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Science Quality and Integrity
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 almost 1,000 books 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: 971
Management and protection protocols for the threatened Piping Plover (Charadrius Melodus) on Cape Hatteras National Seashore, North Carolina
Executive Summary 1. The breeding population of the piping plover (Charadrius melodus), a federally-threatened shorebird, at Cape Hatteras National Seashore (CAHA) declined from 15 pairs/yr to 3 pairs/yr from 1989-2004. A population of this size may face immediate risk of extirpation from several sources. At several former breeding sites at CAHA, there have been no nesting pairs in recent years.
Authors
J.B. Cohen
Management, monitoring, and protection protocols for American Oystercatchers at Cape Hatteras National Seashore, North Carolina
No abstract available.
Authors
J.M. Meyers
Management, monitoring, and protection protocols for colonially nesting waterbirds at Cape Hatteras National Seashore, North Carolina
No abstract available.
Authors
R.M. Erwin
Management, monitoring, and protection protocols for seabeach amaranth at Cape Hatteras National Seashore, North Carolina
No abstract available.
Authors
J. L. Marion
National parks and protected areas: Appoaches for balancing social, economic, and ecological values
The balance of nature in any strict sense has been upset long ago…The only option we have is to create a new balance objectively determined for each area in accordance with the intended use of that area.” --Aldo Leopold, 1927, in a letter to the Superintendent of Glacier National Park
The planning and management staff of state/national parks and protected areas face a complex set of management pro
Authors
Tony Prato, Daniel B. Fagre
Nondetects and data analysis: Statistics for censored environmental data
No abstract available.
Authors
Dennis R. Helsel
Synthesis of management, monitoring, and protections protocols for the threatened and endangered species and species of special concern at Cape Hatteras National Seashore, North Carolina
No abstract available.
Authors
J.B. Cohen, R.M. Erwin, J.B. French, J. L. Marion, J.M. Meyers
The Colorado Plateau II: biophysical, socioeconomic, and cultural research
The publication of The Colorado Plateau: Cultural, Biological, and Physical Research in 2004 marked a timely summation of current research in the Four Corners states. This new volume, derived from the seventh Biennial Conference on the Colorado Plateau in 2003, complements the previous book by focusing on the integration of science into resource management issues. The 32 chapters range in content
Authors
David J. Mattson
Use of sediment quality guidelines
Are sediment quality guidelines (SQGs) adequately able to predict the presence or absence of chronic toxicity to sediment-dwelling organisms in field-collected sediments? Can SQGs predict effects resulting from the bioaccumulation of sediment-associated contaminants? Do SQGs define cause-and-effect relationships? Can they predict effects on organisms exposed in the field on the basis of amphipod m
Authors
R. J. Wenning, G. E. Batley, Christopher G. Ingersoll, David W. Moore
Wildlife and habitat damage assessment from Hurricane Charley: recommendations for recovery of the J. N. "Ding" Darling National Wildlife Refuge Complex. [Final report to U.S. Fish and Wildlife Service]
On 13 August 2004, the first of four hurricanes to strike Florida in 50% and sometimes 90% of their vegetation severely damaged (dead, broken tree stems, and tipped trees). Shell Mound Trail of JNDDNWR sustained catastrophic damage to its old growth mangrove forests. Direct storm mortality and injury to manatees in the area was probably slight. Because seagrass beads and manatee habitat extend
Authors
J.M. Meyers, C.A. Langtimm, T. J. Smith, K. Pednault-Willett
Water-rock interaction
No abstract available.