Unified Interior Regions

Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands)

Regions L2 Landing Page Tabs

Filter Total Items: 371
Date published: April 8, 2016
Status: Active

Stress Physiology, Scaling, and Water Use of Forested Wetland Trees and Stands

USGS investigates the eco-physiological responses of coastal forested wetland vegetation to envrionmental stressors, and what role vegetation may have in affecting local hydrological cycling as a result of these stressors. 

Date published: April 8, 2016
Status: Active

Modeling Tidal Freshwater Forested Wetlands (TFFW) Habitat Changes for Land Management

As tidal freshwater forested wetlands - TFFWs - are influenced by salinty due to salt water intrusion, they may experience changes in plant community composition, growth, and productivity. Models are needed to predict vegetation community change or dieback, as well as changes in carbon sequestration and storage due to changing climate, drought, changes in freshwater discharge, elevated carbon...

Date published: April 8, 2016
Status: Active

Ecology of Tidal Freshwater Forested Wetlands of the Southeastern United States

Tidal freshwater forested wetlands - TFFWs - can be found in the upper intertidal areas of many estuaries and act as a transition between coastal marshes and bottomland hardwood wetlands. However, it is because of their location that makes them vulnerable to sea-level rise, and they are constantly transitioning to different wetland types. USGS addresses how various processes are affected in...

Date published: April 8, 2016
Status: Active

RESTORE Science: Inventory of Gulf of Mexico Ecosystem Indicators Using an Ecological Resilience Framework

To effectively manage an ecosystem, resource managers need a way to evaluate its health and ability to function. Metrics that indicate ecosystem condition - or indicators - can be used to help determine how well management strategies work. 

Date published: April 8, 2016
Status: Active

Dynamics and Fluxes of Nutrients along Environmental Gradients in the Florida Everglades, USA

USGS research in the Florida Everglades will provide information on how environmental conditions and disturbances impact carbon storage in mangrove systems.

Date published: April 7, 2016
Status: Completed

Identification of Previously Undocumented Florida Grasshopper Sparrow and Confirmation of the Current Population Status and Distribution

Population trends suggest that the Florida Grasshopper Sparrow may go extinct within five years. USGS research aims to collect demographic information to help identify the current status of the species.

Date published: April 7, 2016
Status: Active

Plant Community Dynamics in a Mangrove-to-Marsh Transition Zone

Mangroves will compete with salt marsh plants in transitional areas, and recent studies have documented the expansion of mangroves into marsh habitats. To better understand the plant community dynamics in this transition zone, USGS scientists are tracking vegeation changes over time in south Florida. 

Date published: April 7, 2016
Status: Active

Surface Elevation Vulnerability of Coastal Forested Wetlands to Sea-Level Rise

Wetlands vary in their abilities to keep up with sea-level rise; they either adjust vertically and/or move inland. USGS is working with partners around the world to measure rates of surface elevation change relative to local sea-level rise. 

Date published: April 6, 2016
Status: Active

Efficacy of eDNA as an Early Detection and Rapid Response Indicator for Burmese Pythons in the Northern Greater Everglades Ecosystem

Traditional approaches to locating Burmese pythons - including visual searches and trapping - have resulted in low detection. Environmental DNA - or eDNA - is increasingly being used to detect the presence of non-native species, particularly when traditional methods may not be adequate. 

Date published: April 6, 2016
Status: Active

Genetic Analysis of the Invasive Burmese Python to Aid Management and Population-Control Decision-Making

Invasive Burmese pythons threaten the success of Everglades restoration efforts. To assist with management and population control decision making, USGS scientists are implementing genetic studies to identify potential new entry pathways and to help quantify the size of the breeding population.

Date published: April 5, 2016
Status: Active

Population Biology and Ecology of Diamondback Terrapins in Mangrove Forested Ecosystems in the Greater Everglades

Long-term capture-recapture research in the Everglades National Park provides baseline information on the Diamondback Terrapin, a species that may be threatened by human disturbances.

Date published: April 5, 2016

Benthic Habitat Characterization and Habitat Use of Endangered Sea Turtles in Marine Protected Areas of the Greater Everglades

USGS assesses how federally endangered sea turtles use the habitat in and around a no-take area in the Dry Tortugas National Park.

