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頁籤選單縮合
題 名 | Relationship between Body Mass and Body Length of Resident Bird Species in Taiwan=臺灣地區留鳥之體長與體重關係 |
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作 者 | 李培芬; 丁宗蘇; 許皓捷; | 書刊名 | Acta Zoologica Taiwanica |
卷 期 | 9:2 1998.07[民87.07] |
頁 次 | 頁67-79 |
分類號 | 388.04 |
關鍵詞 | 體長; 體重; 直線迴歸; 臺灣; Body mass; Body length; Simple linear regression model; Taiwan; |
語 文 | 英文(English) |
中文摘要 | 本文探討臺灣地區留鳥之體長(L)和體重(W)關係。由研究文獻中得到鳥類之體長和體重資訊,利用直線迴歸模式建立其預測方程式。由於絕大多數的鳥類體重資料,並非源自臺灣,本研究先以相對誤差值,比較資料之地理變異,結果顯示此變異不大。所得之簡單直線迴歸迴歸式為Log�煄CW=-3.957+2.456 log�煄CL,此式之決定係數為0.904。利用此方式, 預測台灣地區30種鳥類的體重,得各鳥種之預測平均值與75% 上、下預測區間值。利用14種由鳥類繫放所得之體重資料,進行比較,顯示預測值與驗證值之間有些差異,除了台灣藍鵲之預測差距大外,其餘鳥種之相對誤差在2.4%與50.1%之間,但驗證值均落於 75% 預測區間內。本研究的預測模式與資料,較適合於鳥類群聚生態、生態系和景觀生態之研究範疇,可作為預測其他生態研究之參數值和比較各種鳥類之生態特色。 |
英文摘要 | We propose a simple linear regression equation to predict body mass from body length for the resident bird species in Taiwan. The data used in fitting the model were summarized from the literature. Body mass information was not obtained directly from Taiwan. We first examined the possible geographic variations in body mass using existing bird banding data collected by the Chinese Wild Bird Federation of Taiwan. The results indicate that variations between Taiwan and other geographic areas are generally small and acceptable. The overall linear regression for the body size relations based on 123 species is Log�� (Body massing) =-3.957+2.456 Logi�� (Body length in mm), with a significant coefficient of determination (γ�� = 0.904). The equation was used to predict the mean and 75% prediction intervals for 30 bird species in Taiwan. The predictions for 14 species were compared with two independent data sets collected in Taiwan. Except for the Taiwan Magpie (Urocissa caerulea), the absolute relative errors vary from 2.4% to 50.1%, and all the known means are within the 75% prediction intervals. The collected data and prediction models are suitable for comparing large numbers of species and serving as the basis for predicting many ecological parameters at community, ecosystem, and landscape levels. |
本系統中英文摘要資訊取自各篇刊載內容。