Laboratory of Soil Biodiversity, University of Neuchâtel, Rue Emile-Argand 11, 2000 Neuchâtel, Switzerland.
Botanical Garden of Neuchâtel, Pertuis-du-Sault 58, 2000 Neuchâtel, Switzerland.
Science. 2017 Oct 6;358(6359):109-111. doi: 10.1126/science.aan3684.
Growing evidence for global pollinator decline is causing concern for biodiversity conservation and ecosystem services maintenance. Neonicotinoid pesticides have been identified or suspected as a key factor responsible for this decline. We assessed the global exposure of pollinators to neonicotinoids by analyzing 198 honey samples from across the world. We found at least one of five tested compounds (acetamiprid, clothianidin, imidacloprid, thiacloprid, and thiamethoxam) in 75% of all samples, 45% of samples contained two or more of these compounds, and 10% contained four or five. Our results confirm the exposure of bees to neonicotinoids in their food throughout the world. The coexistence of neonicotinoids and other pesticides may increase harm to pollinators. However, the concentrations detected are below the maximum residue level authorized for human consumption (average ± standard error for positive samples: 1.8 ± 0.56 nanograms per gram).
越来越多的证据表明全球授粉媒介数量正在减少，这引起了人们对生物多样性保护和生态系统服务维护的关注。新烟碱类杀虫剂已被确定或怀疑是导致这种减少的一个关键因素。我们通过分析来自世界各地的 198 份蜂蜜样本，评估了授粉媒介接触新烟碱类杀虫剂的全球情况。我们发现，在所有样本中，至少有 5 种测试化合物中的 1 种（噻虫胺、噻虫啉、吡虫啉、噻虫嗪和噻虫酰胺），75%的样本中含有两种或两种以上的化合物，10%的样本中含有四种或五种化合物。我们的结果证实了蜜蜂在其食物中接触新烟碱类杀虫剂的情况在全球范围内存在。新烟碱类杀虫剂和其他杀虫剂的共存可能会增加对授粉媒介的伤害。然而，检测到的浓度低于授权人类食用的最大残留限量（阳性样本的平均值±标准误差：1.8±0.56 纳克/克）。
