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題名 | 武陵地區三種溪流生殖蛙類的食性=Food Habits of Three Stream-Breeding Frog Species in the Wulin Area |
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作者 | 張文宏; 吳聲海; Chang, Wen-hong; Wu, Sheng-hai; |
期刊 | 國家公園學報 |
出版日期 | 20120300 |
卷期 | 22:1 2012.03[民101.03] |
頁次 | 頁52-59 |
分類號 | 388.691 |
語文 | chi |
關鍵詞 | 食性; 攝食策略; 盤古蟾蜍; 斯文豪氏赤蛙; 梭德氏赤蛙; Food habits; Feeding strategy; Bufo bankorensis; Odorrana swinhoana; Rana sauteri; |
中文摘要 | [摘要] 本研究以胃內含物分析法研究武陵地區之盤古蟾蜍(Bufo bankorensis)、斯文豪氏赤蛙(Odorrana swinhoana)與梭德氏赤蛙(Rana sauteri)之食性,並探討其攝食策略。結果發現三種青蛙的食物都是以節肢動物為主,且以昆蟲佔最大比例。盤古蟾蜍之主要食物類別為鞘翅目、雙翅目與膜翅目;斯文豪氏赤蛙為蜘蛛目、雙翅目與無尾目;梭德氏赤蛙則為雙翅目、蜘蛛目與鞘翅目。三種青蛙的食性重疊度分別為盤古蟾蜍與梭德氏赤蛙的0.782;斯文豪氏赤蛙與梭德氏赤蛙的0.592;盤古蟾蜍與斯文豪氏赤蛙的0.516。三種青蛙食性重疊度雖高,但因棲地區隔或某些食物類別之差異等因素,仍能共域於相同環境。食性寬度分別為斯文豪氏赤蛙0.859、梭德氏赤蛙0.734與盤古蟾蜍0.719。三種青蛙中以盤古蟾蜍與梭德氏赤蛙之攝食策略較為相似,斯文豪氏赤蛙與前兩種差異較大。 |
英文摘要 | ABSTRACT Food habits of three sympatric frog species, Bufo bankorensis, Odorrana swinhoana and Rana sauteri, were investigated by stomach content analysis in the Wulin area. All three species fed mainly on arthropods, in particular insects. The diet of B. bankorensis consisted primarily of the orders Coleoptera, Diptera, and Hymenoptera; that of O. swinhoana were primarily of Araneae, Diptera, and Anura; and R. sauteri, Diptera, Araneae, and Coleoptera. Food niche overlap index was highest between B. bankorensis and R.sauteri (0.782), followed by that between O. swinhoana and R. sauteri (0.592), and lowest between B. bankorensis and O. swinhoana (0.516). Although food niche overlap was high, a few differences were found in diet composition and habitat preference. The food niche breadth index of O. swinhoana was highest (0.859), followed by R. sauteri (0.734) and B. bankorensis (0.719). We suggest that the feeding strategies were more similar between B. bankorensis and R. sauteri among the three stream breeding anurans. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。