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Age-Specific Movement Patterns of the Frog Ascaphus truei
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Age-Specific Movement Patterns of the Frog Ascaphus truei

著者: Charles H Daugherty; Andrew L Sheldon
版本/格式: 文章 文章 : 英语
刊登在:Herpetologica, Dec., 1982, vol. 38, no. 4, p. 468-474
数据库:JSTOR
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文件类型: 文章
所有的著者/提供者: Charles H Daugherty; Andrew L Sheldon
ISSN:0018-0831
OCLC号码: 485237392
语言注释: English
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摘要:

Age-specific aestival and annual movements of transformed tailed frogs (Ascaphus truei) were investigated. Vagility decreased with age and reproductively mature animals exhibited extreme philopatry. Limited movement is probably selectively advantageous in securing food, mate and shelter. The level of philopatry in Ascaphus is greater than that demonstrated for other amphibian species, functions to reduce gene flow, and supports a model of a highly fragmented population structure for the species.

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