通过引入的生物控制剂透到夏威夷社区
1School of Biological Sciences, University of Bristol, Woodland Road, Bristol BS8 1UG, UK.
概括
引入的生物控制剂对夏威夷本土生态系统产生了重大影响. 这项研究表明,即使是历史的生物控制剂也可以在本地种群中引起大量的寄生虫,这强调了需要仔细评估风险的必要性.
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:
- 引入的物种可能会破坏本地生态系统.
- 生物控制剂通常用于管理入侵物种.
- 了解生物控制剂对生态的影响对于保护至关重要.
研究的目的:
- 调查在夏威夷原生森林中引入的生物控制剂对整个社区的影响.
- 量化植物,和寄生虫之间的相互作用.
- 评估历史生物控制剂对本地虫种群的影响.
主要方法:
- 构建定量食物网以说明生态相互作用.
- 从本地飞中培养寄生虫来识别物种组成.
- 通过不同类型的寄生虫对寄生虫病率的量化.
主要成果:
- 83%的寄生虫被确定为生物控制剂.
- 在某些本地物种中,生物控制剂的寄生率高达28%.
- 所有已识别的生物控制剂都是在1945年之前释放出来的,这表明长期影响.
结论:
- 引入的生物控制剂对本地社区施加了重大压力.
- 生物控制剂的影响必须与目标入侵物种一起评估.
- 生物控制引入的长期生态后果需要仔细考虑.
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