Unified Interior Regions

Region 4: Mississippi Basin

Regions L2 Landing Page Tabs

Filter Total Items: 238
Date published: March 1, 2009

Characterization of Macroinvertebrate and Fish Assemblages at 35 Streams in Southwestern Louisiana and an Assessment of Their Relations to Water-Quality and Physical Habitat

Short Title: Biological Characterization of Louisiana Streams

Project Chief: Billy Justus

Cooperator: U.S. Environmental Protection Agency

Project Time Frame: 2007 - 2009

Information is needed to support water-resources management...

Contacts: Billy G Justus
Date published: February 9, 2009

Preliminary Characterization of Thermal Waters East of Hot Springs National Park - Arkansas

Short Title: Hot Springs Thermal Study

Project Chief: Tim Kresse

Cooperators: Arkansas State Highway and Transportation Department

Project Time Frame: 2007 - 2009

Established in 1832 to preserve 47 hot springs flowing from of Hot Springs Mountain, Hot Springs National Park (HSNP) is the oldest National Park in the...

Contacts: Phillip D Hays
Date published: January 21, 2009

Digital Hydrogeologic Surface and Thickness of the Mississippi Embayment Regional Aquifer Study (MERAS)

Short Title: MERAS Framework

Project Chief: Rheannon Hart

Cooperator: U.S. Geological Survey Office of Ground-Water Resources Program

Project Time Frame: January 2006 - 2009

A hydrogeologic framework for a ground-water flow model is under development as part...

Contacts: Rheannon M Hart
Date published: January 1, 2009

Lower Mississippi River National Rivers and Streams Assessment

Short Title: Mississippi River NRSA

Project Chief: Billy Justus

Cooperator: U.S. Environmental Protection Agency

Project Time Frame: 2008 - 2009

The USGS Arkansas and Missouri Water Science Centers (WSC) are conducting a study for the U.S. Environmental...

Contacts: Billy G Justus
Date published: September 1, 2008

Analysis of Chloride Data in the Alluvial Aquifer of Southeastern Arkansas

Short Title: Southeastern Arkansas Chloride Study
Project Chief: Brian Clark
Cooperator: Boeuf-Tensas Regional Irrigation Water Distribution District
Project Time Frame: July 2007 - September 2008

The Mississippi River Valley alluvial aquifer is one of the highest use aquifer systems...

Contacts: Brian R Clark
Date published: January 1, 2008

Water Quality of Potential Reference Lakes in Two Level-Three Ecoregions of Arkansas

Short Title: Reference Lakes

Project Chief: Billy Justus

Cooperators: Arkansas Department of Environmental Quality and U. S. Environmental Protection Agency

Project Time Frame: 2007 - 2008

The Arkansas Department of Environmental Quality has classified all lakes within Arkansas into five classifications...

Contacts: Billy G Justus
Date published: January 1, 2001
Status: Active

Water Use in Louisiana

The U.S. Geological Survey (USGS), in cooperation with the Louisiana Department of Transportation and Development (DOTD), has collected and published information on water withdrawals and use on a 5-year basis since 1960. The reports present information on withdrawals from ground- and surface-water sources for use in water supply, industry, power generation, rural domestic, livestock,...

Date published: September 15, 2000

East Baton Rouge Parish Hurricane Response Map

In the event of a hurricane, the appropriate response could save your life. This “East Baton Rouge Parish Hurricane Response Map” is a tool that can be useful in making decisions pertaining to evacuation and safety. IF LOCAL AUTHORITIES RECOMMEND EVACUATION, YOU SHOULD LEAVE--via major evacuation routes shown in red. Louisiana State Police Troop (A) headquarters can assist you in the most...

Date published: January 1, 1999

Mississippi Delta Management Systems Evaluation Areas (MDMSEA)

The Mississippi Delta Management Systems Evaluation Areas (MDMSEA) Project began in 1995 with two purposes: 1) to assess how agricultural activities affect water quality; and 2) to evaluate Best Management Practices (BMPs) that mitigate agricultural nonpoint source pollution. The project is located in the northwestern portion of Mississippi, an area of intense agriculture referred to as the...

