Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5586
Suggestions for new and aspiring graduate students in wildlife science Suggestions for new and aspiring graduate students in wildlife science
The transition from an undergraduate to a graduate program can be a difficult experience for students. Many undergraduates are unfamiliar with the process of preparing for graduate school, especially the search for a graduate program. Once in graduate school, they may be unfamiliar with requirements (both written and unwritten) and expectations, and they may also lack the necessary...
Authors
Richard A. Fischer, Sammy L. King
Radar remote sensing of wetlands Radar remote sensing of wetlands
No abstract available.
Authors
Elijah Ramsey III
Observations on insect use of Chinese Tallow [Sapium sebiferum (L.) Roxb.] in Louisiana and Texas Observations on insect use of Chinese Tallow [Sapium sebiferum (L.) Roxb.] in Louisiana and Texas
No abstract available
Authors
Stephen R. Johnson, Larry K. Allain
Effects of vertebrate herbivores on soil processes, plant biomass, litter accumulation and soil elevation changes in a coastal marsh Effects of vertebrate herbivores on soil processes, plant biomass, litter accumulation and soil elevation changes in a coastal marsh
1 Submergence of coastal wetlands in Louisiana is currently rapid and widespread. A number of factors contribute to this loss of habitat, including the activities of herbivores. The objective of this study was to examine the effects of large mammals, predominantly nutria and wild boar, on processes controlling soil elevation in coastal marshes. 2 Effects of herbivores on soil and...
Authors
Mark Ford, James B. Grace
Both contaminants and habitat limit Neosho madtom (Noturus Placidus) numbers in the Spring River, a midwestern warmwater stream effected by runoff from historic zinc and lead mining Both contaminants and habitat limit Neosho madtom (Noturus Placidus) numbers in the Spring River, a midwestern warmwater stream effected by runoff from historic zinc and lead mining
No abstract available.
Authors
Mark L. Wildhaber, Ann L. Allert, Christopher J. Schmitt
Occurrence of acetanilide herbicide metabolites in tile runoff and ground Occurrence of acetanilide herbicide metabolites in tile runoff and ground
No abstract available.
Authors
E.M. Thurman, D.W. Kolpin, S. J. Kalkhoff, P. J. Phillips
Survival of female northern pintails wintering in southwestern Louisiana Survival of female northern pintails wintering in southwestern Louisiana
The North American breeding population of northern pintails (Anas acuta) has reached previously unprecedented low numbers 4 times since 1983. Because pintails show high fidelity to wintering areas, regional survival estimates and identification of factors influencing survival are needed to guide management of wintering pintails. We used radiotelemetry to estimate survival rates of female...
Authors
Robert R. Cox, Alan D. Afton, Richard M. Pace
Water-quality data and methods of analysis for samples collected near a plume of sewage-contaminated ground water, Ashumet Valley, Cape Cod, Massachusetts, 1993-94 Water-quality data and methods of analysis for samples collected near a plume of sewage-contaminated ground water, Ashumet Valley, Cape Cod, Massachusetts, 1993-94
No abstract available.
Authors
Jennifer G. Savoie, Denis R. LeBlanc
Factors influencing cattail abundance in the northern Everglades Factors influencing cattail abundance in the northern Everglades
Since the early 1900s, the Everglades have been influenced by anthropogenic actions including altered hydrology and increased nutrient loading. In the northern Everglades an apparent effect of these disturbances has been the development and proliferation of dense cattail (Typha spp. ) stands in areas previously dominated by sawgrass (Cladium jamaicense Crantz) and sloughs. Cattail cover...
Authors
S. Newman, J. Schuette, James B. Grace, K. Rutchey, T. Fontaine, K.R. Reddy, M. Pietrucha
Hydrogeology and water quality in the Cedar Rapids area, Iowa, 1992-96 Hydrogeology and water quality in the Cedar Rapids area, Iowa, 1992-96
The U.S. Geological Survey (USGS) and the city of Cedar Rapids conducted a cooperative study from 1992 to 1996 to assess the hydrogeology and water quality in the Cedar River, Cedar River alluvial aquifer, Devonian aquifer, and Silurian aquifer in a 231-square-mile area of Benton and Linn Counties near Cedar Rapids, Iowa. The city of Cedar Rapids withdrew an average of 34 million gallons...
Authors
P.M. Schulmeyer, D.J. Schnoebelen
On the use of path analysis and related procedures for the investigation of ecological problems On the use of path analysis and related procedures for the investigation of ecological problems
No abstract available.
Authors
James B. Grace, Bruce H. Pugesek