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   Rhamnus alaternus (乔木) English   
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         一般影响

    银边意大利鼠李(Rhamnus alaternus)是一种入侵海岸和森林的树木,会形成密集的植群,排斥其它所有植被(北国区域市政局)。因为它的生长速度快于大多数本地灌木和树木,银边意大利鼠李(Rhamnus alaternus)会迅速占据岛屿,排除所有森林类型中的亚树冠层树种,树冠层较低时也会渗入树冠层(沃瑟斯庞和沃瑟斯庞 2002)。



         地点特有的影响:
    Motutapu Is. (New Zealand) English 
    改变演化模式: Rhamnus is the worst invasive because it forms a dominant, dense under-story on the southern and western cliffs of Motutapu, and it has also become a major component of the under-story on Rangitoto, near Islington Bay (Miller et al 1994).
    Rangitoto Is. (New Zealand) English 
    改变演化模式: Rhamnus is the worst invasive because it forms a dominant, dense under-story on the southern and western cliffs of Motutapu, and it has also become a major component of the under-story on Rangitoto, near Islington Bay (Miller et al 1994).

    降低本地生物多样性: Wotherspoon and Wotherspoon (2002) state that without a substantial control programme for R. alaternus it is a fair expectation that it will spread across the remainder of Rangitoto, dominating and excluding pohutukawa (Metrosideros excelsa) from what are now open lava fields.



ISSG Landcare Research NBII IUCN University of Auckland