Date published: September 1, 1977
Status: Active

Arkansas Water Use Program

In 1977, the Congress of the United States recognized the need for uniform, current, and reliable information on water use and directed the U.S. Geological Survey to establish a National Water-Use Information Program (NWUIP) to complement the Survey's data on the availability and quality of the Nations water resources. Since 1985 site-specific water-use data for several categories have been...

Filter Total Items: 4,575
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Year Published: 2020

Updating data inputs, assessing trends, and evaluating a method to estimate probable high groundwater levels in selected areas of Massachusetts

A method to estimate the probable high groundwater level in Massachusetts, excluding Cape Cod and the islands, was developed in 1981. The method uses a groundwater measurement from a test site, groundwater measurements from an index well, and a distribution of high groundwater levels from wells in similar geologic and topographic settings. The U.S...

Barclay, Janet R.; Mullaney, John R.
Barclay, J.R., and Mullaney, J.R., 2020, Updating data inputs, assessing trends, and evaluating a method to estimate probable high groundwater levels in selected areas of Massachusetts: U.S. Geological Survey Scientific Investigations Report 2020–5036, 45 p., https://doi.org/10.3133/sir20205036.

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Year Published: 2020

Effects of barrier island salt marsh restoration on marsh bird occurrence in the Northern Gulf of Mexico

In the Northern Gulf of Mexico, salt marshes are threatened by sea level rise, erosion, and loss of protective barrier islands. These barrier islands provide critical habitat for wildlife, including globally significant populations of marsh and shorebirds. We investigated salt marsh restoration on two Louisiana barrier islands using presence of 8...

Byerly, Paige A.; Waddle, Hardin; Premeaux, Alexis R.; Leberg, Paul L.

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Year Published: 2020

Proposed species extinction target fails to capture the diversity in biodiversity

We believe the 20 species extinction metric is a retrograde proposal, which does not adequately consider the lessons learnt from the 2020 Aichi Biodiversity Targets. Whilst having a single simple overarching target is appealing, we believe a positively-framed target will garner support, rather than one that aims to, at best, limit negative impacts...

O'Brien, David; Hunter, Margaret; Breed, Martin; Bertola, Laura; Ogden, Rob; Palma da Silva, Clarisse; Paz-Vinas, Ivan; Segelbacher, Gernot; Hoban, Sean M.; Jaffe, Rodolfo

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Year Published: 2020

Comparison of SELDM simulated total-phosphorus concentrations with ecological impervious-area criteria

Ecological studies indicate that impervious cover (IC) greater than approximately 5%–20% may have adverse effects on receiving-stream ecology. It is difficult to separate the effects of runoff quality from other effects of urbanization on receiving streams. This study presents the results of a numerical experiment to assess the effects of...

Jeznach, Lillian C.; Granato, Gregory E.

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Year Published: 2020

Characterizing the diverse hydrogeology underlying rivers and estuaries using new floating transient electromagnetic methodology

The hydrogeology below large surface water features such as rivers and estuaries is universally under-informed at the long reach to basin scales (tens of km+). This challenge inhibits the accurate modeling of fresh/saline groundwater interfaces and groundwater/surface water exchange patterns at management-relevant spatial extents. Here we...

Lane, John W.; Briggs, Martin; Maurya, PK; White, Eric A.; Pedersen, JB; Auken, Esben; Terry, Neil; Minsley, Burke J; Kress, Wade; LeBlanc, Denis R.; Adams, Ryan F.; Johnson, Carole D.

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Year Published: 2020

Acris blanchardi (Blanchard's Cricket Frog), Predation

Invertebrates are well-known predators of amphibians with many documented cases of spiders preying upon anurans (reviewed in Toledo 2005. Herpetol. Rev. 36:395–400). Wolf spiders are known to feed on a variety of frogs, including those in the genus Acris (Blackburn et al. 2002. Herpetol. Rev. 33:299). Although typically terrestrial, wolf spiders...

