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   Alliaria petiolata (草本植物) English   
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    葱芥(Alliaria petiolata)能形成致密的植群,因为它没有天敌,它在受干扰地区的茂盛地生长。在美国东部和中西部的许多森林地区,葱芥会和原生植物竞争光线,养分,水分和土壤,淘汰掉原生植物。没有了这些宝贵的资源,依赖于这些原生植物为食物的野生动物只能离开(PCA, 2006)。葱芥会干扰珍稀蝶种Pieris napioleraceae和西维吉尼亚白蝴蝶产卵。雌虫产的卵可以孵化,但幼虫无法在葱芥丛中完成发育(NatureServe. 2007)。

    United States (USA) English 
    栖地改变: In many forest areas of the eastern and midwestern USA, Alliaria petiolata outcompetes native plants for light, nutrients, moisture and soil. Wildlife species dependant on these native plants for food are left without these valuable resources (PCA, 2006). The presence of garlic mustard interferes with oviposition of the rare native butterflies Pieris napi oleraceae and West Viginia white butterfly (please see Pieris virginiensis for more details on its conservation status). The native hosts of P. napi oleraceae and P. virginiensis are toothworts Cardamine concatenata [Dentaria laciniata] and Cardamine [Dentaria] diphylla. Eggs laid by females hatch but larvae are unable to complete development on garlic mustard (NatureServe. 2007).

    生态系统变化: Garlic mustard is one of the few non-indigenous herbaceous species able to invade and dominate the understory of North American forests.

ISSG Landcare Research NBII IUCN University of Auckland