Pollen nutrition structures bee and plant community interactions

Proceedings of the National Academy of Sciences, Год журнала: 2024, Номер 121(3)

Опубликована: Янв. 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.

Язык: Английский

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Biopesticides and insect pollinators: Detrimental effects, outdated guidelines, and future directions

The Science of The Total Environment, Год журнала: 2022, Номер 837, С. 155714 - 155714

Опубликована: Май 4, 2022

Язык: Английский

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The Key Role of Amino Acids in Pollen Quality and Honey Bee Physiology—A Review

Molecules, Год журнала: 2024, Номер 29(11), С. 2605 - 2605

Опубликована: Июнь 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.

Язык: Английский

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The nutritional landscape in agroecosystems: a review on how resources and management practices can shape pollinator health in agricultural environments

Annals of the Entomological Society of America, Год журнала: 2023, Номер 116(5), С. 261 - 275

Опубликована: Июль 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.

Язык: Английский

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Plants other than animal-pollinated herbs provide wild bees with vital nutrients

Global Ecology and Conservation, Год журнала: 2024, Номер 52, С. e02984 - e02984

Опубликована: Май 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

Язык: Английский

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Extreme heat exposure of host plants indirectly reduces solitary bee fecundity and survival

Proceedings of the Royal Society B Biological Sciences, Год журнала: 2024, Номер 291(2025)

Опубликована: Июнь 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.

Язык: Английский

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Dietary foundations for pollinators: nutritional profiling of plants for bee health

Frontiers in Sustainable Food Systems, Год журнала: 2024, Номер 8

Опубликована: Июнь 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.

Язык: Английский

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Sterol and lipid metabolism in bees

Metabolomics, Год журнала: 2023, Номер 19(9)

Опубликована: Авг. 29, 2023

Abstract Background Bees provide essential pollination services for many food crops and are critical in supporting wild plant diversity. However, the dietary landscape of pollen sources social solitary bees has changed because agricultural intensification habitat loss. For this reason, understanding basic nutrient metabolism meeting nutritional needs is becoming an urgent requirement agriculture conservation. We know that principal source fat sterols pollinators, but a precise what nutrients how much needed not yet clear. Sterols key producing hormones control development may be present cell membranes, where fatty-acid-containing species important structural signalling molecules (phospholipids) or to supply, store distribute energy (glycerides). Aim review In review, we examine current general sterol lipid from variety literature discuss implications bee health. Key scientific concepts found while eusocial resilient some variation supply scope limited. The evidence both de novo lipogenesis need particular fatty acids (FAs) shows FA insects analogous mammals with distinct features. rely on their intake lipids way dependent upon availability.

Язык: Английский

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

Journal of Chemical Ecology, Год журнала: 2025, Номер 51(1)

Опубликована: Янв. 24, 2025

Язык: Английский

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Variation in the pollen diet of managed bee species across European agroecosystems

Agriculture Ecosystems & Environment, Год журнала: 2025, Номер 383, С. 109518 - 109518

Опубликована: Фев. 14, 2025

Язык: Английский

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