Book Chapters
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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
Understanding food webs in the Chesapeake Bay Understanding food webs in the Chesapeake Bay
Approaches to predictive modeling and to management of the Chesapeake Bay ecosystem are 'bottom up' (i.e., approaches involve the control of nutrient inputs in attempts to manage plankton productivity) and 'top down' (i.e., approaches involve controls on harvest of fisheries and wildlife in attempts to manage vertebrate populations). Both approaches are limited by a lack of understanding...
Authors
J.R. Keough, G.M. Haramis, Matthew C. Perry
Using spring-water chemistry to assess groundwater contamination and ages of shallow and deep ground water flow systems Using spring-water chemistry to assess groundwater contamination and ages of shallow and deep ground water flow systems
No abstract available.
Authors
B. G. Katz, J.K. Bohlke, D. Hornsby
Visitor impact assessment and monitoring systems: Evolution and current development Visitor impact assessment and monitoring systems: Evolution and current development
Managers of protected areas are increasingly concerned with recreation impacts to the resource and how they should be managed. Impact management programs must be based on information about the severity and extent of impacts and how they are changing over time. This information need has generated considerable interest in the development of visitor impact assessment and monitoring (VIAM)...
Authors
Y.-F. Leung, J. L. Marion, D.N. Cole
West Nile virus in livestock and wildlife West Nile virus in livestock and wildlife
West Nile (WN) virus, the causative agent of West Nile fever, a dengue-like infection in humans, is one of the most widely distributed arthropod-borne viruses extending, until recently, from Africa, the Middle East, Europe, and western Asia. WN virus is a natural avian virus transmitted between birds primarily by ornithophilic mosquitoes, although isolations have been reported from...
Authors
R. G. McLean, S. R. Ubico, D. Bourne, N. Komar
Wildlife disease in the Colorado Delta as an indicator of ecosystem health Wildlife disease in the Colorado Delta as an indicator of ecosystem health
Ecosystem health and management are relatively new paradigms for environmental management (Costanza et al., 1992) and will be continually redefined and reevaluated relative to their purpose and utility in serving human society (Costanza et al., 1992; Sutter, 1993; Grumbine, 1994; Lackey, 1998, 1999). The stimulus for ecosystem management is often associated with sustaining or restoring...
Authors
Tonie E. Rocke, M. Friend
Wildlife habitat modeling in an adaptive framework: The role of alternative models Wildlife habitat modeling in an adaptive framework: The role of alternative models
No abstract available.
Authors
M.J. Conroy, C. T. Moore
Very different crustal response to extreme extension in the southern Basin and Range and Colorado Plateau transition Very different crustal response to extreme extension in the southern Basin and Range and Colorado Plateau transition
Clustered about the southwest edge of the Colorado Plateau lie many highly extended terranes. Among these are metamorphic core complexes, distinguished by low-angle normal faults with sufficient offset to expose middle crustal rocks at higher elevation relative to the surrounding areas. About 150 km to the southwest, strong extension in the Salton Trough manifests itself very differently...
Authors
Tom Parsons, Jill McCarthy, George A. Thompson
Potential consequences of climate variability and change on coastal areas and marine resources Potential consequences of climate variability and change on coastal areas and marine resources
No abstract available.
Authors
John C. Field, Donald F. Boesch, Donald Scavia, Robert Buddemeier, Virginia Burkett, Daniel Cayan, Michael Fogarty, Mark Harwell, Robert Howarth, Curt Mason, L.J. Pietrafesa, Denise Reed, Thomas Royer, Asbury Sallenger, Michael Spranger, James G. Titus
Potential consequences of climate variability and change for the Southeastern United States Potential consequences of climate variability and change for the Southeastern United States
No abstract available.
Authors
Virginia Burkett, Ronald Ritschard, Steven McNulty, J. J. O’Brien, Robert C. Abt, James Jones, Upton Hatch, Brian Murray, Shrikant Jagtap, Jim Cruise
Sequence stratigraphy of a South Florida carbonate ramp and bounding siliciclastics (late Miocene-Pliocene) Sequence stratigraphy of a South Florida carbonate ramp and bounding siliciclastics (late Miocene-Pliocene)
In southern peninsular Florida, a late-early to early-late Pliocene carbonate ramp (Ochopee Limestone Member of the Tamiami Formation) is sandwiched between underlying marine siliciclastics of the late Miocene to early Pliocene Peace River Formation and an overlying late Pliocene unnamed sand. At least three depositional sequences (DS1, DS2, and DS3), of which two contain condensed...
Authors
Kevin J. Cunningham, David Bukry, T. Sato, John A. Barron, Laura A. Guertin, Ronald S. Reese
Significance of type Devils Gate Limestone on Devonian proto-Antler forebulge, west of Eureka, Nevada Significance of type Devils Gate Limestone on Devonian proto-Antler forebulge, west of Eureka, Nevada
No abstract available.
Authors
Charles Sandberg, J. R. Morrow, Forrest G. Poole
Careers in marine mammal medicine Careers in marine mammal medicine
No abstract available.
Authors
Leslie A. Dierauf, Salvatore Frasca, T. Y. Mashima