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All Journal HAYATI Journal of Biosciences Jurnal Belantara JKRL-Juli
Sitompul, Rahmadi
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Education Energy Environmental Science

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Apis cerana Fabricius, 1793 in Sumatra: Haplotype Variations of Mitochondrial DNA and the Molecular Relationship with the Asian Honey Bees (Hymenoptera: Apidae) Simanjuntak, Juniarto Gautama; Priawandiputra, Windra; Raffiudin, Rika; Shullia, Nurul Insani; Jauharlina, Jauharlina; Pradana, Mahardika Gama; Meilin, Araz; Jasmi, Jasmi; Pujiastuti, Yulia; Lestari, Puji; Ilyasov, Rustem; Sitompul, Rahmadi; Atmowidi, Tri
HAYATI Journal of Biosciences Vol. 31 No. 4 (2024): July 2024
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.31.4.768-780

Abstract

Honey bee Apis cerana is widely distributed in Asia and the Indonesian archipelago, including Sumatra. We studied the molecular variations of A. cerana using cytochrome c oxidase subunits 1 and 2 genes (cox1 and cox2) and the cox1/cox2 intergenic spacers (igs) in several altitudes in the six provinces of Sumatra. We explored the haplotype distributions of those three mtDNA markers for A. cerana in the low-, mid-, and highlands of Sumatra. We also analyzed their relationship with A. cerana in Sundaland and Asia using those markers. Our study revealed 12 new haplotypes of A. cerana cox1 in Sumatra, while nine and eight new haplotypes for cox2 and igs, respectively. Apis cerana in North Sumatra, Lampung, and South Sumatra had the three highest haplotype variations. Most of the specific haplotypes of inter-colony A. cerana from Sumatra were found in the lowlands, while most were in the highlands for intra-colony variations. We found low gene flow among populations of A. cerana in Sumatra. One haplotype, Sumatra4 cox2 from North Sumatra, was the same as Java3 haplotype, presumably due to anthropogenic impact. The molecular phylogenetic tree of A. cerana in the Sundaland revealed that A. cerana from Sumatra has a close relationship to those of Borneo compared to Java.
Melissopalynological Analysis Revealed a Higher Pollen Diversity in Stingless Bees than in Honey Bees Sayusti, Tiara; Raffiudin, Rika; Djuita, Nina Ratna; Perwitasari-Farajallah, Dyah; Batubara, Irmanida; Priawandiputra, Windra; Sitompul, Rahmadi; Jahnk, Svea Lina; Behling, Hermann
HAYATI Journal of Biosciences Vol. 33 No. 1 (2026): January 2026
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.33.1.196-203

Abstract

Identifying floral resources used by honey bees and stingless bees is essential for sustainable beekeeping and understanding pollination ecology. This study compared the diversity of floral resources utilized by the honey bee Apis cerana and stingless bees Geniotrigona thoracica and Heterotrigona itama based on pollen in honey. Bee colonies were in the same Flora Nauli Beekeeping area, Pematang Siantar, North Sumatra, Indonesia, ensuring equal access to similar surrounding floral resources. Honey samples were collected, and pollen grains were extracted, acetolysed, and analyzed by counting 1,200 grains to determine frequency classes. Pollen diversity was calculated using the Shannon–Wiener index (H′). Stingless bee honey contained more diverse pollen than A. cerana, which only contained pollen from the Arecaceae family. Heterotrigona itama and G. thoracica honey contained pollen from 20 and 11 plant families, respectively. Each species had a distinct predominant pollen type (>45%): Cocos nucifera (A. cerana), Sapotaceae type (G. thoracica), and Casuarinaceae type (H. itama). A higher pollen diversity index was also observed in H. itama (1.05-1.83) than in G. thoracica (0.34–1.64) and A. cerana (0.66). These results indicate that stingless bees are more generalist than honey bees, highlighting their ecological role in supporting pollination networks in tropical agroecosystems.
AN AMBIGUOUS PERCEPTION OF SUMATRAN ORANGUTANS (Pongo abelii) BY LOCAL COMMUNITY IN TANGKAHAN, LEUSER ECOSYSTEM, INDONESIA Sitompul, Rahmadi; Berliani, Kaniwa; Lhota, Stanislav
Jurnal Belantara Vol 7 No 1 (2024)
Publisher : Forestry Study Program University Of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbl.v7i1.1009

