本研究結合傳統的繫放工作所測量之形質資料、穩定性氫同位素組成分析δD及DNA性別鑑定來探討北大武山研究樣區之繡眼畫眉( Alcippe morrisonia)繁殖地所在之海拔分布、不同季節間與海拔遷移之方向、性別上的差異性遷移的行為以及海拔、季節等因素與繫放之繡眼畫眉所得的基本測量形質之間的關係。期間從2009年9月1日至2010年02月28日為止,採取所繫放之繡眼畫眉形質資料、尾羽以及血液樣本以進行研究分析。結果發現,繡眼畫眉應該屬於在繁殖地繁殖後換羽的鳥種,而在北大武山研究樣區所捕獲之繡眼畫眉繁殖地海拔分布介於海拔715公尺至1390公尺之間,沒有獲得來自海拔超過1400公尺以上的個體且各季節間繡眼畫眉遷移方向無顯著差異。推其原因可歸究於各季節間皆存在著追逐性遷移、逃避性遷移以及幼鳥的播遷,而食物對繡眼畫眉遷移的影響可能遠高於氣溫的因素。同時在研究中發現公母繡眼畫眉發生了差異性遷移的行為,推測公鳥儘可能在遷移時貼近繁殖期自我的繁殖領域,以取得下一季繁殖的時間優勢。此外相關基本測量形質可能因尺度過窄無法看出Allen’s Rule及Bergmann’s Rule在繡眼畫眉族群的影響。季節間部分與飛行有關之基本測量形質出現顯著差異,然其原因可能為羽毛輕微磨損或人為實驗誤差所致,故對於繡眼畫眉實際遷移力的影響,可能需進一步研究探討。
This study combined the work of banding with stable hydrogen isotope analysis and DNA sexual detection. The purposes were to examine the altitudinal distribution of Gray-cheeked Fulvetta’s (Alcippe morrisonia) breeding area, migration direction in different seasons, differential migration between sexes and the relationships between the bird’s body measurements and altitude and season in Peitawushan. To obtain the data of the species’ body measurements and the rectrix and blood samples for analysis from Septemper 2009 to February 2010. Results showed that he Fulvetta molted after breeding in the breeding area. Chance is good that birds from >1400 m a.s.l. did not migrate downward to my study site; no fixed direction of altitudinal migration was found between seasons, a possible reason of pursuing movement, escape movement and juvenile dispersal happened during study period. Differential migration existed by sex; the male may be as close as possible to their breeding territory during migration to obtain the advantage in the next breeding season in time. Because the standard of judgment about altitude was too narrow, the study could not verify the Allen’s Rule or Bergmann’s Rule in this species; some measurements related to flight ability were different between seasons, but the reason may be resulted from feather abrasion or the measurement error. For this reason, the effect on the flight ability of Gray-cheeked Fulvetta needs further study.