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详细书目
| 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 |
| 奖励: |
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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