The use of pesticides is one of the causes that contribute to the decline of bumblebees worldwide. Some effects of neonicotinoids are known on bumblebees from temperate climates; however, there are no studies carried out with species from tropical climates, in which there could be different effects since they have different ecological traits. We demonstrated that in a neo-tropical bumblebee, B. ephippiatus, exposed to field-realistic levels of imidacloprid, bee survival, and colony growth, were significantly reduced. The most important conclusion of our study is that tropical bumblebees are affected in a similar way to temperate species.

中文翻译：

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吡虫啉对新热带大黄蜂Bombus ephippiatus生存和筑巢的影响

杀虫剂的使用是导致全球大黄蜂数量减少的原因之一。已知新烟碱类对温带气候的大黄蜂有一些影响。然而，没有对来自热带气候的物种进行研究，因为它们具有不同的生态特征，因此可能会产生不同的影响。我们证明，在新热带大黄蜂中，B. ephippiatus暴露于实际水平的吡虫啉，蜜蜂存活率和菌落生长显着降低。我们研究最重要的结论是热带大黄蜂以与温带物种相似的方式受到影响。