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All Journal HAYATI Journal of Biosciences Journal of Tropical Biodiversity and Biotechnology E-Dimas: Jurnal Pengabdian kepada Masyarakat Bioma : Jurnal Biologi Indonesia IJEEM - Indonesian Journal of Environmental Education and Management Prosiding Seminar Nasional Pengabdian Kepada Masyarakat
Mohamad Isnin Noer
Universitas Negeri Jakarta
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Public Health Social Sciences Other

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The effect of natural noise and conspesific sound density on the prevalence of Leptophryne borbonica Tschudi, 1838 displaying visual signals Intani, Ratih Tryas; Noer, Mohamad Isnin; Rizkawati, Vina
Bioma Vol. 20 No. 1 (2024): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/Bioma20(1).4

Abstract

The main mode of communication in Anura is acoustic signals, but environmental noise can hinder effectiveness signal transmission and reception. The adaptation to noise is by visual signals. This study was conducted to determine the density, the type of visual signals detected, and whether there is an influence of environmental noise and conspecific density on the prevalence of Leptophryne borbonica population displaying visual signals. This study was conducted by descriptive method with purposive sampling technique. The data taken was in the form of the number of individuals with visual signals, the number of individuals vocalizing, and the noise of the surrounding environment. The data was processed using the Solomon Coder and analyzed by Poisson regression. 159 individual frogs were found in 40 plots during observations, with the density of individuals in each plot being 3-8 individuals with noise range of 45-74 dB. Noise significantly affected the display of visual signals in a population, while conspecific density did not affect the output of visual signals.
Checklist of herpetofauna in wetland ecosystems, Muara Angke Wildlife Reserve, Indonesia Nasihah, Fania Dewi; Mohamad Isnin Noer; Yusuf Muhammad
Bioma Vol. 21 No. 1 (2025): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/bioma.v21i1.53471

Abstract

Urbanization causes damage to the natural environment and threatens conservation areas such as Muara Angke Wildlife Reserve. Urbanization has a negative impact on species diversity, including an increase in alien species, especially herpetofauna in Muara Angke Wildlife Reserve which acts as an indicator of environmental health. This study aims to record the presence of herpetofauna using Visual Encounter Survey (VES) and Acoustic Encounter Survey (AES) methods that can show significant changes in species presence over the past six years. The results showed that, of the 28 species previously identified, only 18 species were found in the most recent study. The number or diversity of herpetofauna species recorded can be affected by anthropogenic factors, such as housing, roads, and urban temperatures. Trails unaffected by human disturbance showed higher species diversity than affected trails such as the boardwalk. Paths with relatively undisturbed natural habitats recorded the highest diversity, while other paths such as the Angke river and embankment paths decreased.
Nesting selection of hawksbill turtles in Kepulauan Seribu, Indonesia in response to sea surface temperatures Nurhaliza Putri Nabila; Mohamad Isnin Noer; Endang Tatang Hidayat; Tessalonica Christianty Andreina
Bioma Vol. 21 No. 1 (2025): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/bioma.v21i1.54401

Abstract

Hawksbill turtles are listed as a critically endangered species due to decreasing population caused by various factors, including climate change. Sea surface temperatures have significantly contributed to the hatchling success of hawksbill turtles as poikilothermic species; thus, selecting the proper location to nest is crucial for sea turtles. The purpose of this study was to observe the nest selection of hawksbill turtle (Eretmochelys imbricata Linnaeus, 1766) in response to sea surface temperature (SST) in SPTN II, Kepulauan Seribu, Jakarta, Indonesia. SST data were extracted from AQUA-MODIS satellite imagery, while the excess green index as a proxy of canopy cover was quantified using orthomosaics captured by the DJI Mavic Pro 3 at 100 m high. The results showed that SST in the study area fluctuated between 29.02°C and 31.5°C, with the highest temperature recorded in September 2024. There was no significant correlation between SST and sites selected by hawksbill turtles based on vegetation cover features. However, the correlation trend between SST and vegetation cover features indicated the plasticity of hawksbill turtles in selecting more shaded locations as SST increases. This finding highlighted the importance of vegetation cover to mitigate the detrimental effects of rising temperatures in hawksbill turtles' nesting habitats.
Exploring butterfly diversity in urban landscapes: A case study from Depok, Indonesia Reza Dino Mahardika; Nafidza Nur Shabrina; Syafiq Alan Setyawan; Mohamad Isnin Noer
Bioma Vol. 21 No. 2 (2025): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/bioma.v21i2.64032

Abstract

Depok City is one of Jakarta's satellite cities with a high level of urbanisation that is reducing the living space for butterflies. Green open spaces (GOS) play an important ecological role and have the potential to become habitats for a diverse range of butterfly species in urban areas. The existence of GOS has the potential to provide food plants and environmental preferences that support the living space of butterflies. Research needs to be conducted to determine the potential of these GOS as habitats for butterfly diversity in urban areas. This study aims to determine the diversity, abundance, density, and evenness of butterfly species in Depok City's GOS. The study was conducted in five GOS in Depok City using the Visual Encounter Survey (VES) sampling technique. We found Depok’s GOS showed moderate butterfly diversity and species evenness indices with an average density of 10.04 individuals/ha. GOS’s temperature and humidity does not determine the population variables; while light intensity and area sizes significantly related to abundance, Shannon-Wiener’s H’ and density of butterflies. Pielou’s E is not determined by any abiotic variables. Depok’s green spaces show strong promise as refugia supporting butterfly diversity in urban ecosystems.
Co-Authors AGUNG SEDAYU Aminudin, Aminudin Ardiansyah, Dhany Arumsari, Diah Retno Arwin Aulia, Rahmah Auliandina, Talita Darmawan, Boby Destiyana, Nabilah Diana Vivanti Sigit Elsa Lisanti Endang Tatang Hidayat Febrianty, Intan Febriyani, Hilmi Hakamashe, Hafidz Prananta Hakamshe, Hafidz Prananta Hanum Isfaeni Intani, Ratih Tryas Karunia, Arini Komariah, Esti Lestari, Alvita Dwi maulana, lana Muchtar Mawardi Nafidza Nur Shabrina Nasihah, Fania Dewi Nurhaliza Putri Nabila Nurul Assyfa Wardana Paskal Sukandar, Paskal Prasetya, Priya Yuga Putri, Dien Anugerah Putri, Novita Ramadhini, Kiky Ratna Dewi Wulaningsih Ratna Komala Ratna Komala, Ratna Restu Gymnastiar Pasa Reza Dino Mahardika Rizhal Hendi Ristanto Rizkawati, Vina Sri Rahayu SRI RAHAYU Sukmawati, Wulan Syafiq Alan Setyawan Tessalonica Christianty Andreina Tri Handayani Kurniati Yuniar, Debby Yusuf Muhammad