Exchanges of enemies between native and non-native plants

本地植物和非本地植物之间的天敌交换

• 批准号: RGPIN-2016-06095
• 负责人: Kotanen, Peter
• 金额: $ 2.04万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=632088
• 关键词: Exchanges; enemies; between; native; non

Escape from native-range natural enemies (herbivores and pathogens) often is argued to increase the invasiveness of non-native plants, as described by the Enemy Release Hypothesis. However, once in a new region, exotic invaders acquire new enemies recruited from invaded-range species. As well, enemies from the invader's original range (including biocontrol agents) may be accidentally or deliberately co-introduced; these species also may attack local natives. As a result, few invaders are free of natural enemies, many of which are shared with co-occurring native plants.

逃离原生范围的天敌（食草动物和病原体）往往被认为是增加非原生植物的入侵性，如敌人释放假说所描述的。然而，一旦进入一个新的地区，外来入侵者就会从入侵范围内的物种中获得新的敌人。同时，来自入侵者原始范围的敌人（包括生物控制剂）可能是偶然或故意共同引入的;这些物种也可能攻击当地的土著人。因此，很少有入侵者是没有天敌的，其中许多是与共同发生的本土植物共享的。