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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
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: 6158
Habitat use by migrating sharp-shinned hawks at Cape May Point, New Jersey, U.S.A Habitat use by migrating sharp-shinned hawks at Cape May Point, New Jersey, U.S.A
No abstract available.
Authors
A.M.A. Holthuijzen, L. Oosterhuis, M.R. Fuller
Hawaii's native ecosystems: Importance, conflicts, and suggestions for the future Hawaii's native ecosystems: Importance, conflicts, and suggestions for the future
No abstract available.
Authors
C.P. Stone, J. M. Scott
Magnitude and dynamics of sediment stored in Redwood Creek California Magnitude and dynamics of sediment stored in Redwood Creek California
No abstract available at this time
Authors
Mary Ann Madej
Managing habitats for complex raptor guilds in eastern forests Managing habitats for complex raptor guilds in eastern forests
No abstract available.
Authors
K. Titus, M.R. Fuller, M. Root, P. DeSimone, J. Britt, J. A. Mosher
Maximum likelihood methods for investigating reporting rates of rings on hunter-shot birds Maximum likelihood methods for investigating reporting rates of rings on hunter-shot birds
It is well known that hunters do not report 100% of the rings that they find on shot birds. Reward studies can be used to estimate what this reporting rate is, by comparison of recoveries of rings offering a monetary reward, to ordinary rings. A reward study of American Black Ducks (Anas rubripes) is used to illustrate the design, and to motivate the development of statistical models for
Authors
M.J. Conroy
Measurement of activity--An example of microcomputers in animal collars for data collection and retrieval Measurement of activity--An example of microcomputers in animal collars for data collection and retrieval
No abstract available.
Authors
Richard C. Chapman, L.D. Mech, M.E. Hamerly
Multiple-clutching of wild California condors (Gymnogyps californianus) Multiple-clutching of wild California condors (Gymnogyps californianus)
No abstract available.
Authors
N.F.R. Snyder
Occurrence and preservation of Eocene squamariacean and coralline rhodoliths: Eau, Tonga Occurrence and preservation of Eocene squamariacean and coralline rhodoliths: Eau, Tonga
A widespread rhodolith facies occurs within middle Eocene limestones of Eua, Tonga (Fig. 1). These limestones, first described by Hoffmeister (1932), represent a portion of a broad, early Tertiary platform that developed in the Tonga area prior to disruption and uplift by later Tertiary plate movements (Kroenke and Tongilava 1975). Algal rhodoliths form beds several meters thick within...
Authors
Binyamin Buchbinder, Robert B. Halley
Organochlorine pesticides in plasma of migrating peregrine falcons at Padre Island, Texas, Spring 1978-80 vs. Spring 1984 Organochlorine pesticides in plasma of migrating peregrine falcons at Padre Island, Texas, Spring 1978-80 vs. Spring 1984
A spring concentration of migrating Peregrine Falcons (Falco peregrinus) was first discovered at Padre Island, Texas, in April 1978. The birds were first captured and blood-sampled for monitoring residue burdens and trends in the late 1970' s. Only 29 Peregrines were sampled in 1978 and 1979, but 111 were sampled in 1980. The initial investigation showed that DDE in the plasma of spring...
Authors
Charles J. Henny, K.E. Riddle, C.S. Hulse
Population trends of selected forest birds in the Northeast Population trends of selected forest birds in the Northeast
No abstract available.
Authors
C.S. Robbins