
Hasni Ruslan
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FLUKTUASI KELIMPAHAN DAN KERAGAMAN KUPU-KUPU (PAPILIONOIDEA) DI HUTAN KOTA ARBORETUM CIBUBUR JAKARTA Hasni Ruslan; Christian Flo Ryan; Danang Musyafa; Dimas Mulya
Jurnal Natural Vol. 18 No. 1 (2022): Jurnal Natural
Publisher : FMIPA Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jn.v18i1.168

Abstract

The Arboretum City Forest is located in Cibubur, East Jakarta, in this area there is biodiversity, one of which is butterflies. Butterflies act as an indicator of environmental change, in a habitat. There are two types of habitats in this urban forest, open and closed habitats, which greatly affect the diversity of butterflies. This study aims to determine the diversity of butterflies in the two habitats. The research was conducted in May 2021. The method used was a quantitative descriptive method, and the plot was carried out by purposive sampling. The study was carried out 4 times in each habitat (3 plots), with an interval of 1 week of observation. The research was conducted from 08:30 to 12:30, using insect nets and digital cameras. The number of butterflies found in open habitats was more (39 species, 177 individuals) than in closed habitats (25 species. 94 individuals). Based on, and the diversity of butterflies found shows a significant correlation with habitat conditions. In open forest habitats it is more suitable for butterflies. This difference is strongly influenced by the environmental conditions of the habitat, especially light, and plant diversity.
KEANEKARAGAMAN KUPU-KUPU DI HUTAN KOTA SRENGSENG DAN RAGUNAN PADA HABITAT DAN WAKTU YANG BERBEDA Hasni Ruslan; Imran SL Tobing; Tatang Mitra Setia; Sumayyah; Dimas Mulya Pratama
Gunung Djati Conference Series Vol. 59 (2025): Prosiding Seminar Nasional Biologi (SEMABIO) ke-10 Tahun 2025
Publisher : UIN Sunan Gunung Djati Bandung

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Abstract

Hutan kota Ragunan dan Srengseng merupakan ruang hijau terbuka yang terdiri dari berbagai habitat yang menyediakan habitat bagi komunitas kupu-kupu. Tujuan dari penelitian ini adalah untuk mengetahui perbedaan keanekaragaman kupu-kupu di hutan kota Ragunan dan Srengseng di tahun yang berbeda. Penelitian ini dilakukan di hutan kota Ragunan (tahun 2014 dan 2025) dan Hutan Kota Srengseng (tahun 2014 dan 2025). Pengamatan dilakukan dengan metode purposive sampling. Masing – masing hutan kota dibagi menjadi tiga stasiun yang berbeda, terdiri dari 2 plot (50 x 50 m), dan dilakukan pengulangan sebanyak 3 kali pada masing – masing plot dengan interval 1 minggu menggunakan sweeping net dan kamera. Terjadi penurunan jumlah individu dan kenaikan jumlah spesies di hutan kota Ragunan, sedangkan di hutan kota Srengseng terjadi kenaikan jumlah individu dan jumlah spesies. Indeks Nilai Penting (INP) tinggi di hutan kota Ragunan ditemukan sama pada tahun 2014 dan 2025: Zizina otis, Hypolimnas bolina, Delias hyparete, Eurema hecabe, Leptosia nina, sedangkan di hutan kota Srengseng terdapat perbedaan. Pada tahun 2014, kupu-kupu dengan INP tinggi: Hypolimnas bolina, Papilio demoleus, Graphium agamemnon, Papilio memnon. Leptosia nina, dan tahun 2024: Polyura hebe, Eurema hecabe, Zizina otis, Delias hyparete, Neptis hylas. Kelimpahan relatif tinggi di hutan kota Ragunan pada tahun 2014 (subdominan 46%, dominan 42%) dan tahun 2025 (subdominan 64 %, dominan 10%). Di hutan kota Srengseng pada tahun 2014 kategori tertinggi subdominan 65% dan dominan 12%, dan tahun 2024 kategori tertinggi subdominan 63% dan dominan 10%, serta terdapat peningkatan kategori subreceden 2% tahun 2014 menjadi 7% di tahun 2024.
Increased Growth and Production of Chilli (Capsicum Frutescens L.) with The Addition of Biological Organic Fertilizer Yenisbar; Asmah Yani; Hasni Ruslan; Arief Wicaksono
Agricultural Revolution Journal Vol. 1 No. 2 (2025): Agricultural Revolution Journal
Publisher : CIB Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64570/agrivolution.v1i2.29

Abstract

Cayenne pepper (Capsicum frutescens L.) is a high-value horticultural crop, yet its productivity in Indonesia remains below potential despite increasing demand. Biofertilizers provide a sustainable approach to enhancing chili growth and yield, while reducing reliance on chemical fertilizers and preserving soil health. The purpose of this study was to determine the optimal dose and fertilization frequency of Beyonic StarT-mik organic biological fertilizer in enhancing the growth and production of chili (Capsicum frutescens L.). The experiment was conducted from April to December 2020 at the Greenhouse, Faculty of Agriculture, Universitas Nasional, Bambu Kuning, Pasar Minggu, South Jakarta. A factorial Completely Randomized Design (CRD) was employed with two treatment factors, namely fertilizer dose (D0 = control, D1 = 10 ppm, D2 = 20 ppm, D3 = 30 ppm, and D4 = 40 ppm) and fertilizer application frequency (F1 = once a week and F2 = once every two weeks). Observed variables included plant height, stem diameter, dichotomous height, fruit length, fruit diameter, fruit weight per plant, and fruit number per plant. Data were analyzed using analysis of variance (ANOVA) followed by Duncan’s Multiple Range Test (DMRT) at a 5% significance level. The results showed that the highest plant height was obtained at a dose of 30 ppm, while the greatest stem diameter and dichotomous height were achieved at 40 ppm with weekly application. Optimal fruit length, diameter, and fruit weight per plant were recorded at a dose of 40 ppm, whereas the highest fruit number and overall yield were observed at 30 ppm, indicating that moderate fertilizer doses are more effective in optimizing chili productivity. This study is essential to establish scientifically sound fertilization strategies, as improper dosage and application frequency of bio-organic fertilizers can reduce yields and hinder sustainable chili production.
Co-Authors Arief Wicaksono Asmah Yani Christian Flo Ryan Danang Musyafa Dimas Mulya Dimas Mulya Pratama Imran SL Tobing Sumayyah Tatang Mitra Setia Yenisbar