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All Journal Jurnal Biologi Tropis Jurnal Pengabdian Magister Pendidikan IPA Jurnal Ilmiah Profesi Pendidikan Journal of Classroom Action Research Bioscientist : Jurnal Ilmiah Biologi 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 Social Sciences Other

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Journal : Jurnal Biologi Tropis

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Diversity of Soil Insects in The Aiknyet Natural Tourism Area, West Lombok Alhafizin, M.; Ilhamdi, Mohammad Liwa; Wirajagat, Gde Cahyadi
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
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.v25i3.9338

Abstract

Soil insects play a vital role in maintaining forest ecosystem functions, yet their diversity in Indonesian protected areas remains underexplored. This study aims to analyze the diversity, dominance, and evenness of soil insect communities in three habitat zones riparian, forest edge, and forest interior within Aiknyet Natural Tourism Forest, Lombok Barat. A descriptive quantitative approach was used, with data collected via pitfall traps and analyzed using Shannon-Wiener (H'), Simpson (C), and Pielou (E) indices. A total of 4,524 individuals representing 68 species, 31 families, and 9 orders were recorded. The riparian zone showed the highest diversity (H' = 3.41) and evenness (E = 0.83), while the forest interior had the highest dominance (C = 0.17) due to the prevalence of Hypoponera opaciceps. These findings indicate that high individual abundance does not necessarily equate to high biodiversity. The study concludes that habitat heterogeneity strongly influences soil insect community structure. Scientifically, the results highlight the need for habitat-based conservation strategies and support the use of soil insects as ecological indicators in tropical forest management.
Distribution Patterns of Soil Insects Across Microhabitat Types in Lemor Botanical Garden, East Lombok, Indonesia Suliati, Suliati; Artyasa, I Putu; Ilhamdi, Mohammad Liwa
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
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.v25i3.9427

Abstract

Soil insects play an important role as indicators of ecosystem balance, however information about soil insects especially the distribution patterns of soil insects across microhabitat in the Lemor Botanical Gardens is still limited. This research aimed to analyze the distribution patterns of soil insects across various types of microhabitats in the Lemor Botanical Garden. This type of research is descriptive exploratif where soil insect samples were taken using the pitfall traf method, soil drill and continued using berlese tullgren. Sampling was carried out for 3 repetitions at two stations, namely station 1 in the Ex Situ area and station 2 in the In Situ area of the Lemor Botanical Garden. Each station consists of 10 sampling plots where each plot consists of 3 microhabitats namely litter, soil surface and subsurface. The research data were analyzed using the Morisita Index. The results indicated that the distribution of soil insects showed variation across microhabitats: in the litter microhabitat, 14% of individuals exhibited a clumped distribution and 1% an uniform distribution; in the soil surface microhabitat, 32% were clumped and 2% uniform distributed; and subsurface microhabitats, 7%  were clumped and 1% uniform distributed. These findings suggest that the dominant distribution pattern of soil insects across all microhabitats is clumped followed by a lesser degree of uniform distribution. The research is expected to provide insights to the public regarding the distribution patterns of soil insects across various types of microhabitats in the Lemor Botanical Garden.
Species Diversity of Soil Insect in the Lemor Botanical Garden, East Lombok, Indonesia Sari, Yuli Novita; Artayasa, I Putu; Ilhamdi, Mohammad Liwa
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
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.v25i2.9438

Abstract

Soil insects play an important role as environmental indicator organisms, ecosystem balancers, and decomposers of organic matter. This study aims to determine the diversity of soil insects in the Lemor Botanical Garden, East Lombok. The diversity of flora and fauna in this area makes it suitable as a conservation site that also serves educational purposes. Sampling was conducted using pitfall traps, soil borers, and Berlese-Tullgren funnels at two stations: station 1 (ex situ) and station 2 (in situ). Data were analyzed using the Shannon-Wiener diversity index. The results showed that 44 species of soil insects were found, belonging to 11 orders and 23 families, with a total of 970 individuals. The most dominant species belonged to the family Formicidae, with 257 individuals. Overall, the soil insect diversity index on litter was H' = 1.778, on the soil surface H' = 2.265, and in the soil layer H' = 1.098. These results indicate that the diversity level of soil insects in the Lemor Botanical Garden is moderate and varies across habitat layers. This moderate diversity reflects a relatively stable ecosystem and supports the importance of Lemor Botanical Garden as a site for conservation and environmental education.
The Effect of Lemongrass Plant Extract (Cymbopogon nardus (L.) Rendle) on The Number of Fruit Flies (Bactrosera sp) Catches Sabrina, Yolanda; Sedijani, Prapti; Ilhamdi, Mohammad Liwa; Artayasa, I Putu
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
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.v25i3.9662

