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All Journal HAYATI Journal of Biosciences The Journal of Experimental Life Sciences (JELS) Jurnal Pengabdian Magister Pendidikan IPA
Khowatini, Husnul
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Immunology & microbiology Medicine & Pharmacology Neuroscience

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Sustaining Biodiversity and Ecological Roles in a Heritage Landscape: The Role of Coffee Agroforestry in Kluncing, Indonesia Kurnianto, Agung Sih; Dewi, Nilasari; Sulistyowati, Hari; Siddiq, Arif Mohammad; Ratnasari, Tri; Khowatini, Husnul; Yulianto, Roni; Firdaus, Anggun Sausan
HAYATI Journal of Biosciences Vol. 32 No. 2 (2025): March 2025
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.32.2.459-471

Abstract

This study investigates the role of coffee agroforestry in sustaining biodiversity and ecosystem functions in Kluncing, Ijen, Indonesia. By quantifying bird, butterfly, and coffee insect diversity using the Shannon-Wiener index, it evaluates ecological dynamics and their implications for sustainable land management. Bird communities demonstrated the highest diversity (2.911), indicating ecosystem stability, while butterflies (2.481) and coffee insects (1.841) exhibited lower diversity, reflecting habitat and resource limitations. Trophic network modeling using NetworkX identified keystone species like Collocalia linchi (21.9% relative abundance) among birds and the Formicidae family (29.8% relative abundance) among coffee insects, emphasizing their critical roles in ecosystem balance. Canonical Correspondence Analysis (CCA) highlighted the influence of environmental factors on species distribution. Species such as Ariadne ariadne and Delias belisama were sensitive to humidity and temperature, while Collocalia linchi favored areas with higher light intensity. The findings underscore the importance of tailored management practices to address species-specific responses to microclimatic variations. Sustainable agroforestry management is vital for preserving biodiversity, maintaining ecosystem stability, and ensuring agricultural productivity. This study also highlights challenges posed by habitat degradation and climate change, emphasizing the need for adaptive strategies to safeguard this unique agroforestry landscape.
Analysis of Bird Vocal Bandwidth in Relation to Vegetation Structure Variability in Coffee Agroforestry Systems, Jember, Indonesia Kurnianto, Agung Sih; Dewi, Nilasari; Haryadi, Nanang Tri; Khowatini, Husnul; Lestari, Ayu; Lestari, Auralia Sakinah; Efendi, Galang Prasetyo; Hanafi, Ahmad Rifqi A.; Kadafi, Ahmad Muammar
HAYATI Journal of Biosciences Vol. 32 No. 3 (2025): May 2025
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.32.3.781-792

Abstract

Bird vocalizations are crucial for communication and adaptation to environmental changes. As forests are converted to agriculture, agroforestry plays a key role in conserving biodiversity. This study examines vocal bandwidth variations in four bird species-Common Tailorbird (Orthotomus sutorius), Sooty-headed Bulbul (Pycnonotus aurigaster), Olive-backed Sunbird (Cinnyris jugularis), and Small Minivet (Pericrocotus cinnamomeus)-across three coffee agroforestry sites in Jember, Indonesia: Silo, Kluncing, and Kaliwining. The study explores how vegetation structure influences vocal adaptations using sound recordings, vegetation surveys, the Kruskal-Wallis test, and Pearson correlation analysis. Results show significant vocal bandwidth differences in Common Tailorbird and Sooty-headed Bulbul. Common Tailorbird exhibited the highest bandwidth variation in Silo (2.85 kHz), followed by Kluncing (2.30 kHz) and Kaliwining (1.10 kHz) (p<0.001). Similarly, Sooty-headed Bulbul showed significant variation, with the highest bandwidth in Silo (3.1 kHz), Kaliwining (3.5 kHz), and Kluncing (2.7 kHz) (p<0.001). However, bandwidth variation in Olive-backed Sunbird (p = 0.12) and Small Minivet (p = 0.0014) was not significant. Pearson correlation analysis indicated a strong but non-significant relationship between vegetation structure (Importance Value Index) and Sooty-headed Bulbul presence (R² = 0.8999, p = 0.059). These findings suggest that while vegetation influences some species, other factors like resource availability or human activity may also shape vocal adaptations. This study enhances understanding of bird communication in agroforestry, supporting biodiversity conservation and sustainable land management.
Pelatihan Pembuatan Pestisida Nabati sebagai Solusi Pengendalian Hama dan Penyakit Tanaman Cabai di Desa Panduman Kecamatan Jelbuk Kabupaten Jember Khowatini, Husnul; Maulida, Zulfa; Rahayu, Puji; Utami, Ratih Apri
Jurnal Pengabdian Magister Pendidikan IPA Vol 6 No 4 (2023): Oktober-Desember 2023
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v6i4.5826

