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Book Chapters

Browse more than 5,500 book chapters 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: 6155

Movements of radio-instrumented grizzly bears within the Yellowstone area Movements of radio-instrumented grizzly bears within the Yellowstone area

Grizzly bear (Ursus arctos horribilis) movement patterns were studied with the aid of 18 radio-instrumented grizzly bears in 1975 and 1976. Five bears gave minimal information because of death, transmitter failure, or loss of transmitters. Seasonal home range information is presented for 13 bears. Two bears, trapped inside Yellowstone National Park, included areas outside of the park in...
Authors
Steven L. Judd, Richard R. Knight

The natural food habits of grizzly bears in Yellowstone National Park, 1973-74 The natural food habits of grizzly bears in Yellowstone National Park, 1973-74

The natural food habits of grizzly bears (Ursus arctos horribilis Ord) in Yellowstone National Park were investigated in 1973-74 to identify the grizzly's energy sources and trophic level(s), nutrient use, and distribution. Food consumption was determined by scat analysis and field observations. Food quality and digestibility were estimated by chemical analysis. Grizzlies were...
Authors
Stephen Patrick Mealey

Daphnia toxicity tests Daphnia toxicity tests

No abstract available at this time
Authors
A.L. Buikema, J. G. Geiger, D.R. Lee
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