大气中CO2的升高会改变带有花粉的树花的多元素固态度,可能对蜜蜂产生负面影响
Zuzanna M Filipiak1, Carolina Mayoral2,3, Sophie A Mills2,4
1Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland. zuzanna.filipiak@uj.edu.pl.
Oecologia
|September 8, 2024
概括
大气中二氧化碳 (CO2) 的增加改变了树花粉的元素组成,减少了和硫等必需的营养素. 这种营养稀释给蜜蜂带来了固体测量挑战,影响了它们的营养,并可能影响生态系统.
科学领域:
- 生态生态学 生态生态学
- 环境科学 环境科学
- 生物地质化学生物地质化学
背景情况:
- 大气中二氧化碳水平的上升会影响植物的营养质量.
- 生态石化测量为研究二氧化碳对植物与授粉者相互作用的影响提供了一个框架.
- 花粉中的营养含量对蜜蜂健康和生态系统功能至关重要.
研究的目的:
- 为了研究自由空气二氧化碳丰富 (FACE) 对英格兰树 (Quercus robur) 花粉的元素组成的影响.
- 为了评估树花粉营养素与关键蜜蜂物种的需求之间的史泰基度不匹配.
- 了解改变花粉固态度对气候变化下的蜜蜂营养的影响.
主要方法:
- 利用成熟的温带森林FACE设施,将树暴露在高二氧化碳 (eCO2) 的环境中.
- 在树花粉中测量了12种元素 (C, N, P, S, K, Na, Ca, Mg, Cu, Zn, Fe, Mn) 的度.
- 基于花粉元素组成和已知的营养需求,计算了Osmia bicornis和Apis mellifera的固体测量不匹配.
主要成果:
- 升高的CO2显著降低了树花粉中的硫 (S), (K) 和铁 (Fe) 度.
- 在eCO2下,花粉的多元素比率发生了变化,元素之间的反应各不相同.
- 在eCO2下,在花粉中观察到 (P) 和硫 (S) 的固体测量不匹配,这表明蜜蜂可能存在营养缺陷.
结论:
- 由于二氧化碳导致花粉元素固态度的变化,可能导致蜜蜂的营养限制.
- 在高二氧化碳下改变花粉质量可能会对更高的热量水平产生级联影响.
- 需要进一步的研究才能充分理解气候变化对植物-传粉者营养动态的影响.
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