Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5585
On the need for a national (US) research program to elucidate the potential risks to human health and the environment posed by contaminants of emerging concern On the need for a national (US) research program to elucidate the potential risks to human health and the environment posed by contaminants of emerging concern
No abstract available.
Authors
P.J. Novak, William A. Arnold, V. S. Blazer, R.U. Halden, R.D. Klaper, D.W. Kolpin, D. Kriebel, N.G. Love, D. Martinovic-Weigelt, H.B. Patisaul, S.A. Snyder, F. S. vom Saal, A.V. Weisbrod
Mercury bioaccumulation and biomagnification in Ozark stream ecosystems Mercury bioaccumulation and biomagnification in Ozark stream ecosystems
Crayfish (Orconectes spp.), Asian clam (Corbicula fluminea), northern hog sucker (hog sucker; Hypentelium nigricans), and smallmouth bass (smallmouth; Micropterus dolomieu) from streams in southeastern Missouri (USA) were analyzed for total mercury (HgT) and for stable isotopes of carbon (δ13C), nitrogen (δ15N), and sulfur (δ34S) to discern Hg transfer pathways. HgT concentrations were...
Authors
Christopher J. Schmitt, Craig A. Stricker, William G. Brumbaugh
Water-quality characteristics of urban storm runoff at selected sites in East Baton Rouge Parish, Louisiana, February 2006 through November 2009 Water-quality characteristics of urban storm runoff at selected sites in East Baton Rouge Parish, Louisiana, February 2006 through November 2009
Water samples were collected at three watersheds in East Baton Rouge Parish, Louisiana, during February 2006 through November 2009 for continued evaluation of urban storm runoff. The watersheds represented land uses characterized predominantly as established commercial, industrial, and residential. The following water-quality data are reported: physical and chemical-related properties...
Authors
C. Paul Frederick
Are all intertidal wetlands naturally created equal? Bottlenecks, thresholds and knowledge gaps to mangrove and saltmarsh ecosystems Are all intertidal wetlands naturally created equal? Bottlenecks, thresholds and knowledge gaps to mangrove and saltmarsh ecosystems
Intertidal wetlands such as saltmarshes and mangroves provide numerous important ecological functions, though they are in rapid and global decline. To better conserve and restore these wetland ecosystems, we need an understanding of the fundamental natural bottlenecks and thresholds to their establishment and long-term ecological maintenance. Despite inhabiting similar intertidal...
Authors
Daniel A. Friess, Ken W. Krauss, Erik M. Horstman, Thorsten Balke, Tjeerd J. Bouma, Demis Galli, Edward L. Webb
Productivity is a poor predictor of plant species richness Productivity is a poor predictor of plant species richness
For more than 30 years, the relationship between net primary productivity and species richness has generated intense debate in ecology about the processes regulating local diversity. The original view, which is still widely accepted, holds that the relationship is hump-shaped, with richness first rising and then declining with increasing productivity. Although recent meta-analyses...
Authors
Peter B. Adler, Eric W. Seabloom, Elizabeth T. Borer, Helmut Hillebrand, Yann Hautier, Andy Hector, W. Stanley Harpole, Lydia R. O’Halloran, James B. Grace, T. Michael Anderson, Jonathan D. Bakker, Lori A. Biederman, Cynthia S. Brown, Yvonne M. Buckley, Laura B. Calabrese, Cheng-Jin Chu, Elsa E. Cleland, Scott L. Collins, Kathryn L. Cottingham, Michael J. Crawley, Ellen Ingman Damschen, Kendi F. Davies, Nicole M. DeCrappeo, Philip A. Fay, Jennifer Firn, Paul Frater, Eve I. Gasarch, Daneil S. Gruner, Nicole Hagenah, Janneke Hille Ris Lambers, Hope Humphries, Virginia L. Jin, Adam D. Kay, Kevin P. Kirkman, Julia A. Klein, Johannes M.H. Knops, Kimberly J. La Pierre, John G. Lambrinos, Wei Li, Andrew S. MacDougall, Rebecca L. McCulley, Brett A. Melbourne, Charles E. Mitchell, Joslin L. Moore, John W. Morgan, Brent Mortensen, John L. Orrock, Suzanne M. Prober, David A. Pyke, Anita C. Risch, Martin Schuetz, Melinda D. Smith, Carly J. Stevens, Lauren L. Sullivan, Gang Wang, Peter D. Wragg, Justin P. Wright, Louie H. Yang
Monitoring coastal inundation with Synthetic Aperture Radar satellite data Monitoring coastal inundation with Synthetic Aperture Radar satellite data
Maps representing the presence and absence of surface inundation in the Louisiana coastal zone were created from available satellite scenes acquired by the Japanese Aerospace Exploration Agency's Advanced Land Observing Satellite and by the European Space Agency's Envisat from late 2006 through summer 2009. Detection of aboveground surface flooding relied on the well-documented and...
