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All Journal MEDIA KONSERVASI Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Majalah Geografi Indonesia Journal of Tropical Biodiversity and Biotechnology TREUBIA JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Jurnal Biodjati Jurnal Riset Biologi dan Aplikasinya Bioinformatics and Biomedical Research Journal Jurnal Sylva Lestari
Septiadi, Luhur
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Education Energy Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology

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The First Record of an Hourglass Toad (Leptophryne borbonica) in The Core Zone of Bromo Tengger Semeru National Park and Its Ecological Aspects Hanifa, Berry Fakhry; Fadhilah, Muhamad Aslam; Devi, Sandra Rafika; Hasyim, Muhammad Asmuni; Septiadi, Luhur
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 4 (2024): December
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.93938

Abstract

Leptophryne borbonica is an amphibian species known for its sensitivity to environmental changes. Within the expansive Bromo Tengger Semeru National Park (TNBTS), new occurrences of L. borbonica have been discovered for the second time in another region of TNBTS (core area in Ireng-Ireng Block, Lumajang). This research provides the newest finding of L. borbonica and insights into the habitat assessment and potential food preferences of L. borbonica within TNBTS. The methodology involved the examination of morphology and meristics in L. borbonica. Habitat assessment and potential food indicated stable values. However, continued vigilance is essential due to vulnerability to volcanic threats.
The Ecological Character of Water-Bioindicator Macroinvertebrates on Various Agricultural Management: Ecology of Water-Bioindicators in Agriculture kurnianto, Agung sih; Septiadi, Luhur; Hamidah, Wanda; Magvira, Nur Laila; Sholikah, Ummi
Journal of Tropical Life Science Vol. 14 No. 3 (2024)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.03.12

Abstract

In Indonesia, horticulture is a crucial part of agriculture, heavily reliant on agrochemicals. This study in East Java's Jember and Bondowoso regencies compared conventional and organic farming methods, focusing on their effects on aquatic macroinvertebrates as bioindicators. Research included sites practicing conventional horticulture (cabbage, chili) and organic rice farming. Measurements of water current, pH, conductivity, dissolved oxygen, and temperature were taken, along with macroinvertebrate sampling. Significant differences were found in pH, conductivity, and water current, but not in dissolved oxygen and temperature. Organic farming showed higher macroinvertebrate diversity and lower dominance, especially the Baetidae family. While BMWP-ASPT and EPT scores were similar across methods, organic farming rated unpolluted in biotilik scores. Hierarchical cluster analysis, PCA, and CCA revealed factors influencing the ecological impacts of farming practices. The study underscores how different agricultural methods affect macroinvertebrate diversity, highlighting their role as environmental indicators. This reflects the diverse ecological impacts of agricultural management practices.
Could Road Structures Impact the Avian Community? A Study Case from the South Coast Remained Forest in Malang Region, East Java Province, Indonesia: Impact of Road Structures on Avian Community Nurrofik, Agus; Hakim, Luchman; Septiadi, Luhur; Kurniawan, Nia
Journal of Tropical Life Science Vol. 14 No. 2 (2024)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.02.10

Abstract

The remaining tropical forest on the south coast of the Malang region is one of the secluded areas that served as an important habitat for its biodiversity, particularly for avians. Nevertheless, the presence of the road structure that crosses over the forest might impact avian communities, which needs to be investigated. The avian survey was conducted to investigate the diversity, community profiles, abundance, and feeding guild based on two different ecosystem patches (on the roads versus outside the road structures) during January–April 2022. The audiovisual encounter methods were performed during the surveys on a total of ten sampling points. Avian species were identified using field guides where the conservation status was based on the national regulation (P106 KLHK), CITES, and IUCN Redlist. The comparison through the avian community based on species richness was analyzed using Venn Diagrams and predicted using rarefaction and interpolation curves on INEXT packages. Additionally, the comparison of sizes of avian abundance was investigated using the α-diversity parameter index, and the feeding guild was determined by five diet guilds. In total, 2536 individuals from 67 species, 34 families, and 13 orders were found during the survey. The avian communities were richer outside the road structure, but their abundance qualitatively reveals that both different ecosystem patches showed relatively good condition. Overall, road structures generate both positive (unique habitat patches) and negative (physical barriers that could disrupt natural ecological processes) impacts on avian diversity. In light of these, sustainable management and conservation action plans were urgently needed to prevent the negative effects on avian communities posed by the road structure.
Pemantauan invasi mantangan (Merremia peltata) di Taman Nasional Bukit Barisan Selatan menggunakan Google Earth Engine Dzakiyyaa, Ruwaida; Darmawan, Arief; Santoso, Trio; Hilmanto, Rudi; Septiadi, Luhur; Surya, Rikha Aryanie
Majalah Geografi Indonesia Vol 39, No 2 (2025): Majalah Geografi Indonesia
Publisher : Fakultas Geografi, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/mgi.101697

