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More than mesolectic: Characterizing the nutritional niche of Osmia cornifrons

Characterizing the nutritional needs of wild bee species is an essential step to better understanding bee biology and providing suitable supplemental forage for at‐risk species. Here, we aim to characterize the nutritional needs of a model solitary bee species, Osmia cornifrons (Radoszkowski), by us...

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Autores principales: Crone, Makaylee K., Boyle, Natalie K., Bresnahan, Sean T., Biddinger, David J., Richardson, Rodney T., Grozinger, Christina M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10589078/
https://www.ncbi.nlm.nih.gov/pubmed/37869440
http://dx.doi.org/10.1002/ece3.10640
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author Crone, Makaylee K.
Boyle, Natalie K.
Bresnahan, Sean T.
Biddinger, David J.
Richardson, Rodney T.
Grozinger, Christina M.
author_facet Crone, Makaylee K.
Boyle, Natalie K.
Bresnahan, Sean T.
Biddinger, David J.
Richardson, Rodney T.
Grozinger, Christina M.
author_sort Crone, Makaylee K.
collection PubMed
description Characterizing the nutritional needs of wild bee species is an essential step to better understanding bee biology and providing suitable supplemental forage for at‐risk species. Here, we aim to characterize the nutritional needs of a model solitary bee species, Osmia cornifrons (Radoszkowski), by using dietary protein‐to‐lipid ratio (P:L ratio) as a proxy for nutritional niche and niche breadth. We first identified the mean target P:L ratio (~3.02:1) and P:L collection range (0.75–6.26:1) from pollen provisions collected across a variety of sites and time points. We then investigated the P:L tolerance range of larvae by rearing bees in vitro on a variety of diets. Multifloral and single‐source pollen diets with P:L ratios within the range of surveyed provisions did not always support larval development, indicating that other dietary components such as plant secondary compounds and micronutrients must also be considered in bee nutritional experiments. Finally, we used pollen metabarcoding to identify pollen from whole larval provisions to understand how much pollen bees used from plants outside of their host plant families to meet their nutritional needs, as well as pollen from individual forager bouts, to observe if bees maintained strict floral constancy or visited multiple plant genera per foraging bout. Whole larval provision surveys revealed a surprising range of host plant pollen use, ranging from ~5% to 70% of host plant pollen per provision. Samples from individual foraging trips contained pollen from multiple genera, suggesting that bees are using some form of foraging decision making. Overall, these results suggest that O. cornifrons have a wide nutritional niche breadth, but while pollen P:L ratio tolerance is broad, a tolerable P:L ratio alone is not enough to create a quality diet for O. cornifrons, and the plant species that make up these diets must also be carefully considered.
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spelling pubmed-105890782023-10-22 More than mesolectic: Characterizing the nutritional niche of Osmia cornifrons Crone, Makaylee K. Boyle, Natalie K. Bresnahan, Sean T. Biddinger, David J. Richardson, Rodney T. Grozinger, Christina M. Ecol Evol Research Articles Characterizing the nutritional needs of wild bee species is an essential step to better understanding bee biology and providing suitable supplemental forage for at‐risk species. Here, we aim to characterize the nutritional needs of a model solitary bee species, Osmia cornifrons (Radoszkowski), by using dietary protein‐to‐lipid ratio (P:L ratio) as a proxy for nutritional niche and niche breadth. We first identified the mean target P:L ratio (~3.02:1) and P:L collection range (0.75–6.26:1) from pollen provisions collected across a variety of sites and time points. We then investigated the P:L tolerance range of larvae by rearing bees in vitro on a variety of diets. Multifloral and single‐source pollen diets with P:L ratios within the range of surveyed provisions did not always support larval development, indicating that other dietary components such as plant secondary compounds and micronutrients must also be considered in bee nutritional experiments. Finally, we used pollen metabarcoding to identify pollen from whole larval provisions to understand how much pollen bees used from plants outside of their host plant families to meet their nutritional needs, as well as pollen from individual forager bouts, to observe if bees maintained strict floral constancy or visited multiple plant genera per foraging bout. Whole larval provision surveys revealed a surprising range of host plant pollen use, ranging from ~5% to 70% of host plant pollen per provision. Samples from individual foraging trips contained pollen from multiple genera, suggesting that bees are using some form of foraging decision making. Overall, these results suggest that O. cornifrons have a wide nutritional niche breadth, but while pollen P:L ratio tolerance is broad, a tolerable P:L ratio alone is not enough to create a quality diet for O. cornifrons, and the plant species that make up these diets must also be carefully considered. John Wiley and Sons Inc. 2023-10-20 /pmc/articles/PMC10589078/ /pubmed/37869440 http://dx.doi.org/10.1002/ece3.10640 Text en © 2023 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Crone, Makaylee K.
Boyle, Natalie K.
Bresnahan, Sean T.
Biddinger, David J.
Richardson, Rodney T.
Grozinger, Christina M.
More than mesolectic: Characterizing the nutritional niche of Osmia cornifrons
title More than mesolectic: Characterizing the nutritional niche of Osmia cornifrons
title_full More than mesolectic: Characterizing the nutritional niche of Osmia cornifrons
title_fullStr More than mesolectic: Characterizing the nutritional niche of Osmia cornifrons
title_full_unstemmed More than mesolectic: Characterizing the nutritional niche of Osmia cornifrons
title_short More than mesolectic: Characterizing the nutritional niche of Osmia cornifrons
title_sort more than mesolectic: characterizing the nutritional niche of osmia cornifrons
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10589078/
https://www.ncbi.nlm.nih.gov/pubmed/37869440
http://dx.doi.org/10.1002/ece3.10640
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