Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5566
Abstracts from "Coastal Marsh Dieback in the Northern Gulf of Mexico: Extent, Causes, Consequences, and Remedies Abstracts from "Coastal Marsh Dieback in the Northern Gulf of Mexico: Extent, Causes, Consequences, and Remedies
In the spring of 2000, scientists discovered a new and unprecedented loss of salt marsh vegetation in coastal Louisiana and other areas along the northern coast of the Gulf of Mexico. This dieback of salt marsh vegetation, sometimes called the brown marsh phenomenon', primarily involved the rapid browning and dieback of smooth cordgrass (Spanina alterniflora). Coastal Louisiana has...
Authors
C. Edward Proffitt, Tammy Michelle Charron
Pattern and process of land loss in the Mississippi Delta: A spatial and temporal analysis of wetland habitat change Pattern and process of land loss in the Mississippi Delta: A spatial and temporal analysis of wetland habitat change
An earlier investigation (Turner 1997) concluded that most of the coastal wetland loss in Louisiana was caused by the effects of canal dredging, that loss was near zero in the absence of canals, and that land loss had decreased to near zero by the late 1990s. This analysis was based on a 15-min quadrangle (approximately 68,000 ha) scale that is too large to isolate processes responsible...
Authors
John W. Day, Louis D. Britsch, Suzanne Hawes, Gary P. Shaffer, Denise J. Reed, Donald R. Cahoon
Fire in eastern ecosystems Fire in eastern ecosystems
Prior to Euro-American settlement, fire was a ubiquitous force across most of the Eastern United States. Fire regimes spanned a time-scale from chronic to centuries. Fire severity varied from benign to extreme (fig. 1-2). Today, fire is still a major force on the landscape. In some ecosystems fire stabilizes succession at a particular sere, while in others, succession is set back to...
Authors
Dale D. Wade, Brent L. Brock, Patrick H. Brose, James B. Grace, G. A. Hoch, William A. Patterson III
Disruption and restoration of en route habitat, a case study: The Chenier Plain Disruption and restoration of en route habitat, a case study: The Chenier Plain
Cheniers (relict beach ridges) and other habitats adjacent to ecological barriers may be critical linkages in the migratory pathways of long-distance migratory birds. It is important that these wooded habitats provide enough food and cover at the right time to support these birds’ requirements. To date, little attention has been given to the conservation of coastal woodlands, habitats in...
Authors
Wylie C. Barrow, Chao-Chieh Chen, Robert B. Hamilton, Keith Ouchley, Terry J. Spengler
Louisiana gap analysis project Louisiana gap analysis project
No abstract available.
Authors
James Johnston, Steven Hartley
The hidden costs of coastal hazards: Implications for risk assessment and mitigation The hidden costs of coastal hazards: Implications for risk assessment and mitigation
Two-year study undertaken by the H. John Heinz III Center for Science, Economics and the Environment to develop new strategies to identify and reduce the costs of weather-related hazards associated with rapidly increasing coastal development activities.
Authors
H. Kunreuther, R. Platt, S. Baruch, R. L. Bernknopf, M. Buckley, V. Burkett, D. Conrad, T. Davidson, K. Deutsch, D. Geis, M. Jannereth, A. Knap, H. Lane, G. Ljung, M. McCauley, D. Mileti, T. Miller, B. Morrow, J. Meyers, R. Pielke, A. Pratt, J. Tripp
Book review: Carbon sequestration in soils: Science monitoring and beyond: Conference proceedings: St. Micheals Workshop, Maryland, December 3–5, 1998, NJ: Rosenberg, N.J. Book review: Carbon sequestration in soils: Science monitoring and beyond: Conference proceedings: St. Micheals Workshop, Maryland, December 3–5, 1998, NJ: Rosenberg, N.J.
No abstract available
Authors
Thomas G. Huntington
Effects of animal feeding operations on water resources and the environment; proceedings of the technical meeting, Fort Collins, Colorado, August 30-September 1, 1999 Effects of animal feeding operations on water resources and the environment; proceedings of the technical meeting, Fort Collins, Colorado, August 30-September 1, 1999
No abstract available.
Authors
Franceska D. Wilde, L. J. Britton, C.V. Miller, D.W. Kolpin
Ethoxyresorufin-O-deethylase (EROD) activity in fish as a biomarker of chemical exposure Ethoxyresorufin-O-deethylase (EROD) activity in fish as a biomarker of chemical exposure
This review compiles and evaluates existing scientific information on the use, limitations, and procedural considerations for EROD activity (a catalytic measurement of cytochrome P4501A induction) as a biomarker in fish. A multitude of chemicals induce EROD activity in a variety of fish species, the most potent inducers being structural analogs of 2,3,7,8-tetracholordibenzo-p-dioxin...
Authors
J.J. Whyte, R.E. Jung, C. J. Schmitt, D. E. Tillitt
Water-quality assessment of the Eastern Iowa Basins: Hydrologic and biologic data, October 1996 through September 1998 Water-quality assessment of the Eastern Iowa Basins: Hydrologic and biologic data, October 1996 through September 1998
Hydrologic and biologic data collected from October 1996 through September 1998 in the Eastern Iowa Basins study unit of the U.S. Geological Survey National Water-Quality Assessment Program are presented in this report. Monthly data collected from 12 sites on rivers and streams included measurements of physical properties and determinations of the concentrations of nutrients, major ions...
Authors
Kimberlee K. Akers, Denise L. Montgomery, Daniel E. Christiansen, Mark E. Savoca, Douglas J. Schnoebelen, Kent Becher, Eric M. Sadorf