Abstract

Abstrak Mantangan merupakan spesies yang secara masif menginvasi bagian selatan Taman Nasional Bukit Barisan Selatan (TNBBS) dan diperkirakan sebarannya semakin meluas. Mantangan tumbuh dengan cara melilitkan batangnya pada inang hingga menutupi permukaan tubuh dan tajuk inangnya serta dapat merambat dari satu inang ke inang yang lain, selain itu mantangan juga dapat tumbuh secara vegetatif melalui batangnya yang terpotong kemudian menyentuh tanah sehingga menghasilkan generasi baru. Oleh karena itu, informasi sebaran spasial mantangan perlu diketahui dengan pemantauan secara berkala. Dewasa kini, pemantauan dapat dilakukan dengan penginderaan jauh, misalnya menggunakan data citra satelit. Perkembangan Google Earth Engine (GEE) menjadi salah satu pilihan untuk pemantauan invasi mantangan. GEE menyediakan data citra satelit berbasis komputasi awan dan dapat menghasilkan citra satelit multitemporal yang bebas awan, sehingga menjadi solusi permasalahan big data serta tidak memerlukan biaya untuk penggunaannya. Penelitian ini bertujuan untuk mengetahui luas invasi mantangan tahun 2019 – 2023 menggunakan GEE. Penelitian dilakukan dengan menggunakan citra satelit, citra DEM, dan transformasi indeks EVI dengan algoritma random forest. Objek penelitian difokuskan pada daerah selatan TNBBS yang secara khusus terinvasi oleh mantangan yaitu pada empat resor diantaranya Pemerihan, Way Haru, Way Nipah, dan Tampang. Objek penelitian kemudian dijadikan sebagai area of interest (AOI). Hasil penelitian menunjukkan hasil akurasi yang baik dengan nilai 93,49% (user accuracy), 95,18% (producer accuracy), 95,23% (overall accuracy), dan 90,18% (kappa accuracy) pada kelas mantangan. Perubahan sebaran mantangan mencapai 7.374,89 ha (2019), 8.237,88 ha (2021), dan 8.716,84 ha (2023). Berdasarkan hasil, diketahui bahwa mantangan menginvasi lebih masif pada Resor Tampang dan Resor Way Haru yang disebabkan oleh kejadian masa lalu seperti pembukaan lahan dan kebakaran serta habitat yang sesuai untuk pertumbuhan mantangan.Abstract Mantangan is a species that has massively invaded the southern part of Bukit Barisan Selatan National Park (BBSNP) and is expected to expand its distribution. Mantangan grows by wrapping its trunk around the host until it covers the surface of the host's body and crown and can creep from one host to another, besides that mantangan can also grow vegetatively through its trunk which is cut and then touches the ground to produce a new generation. Therefore, information on the spatial distribution of mantangan needs to be known through regular monitoring. Nowadays, monitoring can be done by remote sensing, for example using satellite image data. The development of Google Earth Engine (GEE) is one option for monitoring mantangan invasion. GEE provides cloud computing-based satellite image data and can produce cloud-free, multitemporal satellite images, so it is a solution to the big data problem and does not require fees for its use. This study aims to determine the extent of mantangan invasion in 2019 – 2023 using GEE. The research was conducted using satellite images, DEM images, and EVI index transformation with random forest algorithm. The research object focused on the southern area of BBSNP which was specifically invaded by mantangan, namely in four resorts including Pemerihan, Way Haru, Way Nipah, and Tampang. The research object is then used as an area of interest (AOI). The results showed good accuracy results with values of 93.49% (user accuracy), 95.18% (producer accuracy), 95.23% (overall accuracy), and 90.18% (kappa accuracy) in the mantangan class. Changes in the distribution of challenges reached 7,374.89 ha (2019), 8,237.88 ha (2021), and 8,716.84 ha (2023). Based on the results, it is known that mantangan invaded more massively in Tampang Resort and Way Haru Resort due to past events such as land clearing and fires as well as suitable habitat for mantangan growth.  
Pteridophytes Diversity and Distribution Along The Elevational Gradient of Mount Penanggungan's Hiking Trail, East Java, Indonesia Hasyim, Muhammad Asmuni; Hanifa, Berry Fakhry; Septiadi, Luhur; Firdaus, Firman; Setya, Yudha; Mulyono, Rizki Mujahidin; Achmad, Caesar Rasendria; Haq, Mochammad Nur Izzul
Jurnal Biodjati Vol 8 No 2 (2023): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v8i2.24938

