Perception, regulation, and fitness effects of pollen phytosterols in the bumble bee, Bombus terrestris DOI Creative Commons
Carmen A. Nebauer,

Marielle C. Schleifer,

Fabian A. Ruedenauer

et al.

American Journal of Botany, Journal Year: 2023, Volume and Issue: 110(6)

Published: April 18, 2023

Many flowering plants depend on insects for pollination and thus attract pollinators by offering rewards, mostly nectar pollen. Bee rely pollen as their main nutrient source. Pollen provides all essential micro- macronutrients including substances that cannot be synthesized bees themselves, such sterols, which need processes hormone production. Variations in sterol concentrations may consequently affect bee health reproductive fitness. We therefore hypothesized (1) these variations sterols longevity reproduction bumble (2) can perceived via the bees' antennae before consumption.We studied effect of Bombus terrestris workers feeding experiments investigated perception using chemotactile proboscis extension response (PER) conditioning.Workers could perceive several (cholesterol, cholestenone, desmosterol, stigmasterol, β-sitosterol) but not differentiate between them. However, when were presented pollen, a single compound, unable to differing content. Additionally, different neither affected consumption nor brood development or worker longevity.Since we used both natural higher than those found our results indicate pay specific attention content beyond threshold. Naturally encountered might fully support requirements do seem have negative effects.

Language: Английский

Pollen nutrition structures bee and plant community interactions DOI Creative Commons
Anthony D. Vaudo, Lee A. Dyer, Anne S. Leonard

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(3)

Published: Jan. 8, 2024

As bees’ main source of protein and lipids, pollen is critical for their development, reproduction, health. Plant species vary considerably in the macronutrient content pollen, research bee model systems has established that this variation both modulates performance guides floral choice. Yet, how chemistry shapes interactions between plants bees natural communities an open question, essential understanding nutritional dynamics plant–pollinator mutualisms informing conservation. To fill gap, we asked nutrition (relative lipid content) sampled from 109 co-flowering plant structured visitation patterns observed among 75 subgenera pollen-collecting Great Basin/Eastern Sierra region (USA). We found degree similarity species’ predicted visitor communities, even after accounting morphology phylogeny. Consideration also shed light on structure interaction network: Bee genera were arranged into distinct, interconnected groups, delineated by differences values, revealing potential niches. Importantly, alone (high protein, high lipid, or balanced) did not predict diversity visitors, indicating offering complementary may be equally valuable supporting diversity. Nutritional should thus a key consideration when selecting habitat restoration, nutritionally explicit perspective needed considering reward involved community ecology pollination.

Language: Английский

Citations

31
Biopesticides and insect pollinators: Detrimental effects, outdated guidelines, and future directions DOI
Federico Cappa, David Baracchi, Rita Cervo

et al.

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 837, P. 155714 - 155714

Published: May 4, 2022

Language: Английский

Citations

60
Plants other than animal-pollinated herbs provide wild bees with vital nutrients DOI Creative Commons
Michał Filipiak

Global Ecology and Conservation, Journal Year: 2024, Volume and Issue: 52, P. e02984 - e02984

Published: May 10, 2024

Adult pollinators that forage primarily for energy have traditionally guided our understanding of plant–pollinator interactions, leading to assumptions about the importance different plants pollinators. Consequently, pollinator conservation strategies potentially overlook balance juvenile diets. I studied a representative bee, Osmia bicornis, explore contributions various nutritional quality diet. Using ecological stoichiometry and micronutrient ecology, investigated proportions vital body-building chemical elements (C, N, P, S, K, Na, Ca, Mg, Fe, Zn, Mn Cu; henceforth "nutrients") in larval pollen loads. considered botanical origin, location sexual dimorphism niche as factors influencing nutrient Redundancy analysis indicated main factor determining proportion was which accounted 70.17% variation; contributed 20.21%, sex 8.43%. Among 30 taxa composing loads, determinants content were oak, maple, chestnut, cabbage family, buttercup, grasses. Trees wind-pollinated provided important nutrients. Oak maple contributors nutrients essential growth body development (N, Cu, Zn). Grasses buttercups is bees. Complex habitat management schemes extending beyond traditional seed mixes are conservation, non-obvious plant species provide should be included efforts create complex landscape enabling balanced

Language: Английский

Citations

7
The Key Role of Amino Acids in Pollen Quality and Honey Bee Physiology—A Review DOI Creative Commons
Maciej S. Bryś, Aneta Strachecka

Molecules, Journal Year: 2024, Volume and Issue: 29(11), P. 2605 - 2605

Published: June 1, 2024

When studying honey bee nutrition, it is important to pay attention not only the quantity but also quality of pollen for floral visitors. The recommended way determine value both protein concentration and amino acid composition in insect’s hemolymph. In addition, includes lipids, sterols biogenic elements such as carbon, nitrogen, etc. Very high observed aloe pollen, averaging 51%. Plants with a content, at level 27% Europe, are rapeseed phacelia. turn, plant that poor (at 11%) buckwheat. aforementioned plants sown over very large areas. Vast acreages Central Eastern Europe occupied by pollen- nectar-providing invasive plants, goldenrod. Therefore, bees forced use one food source—a mono diet—which results their malnutrition. absence natural beekeepers other foods bees; including soy protein, powdered milk, egg yolks, fish meal, However, colony strongest when fed opposed artificial diets. More research needed on relationship between measured apian hemolymph, strength, yield good overwintering.

