德国康斯坦茨大学Anja Weidenmüller研究团队近日取得一项新成果。经过不懈努力，他们的研究发现草甘膦会损害大黄蜂的体温调节能力。相关论文于2022年6月3日发表在《科学》杂志上。

研究人员探究了全球范围内最常用除草剂草甘膦对大黄蜂的影响。大黄蜂种群通过活跃的产热维持其在高温下的育雏，这是种群生存和繁殖的先决条件。使用群体内比较方法来检测长期暴露于草甘膦对个体和集体体温调节的影响，研究发现虽然草甘膦对个体层面的影响较弱，但其导致维持种群必要高育雏温度的能力下降，并且在资源限制期间减少可达25%以上。对于在生态系统中遭受重重压力的传粉者来说，接触草甘膦会在很大程度上会产生被忽视的隐性成本。

据悉，昆虫面临着众多人为的压力源，其生物多样性下降对全球生态系统和经济产生负面影响。

附：英文原文

Title: Glyphosate impairs collective thermoregulation in bumblebees

Author: Anja Weidenmüller, Andrea Meltzer, Stefanie Neupert, Alica Schwarz, Christoph Kleineidam

Issue&Volume: 2022-06-03

Abstract: Insects are facing a multitude of anthropogenic stressors, and the recent decline in their biodiversity is threatening ecosystems and economies across the globe. We investigated the impact of glyphosate, the most commonly used herbicide worldwide, on bumblebees. Bumblebee colonies maintain their brood at high temperatures via active thermogenesis, a prerequisite for colony growth and reproduction. Using a within-colony comparative approach to examine the effects of long-term glyphosate exposure on both individual and collective thermoregulation, we found that whereas effects are weak at the level of the individual, the collective ability to maintain the necessary high brood temperatures is decreased by more than 25% during periods of resource limitation. For pollinators in our heavily stressed ecosystems, glyphosate exposure carries hidden costs that have so far been largely overlooked.

DOI: abf7482

Source: https://www.science.org/doi/10.1126/science.abf7482