Unified Interior Regions

Region 4: Mississippi Basin

Regions L2 Landing Page Tabs

Filter Total Items: 210
Breton Island, USGS oblique aerial photography (08/2013) looking south.
Date Published: January 10, 2018
Status: Active

Integrating Mapping and Modeling to Support the Restoration of Bird Nesting Habitat at Breton Island National Wildlife Refuge

In response to storms, reduced sediment supply, and sea-level rise, Breton Island is rapidly deteriorating, impacting the available nesting habitat of endangered seabirds. This study provides critical information regarding the physical environment of the island system. Research is part of the ...

Map showing the location of geophysical and sediment core data collected between 2009 and 2013, and used in the MsCIP project.
Date Published: January 10, 2018
Status: Active

Science Support for the Mississippi Coastal Improvement Project

Since 2007, the USGS (with NPS and USACE) has been mapping the seafloor and substrate around the Mississippi barrier islands to characterize the near-surface stratigraphy and identify the influence it has on island evolution and fate. Research is part of the Geologic and Morphologic...

Contacts: James Flocks
Detailed map of bathymetric data collected around Cat Island.
Date Published: January 10, 2018
Status: Active

Geologic Evolution of Cat Island, Mississippi

The geologic evolution of Cat Island has been influenced by deltaic, lagoonal/estuarine, tidal, and oceanographic processes, resulting in a complex stratigraphic record.

Moss-draped oak in the Columbia Bottomlands
Date Published: December 11, 2017
Status: Active

Use of Remote Sensing Data to Quantify Bird and Bat Distributions and Inform Migratory Bird Conservation Efforts

Three federal wildlife refuge complexes on the upper Texas coast include portions of the Columbia Bottomlands and other forests that are important for migratory birds and possibly bats: Texas Mid-Coast, Trinity River, and Chenier Plain.

A perspective model of the morphology and geologic framework near Petit Bois Island showing the relationships between seafloor f
Date Published: December 7, 2017
Status: Active

Geologic and Morphologic Evolution of Coastal Margins

A combination of geophysics, sediment sampling, and chronology techniques are used to characterize the regional geomorphologic response of coastal systems to environmental changes.

slide showing timescales addressed by the Barrier Island Evolution Project
Date Published: December 5, 2017
Status: Completed

Barrier Island Evolution

The Barrier Island Evolution Project addresses a research gap between the short time scale of individual storms (hours to days) and the longer time scales associated with the historic and geologic evolution of the coastal system (decades to millennia).

Contacts: Nathaniel Plant
Gulf of Mexico Dashboard USGS Obsservation Stations
Date Published: December 5, 2017
Status: Active

The Gulf of Mexico Water Dashboard: Cross-Center Collaboration Brings Real-time, USGS Water Data to the Gulf Coast through a Spatially Enabled Mapping Application

The USGS Southeast Regional Office has funded a cross-center collaboration between the Wetland and Aquatic Research Center and the Texas Water Science Center for the development of the Gulf of Mexico Water Dashboard. The objective of this effort is to expand the Texas Water Dashboard platform to include the coastal regions of the five Gulf states: Texas, Louisiana, Mississippi, Alabama, and...

Figure 1. The Buffalo National River in Arkansas
Date Published: October 31, 2017
Status: Active

Detecting Differences in Bacterial Metabolism in the Buffalo National River

Each year, the Buffalo National River (BUFF) attracts 1.6 million visitors, many of whom enjoy recreational water activities. Since 2013, a confined animal feeding operation (CAFO) for swine has been operating on Big Creek, a BUFF tributary.

Date Published: August 29, 2017

Hydrologist visits 4th-graders at Baton Rouge public school

Where: Westdale Heights Academic Magnet school, Baton Rouge, LA

Background:  Dennis Demcheck has been volunteering at the public school since 2012, discussing bird identification, migration patterns, and drawing birds. The presentation emphasized scientific observation and the importance of accurate data collection.

Partners/Stakeholders: None. Dennis talked to about 75 students...

Apple snail remains after being preyed upon by a raccoon
Date Published: August 1, 2017
Status: Active

Pilot Testing and Protocol Development of Apple Snail Suppression at Mandalay National Wildlife Refuge

The maculata apple snail (Pomacea maculata) has invaded many coastal and some inland areas in south Louisiana. Reports have indicated that the freshwater snails have significantly reduced the amount of submerged aquatic vegetation (SAV) and floating leaved vegetation (FLV) available for waterfowl and other wildlife.

