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理學院
生命科學專業學院—生命科學系
生物學報
生物學報
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http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/148
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search.filters.author.林嘉貞
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search.filters.author.杜銘章
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search.filters.subject.Adaptation
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search.filters.subject.Arboreal snakes
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search.filters.subject.Boiga kraepelini
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search.filters.subject.Respiratory
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search.filters.subject.呼吸
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Author: search.filters.author.林嘉貞
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樹棲蛇類呼吸適應的探討
(
國立臺灣師範大學生命科學學系
,
1997-06-??
)
林嘉貞
;
杜銘章
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特別細長的身體和向後縮短的血管肺腔都是樹棲蛇類為了因應樹上的生活所演化出來的有利特徵。這些形態生理的調適雖有諸多正面的好處,卻也可能因無效腔的延長而降低了呼吸的效率,我們因此推論樹棲蛇類的呼氣中二氧化碳的比率會較陸棲蛇類高。我們以本島產的大頭蛇和紅斑蛇分別代表樹棲和陸棲的蛇類,實驗前蛇都先經過二週的馴化,並控制食物,溫度和日週性,再以很合身的乳膠頭套套住頭部,由頭套前端的唯一的通氣口抽氣分析二氧化碳含量。結果顯示呼氣中二氧化碳的含量大頭蛇和紅斑蛇並無差異。否定了我們的假說。材料方法的改善,和其它影響蛇類呼吸效率的進一步探究,將有助於澄清樹棲蛇類呼吸適應的問題。
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