Filter Total Items: 5,079
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Year Published: 2019

Revisions to suspended-sediment concentration, percent smaller than 0.063 millimeter, and instantaneous suspended-sediment discharge reported for a cooperative program between the U.S. Geological Survey and the U.S. Army Corps of Engineers in the lower Mississippi-Atchafalaya River Basin, October 1989 to February 2015

This report presents revised results for four parameters reported for suspended-sediment samples that were collected in the lower Mississippi-Atchafalaya River Basin as part of a cooperative program between the U.S. Army Corps of Engineers, Mississippi Valley Division, New Orleans District and the U.S. Geological Survey (USGS). The cooperative...

Norton, Katherine K.; Olsen, Lisa D.; Baumann, Todd E.; Simmons, Lane B.; Clark, Athena P.; Demcheck, Dennis K.; Johnson, Marlon
Norton, K.K., Olsen, L.D., Baumann, T.E., Simmons, L.B., Clark, A.P., Demcheck, D.K., and Johnson, M., 2019, Revisions to suspended-sediment concentration, percent smaller than 0.063 millimeter, and instantaneous suspended-sediment discharge reported for a cooperative program between the U.S. Geological Survey and the U.S. Army Corps of Engineers in the lower Mississippi-Atchafalaya River Basin, October 1989 to February 2015: U.S. Geological Survey Scientific Investigations Report 2018–5147, 232 p., https://doi.org/10.3133/sir20185147.

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Year Published: 2019

Linking management planning for coastal wetlands to potential future wave attenuation under a range of relative sea-level rise scenarios

Understanding changes in wave attenuation by emergent vegetation as wetlands degrade or accrete over time is crucial for incorporation of wetlands into holistic coastal risk management. Linked SLAMM and XBeach models were used to investigate potential future changes in wave attenuation over a 50-year period in a degrading, subtropical wetland and...

Hijuelos, Ann; Dijkstra, Jasper; Carruthers, Tim J.B.; Heynert, Karel; Reed, Denise; van Wesenbeeck, Bregje

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Year Published: 2019

Characterization of the exoskeleton of the Antarctic king crab Paralomis birsteini

Ocean acidification is projected to inhibit the biogenic production of calcium-carbonate skeletons in marine organisms. Antarctic waters represent a natural environment in which to examine the long-term effects of carbonate undersaturation on calcification in marine predators. King crabs (Decapoda: Anomura: Lithodidae), which currently inhabit the...

Steffel, Brittan V.; Smith, Kathryn E.; Dickinson, Gary H.; Flannery, Jennifer A.; Baran, Kerstin A.; Rosen, Miranda N.; Mcclintock, James B.; Aronson, Richard B.

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Year Published: 2019

Monitoring live vegetation in semiarid and arid rangeland environments with satellite remote sensing in northern Kenya

As part of the U.S. Department of the Interior’s (DOI) commitment to provide technical assistance to the Kenyan Northern Rangelands Trust (NRT), the U.S. Geological Survey, in collaboration with the DOI International Technical Assistance Program and the U.S. Agency for International Development’s regional mission in East Africa, created a high...

Rangoonwala, Amina; Ramsey III, Elijah W.
Rangoonwala, Amina, and Ramsey, E.W., III, 2019, Monitoring live vegetation in semiarid and arid rangeland environments with satellite remote sensing in northern Kenya: U.S. Geological Survey Open-File Report 2019–1037, 83 p., https://doi.org/10.3133/ofr20191037.

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Year Published: 2019

Eradication of two non-native cichlid fishes in Miami, Florida (USA)

The proliferation of non-native fishes in Florida is a serious problem, and new species continue to be introduced to the state. Fishes in the Family Cichlidae have been especially successful colonizers of south Florida freshwater habitats. Herein we report a multi-agency effort to eradicate two non-native cichlid fishes in Miami, Florida (Bay...

Schofield, Pamela J.; Jelks, Howard L.; Gestring, Kelly B.

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Year Published: 2019

Temperature mediates secondary dormancy in resting cysts of Pyrodinium bahamense (Dinophyceae)

High‐biomass blooms of the toxic dinoflagellate Pyrodinium bahamense occur most summers in Tampa Bay, Florida, USA, posing a recurring threat to ecosystem health. Like many dinoflagellates, P. bahamense forms immobile resting cysts that can be deposited on the seafloor—creating a seed bank that can retain the organism within...

Lopez, Cary B.; Karim, Aliza; Murasko, Susan; Marot, Marci E.; Smith, Christopher G.; Corcoran, Alina A.

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Year Published: 2019

Global patterns of tree stem growth and stand aboveground wood production in mangrove forests

Mangrove forests provide important ecological and economic services including carbon sequestration and storage. The conservation and restoration of mangroves are expected to play an important role in mitigating climate change, and understanding the factors influencing mangrove stem growth and wood production are important in predicting and...

