Buchanan Amanda L, Gibbs Jason, Komondy Lidia, Szendrei Zsofia
Department of Entomology, Michigan State University, East Lansing, MI 48824, USA.
Insects. 2017 Mar 9;8(1):30. doi: 10.3390/insects8010030.
We conducted a bee survey in neonicotinoid-treated commercial potato fields using bowl and vane traps in the 2016 growing season. Traps were placed outside the fields, at the field edges, and 10 and 30 m into the fields. We collected 756 bees representing 58 species, with spp. comprising 73% of all captured bees. We found seven spp., of which was the only known visitor of potato flowers in our region. The majority of the bees (68%) were collected at the field edges and in the field margins. Blue vane traps caught almost four-times as many bees and collected 30% more species compared to bowl traps. Bee communities did not differ across trap locations but they were different among trap types. We tested visitation to neonicotinoid treated and untreated potato flowers in field enclosures. The amount of time bees spent at flowers and the duration of visits were not significantly different between the two treatments. Our results demonstrate that a diverse assemblage of bees is associated with an agroecosystem dominated by potatoes despite the apparent lack of pollinator resources provided by the crop. We found no difference in foraging behavior on neonicotinoid-treated compared to untreated plants.
2016年生长季，我们在使用了新烟碱类杀虫剂的商业化马铃薯田中，利用碗式诱捕器和风向标诱捕器开展了一项蜜蜂调查。诱捕器放置在田外、田边以及距田边10米和30米处的田内。我们共收集到756只蜜蜂，分属58个物种，其中 属蜜蜂占所有捕获蜜蜂的73%。我们发现了7种 属蜜蜂，其中 是我们区域内已知的唯一一种马铃薯花访客。大多数蜜蜂（68%）是在田边和田间边缘收集到的。与碗式诱捕器相比，蓝色风向标诱捕器捕获的蜜蜂数量几乎是其四倍，收集到的物种多30%。不同诱捕地点的蜜蜂群落没有差异，但不同诱捕类型的蜜蜂群落存在差异。我们在田间围栏中测试了 对用新烟碱类杀虫剂处理过和未处理过的马铃薯花的访花情况。两种处理下，蜜蜂在花朵上停留的时间和访花持续时间没有显著差异。我们的结果表明，尽管马铃薯作物明显缺乏传粉者资源，但仍有多种蜜蜂与以马铃薯为主导的农业生态系统相关联。我们发现，与未处理的植株相比，蜜蜂在新烟碱类杀虫剂处理过的植株上的觅食行为没有差异。
