通过深度测序方法揭示了一种入侵性黄蜂的广泛生态威胁
Siffreya Pedersen1, Peter J Kennedy2, Thomas A O'Shea-Wheller2
1Biosciences, Geoffrey Pope Building, University of Exeter, Stocker Road, Exeter EX4 4QD, UK.
The Science of the total environment
|March 4, 2025
概括
侵入性亚洲大黄蜂 (Vespa velutina nigrithorax) 捕食各种无脊椎动物,包括蜜蜂和野生授粉者. 这项研究揭示了其广泛的饮食,强调了其在欧洲传播期间的生态风险.
科学领域:
- 生态生态学 生态生态学
- 侵入性物种 生物学 生物学
- 分子生态学分子生态学
背景情况:
- 陆地无脊椎动物面临着衰退,被入侵物种加剧.
- 亚洲黄蜂 (Vespa velutina nigrithorax) 正在扩大其在西欧的范围.
- 虽然已知对蜜蜂的影响,但大黄蜂的更广泛的饮食和生态影响尚未得到充分研究.
研究的目的:
- 为了进行第一个大规模调查Vespa velutina的饮食.
- 用幼虫肠道内容的深度测序来描述大黄蜂的猎物谱.
- 评估Vespa velutina在欧洲范围内的掠食活动对生态的影响.
主要方法:
- 来自新泽西,法国,西班牙和英国的1500多个幼虫肠道含量样本的深度测序.
- 捕食物品的分类学识别,以了解它们的食成分.
- 对猎物的多样性,丰富性和时空变化的分析.
主要成果:
- 确定了1449种不同的猎物种类,证明了Vespa velutina高度灵活的掠食行为.
- 蜜蜂 (Apis mellifera) 是最丰富的猎物,在蜂巢附近的检测率更高.
- 50种最常见的猎物中有43种是花访客,包括大黄蜂,这表明野生授粉者面临的风险.
结论:
- 维斯帕·韦鲁蒂纳表现出广泛而灵活的饮食,促进其持续扩展范围.
- 黄蜂对蜜蜂养殖和野生授粉者种群构成重大风险.
- 这些发现支持在欧洲对这种入侵物种进行全面的风险评估.
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