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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.
Integrating BSF larvae for the sustainable bioconversion of banana peels and sprout hulls waste Rizkawati, Vina; Andhini, Shabrina Lathiifah; Noer, Mohamad Isnin; Yudistira, Dwi Harya; Kurniati, Tri Handayani; Lisanti, Elsa; Komala, Ratna; Herlin, Weri
Bioeksperimen: Jurnal Penelitian Biologi March 2026
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/bioeksperimen.v12i1.13637

Abstract

The management of organic waste presents a significant challenge in Indonesia, especially fruit and vegetable by-products. Black Soldier Fly (BSF, Hermetia illucens) larvae offer an effective solution due to their high potential for organic waste conversion. This study investigated the efficacy of BSF larvae in reducing and bioconverting organic waste composed of banana peels and sprout hulls, and examined the influence of EM4 fermentation on larval growth performance. Waste Reduction Index (WRI) and bioconversion rate (BCR) were calculated as percentages and analyzed descriptively, followed by the Kruskal–Wallis test. Furthermore, larval length and body weight were measured at 7, 11, 14, and 18 days of larval age and analyzed using Kruskal–Wallis with Dunn’s post-hoc test. The results showed that EM4–fermented substrates containing a 1:3 ratio of banana peels to sprout hulls showed the highest waste reduction and bioconversion potential among all mixture treatments (P < 0.05). Although larval length and weight were lower than control substrate, no significant difference in larval length was detected, while individual larval weight was significantly higher compared to other organic waste combinations (P < 0.001). In this study, EM4 fermentation enhanced lignocellulosic degradation, improving substrate digestibility for BSF larvae and optimizing bioconversion efficiency, thus supporting more sustainable organic waste management strategies.
VEGETASI TAMAN URBAN SEBAGAI PENYEDIA PAKAN BAGI BEBERAPA TROPHIC GUILD BURUNG HERBIVORA: STUDI TAMAN LAPANGAN BANTENG, JAKARTA PUSAT Hafidz Prananta Hakamashe; Diah Retno Arumsari; Esti Komariah; Hilmi Febriyani; Intan Febrianty; Nabilah Destiyana; Rahmah Aulia; Wulan Sukmawati; Mohamad Isnin Noer; Agung Sedayu
Bioma Vol. 18 No. 2 (2022): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/Bioma18(2).4

Abstract

Vegetal food is the most important resource for herbivores. The study of food consumed by bird community in Indonesia, especially in urban environments is needed to provide an overview of the ability of City Parks to support bird communities. The aim was to determine the urban park vegetation in the Lapangan Banteng park as a potential food source for urban birds, especially frugivores, nectarivores and granivores. The study was conducted in September until December 2018 . Data were analyzed using Rstudio and ImageJ. The results showed that there were 7 species of birds consisting: four species of granivores (Passer montanus, Streptopelia chinensis, Lonchura punctulata, and Pycnonotus aurigaster) and three species of frugivores (Psittacula alexandri, Dicaeum trochileum, Treron vernans) which were observed to use plants as food resource Lapangan Banteng park. Birds used 30% of trees (Syzygium polyanthum, Melaleuca leucadendra, Ficus benjamina) and 70% of herbaceous ground cover (Arachis pintoi., Phoenix sp., Pennisetum purpureum, Axonopus compressus, Cynodon dactylon, Cyperus rotundus, and Eleusine indica). The availability of sufficient natural food in nature will have an impact on both bird conservation and the environment. The availability of natural food will improve bird conservation and ensure the sustainability of urban biodiversity.