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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: 6197
Response of sago pondweed, a submerged aquatic macrophyte, to herbicides in three laboratory culture systems Response of sago pondweed, a submerged aquatic macrophyte, to herbicides in three laboratory culture systems
The phytotoxicity of atrazine, paraquat, glyphosate, and alachlor to sago pondweed (Potamogeton pectinatus), a submerged aquatic macrophyte, was tested under three types of laboratory culture conditions. In each case, tests were conducted in static systems, the test period was four weeks, and herbicide exposure was chronic, resulting from a single addition of herbicide to the test...
Authors
W. James Fleming, M.S. Ailstock, J.J. Momot, C.M. Norman
Responses of North American duck populations to exploitation Responses of North American duck populations to exploitation
No abstract available.
Authors
J.D. Nichols
Returning the wolf to Yellowstone Returning the wolf to Yellowstone
No abstract available.
Authors
L.D. Mech
Sediment redistribution in a groin embayment under shore-normal wave approach Sediment redistribution in a groin embayment under shore-normal wave approach
No abstract available.
Authors
B.O. Bauer, J.R. Allen, K.F. Nordstrom, D.J. Sherman
Silvicultural options for waterfowl management in bottomland hardwood stands and greentree reservoirs Silvicultural options for waterfowl management in bottomland hardwood stands and greentree reservoirs
No abstract available.
Authors
D.J. Moorhead, J.D. Hodges, K. J. Reinecke
Stratigraphy of Pole Creek Top area, Malheur County, Oregon Stratigraphy of Pole Creek Top area, Malheur County, Oregon
No abstract available
Authors
V.E. Barlock, D. B. Vander Meulen
Structure, stratigraphy, and mineralization of the upper plate of the Bullfrog Hills detach ment fault system, Bullfrog Hills area, with emphasis on the geology of Bullfrog Mountain, Nye County, southern Nevada Structure, stratigraphy, and mineralization of the upper plate of the Bullfrog Hills detach ment fault system, Bullfrog Hills area, with emphasis on the geology of Bullfrog Mountain, Nye County, southern Nevada
No abstract available
Authors
Florian Maldonado
Tectonic framework of the central Walker Lane region: Yerington to Tonopah, Nevada Tectonic framework of the central Walker Lane region: Yerington to Tonopah, Nevada
No abstract available
Authors
R.F. Hardyman, D. A. John, J. S. Oldow
The occurrence of chlorostyrenes in egrets and herons collected in Galveston Bay The occurrence of chlorostyrenes in egrets and herons collected in Galveston Bay
No abstract available.
Authors
C.P. Rice, T. W. Custer
Use of Andean condors to enhance success of California condor reintroduction to the wild Use of Andean condors to enhance success of California condor reintroduction to the wild
No abstract available.
Authors
M.P. Wallace, J. Wiley
Water geothermometers applied to geothermal energy Water geothermometers applied to geothermal energy
No abstract available
Authors
R.O. Fournier