Abstract

Pteridophytes (ferns) are a fundamental element of tropical rainforests, which provide excellent microhabitats for their development. In addition, the sensitivity of pteridophytes to shifts in microclimate and anthropogenic disturbances makes them excellent environmental bioindicators. The purpose of this study was to determine the diversity and distribution of pteridophytes along the elevational gradient of two well-known hiking trails of Mount Penanggungan, East Java, Indonesia. Using a 10x10 m2 plot and transect line, we examined the composition, species diversity using Shannon-Wiener diversity index (H'), relative abundance, and distribution pattern using Morisita index of dispersion (Id) of ferns along an elevational gradient (700–1500 m above sea level) on the hiking trails of Mount Penanggungan, i.e., Tamiajeng and Kunjorowesi. As many as 14 species from 7 families living in both terrestrial and arboreal types were identified. Species composition along the elevation gradient revealed a pattern of predominating species. The Shannon-Wiener diversity index (H') indicated a moderate level of diversity, where many pteridophytes species are found on the altitude gradient between (700-900 m dpl), and the Morisita index of dispersion (Id) indicated a clustered distribution pattern for most of the species. This pattern of diversity and distribution can be explained by changes in biotic and abiotic factors.
Herpetofauna in Ranu Darungan and Blok Ireng-Ireng, Bromo Tengger Semeru National Park: Before-After the COVID-19 and Eruption Hanifa, Berry Fakhry; Aini, Quratul; Hasyim, Muhammad Asmuni; Septiadi, Luhur
Jurnal Sylva Lestari Vol. 12 No. 1 (2024): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v12i1.819

Abstract

The continuous eruption of the Bromo Tengger Semeru volcanic complex may have impacted the overall biodiversity in Bromo Tengger Semeru National Park, including amphibians and reptiles. On the other hand, restrictions on traveling during the COVID-19 pandemic may positively impact nature by minimizing the tourism-disturbance. This study analyzes the diversity of reptiles and amphibians before and after COVID-19 and Semeru eruption at Ranu Darungan and Blok Ireng-Ireng (utilization zone) of Bromo Tengger Semeru National Park during three continuous surveys (2019, 2021, and 2022). Preliminary sampling was conducted in August 2021, whereas extensive sampling was carried out in March–May 2022 using a visual encounter survey on two habitat conditions (terrestrial and aquatic); we used previous survey data for 2019. The continuous surveys in Ranu Darungan and Blok Ireng-Ireng showed the herpetofauna diversity consisting of 19 amphibian species (6 families) and 11 reptile species (5 families), where sampling effort in 2022 was adequate to reflect the overall herpetofauna diversity. There was a decrease in the species diversity index in Ranu Darungan after the Semeru eruption, indicating an increase in environmental stress for amphibians. However, the expected trend was not observed before and after the COVID-19 pandemic; other factors (besides reduced human activity at the site) may have contributed. Keywords: amphibian, diversity, herpetofauna, national park, reptile
Co-Authors Achmad, Caesar Rasendria Agung S. Kurnianto Agung Sih Kurnianto Aini, Quratul Alfaruqi, Nuri Thobibatus Shofia AMIR HAMIDY Aninnas, Afina Arief Darmawan Arifianto, Adityas Assiddiqy, Miftah Farid Berry Fakhry Hanifa Devi, Sandra Rafika Dewi, Nilasari Didik Wahyudi Dzakiyyaa, Ruwaida Erfanda, Muhammad Prayogi Fadhilah, Muhamad Aslam Fathoni, M Firdaus, Firman Firizki, Dinda Tinalanisari Hamidah, Wanda Haq, Mochammad Nur Izzul Kharisma, Viol Dhea Luchman Hakim Magvira, Nur Laila Muhammad Asmuni Hasyim Muhammad Fathoni, Muhammad Muhammad Rizqi Mukhtadin Mulyono, Rizki Mujahidin Nadhori, Qoyin Nanang Tri Haryadi Nia Kurniawan Nuning Nurcahyani Nurrofik, Agus Pamungkas, A. S. P. Rijalullah, Muhammad Asyraf Rudi Hilmanto Santoso, Trio Setya, Yudha Sholikah, Ummi Suparno, Kelik Surya, Rikha Aryanie Syafrudin Syafrudin Utoyo, Laji Zen, Tresa Variyani