Authors
Yukihiro Suzuoki, Amina Rangoonwala, Elijah W. Ramsey
Water resources of Webster Parish Water resources of Webster Parish
In 2005, about 9.52 million gallons per day (Mgal/d) of water were withdrawn in Webster Parish, Louisiana (fig. 1), including about 9.33 Mgal/d from groundwater sources and 0.19 Mgal/d from surface-water sources1 (table 1). Publicsupply use accounted for about 70 percent of the total water withdrawn. Other categories of use included industrial, rural domestic, livestock, general...
Authors
Lawrence B. Prakken, Jason M. Griffith
Water resources of Bossier Parish Water resources of Bossier Parish
In 2005, about 15.8 million gallons per day (Mgal/d) of water were withdrawn in Bossier Parish, Louisiana, including 4.12 Mgal/d from groundwater sources and about 11.7 Mgal/d from surface-water sources. Public-supply use accounted for about 78 percent (12.4 Mgal/d) of the total water withdrawn. Other categories of use included industry, rural domestic, livestock, rice irrigation...
Authors
Lawrence B. Prakken, Jason M. Griffith
Preface: Multiscale feedbacks in ecogeomorphology Preface: Multiscale feedbacks in ecogeomorphology
Geomorphic systems are known to exhibit nonlinear responses to physical–biological feedbacks (Thornes, 1985; Baas, 2002; Reinhardt et al., 2010). These responses make understanding and/or predicting system response to change highly challenging. With growing concerns over ecosystem health, a pressing need exists for research that tries to elucidate these feedbacks (Jerolmack, 2008; Darby...
Authors
Joseph M. Wheaton, Chris Gibbins, John Wainwright, Laurel G. Larsen, Brandon McElroy
Potential use of weather radar to study movements of wintering waterfowl Potential use of weather radar to study movements of wintering waterfowl
To protect and restore wintering waterfowl habitat, managers require knowledge of routine wintering waterfowl movements and habitat use. During preliminary screening of Doppler weather radar data we observed biological movements consistent with routine foraging flights of wintering waterfowl known to occur near Lacassine National Wildlife Refuge (NWR), Louisiana. During the winters of...
Authors
Lori A. Randall, Robert H. Diehl, Barry C. Wilson, Wylie C. Barrow, Clinton W. Jeske
Water-quality requirements, tolerances, and preferences of pallid sturgeon Scaphirhynchus albus in the lower Missouri River Water-quality requirements, tolerances, and preferences of pallid sturgeon Scaphirhynchus albus in the lower Missouri River
Although numerous studies have been completed on pallid sturgeon populations and behavior, few have addressed the potential for water-quality characteristics to limit recruitment and population success of pallid sturgeon. Literature on sturgeon and water-quality data indicates recruitment of pallid sturgeon may be limited by several water-quality characteristics of the lower Missouri...
Authors
Dale W. Blevins
Changes in diameter growth of Taxodium distichum in response to flow alterations in the Savannah River Changes in diameter growth of Taxodium distichum in response to flow alterations in the Savannah River
Efforts to maximize or restore ecological function on floodplains impacted by dam construction have increasingly focused on river flow management. Few studies, however, consider floodplain hydrogeomorphic position and annual climatic variation in dam impact assessment. The Savannah River, a large river ecosystem in the Southeastern United States, was impounded in the 1950's. Our study...
Authors
M Palta, Thomas W. Doyle, C. Rhett Jackson, L Judy Meyer, R Sharitz