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Sporopollenin as a dilution agent in artificial diets for solitary bees

Tainsh, Fiona; Woodmansey, Shannon R.; Austin, Alexander J.; Bagnall, Toby E.; Gilbert, James D.J.

Authors

Fiona Tainsh

Shannon R. Woodmansey

Alexander J. Austin

Toby E. Bagnall

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Dr James Gilbert James.Gilbert@hull.ac.uk
Lecturer in Zoology/ Deputy Programme Leader, Zoology



Abstract

Nutritional studies often require precise control of nutrients via dilution of artificial diets with indigestible material, but such studies in bees are limited. Common diluents like cellulose typically result in total mortality of bee larvae, making quantitative studies difficult. We investigated potential alternative dietary dilution agents, sporopollenin (pollen exines) and agar. We reared Osmia bicornis larvae on pollen diluted with these substances, alongside undiluted controls. Sporopollenin neither prevented nor improved survival, suggesting it is a suitable diluent. Agar appeared marginally to increase survival and its suitability requires further research. Both substances reduced cocoon weight, and sporopollenin also prolonged development, suggesting processing costs. Determining the physiological mechanisms driving these responses requires further work. Our findings should facilitate studies involving nutritional manipulations for solitary bees.

Citation

Tainsh, F., Woodmansey, S. R., Austin, A. J., Bagnall, T. E., & Gilbert, J. D. (in press). Sporopollenin as a dilution agent in artificial diets for solitary bees. Apidologie, https://doi.org/10.1007/s13592-020-00801-1

Journal Article Type Article
Acceptance Date Aug 3, 2020
Online Publication Date Oct 1, 2020
Deposit Date Oct 2, 2020
Publicly Available Date Oct 5, 2020
Journal Apidologie
Print ISSN 0044-8435
Electronic ISSN 1297-9678
Publisher Springer Verlag
Peer Reviewed Peer Reviewed
DOI https://doi.org/10.1007/s13592-020-00801-1
Keywords Artificial diet; Dilution agent; Solitary bee; Nutritional ecology; Geometric framework
Public URL https://hull-repository.worktribe.com/output/3620870
Publisher URL https://link.springer.com/article/10.1007/s13592-020-00801-1

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© The Author(s), 2020. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.






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