此物種詳細資訊 United States (USA)
來源： Silander and Klepeis, 1999.
Japanese barberry was introduced to the United States in the late 1800s. It was being used as an ornamental by the 1920s. It had started spreading from gardens to the wild and by the 1960s had dispersed widely to the northeast. it was recognized as a problem invasive by the 1970s. It thrives under varied light and soil moisture conditions and is known to set seed under low light levels. Birds are the primary dispersal agents.
Studies show that Glyphosate (Roundup) applied in early spring at first leaf out, (when not many other species are in leaf) is an effective means of eradicating Japanese barberry populations.
競爭: Berberis thunbergii has negative impacts on co-occuring species by suppressing biomass production. It is observed that recovery of these species after japanese barberry removal is slow except under high light conditions. Japanese barberry forms dense stands in a variety of habitats, and becuase of its shade-tolerance it displaces a variety of native herb and shrub species in areas where it is well established (Swearingen et al 2002).
最後修改 ： 16/10/2004 10:58:48 a.m.