Abstract

Fruit flies (Bactrocera sp.) are important pests of horticultural crops because they can cause serious damage and reduce the selling value of the fruit. This study aims to determine the effect of lemongrass (Cymbopogon nardus) plant extract on the number of fruit fly catches and to determine the most effective concentration as a natural attractant. The study was conducted experimentally in a crystal guava plantation in Dasan Tapen Village, West Lombok, using a Randomized Block Design (RBD) with five treatments of lemongrass extract concentrations (0% - 60%) and three replications. Data were analyzed using one-way ANOVA and continued with the LSD test. The results showed that there were four species of fruit flies caught, namely Bactrocera dorsalis, B. carambolae, B. cucurbitae, and B. papayae, with a total of 671 individuals. The 60% concentration produced the highest number of catches (an average of 69), while the control without attractant did not produce any catches. Statistical analysis showed a significant effect between treatments (p < 0.05). It can be concluded that lemongrass ethanol extract has a significant effect on the number of fruit fly catches, and the highest concentration in this study (60%) is more effective than the concentration below it. The concentration of 60% has the highest capture compared to the concentration below it. The use of lemongrass as a natural attractant has the potential as an alternative to environmentally friendly pest control in an integrated agricultural system.
Diversity of Dragonfly in The Segenter Waterfall Ecotourism Area, Lombok Island Ilhamdi, Mohammad Liwa; Al Idrus, Agil; Zulkifli, Lalu; Santoso, Didik; Mertha, I Gde; Madang, Kodri; Alhafizin, M.
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): Oktober-Desember
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.v25i4.10396

Abstract

Dragonflies are a part of biodiversity that possess aesthetic value due to their colorful appearance, as well as ecological, environmental, ecotourism, and educational significance. Segenter Waterfall in West Lombok has a unique bio-ecological characteristic, as it provides a habitat for various interesting dragonfly species. This can be utilized as an object for ecotourism and a learning resource. The aim of this research was to analyze the diversity of dragonflies in Segenter Waterfall. The method used in this research was a survey method with an area exploration technique following predetermined transect lines based on observation results: the edge path, the middle path, and the watershed path. The sweeping net method was used to collect dragonflies that could not be identified in the field for further observation in the laboratory. The results showed that the highest species abundance was Orthetrum sabina (0.55) and the lowest was Anax guttatus (0.19). Meanwhile, the highest diversity index was found in the water path (2.96) and the lowest in the middle path (2.74). In conclusion, the diversity of dragonfly species varies across each observation path, with the highest order being the Water Path, followed by the Edge Path, and the lowest being the Middle Path in the Segenter Waterfall area, Lombok Island.
Diversity of Butterfly Species (Subordo Rhopalocera) in Kerandangan Natural Tourism Park as High School Biology Enrichment Material Alawiyah, Rita; Santoso, Didik; Ilhamdi, Mohammad Liwa
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): 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.v24i1.6613

