Variation in the species composition and
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Stewart W. Janes
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Article
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1994
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Springer-Verlag
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English
β 826 KB
The composition of an avian foliage-gleaning guild was analyzed with respect to body size at nine sites along an elevational gradient in the Oregon Cascades. Mean body size decreased from 20.5 g near the lower forest boundary where it meets the grassland at about 775 m to 9.3 g near timberline at ab