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Behavioral Thermoregulation in High Altitude Tiger Salamanders, Ambystoma tigrinum
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Behavioral Thermoregulation in High Altitude Tiger Salamanders, Ambystoma tigrinum

著者: Alan G Heath
版本/格式: 文章 文章 : 英语
刊登在:Herpetologica, Mar., 1975, vol. 31, no. 1, p. 84-93
数据库:JSTOR
提要:
Several populations and life history stages of the tiger salamander, Ambystoma tigrinum, from elevations above 2890 m were studied in the field and laboratory. All groups selected the warmest water available in the ponds regardless of the actual temperature which rarely exceeded 25° C in the shallows. At night they moved into deeper water as the shallows cooled. In the laboratory aquatic thermal gradient, first year  再读一些...
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文件类型: 文章
所有的著者/提供者: Alan G Heath
ISSN:0018-0831
OCLC号码: 485212280
语言注释: English
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摘要:

Several populations and life history stages of the tiger salamander, Ambystoma tigrinum, from elevations above 2890 m were studied in the field and laboratory. All groups selected the warmest water available in the ponds regardless of the actual temperature which rarely exceeded 25° C in the shallows. At night they moved into deeper water as the shallows cooled. In the laboratory aquatic thermal gradient, first year and older larvae tended to choose warmer temperatures (x̄ = 23.0°-25.5° C) than metamorphosed adults (x̄ = 18.4°-23.7° C). Furthermore, larvae and neotenic adults exhibited a narrower thermal preferendum than did metamorphosed adults. Behavioral thermoregulation may be particularly important in high altitude areas where the active growing season is short.

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