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題 名 | 阿里山及玉山國家公園臺灣山椒魚族群生態之研究 |
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作 者 | 葉明欽; 呂光洋; 賴俊祥; | 書刊名 | 師大生物學報 |
卷 期 | 29:2 1994.12[民83.12] |
頁 次 | 頁79-87 |
分類號 | 388.6 |
關鍵詞 | 臺灣山椒魚; 棲地喜好; 族群結構; Hynobius formosanus; Population structure; Habitat preference; |
語 文 | 中文(Chinese) |
中文摘要 | 結果顯示,台灣山椒魚在棲地喜好上--不同地點皆相同的以石頭為主要的隱蔽物,底質在阿里山樣區以泥土為主;自忠樣區以碎石為主;石山樣區及塔塔加樣區以腐葉為主;鹿林山莊及神木林道則泥土及碎石並重。山椒魚對微棲地的遮蔽物主要都是面積100--300平方公分的物體,但這並非偏好。以穿越線法調查各樣區的地表物面積,發現在各樣區山椒魚所利用遮蔽物比例和每個樣區的遮蔽物比例相同。氣候才是主要影響山椒魚分布的因子。族群數量方面,每月每1000m2捕獲量以自忠地區最高(5.41隻),鹿林樣區最低(0.98隻)。族群結構方面,阿里山地區包含大(SVL>45mm)、中(25<SVL<45mm)、小(SVL<25mm) 型個體,小型個體在春季出現最多,爾後漸減至冬季僅剩大型個體,其他地區此種現象則不明顯,而在阿里山地區族群結構明顯呈春季幼體多、夏季三種大小個體皆有、秋季中小型個體漸減、冬季僅存大型個體的年過期變化。能定出個體活動範圍的樣區僅自忠A樣區及阿里山,但兩地區沒有明顯差別,活動範圍由278.13至1.18平方公尺。 |
英文摘要 | The purpose of this study was to investigate the population ecology, habitat preference and seasonal activity pattern of Formosan salamander (Hynobius formosanus) in Alishan and nearby areas of New Central Crossed Island Highway including Chichung, Sheshan, Tatachia, Lulin cottage, and Shenmulindao. The research was undertaken from January 1990 to April 1991. Results revealed that Formosan salamander preferred habitats with soil substrates containing small gravels and detritus. We discovered that majority of salamanders used stones for hiding (as hides). Although there is some difference among substrate components of six study sites, yet no selection bias was found among salamanders. As for population density, 5.41 individuals/1000m2 from Chichung area is the highest (among these six populations), and 0.98 individuals/1000 m2 from Lulin is the lowest. In Alishan region, we separated the populations into three age groups, adults (SVL>45mm), subadults (25<SVL<45mm), and juvenile (SVL < 25mm). Juveniles constitute the major part of the population during Spring, then their number decreases gradually and almost is replaced by adults in Winter. Due to the limited recaptured individuals, we were only able to determine the size of home ranges of eight animals from Alishan and Chichung. Home ranges are from 275.13 to 1.18 m2 per individual. Statistically, there is no difference on the size of their activity ranges. |
本系統中英文摘要資訊取自各篇刊載內容。