碩士 / 國立嘉義大學 / 森林暨自然資源研究所 / 97 / Abstract
Central formosan toad,（Bufo bankorensis Barbour）distributes in the range of elevation from 100 to 3,000 m. The reproductive populations occur in the lotic and lentic habitats. The study is about the latitudinal patterns of morphology variations in Central formosan toads and tadpoles. And we also compared the variations of tadpoles morphology between stream and pond habitats. Therefore, we sited survey sites at different elevations between 100 and 2,320 m in Ali Mountain. Field investigations were performed form March 2005 to February 2008. In the laboratory, the size of tadpoles and adults were measured by ocular micrometer. The age of the tadpoles were defined at the elapsing time, between Gosner stage 30 and 32 . The results showed Bufo bankorensis is dimorphism. The mean of the body sizes of females was bigger than that of males. The increase in elevation, the male body sizes of Bufo bankorensis were larger in low elevations than those in high elevations, but the inter-orbits between distance of male were larger in high elevations than those in low elevations. In the tadpoles, the means of caudal muscle height, and caudal muscle width increased from low to middle-altitude. The tadpole body sizes of Bufo bankorensis in the ponds were declined from middle to high-altitude. The body sizes of tadpoles are bigger in the ponds than that in the streams. But the relatively tail length of the tadpoles in the streams are longer than that in the ponds.
| Identifer | oai:union.ndltd.org:TW/097NCYU5359019 |
| Date | January 2009 |
| Creators | Chun Fen Kuo, 郭淳棻 |
| Contributors | Yue-Ken Liao, Fu-Hsiung Hsu, 廖宇賡, 許富雄 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 68 |
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