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題 名 | 以食餘分析探討宜蘭地區度冬遊隼的獵食偏好=Analyzing Food Remains to Reveal Prey Preference of Wintering Peregrine Falcon in Yilan County, Taiwan |
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作 者 | 黃俊賓; 何華仁; 黃仲霙; 許育誠; | 書刊名 | 臺灣猛禽研究 |
卷 期 | 14 2013.05[民102.05] |
頁 次 | 頁1-20+36_4-36_5 |
分類號 | 388.892 |
關鍵詞 | 遊隼; 食餘; 食性; Peregrine Falcon; Falco peregrinus; Food remains; Diet; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究收集宜蘭地區度冬遊隼("Falco peregrines")的食餘與當地鳥類調查資料,檢視食餘中的獵物種類,以瞭解遊隼食性與其偏好的獵物類型。自2010年11月至2011年5月,共在宜蘭6處地區的電塔發現遊隼蹤跡,調查範圍內至少有7隻遊隼在此活動。在遊隼停棲的電塔下採集了食餘,鑑定分析出至少436隻個體,以鳥類為主要獵物。包括鳥類20科387隻、兩棲類2科2隻、爬蟲類3科4隻、哺乳類2目6隻、昆蟲1科1隻、魚類1目9隻、其他不確定類群獵物27隻;遊隼停棲點週邊的鳥類調查則紀錄到34科83種鳥類共12,541隻次。比較鳥類調查與食餘分析資料,發現遊隼顯著偏好獵捕鴿子("Columba livia"),在12月至次年4月期間鴿子在食餘中的比例都顯著高於環境中鴿子的比例,但5月份遊隼則對獵捕鴿子無顯著偏好。除了美福樣區外,另5個樣區的遊隼均偏好獵捕鴿子,而次要獵物的種類可能與周圍環境的物種有關。 |
英文摘要 | This study aims to understand the prey preference of wintering Peregrine Falcons ("Falco peregrines") in Yilan county, Taiwan. From November 2010 to May 2011, we collected food remains of the falcons from their perching sites; we also conducted avifauna survey from each perching site. Falcons from six sites were found roosting on electricity pylons, and at least seven individuals were identified wintering in the study area. From these prey remains, we identified 436 prey individuals which contained 387 birds from 20 families, two amphibians from two families, four reptiles from three families, six mammals from two orders, one insect and nine fish from one order, and 27 unidentified food remains. The avifauna surveys identified 83 species, 12,541 birds. By comparing the prey items and bird survey data, the Peregrine Falcon showed significant preference on pigeons ("Columba livia"). Monthly prey preference for pigeons was significant from December to April but insignificant in May. The Peregrine Falcon of five sites showed significant preference for pigeons, except the falcon at May-fu site. When excluding pigeons, prey preference showed differences among sites, tending to hunt for abundant prey species. |
本系統中英文摘要資訊取自各篇刊載內容。