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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.
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.
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Ecology of tidal freshwater forests in coastal deltaic Louisiana and northeastern South Carolina: Chapter 9 Ecology of tidal freshwater forests in coastal deltaic Louisiana and northeastern South Carolina: Chapter 9
Tidal freshwater swamps in the southeastern United States are subjected to tidal hydroperiods ranging in amplitude from microtidal (
Authors
William H. Conner, Ken W. Krauss, Thomas W. Doyle
Tidal freshwater forested wetlands: Future research needs and an overview of restoration: Chapter 17 Tidal freshwater forested wetlands: Future research needs and an overview of restoration: Chapter 17
Studies of tidal freshwater forested wetlands are few in contrast to the diversity of conditions and information needs that exist for this ecosystem type. Basic information is lacking on the physiological ecology of major wetland tree species under natural settings, the structure and dynamics of pure and mixed species communities, soil-plant interactions, biogeochemistry, hydrology...
Authors
William H. Conner, Courtney T. Hackney, Ken W. Krauss, John W. Day
The role of fault zone drilling The role of fault zone drilling
The objective of fault-zone drilling projects is to directly study the physical and chemical processes that control deformation and earthquake generation within active fault zones. An enormous amount of field, laboratory, and theoretical work has been directed toward the mechanical and hydrological behavior of faults over the past several decades. Nonetheless, it is currently impossible...
Authors
M.D. Zoback, Stephen H. Hickman, William L. Ellsworth
Theory, modelling and calibration of passive samplers used in water monitoring: Chapter 7 Theory, modelling and calibration of passive samplers used in water monitoring: Chapter 7
This chapter discusses contaminant uptake by a passive sampling device (PSD) that consists of a central sorption phase, surrounded by a membrane. A variety of models has been used over the past few years to better understand the kinetics of contaminant transfer to passive samplers. These models are essential for understanding how the amounts of absorbed contaminants relate to ambient
Authors
K. Booij, B. Vrana, James N. Huckins
Role of prolactin, growth hormone, insulin-like growth factor I and cortisol in Teleost Osmoregulation Role of prolactin, growth hormone, insulin-like growth factor I and cortisol in Teleost Osmoregulation
This chapter focuses on the endocrine mechanisms that control the overall capacity of the ion regulatory mechanisms in teleost fish, focusing on the osmoregulatory actions of prolactin (PRL), the growth hormone (GH)/insulin-like growth factor I (IGF-I) axis and cortisol. PRL has been shown to regulate several aspects of the ion regulatory mechanisms that are characteristic of freshwater...
Authors
J. M. Mancera, Stephen D. McCormick
Lithosphere stress and deformation Lithosphere stress and deformation
After several decades of investigation, a surprisingly simple view of the lithospheric state of stress has emerged. Broad regions of the lithosphere (scales up to thousands of kilometers) are characterized by remarkably uniform stress fields, both in terms of orientations and relative magnitudes. There is a strong correlation between observed intraplate stress orientations and...
Authors
M.L. Zoback, M. Zoback
Dynamic triggering Dynamic triggering
A growing body of evidence demonstrates that dynamic stresses propagating as seismic waves from large earthquakes are capable of triggering additional earthquakes ranging from aftershocks in the near-field (within one or two source dimensions of the mainshock epicenter) to remotely triggered earthquakes at distances exceeding 10 000 km. Most of the triggered earthquakes are small...
Authors
D.P. Hill, S.G. Prejean
Crust and lithospheric structure – Global crustal structure Crust and lithospheric structure – Global crustal structure
The Earth’s crust has played an important role in all aspects of this planet’s evolution. This chapter presents a review of our current understanding of the physical properties of the crust on a global basis. This understanding comes from extensive seismic measurements using many techniques, as well as nonseismic geophysics, including gravity, magnetic, geoelectric, and heat flow...
Authors
Walter D. Mooney
Avian cholera Avian cholera
This chapter contains section titled: Introduction Synonyms History Distribution Host Range Etiology Epizootiology Clinical Signs Pathogenesis Pathology Diagnosis Immunity Public Health Concerns Domestic Animal Health Concerns Wildlife Population Impacts Treatment and Control Management Implications Unpublished Data Literature Cited
Authors
Michael D. Samuel, R. G. Botzler, G. A. Wobeser
Orthoreoviruses Orthoreoviruses
This chapter contains section titled: Introduction History Distribution Host Range Etiology Epizootiology Clinical Signs and Pathology Diagnosis Immunity Public Health Concerns Domestic Animal Health Concerns Treatment and Control Management Implications Literature Cited
Authors
Tuula E. Hollmen, Douglas E. Docherty
Avian pox Avian pox
This chapter contains section titled: Introduction Synonyms History Distribution Host Range Etiology Epizootiology Clinical Signs Pathogenesis Pathology Diagnosis Immunity Public Health Concerns Domestic Animal Health Concerns Wildlife Population Impacts Treatment and Control Management Implications Acknowledgements Literature Cited
Authors
Charles van Riper, Donald J. Forrester
Avian herpesviruses Avian herpesviruses
This chapter contains section titled: Introduction Synonyms History Distribution Host Range Etiology Epizootiology Clinical Signs Pathology Diagnosis Immunity Public Health Concerns Domestic Animal Health Concerns Wildlife Population Impacts Treatment and Control Management Implications Acknowlegements Literature Cited
Authors
Erhard F. Kaleta, Douglas E. Docherty