Abstract

Butterflies belong to the order Lepidoptera and have the highest biodiversity in Indonesia. Butterflies have many important values in life, such as maintaining ecosystem balance and enriching biodiversity. Kerandangan Nature Tourism Park includes a butterfly habitat located in Kerandangan Hamlet, Senggigi Village, Batu Layar District, West Lombok Regency. The aim of this research is to determine the diversity of butterfly species in the Kerandangan Nature Tourism Park, West Lombok Regency as enrichment material for high school biology lessons. The method used was exploratory descriptive with 4 data collections in October-November 2023. Data collection used a survey method with a sweep net technique and followed three predetermined observation routes, namely the intensive use block, protected block and rehabilitation block. Next, the data was analyzed using the diversity index, dominance index and evenness index. The research results found 262 individuals consisting of 3 families (Papilionidae, Nymphalidae, Pieridae), from 23 species. The butterfly diversity index of 3,069 is included in the high category. The diversity index on the 3 routes is in the medium category, namely the intensive use block is 2.96, the protected block is 2.77, and the rehabilitation block is 2.75. Information related to the diversity of butterflies in the Kerangan Nature Tourism Park can be used as enrichment material in high school biology learning.
The Abundance of Rebon Shrimp in Labuan Sangoro Sumbawa District as supplement Material for Learning Invertebrate Zoology Renita, Octa; Karnan, Karnan; Ilhamdi, Mohammad Liwa
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): 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.v24i1.6654

Abstract

This study was intended to analyze the abundance of rebon shrimp in the Sangoro lagoons of Sumbawa Regency. This research was conducted in Labuan Sangoro, Sumbawa Regency, West Nusa Tenggara. There were three sampling sites we choosed in this research based on the habitat characteristics, namely seagras beds, coral rubble, and mangrove area. We implemented the swept area technique to collect samples using scoop net with 60 cm length, 20 cm width, and 0,5mm mesh size. Rapia ropes were pulled along 50 m for each transect line drawn perpendicular to the shoreline. next, four 10 m transect lines were drawn parallel to the shoreline. The sampling was done by pulling the scoop net along the line transect so that a volume of the scoop net was obtained. In addition, the number of individuals was counted in each 10 m transect line. This research showed that only one species of rebon shrimp found in reseach area, namely Acetes Intermedius. Among three sampling sites, the mangrove area has a highest abundance of shrimp (12506,7 ind/L), followed by seagrass beds area (12189,0 ind/L), and coral rubble area (5102,8 ind/L). It can be concluded that mangrove and seagrass beds are habitat mosly prefered by rebon shrimp.
The Analysis of Population Structure of Mud Crab (Scylla serrata) in The Mangrove Forest Area of Bagek Kembar, West Lombok Hilmi, Masnayati; Karnan, Karnan; Ilhamdi, Mohammad Liwa
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): 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.v24i1.6683

Abstract

Scylla serrata is one of the species included in the mangrove forest ecosystem which has high economic value for human life. Seeing that mud crabs have high economic potential both domestically and abroad with a fairly high level of demand and abundant availability of catches in nature, concerns arise about the condition of their population. This research aims to determine the population structure of mangrove crabs in the Bagek Kembar Mangrove Forest Area, West Lombok. The method used is purposive sampling. Sampling was carried out at 3 stations representing the entire research location area, namely on the seafront, in the middle and farthest from the arena facing the sea. Each station has its own characteristics. The distance between stations is 50 m. Each station is installed 6 folding trap with a distance between trap 10 m. The length, width, and high size are 50 cm, 30 cm, and 15 cm respectively. This tools are completed by 3 mm mesh size. The results of the research showed that the carapace length of male and female mud crabs that were mostly caught was in the 3 – 4.5 cm and 2.5 – 4.0 cm classes. The carapace width of male and female mud crabs most often caught is in the range of 4.4 – 6.5 cm and 3.5 – 5.5 cm. And the weight of the most commonly caught male and female mud crabs was in the class range of 11.39 – 111.5 grams and 13.77 – 74.5 grams. This research concludes that mangrove crabs that live in the Bagek Kembar Mangrove Forest Area, West Lombok, based on gender, carapace length, carapace width and body weight, are dominated by juveniles. Only a limited number reach catch size.
Diversity and Distribution Patterns of Dragonflies in The Region Bagek Kembar Ecotourism, Sekotong Pebrianti, Hasita; Ilhamdi, Mohammad Liwa; Yamin, M.
Jurnal Biologi Tropis Vol. 24 No. 2 (2024): April - Juni
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.v24i2.6732

