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Nest-Site Selection by Sage Sparrows
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Nest-Site Selection by Sage Sparrows

著者: Kenneth L Petersen; Louis B Best
版本/格式: 文章 文章 : 英语
刊登在:Condor, May, 1985, vol. 87, no. 2, p. 217-221
数据库:JSTOR
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文件类型: 文章
所有的著者/提供者: Kenneth L Petersen; Louis B Best
ISSN:0010-5422
OCLC号码: 478436347
语言注释: English
注意: FIGURE 5. Orientation of Sage Sparrow nests relative to the center of the support shrubs. Values represent numbers of nests.
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摘要:

In 1980, 1981, and 1982, we studied nest-site selection by Sage Sparrows (Amphispiza belli) in a sagebrush community in Idaho to provide a thorough description of nest-site characteristics and preferences. Sage Sparrows nested in areas where sagebrush coverage was sparse but shrubs were clumped. All nests were situated in big sagebrush (Artemisia tridentata) plants; large, living shrubs were strongly preferred. Nest placement relative to the ground and shrub perimeter seemed quite specific. Sage Sparrows avoided positioning nests on the southwest side of shrubs.

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