Abstract

The interaction between the local community and orangutans is often perceived as mere conflict. Here, we delve into the intricacies of the local perceptions of orangutans by employing semi-structured interviews as a part of an ethnoprimatological approach. Our focus is on the Tangkahan ecotourism area, the Leuser ecosystem, Indonesia. Respondents were selected through convenience sampling. There are 16 respondents, the majority is Batak Karo ethnicity. Our findings reveal a complex and ambiguous local perception towards orangutans, encompassing both positive and negative aspects. In some cases, orangutans are perceived as pests to durian crops and potentially dangerous. In other cases, orangutans are also perceived as human resemble, attractions for tourism, and deserving of protection. We also found some folklore tells that orangutans are human relatives. The positive values of orangutans are likely influenced by ecotourism activities that actively involve the local community in management and development efforts.
KOMPETISI KULINER UNTUK KONSERVASI: EVALUASI LOMBA MASAK RAMAH LINGKUNGAN DI UNIVERSITAS SUMATERA UTARA Sitompul, Rahmadi; Syafitri, Ade; Suriani, Cicik; Nasution, Ahmad Luthfi Abdillah
Jurnal Konservasi dan Rekayasa Lingkungan Vol. 1 No. 2 (2024): Jurnal Konservasi dan Rekayasa Lingkungan
Publisher : Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/jkrl.v1i2.10498

Abstract

Kesadaran global mengenai kelestarian lingkungan telah mendorong upaya untuk mengurangi dampak lingkungan dari berbagai aktivitas manusia, termasuk dalam memasak. Penelitian ini bertujuan mengevaluasi lomba masak ramah lingkungan sebagai media kampanye peduli lingkungan, dengan mengukur tingkat keramahlingkunganan resep masakan yang diajukan menggunakan kriteria penilaian yang sistematis. Penelitian dilaksanakan dalam rangkaian kegiatan lomba yang berlangsung di Universitas Sumatera Utara pada awal 2024, di mana peserta mendaftar dan mengirimkan resep secara daring. Resep yang memenuhi kriteria keramahlingkunganan dipilih untuk tahap re-cooking dan disajikan kepada panelis untuk penilaian. Metode yang digunakan mencakup observasi partisipan, wawancara tidak terstruktur, serta Focus Group Discussion (FGD) untuk mengevaluasi pelaksanaan acara. Hasil penelitian menunjukkan bahwa lomba ini tidak hanya meningkatkan pemahaman panelis terhadap konsep masakan ramah lingkungan, tetapi juga menumbuhkan antusiasme mereka terhadap upaya keberlanjutan, terlihat dari tingginya minat terhadap edukasi dan permintaan resep. Kendala utama meliputi kurangnya komunikasi dalam tim panitia, strategi promosi yang terbatas, serta kesulitan pendaftaran daring. Solusi yang disarankan mencakup peningkatan koordinasi panitia dan penyederhanaan prosedur bagi peserta. Lomba ini terbukti efektif sebagai media kampanye lingkungan, namun membutuhkan penyempurnaan pada aspek operasional.
Co-Authors Araz Meilin Behling, Hermann Berliani, Kaniwa CICIK SURIANI DYAH PERWITASARI -FARAJALLAH Ilyasov, Rustem Irmanida Batubara Jahnk, Svea Lina Jasmi Jasmi Jauharlina Jauharlina Lhota, Stanislav Nasution, Ahmad Luthfi Abdillah Nina Ratna Djuita Nurul Insani Shullia Pradana, Mahardika Gama PUJI LESTARI RIKA RAFFIUDIN Sayusti, Tiara Simanjuntak, Juniarto Gautama Syafitri, Ade Tri Atmowidi WINDRA PRIAWANDIPUTRA, WINDRA YULIA PUJIASTUTI