营养的几何框架能揭示出花粉中的宏观营养素如何塑造单独的蜜蜂的食和生存吗?
Jaya Sravanthi Mokkapati1, Natalie Boyle1, Pierre Ouvrard2
1Department of Entomology, Center for Pollinator Research, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA 16802, USA.
Royal Society open science
|August 14, 2025
概括
孤独的蜜蜂, Megachile rotundata,在花粉中寻找特定的蛋白质与脂质比率的料. 它们优化营养摄入以求生存,与营养几何框架 (NGF) 保持一致.
科学领域:
- 行为生态学 行为生态学
- 营养生态学 营养生态学
- 授粉者生物学 授粉者生物学
背景情况:
- 营养几何框架 (NGF) 建议动物平衡宏观营养素摄入量.
- 花粉是蜜蜂的重要蛋白质和脂质来源,营养含量可变.
- 以前的研究表明,大黄蜂根据其对宏观营养素的需求来食.
研究的目的:
- 为了调查单独的蜜蜂种类,Megachile rotundata,是否附着在NGF.
- 为了确定M. rotundata是否表现出宏观营养素偏好并调节摄入量.
主要方法:
- 使用Capsella植物系的半场实验,花粉蛋白与脂质 (P:L) 的比例各不相同.
- 实验室研究使用合成饮食提供不同的P:L比率.
- 配对选择养实验,以评估营养调节.
主要成果:
- 访问M. rotundata与较高的花粉蛋白含量有关.
- 蜜蜂在中期P:L比例饮食 (5:1和10:1) 时的消耗和生存率最高.
- 营养调节导致平均P:L摄入量为6.6:1±1.6.
结论:
- M. rotundata 显示了特定的宏观营养素偏好和摄入量调节.
- 食行为与NGF原则保持一致,优化营养摄入.
- 了解蜜蜂对宏观营养素的需求对于植物传粉者网络的演变和保护至关重要.
相关概念视频
Optimal Foraging
12.5K
How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
12.5K
Pollination and Flower Structure
68.3K
Flowers are the reproductive, seed-producing structures of angiosperms. Typically, flowers consist of sepals, petals, stamens, and carpels. Sepals and petals are the vegetative flower organs. Stamens and carpels are the reproductive organs.
68.3K
Energy Budgets
9.7K
Organisms must balance energy intake with the energy required for growth, maintenance and reproduction. These trade-offs result in a variety of survivorship and reproductive strategies, including semelparity and iteroparity. Semelparous species, like annual plants, have only one reproductive episode in their lifetimes and consequently have short lifespans. Iteroparous species, by contrast, have many reproductive events during their lifetimes but have relatively few offspring. These two...
9.7K
Inclusive Fitness
36.3K
Most altruistic behavior—in which one animal helps another at a cost to themselves—occurs between relatives. Scientists think these altruistic behaviors evolved because they increase the inclusive fitness of the animal providing help.
36.3K
Frequency-dependent Selection
22.2K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
22.2K


