2007-08-012024-05-17https://scholars.lib.ntu.edu.tw/handle/123456789/693129摘要：過去及十年來，全世界的科學家為了要進一步預測與防治外來物種對環境及經濟 所造成的衝擊，紛紛致力於研究外來物種的入侵性(invasiveness)，藉由瞭解外來 入侵物種的入侵性而找出有效的管理策略。然而，與入侵性直接相關的生物特徵 (biological traits)卻長期缺乏資料, 嚴重的阻礙了對外來入侵植物的了解與研 究。因此，本計畫將針對此一缺失，以五種入侵表現程度不同的豆科(Fabaceae) 野百合屬(Crotalaria)的歸化入侵植物為材料，研究其與入侵性相關的生物特徵， 包括生活史特徵(life history traits)、生長(growth)、以及繁殖(reproduction)，期望 能藉此對生物的入侵機制有更進一步的瞭解。在過去，相關的研究多利用比較本 土與外來植物的生物特徵而推測可能的入侵性，然而此一法並不能屏除生物之間 原有的親緣差異所造成的影響。因此，本計畫將首次利用親緣關係相近(congeners) 且具有不同入侵能力的物種來探討入侵性與生物特徵之間的關係，以期能夠對入 侵性與生物特徵有更詳盡的研究與瞭解。基本調查與材料採集將在研究期間於野 外進行，另外，溫室及田園實驗則將分在國立台灣師範大學的溫室進行。 <br> Abstract: Numerous studies have been conducted to approach invasiveness of exotic plant species in order to predict the impacts and control strategies all over the world; however, lacking of biological information of most species becomes the major obstruction to estimate and model invasiveness. Therefore, we propose this project to search for the possible biological traits contributing to invasiveness, including life history traits, growth strategies, and reproduction for better understanding of plant invasions and invasive species. In order to access biological traits contributing to invasiveness, we would like to employ an innovative idea of sample selection, which recruits naturalized congeners with different levels of invasiveness to eliminate phenogenetic biases. Based on our previously comprehensive research on local naturalized flora, Crotalaria, a leguminous genus with five naturalized species with different levels of invasiveness will be studies for this project. Investigations and material collections will be implemented in the fields, and common garden and greenhouse experiments will be conducted in NTNU campus.外來物種野百合屬生活史特徵exotic plant speciesCrotalarialife history traits以豆科野百合屬歸化植物探討生物特徵與入侵性相關之研究