环境暴露于金属污染会损害蜜蜂大脑的发育和认知能力
Coline Monchanin1, Erwann Drujont2, Gaël Le Roux3
1CNRS, University Paul Sabatier, Toulouse III, France; Research Center on Animal Cognition (CRCA), Center for Integrative Biology (CBI), University Paul Sabatier, Toulouse III, France; Department of Biological Sciences, Macquarie University, NSW, Australia.
Journal of hazardous materials
|December 19, 2023
概括
来自前金矿的金属污染物对蜜蜂的认知和大脑发育产生了负面影响. 这项实地研究突出了受污染地区蜜蜂种群的风险,特别是.
科学领域:
- 环境毒理学环境毒理学
- 神经伦理学 神经伦理学
- 生态毒理学 生态毒理学
背景情况:
- 实验室研究表明,金属污染物会损害无脊椎动物的行为和认知,即使在低度.
- 蜜蜂种群面临环境压力因素,影响它们的生态作用.
研究的目的:
- 调查历史矿山金属和金属化物污染对西方蜜蜂 (Apis mellifera) 行为和神经发育的影响.
- 评估环境污染物对重要的授粉者种群构成的潜在风险.
主要方法:
- 现场研究分析了来自法国南部前一座金矿附近的蜂巢的1000多只蜜蜂.
- 评估嗅觉学习表现和3D脑成像,以量化头部和嗅觉中心的大小.
- 对金属和金属化物污染梯度的环境样本的分析.
主要成果:
- 矿山附近的蜜蜂显示,嗅觉学习能力下降了36%.
- 来自受污染地区的蜜蜂的头部小了4%,大脑嗅觉中心小了4%.
- 有证据表明,神经发育问题与矿场和相关污染物 (尤其是) 的接近有关.
结论:
- 采矿活动造成的环境污染对蜜蜂健康构成重大风险,影响认知和神经发育.
- 标准化认知测试可以作为生态研究中环境风险评估的有效工具.
- 迫切需要注意减轻重金属污染对授粉者种群和生态系统健康的影响.
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