Sediment Sampling in Louisiana Photo
Date Published: July 10, 2017

Lower Mississippi-Gulf WSC - Baton Rouge Sediment Lab Price List - 2018 Fiscal Year




(Effective date will begin with samples received
by the Laboratory after October 1, 2017)

Ozark Plateaus Hydrogeologic Framework Illustration
Date Published: July 5, 2017

Ozark Plateaus Groundwater Availability Study

The U.S. Geological Survey's Groundwater Resources Program (GWRP) is conducting an assessment of groundwater availability throughout the United States to gain a better understanding of the status of the Nation's groundwater resources and how changes in water use and climate may affect those resources. 


Contacts: Brian R Clark
Filter Total Items: 4,150
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Year Published: 2019

Water for Long Island: Now and for the future

Do you ever wonder where your water comes from? If you live in Nassau or Suffolk County, the answer is, groundwater. Groundwater is water that started out as precipitation (rain and snow melt) and seeped into the ground. This seepage recharges the freshwater stored underground, in the spaces between the grains of sand and gravel in what are...

Masterson, John; Breault, Robert
Masterson, J.P., and Breault, R., 2019, Water for Long Island—Now and for the future: U.S. Geological Survey Fact Sheet 2019–3052, 2 p., https://doi.org/10.3133/fs20193052.

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Year Published: 2019

Standardizing a non-lethal method for characterizing the reproductive status and larval development of freshwater mussels (Bivalvia: Unionoida)

Actively monitoring the timing, development, and reproductive patterns of endangered species is critical when managing for population recovery. Freshwater mussels are among the most imperiled organisms in the world, but information about early larval (glochidial) development and brooding periods is still lacking for many species. Previous studies...

Beaver, Caitlin; Geda, Susan; Johnson, Nathan

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Year Published: 2019

Reaffirmed occurrence of two vulnerable caddisfly species of conservation concern

Maramec Spring is home to two Ozark endemic caddisfly Species of Conservation Concern (SOCC). The Missouri Glyphospsyche Caddisfly, Glyphospsyche missouri, (Critically Imperiled; State Rank-S1; Global Rank-G1) is known from Maramec Spring and the receiving spring branch and nowhere else in the world. Similarly, the Artesian Agapetus Caddisfly,...

Mabee, William; Schuhmann, Andrea; Poulton, Barry C.; Girondo, Jennifer; Swee, Wes; Buckley, Tealetha; Bowles, David; Bowles, Beth; Rhodes, Russell

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Year Published: 2019

Prediction and inference of flow-duration curves using multi-output neural networks

We develop multi-output neural network models (MNNs) to predict flow-duration curves (FDCs) in 9,203 ungaged locations in the Southeastern United States for six decades between 1950-2009. The model architecture contains multiple response variables in the output layer that correspond to individual quantiles along the FDC. During training,...

Worland, Scott C.; Steinschneider, Scott; Asquith, William H.; Knight, Rodney; Wieczorek, Michael

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Year Published: 2019

Applying the ecology of aquatic–terrestrial linkages to freshwater and riparian management

Global stressors such as climate change, invasive species, urbanization, agricultural practices, and pollution can alter aquatic resource subsidies to terrestrial consumers. The effects of these stressors on timing, quality, and quantity of aquatic subsidies, such as adult aquatic insects, to birds, herpetofauna, and mammals, have large...

Kraus, Johanna M.

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Year Published: 2019

Wetland biomass and productivity in Coastal Louisiana: Base line data (1976-2015) and knowledge gaps for the development of spatially explicit models for ecosystem restoration and rehabilitation initiatives

Coastal Louisiana host 37% of the coastal wetland area in the conterminous US, including one of the deltaic coastal regions more susceptible to the synergy of human and natural impacts causing wetland loss. As a result of the construction of flood protection infrastructure, dredging of channels across wetlands for oil/gas exploration and maritime...