Abstract

Dragonflies have an important role as environmental bioindicators, especially as indicators of the success of mangrove ecosystem restoration projects and their distinctive color has becomes an ecotourism attraction, so this research is important to do. This research aims to determine the diversity and distribution patterns of dragonflies in the Bagek Kembar Sekotong Mangrove Ecotourism area. This is an explorative descriptive study and was carried out between December 2023-January 2024. The research method used was catching dragonflies with insect nets following three transect paths along the river flow in the Bagek Kembar Sekotong Mangrove Ecotourism area. Analysis of species diversity data using the Shannon Wiener diversity index and calculation of the dragonfly distribution pattern index using the variance test. Based on the research results, 9 species of dragonflies were obtained, including 8 species of dragonflies (Anisoptera) and 1 species of dragonflies (Zygoptera). The diversity index (H') of dragonflies at the observation location is 1,866. The conclusion is that diversity of dragonflies at the research location is in the medium category. The distribution pattern of dragonflies at the research location shows that one Potamarcha congener species has a regular distribution pattern and the other 8 species that had groups distribution pattern.
Structure of Fish Communities Results of Fishermen's Catches in The Waters Around Mangroves on The Coast Lembar of West Lombok Medinah, Deayu Mitha Lailatul; Syukur, Abdul; Ilhamdi, Mohammad Liwa
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
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.v24i3.7183

Abstract

Fish have an important role as an ecological and economic function. This research aims to determine the structure of the fish community based on fishermen's catches in the waters around the coastal mangroves of West Lombok. Data collection uses survey and observation methods. Next, data analysis of fish diversity values ​​used the Shannon-Wiener Index (H'), Uniformity Index (E), and Dominance Index (D). The results of this research have found 40 species, consisting of 5,012 individuals in 20 families. Furthermore, the fish species that has the highest number of individuals is Nemipterus Marginatu (0.144%) of the total number of individuals. Meanwhile, the fish species with the lowest number of individuals is Neotygon Kuhlii (0.01%). The value (H') of fish species in landings in the northern part is higher with a value (H') of 2.946, while in landings in the southern part it is 2.839, and the uniformity index (E) of fish in the northern part is 0.074, while landings in the southern part are 0.074. 0.024, Meanwhile the Fish Dominance Index (D) in the northern part is smaller with a value of 0.071 compared to landings in the southern part of 0.084. Conclusion of research on the structure of fish communities in waters around mangroves with the composition of the most Nemipterus Marginatu species and the least Neotygon Kuhlii. The level of fish species diversity is in the medium category with the level of uniformity and dominance also in the medium category.
Co-Authors Abdul Syukur Agil Al Idrus Agil Al Idrus, Agil Al Agustini, Putu Linda Ahmad Raksun Ahmad Raksun, Ahmad Aini, Jannatul Alawiyah, Rita Alhafizin, M. Ariadi, Muhammad Rojiman Artyasa, I Putu Astria, Fitri Puji Astria Baiq Sri Handayani Dadi Setiadi DIDIK SANTOSO Didik Santoso Fatima, Erma Gito Hadiprayitno Herayani, Lulu Heru Setiawan Hilmi, Masnayati I Gde Mertha I Wayan Merta Ilham Handika Jamiyyah, Shafro' Khuluq Karnan Karnan Khairuddin Kodri Madang, Kodri Kusuma, Anindita SHM Kusuma, Anindita Suliya Hangesti Mandra Lalu Japa, Lalu Lalu Zulkifli LALU ZULKIFLI M. Yamin Mashudi, Alfi Medinah, Deayu Mitha Lailatul Mirnawati Mirnawati Muhlis Muhlis Ni Luh Putu Pebri Artayani . Nopitasari Nurkamfajriani Nurlelah Pebrianti, Hasita PRAPTI SEDIJANI, PRAPTI Renita, Octa Rizki, Baiq Febrian Sari Sabrina, Yolanda Safarina, Sabrina Muliawati Sakaroni, Rubiyatna Siti Istiningsih, Siti Suliati Suliati Syazali, Muhammad Tamanolies, Bentan Nuijie Utami, Rizki Tania Wirajagat , Cahyadi Wirajagat, Gde Cahyadi Yuli Novita Sari, Yuli Novita Yuliani Yuliani