量化侵入性黄蜂对Bombus terrestris殖民地的影响
Thomas A O'Shea-Wheller1, Robin J Curtis2, Peter J Kennedy2
1Environment and Sustainability Institute, University of Exeter, Penryn, Cornwall, TR109FE, United Kingdom. t.a.oshea-wheller@exeter.ac.uk.
Communications biology
|October 5, 2023
概括
侵入性亚洲大黄蜂 (Vespa velutina nigrithorax) 对欧洲大黄蜂 (Bombus terrestris terrestris) 构成了威胁. 更高的黄蜂密度会对大蜂群的体重产生负面影响,这表明对生长有间接影响.
科学领域:
- 生态生态学 生态生态学
- 昆虫学 昆虫学是一门学科.
- 保护生物学 保护生物学
背景情况:
- 侵入性亚洲大黄蜂Vespa velutina nigrithorax对欧洲的授粉者构成重大威胁.
- 虽然已知对蜜蜂的影响,但对其他授粉者 (如大黄蜂) 的影响尚不清楚.
- 饮食研究表明,Vespa velutina捕食各种昆虫,引发了对危物种的担忧.
研究的目的:
- 量化Vespa velutina对欧洲大黄蜂 (Bombus terrestris terrestris) 殖民地的影响.
- 研究大黄蜂密度与大黄蜂群体健康之间的关系.
- 为缓解策略提供殖民地层面影响的经验数据.
主要方法:
- 一个景观规模的实验部署了Bombus terrestris terrestris殖民地跨越不同的Vespa velutina密度.
- 自动追踪用于对蜜蜂和黄蜂行为的非侵入性观察.
- 定量化殖民地结果与大黄蜂的存在和密度相关.
主要成果:
- 维斯帕·韦鲁蒂纳经常在Bombus terrestris殖民地狩猎,被那些高食活动的人所吸引.
- 观察到入口的掠食企图,但始终没有成功.
- 在当地的Vespa velutina密度和Bombus terrestris殖民地重量之间发现了负相关性.
结论:
- 这项研究提供了第一个 Vespa velutina 对欧洲大黄蜂的殖民地级影响评估.
- 黄蜂密度对大黄蜂殖民地生长的间接影响是指定的.
- 这些发现对于制定野生和经营授粉者减缓策略至关重要.
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