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   Chromolaena odorata (草本植物) English  français   
生態 分佈 管理 影響 參考資料 聯繫


         一般影響

    香澤蘭會密集生長,其競爭壓力與異株克生效應,會抑制其他植物的生長空間。棲地受干擾時才有機會入侵。天候乾燥時,是助長野地發生火災的燃料之一(PIER, 2003)。對過敏的人來說,香澤蘭也會引起皮膚不適或氣喘等徵狀。在耕地與適於種植農作物的土地中它是主要的雜草, 包括橡皮、油棕、林業與咖啡的耕地。

    C. odorata也是一個國家公園的雜草。在南非聖露西雅窪地公園,它被指會干擾自然生態系統。築巢尼羅河鱷魚(請參閱Crocodylus niloticus在 IUCN 紅皮書 )需要開放、晴朗, 沙地在哪裡產卵。 C. odorata會遮蔽、佔去築巢地點,其纖維的簇根不適於蛋室與築巢工程。以及改變這個自然棲息地, C. odorata的樹蔭會使水溫降低,低溫會影響任何已經建好的巢,會使得產下的後代大多是雌性,可能也會阻礙許胚胎發展(Leslie and Spotila 2001)。




         地點特有的影響:
    Greater St Lucia Wetland Park (South Africa) English 
    生態系統變化: Chromolaena odorata is reported to interfere with natural ecosystem processes in the Greater St. Lucia Wetland Park. Nesting Nile crocodiles (see Crocodylus niloticus in IUCN Red List of Threatened Species) require open, sunny, sandy areas in which to deposit their eggs. C. odorata shades and overtakes nesting sites creating fibrous root mats unsuitable for egg chamber and nest construction. As well as altering this natural habitat C. odorata produces shade resulting in colder temperatures in any nests that do get constructed, an effect that produces a female-biased sex ratio in the offspring as well as perhaps preventing embryonic development altogether (Leslie and Spotila 2001).



ISSG Landcare Research NBII IUCN University of Auckland