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Landscape composition influences colony growth in the tropical asian stingless bees (Tetragonula fuscobalteata)

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Abstract

Context

Pollination is an important ecosystem service for both crop and wild plants. In recent decades, many pollinators have been experiencing population declines due to land-use changes and intensified agriculture. However, effects of anthropogenic landscapes on bee pollinators in the tropics are still little investigated.

Objectives

We analyzed the effects of landscape composition on the colony weight as well as foraging activity and patterns of the tropical Asian stingless bee species Tetragonala fuscobalteata which is a vital generalist pollinator in Southeast Asia.

Methods

Twenty-eight colonies were established and monitored over a year in 19 mixed fruit orchards located along a gradient of human land-use intensity.

Results

Our results revealed that the colonies gained weight and increased their foraging activity over time across diverse landscapes including forest, agricultural, and urbanized areas, indicating that this bee species can well adapt to anthropogenic landscapes. Interestingly, T. fuscobalteata colonies also gained weight rapidly in orchards located in predominately agricultural landscapes with e.g. high proportions of rubber and oil palm plantations as well as in fruit orchards (such as rambutan, durian, coconut, banana). This positive effect was possibly due to mass flowering crops providing abundant resources, i.e., pollen and nectar, for a limited time. We also show that T. fuscobalteata foragers could rely on urbanized land (probably ornamental plants and some crops in home gardens and backyards) and wild plants in surrounding forest patches during non-flowering periods of crops.

Implications for insect conservation

Our results can contribute to land management design to promote biodiversity and enhance pollination services. As resource continuity and diversity at the landscape scale are vital for insect pollinators, we suggest preserving natural forest areas, planting many crop species within agricultural lands, and providing flowering plants in suburban or urban gardens.

Conclusions

Our findings indicate that despite land-use intensification, the generalist pollinator, Tetragonala fuscobalteata, which is commonly used in meliponiculture in Southeast Asia, can persist in highly modified anthropogenic landscapes with the combined floral resource availability, including agricultural fields, urbanized areas and forests. We consider landscape management as a possible way to support these native pollinating insect populations by not only establishing highly heterogeneous landscapes, but also by creating suitable resource-rich sites facilitating pollinator movement between human-modified landscapes and natural habitats.

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Data Availability

The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.

References

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Acknowledgements

We are very grateful to all the owners of the mixed fruit orchards in Songkhla and Phatthalung provinces for permitting us to collect data and their hospitality during fieldwork. Thanks are due to Sittisak, Artorn, Venus, Nittaya, Suntaree, Areeruk, Supawan and Janmanee for the help and fieldwork assistance. Special thanks go to Assoc. Prof. Dr. Alyssa Stewart and Dr. Tuanjit Sritongchuay for their comments and suggestions on this research. This work was supported by the Thailand Agricultural Research Development Agency (ARDA) (grant no. HRD6305063). The first author appreciates the support from the Science Achievement Scholarship of Thailand (SAST) at the Prince of Songkla University during a Ph.D. program. We also thank two anonymous reviewers for their constructive comments and suggestions.

Funding

This work was supported by the Thailand Agricultural Research Development Agency (ARDA) (grant no. HRD6305063).

Author information

Authors and Affiliations

Authors

Contributions

Conceptualization: KW, SB, SDL, BC; Methodology: KW; Formal analysis and investigation: KW, SDL; Writing - original draft preparation: KW; Writing - review and editing: KW, SDL, BC, IC, SB; Funding acquisition: KW; Supervision: SB, SDL, BC.

Corresponding author

Correspondence to Sara Bumrungsri.

Ethics declarations

Animal ethics

Permission to work with the animals of this research project (project number 2562-01-073) was granted by Institutional Animal Care and Use Committee, Prince of Songkla University.

Competing interests

The authors have no relevant financial or non-financial interests to disclose.

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Cite this article

Wayo, K., Leonhardt, S.D., Chuttong, B. et al. Landscape composition influences colony growth in the tropical asian stingless bees (Tetragonula fuscobalteata). J Insect Conserv 28, 113–126 (2024). https://doi.org/10.1007/s10841-023-00527-2

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  • DOI: https://doi.org/10.1007/s10841-023-00527-2

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