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All Journal Jurnal Biologi Tropis Jurnal Pengabdian Magister Pendidikan IPA Jurnal Ilmiah Profesi Pendidikan Journal of Classroom Action Research BIOCHEPHY: Journal of Science Education Jurnal Pijar MIPA
Ilhamdi, Mohammad Liwa
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Education Immunology & microbiology Mathematics Physics Other

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Foraminifera Community Structure in Gili Kapal, Sambalia District, East Lombok as A Learning Resource for Invertebrate Zoology Ariadi, Muhammad Rojiman; Santoso, Didik; Ilhamdi, Mohammad Liwa
Jurnal Biologi Tropis Vol. 24 No. 2b (2024): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i2b.8254

Abstract

Gili Kapal is a small island filled with sand. The sand on Gili Kapal is caused by coral fragments and shells of benthic Foraminifera which dominate. Foraminifera is a group of single-celled animals that belong to the Protozoa Phylum of the Class Sarcodina and can be used as bioindicators to determine various environmental changes in the ocean. This study aims to determine Foraminifera species and community structure in the form of species diversity index, species evenness index and dominance index of Foraminifera species in Gili Kapal, Sambalia, East Lombok. Sampling was carried out using a corer sampler made of PVC pipes with the Purposive Sampling method in January 2022. The species diversity index, species evenness index, and species dominance index were analyzed as part of the data for this study. According to the study's findings, there are five species across four genera and three families. Sequentially the Foraminifera species found were; Amphistegina radiata, Calcarina spengleri, Schlumbergerella neotetraedra, Schlumbergerella floresiana, and Sorites orbiculus. The species diversity index was 0.9 (low category), the species evenness index was 0.4 (low category), and the species dominance index was 0.6 (medium category). It can be concluded that, sequentially the constituents of the Foraminifera community on Gili Kapal are Amphistegina radiata, Calcarina spengleri, Schlumbergerella neotetraedra, Schlumbergerella floresiana, and Sorites orbiculus.
Community Structure of Phytoplankton in The Waters of Bagek Kembar Mangrove Ecosystem Essential Area, Sekotong, West Lombok Jamiyyah, Shafro' Khuluq; Japa, Lalu; Ilhamdi, Mohammad Liwa
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i1.8617

Abstract

The Bagek Kembar Essential Ecosystem Area (EEA) is one of the mangrove forest areas in Lombok Island. This mangrove forest area is managed and developed into an educational tourist attraction (Ecotourism) to know various types of mangroves. The existence of Bagek Kembar mangrove Ecotourism is very important to support the economic income of the surrounding community. The existence of these various activities will potentially affect the balance of the mangrove ecosystem and the biota that live in there. This study aims to determine the composition of phytoplankton species and the condition of their diversity in the waters of the Bagek Kembar Mangrove Essential Ecosystem Area, West Lombok. Descriptive exploratory research was the methodology used. A 20 µm plankton net was used to filter 100 L of water in order to sample phytoplankton. Formalin at a 4% concentration was then used to preserve the filtered water samples. Individual abundance, evenness, dominance, and the index of species diversity were computed in order to analyze the data. The findings revealed that there were five divisions and 84 phytoplankton species. The Bagek Kembar Mangrove Essential Ecosystem Area's waters had an average phytoplankton abundance of 2,770 ind/L. The species dominance index of phytoplankton was 0.192 (low category), the species evenness index of phytoplankton was 0.633 (evenly distributed), and the average phytoplankton species diversity index of 2.296 was categorized as moderate. According to the findings of this study, the phytoplankton community's stability in the waters of the Bagek Kembar Mangrove Essential Ecosystem Area fell into the medium range.
The Diversity of Butterflies in Narmada Park, West Lombok Regency Mirnawati, Mirnawati; Muhlis, Muhlis; Ilhamdi, Mohammad Liwa
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): in Progress
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i4.10534

Abstract

One of Indonesia’s biodiversity components is the insect group. Insects (Insecta) represent the largest group of animals, accounting for about one-quarter of all known animal species on Earth. Among them, beetles and butterflies are the most diverse, largely influenced by the availability of host plants as an energy source. This study aimed to determine the diversity, dominance, and evenness of butterfly species in Narmada Park, West Lombok Regency, and to explore their potential as enrichment material for Animal Ecology practicum. The research was conducted at two observation sites one dominated by flowering plants and the other by trees using a survey method with purposive sampling and a sweeping net technique. The results recorded 122 butterfly individuals comprising 13 species from four families: Nymphalidae, Lycaenidae, Papilionidae, and Pieridae. The Shannon-Wiener diversity index (H’) was 2.50937 (moderate category), Simpson’s dominance index (D) was 0.085595, and Pielou’s evenness index (E) was 0.978331. The measured environmental factors included temperature (31.7°C), humidity (67.5%), and light intensity (385 Cd). The moderate diversity and high evenness indicate a relatively stable habitat condition that supports the existence of butterflies in the area.
Co-Authors Abdul Syukur Agil Al Idrus Agil Al Idrus, Agil Al Ahmad Raksun Ahmad Raksun, Ahmad Alawiyah, Rita Alhafizin, M. Ariadi, Muhammad Rojiman Artyasa, I Putu Astria, Fitri Puji Astria Dadi Setiadi Didik Santoso DIDIK SANTOSO Fatima, Erma Gito Hadiprayitno Herayani, Lulu Hilmi, Masnayati I Gde Mertha Ilham Handika Jamiyyah, Shafro' Khuluq Karnan Karnan Khairuddin Kodri Madang, Kodri Kusuma, Anindita Suliya Hangesti Mandra Lalu Japa, Lalu LALU ZULKIFLI Lalu Zulkifli M. Yamin Medinah, Deayu Mitha Lailatul Mirnawati Mirnawati Muhlis Muhlis Ni Luh Putu Pebri Artayani . Nurkamfajriani Pebrianti, Hasita PRAPTI SEDIJANI, PRAPTI Renita, Octa Sabrina, Yolanda Safarina, Sabrina Muliawati Siti Istiningsih, Siti Suliati Suliati Syazali, Muhammad Tamanolies, Bentan Nuijie Wirajagat, Gde Cahyadi Yuli Novita Sari, Yuli Novita Yuliani Yuliani