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Books

Browse almost 1,000 books authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.

Filter Total Items: 974

Managing Northern forests for black bears Managing Northern forests for black bears

No abstract available.
Authors
L.L. Rogers, Gregory A. Wilker, Arthur W. Allen

Instream flow values and power production Instream flow values and power production

No abstract available.
Authors
Robert T. Milhous, Aaron J. Douglas

Size and growth patterns of the Yellowstone grizzly bear Size and growth patterns of the Yellowstone grizzly bear

Weights and/or measurements of 151 grizzly bears (Ursus arctos) captured 261 times were recorded from 1975 to 1985. Males were consistently heavier than females within all age classes beginning at age 2. Mean weight for 65 captive males (5+ years old) was 192 kg and 135 kg for 63 adult females (5+ years old). Mean monthly weights by sex and age class indicated adults lost weight from den
Authors
Bonnie M. Blanchard

Mesozoic rocks of southern Arizona and adjacent areas Mesozoic rocks of southern Arizona and adjacent areas

No abstract available.
Authors
William R. Dickinson, Margaret A. Klute
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