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Geographic Variation of Adaptive Characters in Rana pipiens Schreber
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Geographic Variation of Adaptive Characters in Rana pipiens Schreber

著者: John A Moore
版本/格式: 文章 文章 : 英语
刊登在:Evolution, Mar., 1949, vol. 3, no. 1, p. 1-24
数据库:JSTOR
其它数据库: MEDLINE
提要:
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文件类型: 文章
所有的著者/提供者: John A Moore
ISSN:0014-3820
OCLC号码: 478513415
语言注释: English
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摘要:

Previous experiments have revealed that northern and southern species of amphibians differ in a number of characters such as embryonic temperature tolerance, rate of development, temperature coefficient, egg size, and form of egg mass. In the experiments reported in this paper the geographic variations of the above listed characters are described for a single species, Rana pipiens. The northern populations of this species are found to differ from southern populations in the same way that northern species differ from southern species. The formation of intraspecific temperature races in Rana pipiens is correlated with an unusually great range of geographic distribution.

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