一只野生大黄蜂对多种农药的敏感性表现出种内特异性
Anna R Tatarko1,2, Rachel L Vannette3, Steven Frese4
1Department of Biological Sciences, University of Nevada Reno, Reno, NV, USA.
Royal Society open science
|June 26, 2025
概括
野生蜜蜂的生存率因原产地而异,影响对草甘和伊米达克洛普里德等农药的敏感性. 肠道微生物无法解释Bombus vosnesenskii中的这些差异.
科学领域:
- 生态生态学 生态生态学
- 环境毒理学环境毒理学
- 昆虫生物学 昆虫生物学
背景情况:
- 野生授粉者种群正在减少,农药暴露是其中的一个重要因素.
- 农药敏感性和肠道微生物在野生蜜蜂中的作用的物种内变化仍未得到充分研究.
研究的目的:
- 调查原产地如何影响暴露于农药的野生大黄蜂 (Bombus vosnesenskii) 的生存和肠道微生物群.
- 为了确定农药类型 (除草剂,杀菌剂,杀虫剂) 或组合是否会根据蜜蜂的来源不同地影响生存.
主要方法:
- 野生Bombus vosnesenskii猎物从三个不同的地点收集:高山草地,山谷湖和郊区公园.
- 蜜蜂被维持在含有单个农药 (草甘,铁布可纳,伊米达克洛普里德) 或其组合的饮食中,并监测了生存率.
- 在不同地点和农药治疗中分析了肠道微生物组结构.
主要成果:
- 阿尔卑斯山蜜蜂的总生存率最高,其次是海岸线蜜蜂,然后是郊区蜜蜂,部分原因是身体大小和寄生虫的存在.
- 在暴露于除草剂,杀菌剂和联合杀虫剂治疗时,蜜蜂的生存受原产地显著影响.
- 没有发现肠道微生物组结构在农药治疗或 site-by-treatment相互作用中存在显著差异.
结论:
- 野生蜜蜂种群的起源是影响它们对农药暴露的敏感性的关键因素.
- 了解物种内部变异对于准确评估农药对野生授粉者的风险至关重要.
- 需要进一步的研究来探索野生蜜蜂对特定地点农药敏感性背后的机制.
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