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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.
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Saltcedar and Russian olive control demonstration act science assessment [Executive summary] Saltcedar and Russian olive control demonstration act science assessment [Executive summary]
The primary intent of this document is to provide the science assessment called for under The Saltcedar and Russian Olive Control Demonstration Act of 2006 (Public Law 109–320; the Act). A secondary purpose is to provide a common background for applicants for prospective demonstration projects, should funds be appropriated for this second phase of the Act. This document synthesizes the...
Authors
Pamela L. Nagler, Patrick B. Shafroth, James W. LaBaugh, Keirith A. Snyder, Russell L. Scott, David M. Merritt, John Osterberg
Saltcedar and Russian olive interactions with wildlife: Chapter 4 Saltcedar and Russian olive interactions with wildlife: Chapter 4
Riparian areas of flood plains typically provide a mosaic of productive habitats (Stanford and others, 2005; Latterell and others, 2006) capable of supporting many wildlife species, particularly in the arid and semiarid Western United States. The establishment of nonnative invasive plants can alter riparian habitat by inhibiting native plant recruitment and by increasing the risk of...
Authors
Heather L. Bateman, Eben H. Paxton
Sampling and analysis of emerging pollutants Sampling and analysis of emerging pollutants
No abstract available.
Authors
Tammy L. Jones-Lepp, David A. Alvarez
Springs - A Florida Treasure Springs - A Florida Treasure
No abstract available.
Authors
Howard L. Jelks
Surrogate technologies for monitoring bed-load transport in rivers Surrogate technologies for monitoring bed-load transport in rivers
No abstract available.
Authors
John R. Gray, Jeffrey W. Gartner, Jonathan S. Barton, Janet Gaskin, Smokey A. Pittman, Colin D. Rennie
Surrogate technologies for monitoring suspended-sediment transport in rivers Surrogate technologies for monitoring suspended-sediment transport in rivers
No abstract available.
Authors
John R. Gray, Jeffrey W. Gartner, Chauncey W. Anderson, Gregory G. Fisk, G. Douglas Glysson, Daniel J. Gooding, Nancy J. Hornewer, Matthew C. Larsen, Jamie P. Macy, Patrick P. Rasmussen, Scott A. Wriight, Andrew C. Ziegler
Tectonic, magmatic, and metamorphic history of the New Jersey Highlands: New insights from SHRIMP U-Pb geochronology Tectonic, magmatic, and metamorphic history of the New Jersey Highlands: New insights from SHRIMP U-Pb geochronology
No abstract available.
Authors
Richard A. Volkert, John N. Aleinikoff, C. Mark Fanning
The morphology, processes, and evolution of Monterey Fan: a revisit The morphology, processes, and evolution of Monterey Fan: a revisit
Long-range (GLORIA) and mid-range (TOBI) sidescan imagery and seismic-reflection profiles have revealed the surface morphology and architecture of the complete Monterey Fan. The fan has not developed a classic wedge shape because it has been blocked for much of its history by Morro Fracture Zone. The barrier has caused the fan to develop an upper-fan and lower-fan sequence that are...
Authors
James V. Gardner, Robert G. Bohannon, Michael E. Field, Douglas G. Masson
The potential for water savings through the control of saltcedar and Russian olive: Chapter 3 The potential for water savings through the control of saltcedar and Russian olive: Chapter 3
This chapter discusses the components of the water budget for a riparian system containing large stands of saltcedar or Russian olive—that is, how water is used by the plant community and how that use affects both streamflow volume and groundwater levels. The relation of water availability to the hydrologic cycle and geomorphic setting in the Western United States, as well as the...
Authors
Pamela L. Nagler, Patrick B. Shafroth, James W. LaBaugh, Keirith A. Snyder, Russell L. Scott, David M. Merritt, John Osterberg
The tectono-stratigraphic framework and evolution of southwestern Maine and southeastern New Hampshire The tectono-stratigraphic framework and evolution of southwestern Maine and southeastern New Hampshire
Five belts of metamorphosed sedimentary and volcanic rocks underlie southwestern Maine and southeastern New Hampshire: Middle Ordovician Falmouth-Brunswick sequence; Middle and Late Ordovician Casco Bay Group, and Late Ordovician to Early Silurian rocks of the Merribuckfred Basin; Late Ordovician to Early Silurian rocks of the East Harpswell Group; Silurian to Early Devonian rocks of the...
Authors
Arthur M. Hussey, Wallace A. Bothner, John N. Alienikoff
The use of historical charts and photographs in ecosystem restoration: Examples from the Everglades Historical Air Photo Project The use of historical charts and photographs in ecosystem restoration: Examples from the Everglades Historical Air Photo Project
No abstract available.
Authors
Thomas J. Smith, Ginger Tiling-Range, John Jones, Paul Nelson, Ann Foster, Karen Balentine
Tree-ring cutting dates and demographic change in the Southern Colorado Plateau and Rio Grande regions Tree-ring cutting dates and demographic change in the Southern Colorado Plateau and Rio Grande regions
No abstract available.
Authors
Michael S. Berry, Larry V. Benson