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Reza Dino Mahardika
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INDONESIA
Bioma : Jurnal Biologi Indonesia
Published by Universitas Negeri Jakarta
ISSN : 01263552     EISSN : 25809032     DOI : https://doi.org/10.21009/bioma.v21i2
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Bioma is a national peer-reviewed and open access journal that publishes significant and important research from all area of biosciences fields such as biodiversity, biosystematics, ecology, physiology, behavior, genetics and biotechnology.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ecology, Evolution, Behavior and Systematics
Articles 144 Documents
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Comparative analysis of pollen morphology at three flowering stages of Trimezia martinicensis (Jacq.) Herb. (Iridaceae), an invasive species in Indonesia Alda Wydia Prihartini Azar; Isnaeni Nur Ardianti; Hasna Dyah Kusumardani; Sri Lestari; Riska Desi Aryani
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.v21i2.55503

Abstract

Pollen morphology provides critical insights into plant reproduction, taxonomy, and evolutionary relationships. This study investigates pollen development in Trimezia martinicensis (Iridaceae), an invasive alien species in Indonesia, across three flowering stages: closed bud, developed bud, and mature flower. Vegetative and floral traits were documented alongside stage-specific palynological analyses. Pollen grains were examined under light microscopy to assess changes in orientation, shape, aperture, and exine architecture. Results revealed distinct morphological transitions, including spheroidal grains with monocolpate apertures at early stages, progressing to more rounded forms with refined wall structures in mature flowers. These findings highlight the dynamic nature of pollen morphology during anthesis and underscore its relevance for reproductive biology, taxonomy, and management of IAS in Indonesia.
Anura diversity and distribution at the three anthropogenic habitat areas of the IPB Dramaga Campus, West Java, Indonesia Anwar, Chairunisa; Rahma, Nur Azizah Maulidiyah; Nakadira, Ninda Luqya; Kadang, Septiany Anugrah; Munggaran, Rahmat Agung; Rianti, Puji
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.v21i2.55973

Abstract

Anura, a group of amphibians widely distributed in freshwater and terrestrial ecosystems, has been understudied regarding its diversity and distribution patterns in urban terrestrial settings. This study aims to identify the species composition, diversity, evenness distribution patterns and  environmental correlates of Anura across three differing disturbance level areas within the IPB Dramaga campus in Bogor. Data was collected using the Visual Encounter Survey method. The results indicate that Anura distribution across the three habitats tends to be clustered, comprising 199 individuals from six species and four families. Duttaphrynus melanostictus dominated habitats with high disturbance levels, highlighting its ecological significance as a tolerant species capable of surviving and dominating amphibian communities in disturbed areas. Conversely, the low-disturbance area exhibited the highest species diversity (H′ = 1.13) and evenness (E = 0.63) compared to the other two habitats, supported by an average soil pH of 5.09 and soil moisture of 59.8%. Environmental factors and human activities likely influenced differences in community structure. These findings emphasize the importance of maintaining diverse microhabitats in urban areas to support the persistence of both disturbance-tolerant and sensitive amphibian species.
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.
Comparing cityparks and cemeteries: Which habitat better supports urban bird communities? Nur Muhammad Firmansyah; Ratna Komala; Eka Putri Azrai; Elsa Lisanti; Agung Sedayu
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.v21i2.65433

Abstract

Urban birds represent the group of organisms adapted to environments characterized by close proximity to human activity. However, disturbances often displacing them to less disturbed habitats. In Jakarta, city parks and cemeteries serve as relatively low-activity green spaces that provide potential refugia for avian communities, thus hold conservation value. This study investigated bird and vegetation diversity in these two types of urban green open spaces (GOS) and examined their relationships the vegetation diversity. Surveys were conducted in four city parks and four cemeteries in circular plots. Results indicated that bird diversity in city parks was moderate, while tree and non-tree diversity ranged from low to moderate. In cemeteries, bird, tree, and non-tree diversity were consistently low to moderate. It is a positive correlation between tree diversity and bird diversity, and a negative correlation between non-tree diversity and bird diversity, though both relationships were not strong. It is also revealed that bird diversity in both city parks and cemeteries differ markedly. These findings highlight the ecological role of urban green spaces in supporting avian diversity and emphasize the importance of vegetation structure in shaping bird communities within highly urbanized landscapes.

Page 15 of 15 | Total Record : 144

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