Agriculturally important commercially managed pollinators including honey bees (Apis mellifera L., 1758) and bumble bees (Bombus impatiens Cresson, 1863) rely on the surrounding landscape to fulfill their dietary needs. A previous study in Europe demonstrated that managed honey bee foragers and unmanaged native bumble bee foragers are associated with different land uses. However, it is unclear how response to land use compares between managed honey bees and a managed native bumble bee species in the United States, where honey bees are an imported species. Furthermore, to our knowledge, no such direct comparisons of bee responses to land use have been made at the colony level. To better understand how two different social bees respond to variation in land use, we monitored the weights of A. mellifera and B. impatiens colonies placed in 12 apiaries across a range of land use in Michigan, United States in 2017. Bombus impatiens colonies gained more weight and produced more drones when surrounded by diverse agricultural land (i.e., non-corn/soybean cropland such as tree fruits and grapes), while honey bee colonies gained more weight when surrounded by more grassland/pasture land. These findings add to our understanding of how different bee species respond to agricultural landscapes, highlighting the need for further species-specific land use studies to inform tailored land management.

中文翻译：

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蜜蜂 (Apis mellifera) 群体受益于草原/牧场，而相同景观中的大黄蜂 (Bombus impatiens) 群体则受益于非玉米/大豆农田。


农业上重要的商业管理授粉昆虫，包括蜜蜂 (Apis mellifera L., 1758) 和大黄蜂 (Bombus impatiens Cresson, 1863) 依靠周围的景观来满足其饮食需求。欧洲之前的一项研究表明，受管理的蜜蜂采集者和不受管理的本地熊蜂采集者与不同的土地利用有关。然而，目前还不清楚在美国，管理的蜜蜂和管理的本土熊蜂物种对土地利用的反应如何，而美国的蜜蜂是进口物种。此外，据我们所知，尚未在蜂群水平上对蜜蜂对土地利用的反应进行直接比较。为了更好地了解两种不同的社会性蜜蜂如何应对土地利用的变化，我们监测了 2017 年美国密歇根州一系列土地利用中 12 个养蜂场中的蜜蜂蜂群和凤仙花蜂群的重量。当被不同的农业用地（即非玉米/大豆农田，如树果和葡萄）包围时，蜂群的重量会增加，并产生更多的无人机，而当被更多的草地/牧场包围时，蜂群的重量会增加。这些发现增加了我们对不同蜂种如何响应农业景观的理解，强调需要进一步进行特定物种的土地利用研究，以便为量身定制的土地管理提供信息。