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Ecological Impact on Stingless Bees: Evaluating Pollen Load and Body Size Post-Introduction Suhri, Andi Gita Maulidyah Indraswari; Kahono, Sih; Riendriasari, Septiantina Dyah; Syahribulan; Salatnaya, Hearty; Rahmah, Mufti Hatur
HAYATI Journal of Biosciences Vol. 32 No. 2 (2025): March 2025
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.32.2.278-286

Abstract

Changes in foraging behavior of stingless bees are caused by their introduction to new environments with varying biotic and abiotic factors. These bees struggle to adapt due to the shift from their original range. Biotic factors, particularly food source abundance, are crucial for their survival. Limited resources and reduced competition can decrease hive pollen, affecting larval nutrition and adult morphological growth. This study examines the physical effects of introducing stingless bees from Sulawesi to Jawa, Indonesia, using PCA to analyze 35 morphological traits and a haemocytometer to calculate pollen load. Morphometry was performed on ten separate colonies and ten different individual worker bees. Research findings indicate that the most significant size changes were observed in the forewing and hindwing lengths of worker bees at the introduction site. The smaller body size in the new environment indicates less available food in the nest. The lower pollen collection in the new environment compared to their natural habitat confirms this. The decline in pollen load is attributed to biotic factors like competition and food availability. When stingless bees become non-native, they face competition with existing species, including natives. Abiotic factors do not significantly influence the reduction in worker bees' foraging activity in the new environment. Changes in environmental factors significantly influenced the morphometric measurements of worker bees, following their introduction to lowland areas.
Profil Bioaktif Madu Lebah Tak Bersengat Berdasarkan Jenis Sumber Nektar Bahar, Irnayanti; Astuti, Wiwik Wiji; Suhri, Andi Gita Maulidyah Indraswari
Berkala Ilmiah Biologi Vol 16 No 2 (2025)
Publisher : Fakultas Biologi Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/bib.v16i2.21907

Abstract

Stingless bee honey (Meliponini) is a natural product with strategic value in the functional food and health industries due to its unique bioactive compound content. However, variations in honey composition based on nectar sources in Indonesia, have not been thoroughly documented. This study aims to analyze the differences in moisture content, total sugars, polyphenols, antioxidant activity, and antimicrobial properties of stingless bee honey derived from different nectar sources. Honey samples were obtained from three distinct vegetative sources: acacia, rambutan, and longan nectars. Laboratory analyses were conducted using standard methods, including spectrophotometry for measuring sugar and polyphenol contents, DPPH assay for antioxidant activity, and disc diffusion method for antimicrobial testing. The results showed that honey from rambutan nectar had the lowest moisture content (23.5% ±1.2), the highest polyphenol content (356 ±21 mg GAE/100g), and the strongest antioxidant activity (IC50 12.4 mg/mL). In addition, this honey also demonstrated antimicrobial activity against Staphylococcus aureus with an inhibition zone of 14.2 ±1.5 mm. These findings indicate that nectar source plays a crucial role in determining honey quality, and may serve as a foundation for the development of high-value honey products based on local floral biodiversity.
Saving Wallacetrigona incisa: Community-Led Conservation Integrating Science and Indigenous Knowledge in North Luwu’s Mountain Forests, Indonesia Suhri, Andi Gita Maulidyah Indraswari
Jurnal Sylva Lestari Vol. 13 No. 3 (2025): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i3.1165

Abstract

Community-led conservation that integrates science and indigenous knowledge is vital for ensuring ecological sustainability and local stewardship in biodiversity protection. Wallacetrigona incisa, a stingless bee species endemic to Sulawesi, serves as a key pollinator in the mountain forests of North Luwu, Indonesia. However, its populations are increasingly threatened by deforestation, habitat fragmentation, and unsustainable harvesting methods, such as felling nest trees and discarding colonies after honey extraction. This study assessed the population status, identified key threats, and developed conservation strategies that integrate ecological science with traditional knowledge and active community participation. Methods included systematic field surveys, habitat suitability modeling using MaxEnt, satellite image analysis to detect changes in forest cover, and participatory approaches such as interviews and focus group discussions. Participatory GIS (PGIS) was used to involve communities in mapping and planning conservation priorities. The results show that destructive harvesting poses a severe threat to W. incisa, whereas sustainable practices support colony stability and enhance honey productivity. Economic dependence on honey harvesting is high, yet awareness of sustainable methods is limited. The indigenous mappurondo belief system, which protects sacred forest areas, offers a cultural foundation for community-based conservation. This study emphasizes the necessity of an integrated strategy that combines habitat protection, community capacity building, and the revitalization of traditional ecological knowledge. This study concludes that integrating scientific data, sustainable harvesting practices, and indigenous traditions can enhance colony survival and community livelihoods.  The results underscore the potential of inclusive conservation policies that bridge ecological and socio-economic objectives, offering a replicable model for tropical biodiversity conservation that aligns with local well-being. Keywords: conservation, endemic bee, indigenous knowledge, sustainability, Wallacetrigona incisa
Perbandingan aktivitas harian dua spesies lebah tanpa sengat di Sulawesi Barat: Comparison of daily activities of two species stingless bees in West Sulawesi Hasan, Phika Ainnadya; Suhri, Andi Gita Maulidyah Indraswari; Putera, Alexander Kurniawan Sariyanto
Jurnal Entomologi Indonesia Vol 21 No 1 (2024): March
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.21.1.41

Abstract

Stingless bees are spread across several islands in Indonesia, including Sulawesi. There have been no reports of daily activity of stingless bees in West Sulawesi Province. Therefore, this study aims to identify types of stingless bees in West Sulawesi, measure their daily activities, and their relationship with environmental parameters. The research was conducted in the highlands (Taupe Village, Mamasa Regency, 1,340 m dpl) and the lowlands (Mirring Village, Polewali Mandar Regency, 63 m dpl). Daily activity data collected which includes the activities in and out of the nest, carrying pollen, and throwing away rubbish. Daily activity observations use the scan sampling method. The results of the research show that the type of bee in Taupe Village is Wallacetrigona incisa (Sakagami & Inoue), while in Mirring Village is Tetragonula sapiens (Cockerell). There was no significant difference in the daily activity of W. incisa in the highlands and T. sapiens in the lowlands (P > 0.05). Significant differences were seen between the activities of leaving and entering the nest and the activities of carrying pollen and throwing away rubbish (P < 0.05). Wind speed is an environmental parameter that influences pollen-carrying activity in T. sapiens in the lowlands (r = 0.83; P = 0.002). Environmental parameters greatly influenced the daily activity of W. incisa at 12.00 pm, with an influence of 93% (P < 0.05). The results of this study indicate that differences in the type and habitat of bees and environmental factors cause differences in the daily activity of stingless bees.