Maldonado, Brittany R.; Glorioso, Brad; Kidder, Raymond P.

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Year Published: 2020

Low-level detection of SFD-causing Ophidiomyces on Burmese Pythons in southwest Florida, with confirmation of the pathogen on co-occurring native snakes

Snake fungal disease (SFD), or ophidiomycosis, is caused by the fungus Ophidiomyces ophiodiicola (Allender et al. 2015; Lorch et al. 2015). SFD is widespread across wild populations in the eastern United States (Lorch et al. 2016) and is known to infect more than 30 species of snake in North America and Europe (Lorch et al. 2016; Franklinos et al...

Glorioso, Brad; Bartoszek, Ian A.; Lorch, Jeffrey M.

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Year Published: 2020

Analysis of movement recursions to detect reproductive events and estimate their fate in central place foragers

Recursive movement patterns have been used to detect behavioral structure within individual movement trajectories in the context of foraging ecology, home-ranging behavior, and predator avoidance. Some animals exhibit movement recursions to locations that are tied to reproductive functions, including nests and dens; while existing literature...

Picardi, Simona; Smith, Brian; Boone, Matthew E.; Frederick, Peter C.; Cecere, Jacopo G.; Rubolini, Diego; Serra, Lorenzo; Pirrello, Simone; Borkhataria, Rena R.; Basille, Mathieu

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Year Published: 2020

Oases of the future? Evaluating springs as potential hydrologic refugia in drying climates

Springs in water-limited landscapes are biodiversity hotspots and keystone ecosystems, disproportionately influencing surrounding landscapes despite their often small areas. Some springs served as evolutionary refugia during previous climate drying, supporting relict species in isolated habitats. Understanding whether springs will provide...

Cartwright, Jennifer M.; Dwire, Kathleen A.; Freed, Zach; Hammer, Samantha J.; McLaughlin, Blair; Misztal, Louise W.; Schenk, Edward J.; Spencer, John R.; Springer, Abraham E.; Stevens, Lawrence E.

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Year Published: 2020

Combining physical and species‐based approaches improves refugia identification

Climate‐change refugia – locations likely to facilitate species persistence under climate change – are increasingly important components of conservation planning. Recent approaches for identifying refugia at broad scales include identifying regions that are projected to experience less severe changes (climatic exposure), that contain a diversity...

Michalak, Julia; Stralberg, Diana; Cartwright, Jennifer M.; Lawler, Joshua J.

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Year Published: 2020

Disturbance refugia within mosaics of forest fire, drought, and insect outbreaks

Disturbance refugia – locations that experience less severe or frequent disturbances than the surrounding landscape – provide a framework to highlight not only where and why these biological legacies persist as adjacent areas change but also the value of those legacies in sustaining biodiversity. Recent studies of disturbance refugia in forest...

Krawchuk, Meg A.; Meigs, Garrett; Cartwright, Jennifer M.; Coop, Jonathan D.; Davis, Raymond J.; Holz, Andres; Kolden, Crystal A.; Meddens, Arjan J.H.

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Year Published: 2020

Methods of collection and quality assessment of arsenic data in well-water supplies in Maine, 2001–2 and 2006–7

The U.S. Geological Survey, in cooperation with the U.S. Centers for Disease Control and Prevention and the Maine Center for Disease Control and Prevention, assessed the chemical characteristics and the occurrence, distribution, and oxidation state of inorganic arsenic in drinking water from selected domestic well-water supplies in Maine in 2001–2...

Culbertson, Charles W.; Caldwell, James M.; Schalk, Luther F.; Manassaram, Deana; Backer, Lorraine C.; Smith, Andrew E.
Culbertson, C.W., Caldwell, J.M., Schalk, L.F., Manassaram, D., Backer, L.C., and Smith, A.E., 2020, Methods of collection and quality assessment of arsenic data in well-water supplies in Maine, 2001–2 and 2006–7: U.S. Geological Survey Data Series 1125, 11 p., https://doi.org/10.3133/ds1125.

