敌人释放的力量有多大? 一个系统的编译跨分类和方法
Karen Zeng1, Jessica Schembri1, Eve Slavich2
1Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, New South Wales, Australia.
Ecology
|January 14, 2026
概括
引入的物种在新环境中经常面临更少的捕食者和病原体,支持敌人释放假说. 然而,这种减少的敌人压力并不总是导致入侵物种更高的适应性.
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
- 生物地理学是生物地理学.
背景情况:
- 敌人释放假说表明入侵物种在新的范围逃脱自然敌人.
- 了解敌人释放对于预测入侵物种的成功和管理生物控制至关重要.
研究的目的:
- 系统地审查和量化不同种类和生态系统的敌人释放.
- 评估敌人释放对入侵物种健康的影响,并确定影响其强度的因素.
主要方法:
- 进行了对691个来自全球水上和陆地系统的敌人释放对比的系统性审查.
- 分析了生物地理对比 (原生与引入范围) 和社区对比 (原生与引入物种).
- 检查了敌人的多样性,敌人的伤害和主机健身指标.
主要成果:
- 引入的物种经历了明显较低的敌人压力 (43%在生物地理,70%在社区对比).
- 三分之一的案例显示,在引入的范围内,敌人的压力更高.
- 释放敌人与减少敌人的多样性和伤害有关,但与增加主机健康无关.
- 生物地理敌人释放量因分类而异,在软体动物和鱼类中较高,在昆虫和藻类中较低.
结论:
- 敌人释放是一个常见的现象,但它对入侵物种健康状况的影响是可变的.
- 降低敌人的压力并不总是赋予一个健身优势.
- 了解特定类别的敌人释放可以为生物控制策略和入侵物种管理提供信息.
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