A Review of the Biology of the Weedy Siberian Peashrub, Caragana Arborescens, with an Emphasis on Its Potential Effects in North America

雜草型樹錦雞兒（Caragana arborescens）之生物學綜論，特別著重其在北美洲的潛在影響

Katelyn B. Shortt ； Steven M. Vamosi

《Botanical Studies》 53卷1期 (2012/01) Pp. 1-8

摘要

引進外來物種及其定居咸認為是包括被子植物在內的原生生物多樣性的一大威脅。原產歐亞大陸的豆科植物「樹錦雞兒」於1700 年代中葉引進北美洲，歷經250 年這種植物幾乎已定居於加拿大全國和美國半數的州；但有關它對於原生生態系潛在影響的文獻卻不多見。為呼應加拿大卡加利市2009 年倡導的控制樹錦雞兒試驗計劃，我們就樹錦雞兒的生物學、民族植物學、對生態系之影響、與可能的控制的方法進行綜論，並提供證據表明樹錦雞兒對於生態的正面及負面影響及其利用。值得注意的是，持續的棲地退化與氣候變遷將促進樹錦雞兒在更多的地區成為入侵性的惡劣雜草。我們必需特別關注樹錦雞兒的全部分布區域，尤其是受到人為活動干擾的破碎棲地、新近毀林地區以及濕地。

關鍵字

生物控制 ； 樹錦雞兒 ； 生態系 ； 入侵種

並列摘要

The introduction and establishment of non-native species has been recognized as one of the most significant threats to the maintenance of native biodiversity in most taxa, including angiosperms. The Siberian peashrub, Caragana arborescens Lam. (Fabaceae), is native to Eurasia, but was introduced to North America in the mid-1700s. In the past 250 years, the species has become established in almost all of Canada, and approximately half of the states in the USA. However, the literature on its potential effects on native ecosystems is relatively sparse and scattered. To complement the Caragana Control Trials Project initiated by the City of Calgary (Alberta, Canada) in 2009, we review the biology, ethnobotany, ecosystem effects, and candidate control methods of C. arborescens. Perhaps unsurprisingly, we find evidence for both positive and negative effects and uses of C. arborescens. We caution that continued habitat degradation and climate change may facilitate C. arborescens becoming an invasive or noxious species in more areas with time. Finally, we advocate that more attention be paid to C. arborescens throughout its range, with special focus on habitat fragments, recently deforested areas, and wetlands impacted by human activities.

並列關鍵字

Biological control ； Caragana arborescens ； Ecosystem ； Fabaceae ； Invasive species