Filter Total Items: 254
USGS science for a changing world logo
May 14, 2004

America’s rivers and streams are generally suitable for irrigation, supplying drinking water, and home and recreational uses. However, in areas with significant agricultural and urban development, the quality of our nation’s water resources has been degraded by contaminants such as pesticides, nutrients, and gasoline-related compounds.

USGS
May 14, 2004

America’s rivers and streams are generally suitable for irrigation, supplying drinking water, and home and recreational uses. However, in areas with significant agricultural and urban development, the quality of our nation’s water resources has been degraded by contaminants such as pesticides, nutrients, and gasoline-related compounds.

USGS science for a changing world logo
April 1, 2004

A new map from the U.S. Geological Survey and the Central United States Earthquake Consortium shows that Central States, including Arkansas, Tennessee, Missouri, Kentucky and Indiana are among the most seismically active states east of the Rocky Mountains. More than 800 earthquakes are cataloged on the map that depicts the locations of earthquakes large enough to be felt, since 1699.

USGS
April 1, 2004

A new map from the U.S. Geological Survey and the Central United States Earthquake Consortium shows that Central States, including Arkansas, Tennessee, Missouri, Kentucky and Indiana are among the most seismically active states east of the Rocky Mountains. More than 800 earthquakes are cataloged on the map that depicts the locations of earthquakes large enough to be felt, since 1699.

USGS science for a changing world logo
October 8, 2003

Included this month:

Hurricane Isabel Makes Her Mark on the North Carolina Coast

Mayans in the Everglades?

Submerged Ice Bridge Reveals Ancient Secrets About Alaska

America’s Deepest Coral Reef

Young Tortises on Mojave’s Menu

Measuring Floods From A Distance

Is the World’s Fuel Tank on Empty?

USGS
October 7, 2003

U.S. Geological Survey (USGS) researchers investigating 51 streams in nine Midwestern States found low levels of the herbicide glyphosate in 36 percent of the samples tested, and found its degradation product in 69 percent of the samples tested. Antibiotics were found in few samples.

USGS
December 20, 2001

The U.S. Geological Survey has named Dr. Michael J. Mac as the new Director of the Columbia Environmental Research Center (CERC) in Columbia, Mo.

USGS science for a changing world logo
October 18, 2001

The U.S. Geological Survey (USGS) is participating in nine of the 14 public workshops scheduled by the U.S. Army Corps of Engineers (COE) this fall. The Corps of Engineers is conducting the workshops and a series of hearings to receive public comment on their recently released Revised Draft Environmental Impact Statement to the Master Water Control Manual for the Missouri River system.

USGS
October 8, 2001

Scientists from the U.S. Geological Survey (USGS) in Madison, Wisc., confirmed today that five dead crows found in the St. Louis, Mo., area tested positive for the West Nile Virus. On Thursday, USGS biologists announced that a dead blue jay, found near El Dorado, Ark., also tested positive for the virus. 

USGS
September 5, 2001

Scientists from the U.S. Geological Survey (USGS) in Madison, Wisc., said today that two dead crows, found in the Chicago area tested positive for the West Nile Virus. Last week, dead crows found near Milwaukee also tested positive for the virus. So far this year, West Nile Virus has been identified in 20 states, the District of Columbia and in southern Ontario.

USGS
June 27, 2000

A minor earthquake, preliminary magnitude 3.9 according to the U.S. Geological Survey (USGS), occurred in the northern part of Arkansas at 9:29 p.m.

USGS
November 1, 1999

More than 100 scientists will converge on the Cajundome in Lafayette, La., Nov. 2-4 to share the latest technologies used in studying everything from hurricanes in the Atlantic and Gulf of Mexico to grizzly bears in Yellowstone National Park. They are participants in the U.S. Geological Survey’s symposium, "BioGeo99: Applications of Geospatial Technology to Biological Sciences."