全球入侵火的历史 火Solenopsis invicta的历史
Marina S Ascunce1, Chin-Cheng Yang, Jane Oakey
1USDA-ARS Center for Medical, Agricultural, and Veterinary Entomology, 1600/1700 Southwest 23rd Drive, Gainesville, FL, USA.
概括
在全球范围内,至少有9个不同的入侵性火 (Solenopsis invicta) 的引入事件发生. 美国南部的主要人口可能播下了大多数新的入侵,突出了全球贸易风险.
科学领域:
- 遗传学 是一个遗传学.
- 侵入性物种 生物学 生物学
- 全球贸易的影响.
背景情况:
- 红色进口火 (Solenopsis invicta) 是美国南部的主要入侵性害虫,并在全球传播.
- 了解入侵物种的遗传多样性和引入途径对于有效管理至关重要.
研究的目的:
- 为了调查Solenopsis invicta在全球范围内的遗传变异和引入历史.
- 确定S. invicta在全球新地区引入的起源和途径.
主要方法:
- 使用多种多样的分子标记物的基因变异的分析.
- 在全球75个地理位置采集了2144个火殖民地样本.
- 遗传学分析以推断引入事件和人口结构.
主要成果:
- 至少有九个不同的S. invicta在新入侵地区的引入事件被确定.
- 美国南部的主要人口似乎是所有这些引入的来源,除了其中一个.
- 确定了一个单一的连续入侵途径:美国南部到加利福尼亚到台湾.
结论:
- 全球贸易和旅行促进了诸如火之类的入侵物种的传播.
- 这些遗传数据揭示了复杂的入侵历史,并突出了全球生态系统的相互联系.
- 需要有效的生物安全措施来减轻入侵物种引入的负面影响.
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