Rivera-Monroy, Victor H.; Elliton, Courtney; Narra, Siddhartha; Meselhe, Ehab; Zhao, Xiaochen; White, Eric; Sasser, Charles E.; Visser, Jenneke M.; Meng, X.; Wang, Hongqing; Xue, Zuo; Jaramillo, Fernando

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Year Published: 2019

Environmental DNA (eDNA) detection of nonnative bullseye snakehead in southern Florida

Bullseye Snakehead Channa marulius (Hamilton 1822) was first detected in the southern Florida town of Tamarac in 2000 and has been expanding its geographic range since. Environmental DNA (eDNA) analysis is a newly-developed technique used to noninvasively detect cryptic or low-density species or those that are logistically difficult-to-study....

Hunter, Margaret; Schofield, Pam; Meigs-Friend, Gaia; Brown, Mary; Ferrante, Jason

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Year Published: 2019

Preface: Proceedings of the First International Snakehead Symposium

No abstract available.

Odenkirk, John S.; Chapman, Duane C.

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Year Published: 2019

Hemidactylus parvimaculatus (Sri Lankan spotted house gecko)

USA: LOUISIANA: PLAQUEMINES PARISH: 0.15 km S of the intersection of LA-23 and Jump  road, Venice (29.266630°N, 89.35570°W; WGS 84). 2 May 2019. V. C. Montross and W. McGighan. Verified by Aaron M. Bauer. Florida Museum of Natural History (UF 189238; photo voucher). New parish record. On 2 May 2019, three Hemidactylus parvimaculatus were...

Pellacchia, C. M.; Glorioso, Brad M.; Mendyk, R. W.; Collen, C. A.; Montross, V. C.; McGighan, W.; Macedo, K.; Maldonado, B. R.; Morenc, I. N.

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Year Published: 2019

The long-term effects of Hurricanes Wilma and Irma on soil elevation change in Everglades mangrove forests

Mangrove forests in the Florida Everglades (USA) are frequently affected by hurricanes that produce high-velocity winds, storm surge, and extreme rainfall, but also provide sediment subsidies that help mangroves adjust to sea-level rise. The long-term influence of hurricane sediment inputs on soil elevation dynamics in mangrove forests are not...

Feher, Laura; Osland, Michael; Anderson, Gordon; Vervaeke, William; Krauss, Ken; Whelan, Kevin R. T.; Balentine, Karen M.; Tiling-Range, Ginger; 3663; Cahoon, Donald

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Year Published: 2019

Snakehead fishes (Channa spp.) in the USA

The introduction of snakeheads from their origins in Asia is relatively recent to the conterminous United States with the first of many collections beginning in the late 1990s. For decades they have been commercially fished and aquacultured around the world for human food and, to a lesser degree, for the aquarium trade. Over a dozen snakehead...

Benson, Amy

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Year Published: 2019

Discoveries and novel insights in ecology using structural equation modeling

As we enter the era of data science (Lortie 2018), quantitative analysis methodologies are proliferating rapidly, leaving ecologists with the task of choosing among many alternatives. The use of structural equation modeling (SEM) by ecologists has increased in recent years, prompting us to ask users a number of questions about their experience...

Laughlin, Daniel C.; Grace, James

Filter Total Items: 226
August 27, 2016

Live Chat with James Fountain on Louisiana Floods

This was a Facebook Live video conducted with James Fountain of the USGS discussing the Louisiana flooding in August 2016 and the personal experience James had with this event. Questions and comments during the live video at: https://www.facebook.com/USGeologicalSurvey/videos/1144228595623122/

Two men mark a high-water mark on a structure
August 26, 2016

USGS Scientists Mark a High-Water Mark in Louisiana

Daniel McCay and Chris Henry, USGS hydrologic technicians, use a level to draw a line on a high-water mark August 26. In most circumstances, when a high-water mark is flagged it would then be surveyed with GPS equipment to obtain its exact coordinates and elevation. However, because of the possibility of more storms hitting Louisiana the teams were initially only

Two men walk by debris along the side of the road
August 26, 2016

Looking for High-Water Marks

Daniel McCay and Chris Henry, U.S. Geological Survey hydrologic technicians, search a neighborhood south of Denham Springs, Louisiana, for high-water marks August 26. The term high-water mark refers to the debris flood waters will leave on walls, buildings and trees. This thin line of residue is an indicator of how high the waters reached, yet the fragile nature of

A man in an orange shirt writes on a pad of paper
August 26, 2016

Recording a High-Water Mark

Jonathan Gillip, USGS hydrologist, documents a high-water mark he flagged near a damage retirement community in Denham Springs, Louisiana, August 26. So far, USGS teams have flagged and surveyed more than 400 high-watermarks across southern Louisiana.

