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題名:Potential Asteraceae Invaders in Taiwan: Insights from the Flora and Herbarium Records of Casual and Naturalized Alien Species    
菊科外來歸化植物之入侵性初步探討
著者:Shan-Huah Wu(吳姍樺) ;Hsiang-Hua Wang(王相華)
出版地區:台灣
出版城市:台北市
學科:生命科學
刊名:Taiwania
卷期:50卷1期(2005.3)
頁碼:62-70
語言:英語
摘要: 中文摘要PDF ; 英文摘要PDF

有鑒於外來植物在侵入原、生環境之前皆須經過歸化(naturalization) 階段,本研究依 據先前所發表的台灣歸化植物名錄,針對歸化之葫料植物基本資料進行整理與探討,籍 以暸解潛在入侵菊科植物之生物特性及來源。並藉由分析標本記錄,預測菊科歸化植物 之入侵性(invasiveness) 。結果顯示,菊科歸化植物共有51 種,其中44% 為入侵物種, 然而,多數的物種的引進原因不明。美洲的熱帶地區是台灣菊科歸化植物的主要原生 地,歐洲及美洲溫帶地區其次。大多數的菊料歸化植物為一年生,入侵性強的多年生植 物則可能造成環境問題。這些外來的植物多以不同的速度擴散,即使是具有相同駐在時 間(minimum residence time) 的同屬種類,亦有不同的表現。據我們的推測及分析顯示, 此一不同的擴散趨勢,可作為這些物種入侵能力的指標。
Naturalization has been shown to be one of the primalγstages of plant invasions; therefore, studies on naturalized plant species may generate valuable insights of possible invad 巴rs and invasions. Background information of casual and naturalized Asteraceae species provided by a comprehensive Iist of casual and naturalized species in Taiwan was examined to estimate the basic biological traits and geological origins of potential invasive species in this study. Besides, herbarium records were collected and analyzed to predict the invasiveness of casual and naturalized Asteraceae species. Our results showed that 44.0% out of the 51 casual and naturalized Asteraceae species were c\assified as invasive in the field, and a notable portion of these species were probably introduced accidently. Tropical Americas were the most important origins of casual and naturalized Asteraceae 勻的ies , followed by Europe and temperate Americas. Most of the casual and naturalized Asteraceae species were annual herbs, and a few perennial species categorized as invasive may cause profound environmental problems. The herbarium record showed that species possessed different numbers of localities within the same time frame. We suggested that casual and naturalized Asteraceae species collected in more localities are more invasive than those species found in fewer localities within the same period oftime.


    

本卷期目次
Taiwania 50卷1期 (2005.3)
Notulae Goodyerinae (II)/ Paul Ormerod
Occurrence of the Earthworms Pontodrilus litoralis (Grube, 1855), Metaphire houlleti (Perrier, 1872), and Eiseniella tetraedra (Savigny, 1826) from Taiwan/ Huei-Ping ShenSu-Chen TsaiChu-Fa Tsai
The Merosporangiferous Fungi from Taiwan (V): Two New Records of Coemansia (Kickxellaceae, Kickxellales, Zygomycetes)/ Hsiao-Man HoChao-Hung Hsu
Notes on Three Newly Naturalized Plants in Taiwan/ Shih-Huei ChenMing-Jou Wu
Diatoms of the Mystery Lake, Taiwan (II)/ Yu-Fa WangJiunn-Tzong Wu
Cotoneaster dammeri Schneid. (Rosaceae): A New Record to the Flora of Taiwan/ Fu-Yuan Lu
Potential Asteraceae Invaders in Taiwan: Insights from the Flora and Herbarium Records of Casual and Naturalized Alien Species/ Shan-Huah WuHsiang-Hua Wang
 
   
 
   

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