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All Journal Jurnal Entomologi Indonesia Jurnal Pembelajaran dan Biologi Nukleus ULIN: Jurnal Hutan Tropis
Ritonga, Yusran Efendi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media

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Species of Woody Plants in Green Open Spaces of Medan State University Ritonga, Yusran Efendi; Harsono, Tri
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i2.6848

Abstract

Background: Universities play a critical role in the development of urban ecosystems, which include artificial forests, parks, and green open spaces. Medan State University is one of the campuses in Medan City, North Sumatra, that boasts a significant amount of green open space. In order to identify and prioritize the conservation of woody plant species, data collection is necessary. Methodology: The method employed exploration, which involves the recording of all woody plants and their presentation in a qualitative descriptive format. Findings: The data on woody plants in the green open spaces of Medan State University are categorized into 2 subdivisions, 48 families, and 146 species, as indicated by the study's findings. Contribution: Protective plants, medicinal plants, spices, fresh fruits, and ornamental plants are all utilized. It is anticipated that the findings of this investigation will serve as a reference for future research on woody plants in urban green open spaces
Butterfly diversity in natural and modified habitat at Bahorok District, Langkat Regency, North Sumatra: Keanekaragaman kupu-kupu di habitat alami dan habitat buatan di Kecamatan Bahorok, Kabupaten Langkat, Sumatera Utara Nurhayati; Syarifuddin; Ritonga, Yusran Efendi; Pradwinata, Ricky; Pendong, Lexi Majesty
Jurnal Entomologi Indonesia Vol 22 No 1 (2025): March
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.22.1.17

Abstract

Changes in the function of natural areas, rice fields, and plantations can reduce the number and diversity of butterflies, with environmental factors playing a significant role in shaping butterfly richness and diversity. This study aimed to identify differences in butterfly diversity and composition between natural and modified habitats and to examine the relationship between environmental factors and butterfly richness and diversity. This research was conducted from March to April 2021 using a modified exploration method (pollard walk) through direct observations of butterflies. Observations were conducted in two sessions from 08:00–12:00 and 13:00–17:00. The results of this study successfully found five butterfly families with 995 individuals in natural habitats (79 species), whereas, in modified habitats, as many as 627 individuals (29 species) were documented. Based on the Shannon Winner index (H’) and Margelaf richness index (R), the natural habitat was classified as high (H’ = 3.84, R = 11.2). Simpson’s index and evenness values of the two habitats were too different and classified as high. There were significant differences in butterfly abundance between the natural and modified habitats (t (164) = 2.441, p = 0.016). Among the biotic factors examined, only wind speed significantly affected butterfly abundance.
Identification of Amphibian Species in the Durin Serugun Village Forest, Sibolangit, North Sumatra Tambunan, Muhammad Iqbal H.; Haq, Muhammad Daffa; Muammar, Muammar; Hardiansyah, Dadang; Ritonga, Yusran Efendi
ULIN: Jurnal Hutan Tropis Vol 9, No 2 (2025)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32522/ujht.v9i2.22120

Abstract

Durin Serugun Village Forest, Sibolangit District, North Sumatra is a customary and conservation forest. Located in Deli Serdang Regency and is the headwaters of important rivers in Medan. This area contains a wealth of flora and fauna diversity such as amphibians that have never been published. A study was conducted in April 2025 with a Visual Counter Survey (VES) combined with exploration to obtain data on amphibian species in two habitats; terrestrial (including arboreal and fossorial) and aquatic. The results of the study obtained 15 species of amphibians from 5 families; Bufonidae (4 species), Megophrydae (1 species), Ranidae (4 species), Digroclossidae (5 species), Rhacophoridae (1 species). Three of them are endemic to Sumatra; Chalcorana parvaccola, Sumatrana crassiovis and Rhacophorus catamitus. The report on amphibians in this location is expected to be an important reason for all related parties to take firm and serious steps in protecting and preserving the area and in more in-depth exploration the area has the potential to reveal the existence of amphibian species due to the lack of data in this potential location.
Co-Authors Haq, Muhammad Daffa Hardiansyah, Dadang Muammar Muammar, Muammar Nurhayati Pendong, Lexi Majesty Pradwinata, Ricky Syarifuddin Tambunan, Muhammad Iqbal H. Tri Harsono