2023-04-19 ペンシルベニア州立大学(PennState)
この研究は、3種類の管理システムで蜜蜂のパフォーマンスを比較し、有機養蜂の管理が持続可能であり、高い蜜蜂の生存率と蜂蜜の生産をサポートすることを初めて示したと研究者は述べています。
研究者たちは、蜜蜂のコロニーを管理する方法がストレスを和らげ、健康で生産的な蜜蜂を維持するのに重要であると指摘しています。この研究では、約300の蜜蜂のコロニーを調査し、化学物質を使用せずに有機的に管理されたコロニーと従来的な管理方法で管理されたコロニーを比較し、有機的に管理されたコロニーは化学物質を使用しないコロニーに比べ、冬の生存率が向上し、蜂蜜の生産量が増加することが示されました。
<関連情報>
- https://www.psu.edu/news/agricultural-sciences/story/organic-beekeeping-rivals-conventional-methods-bee-health-productivity/
- https://www.nature.com/articles/s41598-023-32824-w
有機的に管理されたミツバチのコロニーは、従来通りに管理されたコロニーと同様に健康で生産的であることを縦断的な実験により証明した A longitudinal experiment demonstrates that honey bee colonies managed organically are as healthy and productive as those managed conventionally
Robyn M. Underwood,Brooke L. Lawrence,Nash E. Turley,Lizzette D. Cambron-Kopco,Parry M. Kietzman,Brenna E. Traver & Margarita M. López-Uribe
Scientific Reports Published:13 April 2023
DOI:https://doi.org/10.1038/s41598-023-32824-w
Abstract
Honey bee colony management is critical to mitigating the negative effects of biotic and abiotic stressors. However, there is significant variation in the practices implemented by beekeepers, which results in varying management systems. This longitudinal study incorporated a systems approach to experimentally test the role of three representative beekeeping management systems (conventional, organic, and chemical-free) on the health and productivity of stationary honey-producing colonies over 3 years. We found that the survival rates for colonies in the conventional and organic management systems were equivalent, but around 2.8 times greater than the survival under chemical-free management. Honey production was also similar, with 102% and 119% more honey produced in conventional and organic management systems, respectively, than in the chemical-free management system. We also report significant differences in biomarkers of health including pathogen levels (DWV, IAPV, Vairimorpha apis, Vairimorpha ceranae) and gene expression (def-1, hym, nkd, vg). Our results experimentally demonstrate that beekeeping management practices are key drivers of survival and productivity of managed honey bee colonies. More importantly, we found that the organic management system—which uses organic-approved chemicals for mite control—supports healthy and productive colonies, and can be incorporated as a sustainable approach for stationary honey-producing beekeeping operations.
