2013-08-012024-05-13https://scholars.lib.ntu.edu.tw/handle/123456789/654653摘要：氣候暖化會對生態系及人類社會產生嚴重威脅，且這威脅在近年內可能持續擴大。 目前氣候暖化的研究，多著重在現象的描述，缺乏對生態機制的深入探討，也尚未探討暖化是否會和其它的威脅 (e.g. 物種入侵) 相互作用。 了解這些未知的生態機制可以幫助我們預測全球暖化在本世紀的衝擊。 此研究計畫的宗旨在於檢驗暖化如何影響生態機制 (如暖化對個體生理、族群變動、種內及種間競爭的影響)，進而影響入侵物種與本土物種之間的關係。 我將研究兩個在台灣競爭的物種 (入侵種的紋白蝶 Pieris rapae及本土種的台灣紋白蝶 P. canidia) 在兩種主要食草上的競爭表現 (野生的葶藶 Rorippa indica及農業栽培的高麗菜 Brassica oleracea)。 我將利用野外調查及實驗室溫控實驗，深入探討暖化是否會影響兩種紋白蝶在兩種食草上的競爭結果 (第一及第二年)，再探討兩種蝴蝶的競爭強度是否會隨海拔改變，兩種蝴蝶是否已在不同海拔演化出特定的基因型，以及暖化對兩種蝴蝶的影響是否會隨著海拔而改變(第三及第四年)。 <br> Abstract: Climate warming, a serious threat to ecosystems and human society, is likely to become much more severe in near future. While the impact of climate warming on ecological patterns has been explicitly documented, we know relatively little about the ecological mechanisms through which climate warming affects organisms, populations, and community structure. In addition, we don’t know whether or how climate warming may interact with another big threat to ecosystems – species invasion. Understanding the knowledge gap will greatly improve our ability to predict the outcome of global warming in the 21st century. The goal of this study is to understand the consequences of climate warming for invasive and native species, by examining warming impact on various ecological mechanisms (e.g. warming effects on the physiology of individuals, population dynamics, intra- and inter-specific competition, or trophic interactions). In specific, I will study two competing butterfly species in Taiwan (the invasive Pieris rapae and the native P. canidia) on two of their major host plants (Rorippa indica and Brassica oleracea). Using both field survey and laboratory experiments, this study will investigate whether climate warming will affect the competition of these two butterfly species on two host plants (Year 1-2), whether the competition intensity between these two butterfly species changes with altitude, whether both butterfly species show intraspecific variation across altitude, and whether warming impact on these two butterfly species varies across altitude (Year 3-4).氣候暖化入侵物種本土物種海拔Climate warming Invasive species Native species Altitude