Language: Английский

Citations

7
Extreme heat exposure of host plants indirectly reduces solitary bee fecundity and survival DOI Creative Commons
Jenna Walters,

M. Barlass,

Robin Fisher

et al.

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 291(2025)

Published: June 1, 2024

Extreme heat poses a major threat to plants and pollinators, yet the indirect consequences of stress are not well understood, particularly for native solitary bees. To determine how brief exposure extreme flowering affects bee behaviour, fecundity, development survival we conducted no-choice field cage experiment in which Osmia lignaria were provided blueberry ( Vaccinium corymbosum ), phacelia Phacelia tanacetifolia ) white clover Trifolium repens that had been previously exposed either (37.5°C) or normal temperatures (25°C) 4 h during early bloom. Despite similar number open flowers floral visitation frequency between two treatments, female bees with heat-stressed laid approximately 70% fewer eggs than females non-stressed plants. Their progeny received quantities pollen provisions larvae consuming from significantly lower as adults. We also observed trends delayed emergence reduced adult longevity when consumed pollen. This study is first document short, field-realistic bursts host can indirectly affect pollinators their offspring, important implications crop pollination populations.

Language: Английский

Citations

6
The nutritional landscape in agroecosystems: a review on how resources and management practices can shape pollinator health in agricultural environments DOI Creative Commons
Pierre Lau, Isaac L. Esquivel, Katherine A. Parys

et al.

Annals of the Entomological Society of America, Journal Year: 2023, Volume and Issue: 116(5), P. 261 - 275

Published: July 25, 2023

Abstract Pollinator nutrition is a highly complex subject that we are just starting to unravel, from the multidimensional nature of bee forage (pollen and nectar) how abiotic environment can affect resources available bees. Doing so utmost importance, as improving pollinator resource availability one proposed mechanisms improve populations health. However, landscape change has changed naturally for pollinators. Farmland cropping systems create unique nutritional pollinators, with agroecosystems typically containing few crops dominating along natural corridors noncrop plants. The types planted surrounding will ultimately bees have access to. Even management practices in agriculture pests controlled will, directly indirectly, health nutrition. Hence, better understanding agricultural ecosystems warranted. This review synthesizes research on ecology landscapes advance our agriculture.

Language: Английский

Citations

16
Dietary foundations for pollinators: nutritional profiling of plants for bee health DOI Creative Commons

Khara W. Stephen,

Katherine D. Chau, Sandra M. Rehan

et al.

Frontiers in Sustainable Food Systems, Journal Year: 2024, Volume and Issue: 8

Published: June 26, 2024

Human activities, including urban expansion, intensive farming practices, and the application of pesticides have significantly reshaped bee habitats. Understanding nutritional content pollen, primary source bees’ proteins lipids, is important for maintaining their diet health. In this study, we set out to determine composition pollen from various plant families genera. Our objectives were analyze levels non-esterified fatty acids (NEFAs), amino (AAs), protein-to-lipid (P:L) ratios, omega-6:3 ratios 57 species native North America. These data suggest a potential trade-off between NEFA AA within suggesting that diverse floral may benefit bees more than single source. The profiles showed considerable diversity, with all providing essential (EAAs) required health, except methionine which was lacking in Rhus glabra pollen. family Asteraceae especially abundant EAAs. P:L varied widely further emphasizing need access array profiles. There no overall differences introduced species. This study highlights significance resources meet comprehensive needs bees, contributing support pollinator populations broader ecological system.

Language: Английский

Citations

4
Pollen-Derived Fatty Acids and Amino Acids Mediate Variance in Pollinator Visitation DOI

Anne F. Murray,

Sara D. Leonhardt, Jane C. Stout

et al.

Journal of Chemical Ecology, Journal Year: 2025, Volume and Issue: 51(1)

Published: Jan. 24, 2025

Language: Английский

Citations

0
Variation in the pollen diet of managed bee species across European agroecosystems DOI Creative Commons
Clément Tourbez, Antoine Gekière,

Irene Bottero

et al.

Agriculture Ecosystems & Environment, Journal Year: 2025, Volume and Issue: 383, P. 109518 - 109518

Published: Feb. 14, 2025

Language: Английский

Citations

0
A machine-learning approach to optimize nutritional properties and organic wastes recycling efficiency conversed by black soldier fly (Hermetia illucens) DOI Creative Commons
Shasha Feng, Hongyan Ma, Chuan Wu

et al.

Bioresource Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132254 - 132254

Published: Feb. 1, 2025

Language: Английский

Citations

0