Abstract

Panduman Village has abundant natural resource potential, fertile land, and the majority of people work as farmers, thus supporting this village as one of the contributors to agricultural products in the form of chili commodities in Jember Regency. The productivity of chilies (Capsicum annum L.) often experiences a decline in productivity due to attacks by pests such as thrips, whitefly (Bemisia tabaci), and yellow virus or Pepper Yellow Leaf Curl Indonesia Virus (PYLCIV). Alternative control that can be carried out by farmers is the application of vegetable pesticides, which are not only economical and easy to obtain, but can also reduce pest resistance rates and chemical residues. The methods used in this activity are socialization, training and evaluation which are carried out in the form of pretest-posttest. The result was that 100% of participants understood the material and training that had been provided and were interested in and supported the sustainability of this training programs.
The Influence of Shade Tree Diversity on Natural Enemy Communities and Microclimate in Coffee Agroforestry Systems Dewi, Nilasari; Kurnianto, Agung Sih; Haryadi, Nanang Tri; Rosita, Mitayuni Faur; Guretno, Titus Krido; Febrianti, Wanda Hamidah Zakiyah; Khowatini, Husnul; Priambodo, Bagus
The Journal of Experimental Life Science Vol. 15 No. 3 (2025)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jels.2025.015.03.04

Abstract

Coffee agroforestry is an integrated farming system that combines coffee cultivation with the planting of shade trees. While it is well-established that vegetation diversity can support populations of natural enemies, few studies have investigated how varying levels of vegetation diversity interact with microclimatic conditions to influence insect community dynamics. Conducted in Desa Pace, Jember, East Java, the research compares simple and complex agroforestry systems in terms of their vegetation structure and the resulting impacts on natural enemy diversity. Field sampling was carried out in May, July, and September using yellow pan traps, accompanied by microclimatic measurements. Results revealed that the simple agroforestry had greater vegetation diversity. However, the Shannon-Wiener Index for vegetation was 0.94 in the complex system and 0.56 in the simple system, while the diversity of natural enemies was identical (1.70) in both systems. Microclimatic factors played a key role, with the simple having higher humidity and the complex exhibiting higher temperatures. These findings underscore that higher vegetation diversity does not always correspond to increased diversity among natural enemies, pointing to the influence of other ecological and environmental factors in shaping these communities. The study highlighted the importance of selecting appropriate shade vegetation to support sustainable and climate-resilient coffee agroforestry systems.
Co-Authors Agung Sih Kurnianto Ahmad Muammar Kadafi Arif Mohammad Siddiq AYU LESTARI Bagus Priambodo Dewi, Nilasari Efendi, Galang Prasetyo Febrianti, Wanda Hamidah Zakiyah Firdaus, Anggun Sausan Guretno, Titus Krido Hanafi, Ahmad Rifqi A. Hari Sulistyowati Lestari, Auralia Sakinah Maulida, Zulfa Nanang Tri Haryadi Puji Rahayu Ratih Apri Utami Ratnasari, Tri Rosita, Mitayuni Faur Yulianto, Roni