Chironomids and other invertebrates from north Boulder Creek, Colorado
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Distribution of invertebrates in a high mountain brook in the Colorado Rocky Mountains
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A study of the ecological distribution of ants in Gregory Canyon, Boulder, Colorado
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Data on mountain environments: III. Front Range, Colorado, four climax regions, 1959-1964
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Data on mountain environments: II. Front Range, Colorado, four climax regions, 1953-1958
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Data on mountain environments: I. Front Range, Colorado, sixteen sites, 1952-1953
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A cytological investigation of the mosses of the Rocky Mountains
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The influence of light intensity on growth and chlorophyll in arctic, subarctic, and alpine populations of Deschampsia caespitosa and Trisetum spicatum
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Cytotaxonomy of the alpine vascular plants of Mount Washington