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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.
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
Recording mammal calls Recording mammal calls
No abstract available.
Authors
W.L. Gannon, M.S. Foster
Records Records
No abstract available.
Authors
D. H. Ellis, J.A. Taylor, C.M. Mirande, J.A. Langenberg, M. Wellington, B.H. Powell, J.L. McMillen
Reproductive physiology Reproductive physiology
Conclusions: Although the general pattern of avian physiology applies to cranes, we have identified many physiological mechanisms (e.g., effects of disturbance) that need further study. Studies with cranes are expensive compared to those done with domestic fowl because of the crane's larger size, low reproductive rate, and delayed sexual maturity. To summarize, the crane reproductive...
Authors
G.F. Gee, S.E. Russman
Resource issues addressed by case studies of sustained research in national parks Resource issues addressed by case studies of sustained research in national parks
No abstract available.
Authors
Gary E. Davis, William L. Halvorson
Rose-breasted grosbeak, Pheucticus ludovicianus Rose-breasted grosbeak, Pheucticus ludovicianus
No abstract available.
Authors
B.A. Dowell
San Francisco Bay salinity: observations, numerical simulation, and statistical models San Francisco Bay salinity: observations, numerical simulation, and statistical models
No abstract available.
Authors
D. H. Peterson, D.R. Cayan, M. D. Dettinger, M. Noble, L.G. Riddle, L. E. Schemel, R. E. Smith, R.J. Uncles, R. Walters
Sedimentary processes in a tectonically active region: Puerto Rico north insular slope Sedimentary processes in a tectonically active region: Puerto Rico north insular slope
No abstract available.
Authors
Kathryn M. Scanlon, Douglas G. Masson
Sedimentary processes in the salt deformation province of the Texas-Louisiana continental slope Sedimentary processes in the salt deformation province of the Texas-Louisiana continental slope
No abstract available.
Authors
David C. Twichell, Catherine M. Delorey
Seismic reflection profile of the Blake Ridge near sites 994, 995, and 997 Seismic reflection profile of the Blake Ridge near sites 994, 995, and 997
Seismic reflection profiles near Sites 994, 995, and 997 were collected with seismic sources that provide maximum resolution with adequate power to image the zone of gas hydrate stability and the region direction beneath it. The overall structure of the sediment drift deposit that constitutes the Blake Ridge consists of southwestward-dipping strata. These strata are approximately...
Authors
William P. Dillon, Deborah R. Hutchinson, Rebecca M. Drury
Serum factors as indicators of environmental stress: optimization of methodologies for striped bass Serum factors as indicators of environmental stress: optimization of methodologies for striped bass
No abstract available at this time
Authors
V. S. Blazer, D.L. Higginbotham, J.W. Fournie