Two men stand next to a building in yellow life jackets
August 26, 2016

Surveying a High-Water Mark

Chris Henry and Daniel McCay, USGS hydrologic technicians, use GPS equipment to survey a high-water mark outside of a flooded elementary school in Denham Springs, Louisiana, August 28. This school was located in one of the hardest hit flood areas and the blue line simulates how high the water was at its peak during this historic flood.

August 15, 2016

Flooding near Louisiana Water Science Center

The view on South Sherwood Forest Blvd near the USGS Louisiana Water Science Center office on August 15, 2016.

Image shows a flooded street with green median
August 13, 2016

Flooded Street in Denham Springs

Backwater flooding across Florida Blvd near the Amite River Bridge in Denham Springs, LA.

Image shows a flooded house with trees in the background
August 13, 2016

Flooded House in Denham Springs

A flooded house near the confluence of the Comite and Amite Rivers near Denham Springs, LA.

Image shows flooded houses and vehicles
August 13, 2016

Flooded Neighborhood in Denham Springs

A flooded neighborhood near the confluence of the Comite and Amite Rivers near Denham Springs, LA. 

Photo of USGS Biologist preparing to artificially spawn a female lake sturgeon.
August 5, 2016

Lake sturgeon at the USGS Columbia Environmental Research Center

USGS Biologist prepares to artificially spawn a female lake sturgeon in the laboratory at the Columbia Environmental Research Center.

Photo of USGS biologist preparing to release a reproductive female pallid sturgeon.
August 5, 2016

USGS Biologist prepares to release a reproductive female sturgeon.

USGS Biologist Sabrina Davenport prepares to release a reproductive female pallid sturgeon.

Filter Total Items: 243
July 15, 2015

The drainage of small wetlands can decrease wildlife habitat and may contribute to flooding in the Prairie Pothole Region (PPR), according to a recent U.S. Geological Survey study.

June 29, 2015

Interior Department’s Northeast Climate Science Center has released a report today synthesizing the latest information on the vulnerability of species and ecosystems to climate change in a 22-state region in the Northeast and Midwest U.S.

Updated 2015 version of Saint Landry quadrangle with orthoimage turned on
May 20, 2015

Several of the 812 new US Topo quadrangles for Louisiana now display public trails along with improved data layers. Other significant additions include public land survey system information (PLSS), redesign of map symbols, enhanced railroad information and new road source data.

USGS science for a changing world logo
May 18, 2015

Water contamination by hormone-disrupting pollutants is a concern for water quality around the world. Existing research has determined that elevated concentrations of Bisphenol-A (BPA), a chemical used in consumer products such as plastic food storage and beverage containers, have been deposited directly into rivers and streams by municipal or industrial wastewater.

March 25, 2015

The U.S. Geological Survey’s National Wetlands Research Center in Lafayette and the Southeast Ecological Science Center in Gainesville, Florida will merge under the same leadership effective October 1, 2015.

March 25, 2015

The U.S. Geological Survey’s Southeast Ecological Science Center in Gainesville and the National Wetlands Research Center in Lafayette, Louisiana will merge under the same leadership effective October 1, 2015.

USGS science for a changing world logo
March 24, 2015

Fish exposed to the endocrine-disrupting chemicals bisphenol A (BPA) or 17a-ethinylestradiol (EE2) in a laboratory have been found to pass adverse reproductive effects onto their offspring up to three generations later, according to a new study by the U.S. Geological Survey and the University of Missouri.

Updated 2015 version of Weldon Spring quadrangle with orthoimage turned off
February 18, 2015

Newly released US Topo maps for Missouri now feature selected trails and other substantial updates. The data for the trails is provided to the USGS through a nation-wide “crowdsourcing” project managed by the International Mountain Biking Association (IMBA).

Image: Pallid Sturgeon
January 23, 2015

BOZEMAN – Pallid sturgeon come from a genetic line that has lived on this planet for tens of millions of years; yet it has been decades since anyone has documented any of the enormous fish successfully producing young that survive to adulthood in the upper Missouri River basin.

December 18, 2014

Secretary of the Interior Sally Jewell announced today that Interior’s South Central Climate Science Center is awarding nearly $550,000 to universities and other partners for research to guide managers of parks, refuges and other cultural and natural resources in planning how to help species and ecosystems adapt to climate change.