Xiong, Yanmei; Cakir, Roxelane; Phan, Sang Minh; Ola, Anne; Krauss, Ken; Lovelock, Catherine E.

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Year Published: 2019

Flood-inundation maps for the Amite and Comite Rivers from State Highway 64 to U.S. Highway 190 at Central, Louisiana

Flood-inundation maps for a 14.5-mile reach of the Amite River and a 20.2-mile reach of the Comite River from State Highway 64 to U.S. Highway 190 were created by the U.S. Geological Survey (USGS) in cooperation with the City of Central, Louisiana. These maps, which can be accessed through an interactive mapper at the USGS Flood Inundation Mapping...

Storm, John B.
Storm, J.B., 2019, Flood-inundation maps for the Amite and Comite Rivers from State Highway 64 to U.S. Highway 190 at Central, Louisiana: U.S. Geological Survey Scientific Investigations Report 2019–5028, 20 p., https://doi.org/10.3133/sir20195028.

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Year Published: 2019

Jump-starting coastal wetland restoration: A comparison of marsh and mangrove foundation species

During coastal wetland restoration, foundation plant species play a critical role in creating habitat, modulating ecosystem functions, and supporting ecological communities. Following initial hydrologic restoration, foundation plant species can help stabilize sediments and jump-start ecosystem development. Different foundation species, however,...

Yando, Erik S.; Osland, Michael; Jones, Scott; Hester, Mark W.

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Year Published: 2019

The use of national datasets to produce an average annual water budget for the Mississippi Alluvial Plain, 2000–13

OverviewWater is a critically important resource for the Mississippi Alluvial Plain (MAP) region, supporting a multibillion-dollar agricultural industry. There are concerns that continued withdrawals of groundwater for irrigation may decrease future water supplies. The U.S. Geological Survey has a history of conducting research in the MAP region...

Reitz, Meredith; Kress, Wade
Reitz, M., and Kress, W.H., The use of national datasets to produce an average annual water budget for the Mississippi Alluvial Plain, 2000–13: U.S. Geological Survey Fact Sheet 2019–3001, 4 p., https://doi.org/10.3133/fs20193001.

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Year Published: 2019

Success of lake restoration depends on spatial aspects of nutrient loading and hydrology

Many aquatic ecosystems have deteriorated due to human activities and their restoration is often troublesome. It is proposed here that the restoration success of deteriorated lakes critically depends on hitherto largely neglected spatial heterogeneity in nutrient loading and hydrology. A modelling approach is used to study this hypothesis by...

Janssen, Annette B.G.; van Wijk, Dianneke; van Gerven, Luuk P.A.; Bakker, Elisabeth S.; Brederveld, Robert J.; DeAngelis, Donald L.; Janse, Jan H.; Mooij, Wolf M.

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Year Published: 2019

A federal-state partnership for mapping Florida's coast and seafloor

The Florida Coastal Mapping Program, a partnership of state and federal agencies, has a goal of having modern, consistent, high- resolution sea-floor data for all of Florida’s coastal zone in the next decade to support a myriad of coastal zone science and management applications. One of the early steps in the implementation process is to...

Hapke, Cheryl J.; Druyor, Ryan; Baumstark, Rene D.; Kramer, Philip; Fitos, Ekaterina; Fredericks, Xan; Fetherston-Resch, Elizabeth H.

Filter Total Items: 495
USGS
April 30, 2010

GEOSMIN in South Carolina Water's, What is it?

USGS Water Quality Specialist Celeste Journey discusses Geosmin. What is it? What
causes it? and Will it harm you?

Image: Buffalo Trunkfish (Lactophrys trigonus)
March 6, 2010

Buffalo Trunkfish (Lactophrys trigonus)

The Buffalo Trunkfish (Lactophrys trigonus) is larger and less abundant than the Spotted and Smooth Trunkfishes seen frequently in the mangroves.

Close-up of manatee calf underwater
February 24, 2010

Curious manatee calf approaches scientist at Crystal River, Florida

A curious manatee calf encounters a snorkeling scientist as the USGS Sirenia Project conducts fieldwork at Crystal River National Wildlife Refuge, Florida

USGS
January 26, 2010

USGS Hydrologic Data Collection Program in North Carolina

USGS North Carolina Data Chief, Jeanne Robbins, provides an overview on hydrologic data collection techniques for North Carolina.

USGS
January 26, 2010

USGS Hydrologic Investigation of West Africa's Congo River (part one)

USGS South Carolina Water Science Center Data Chief, John Shelton in a special hydrologic expedition down the Congo River, West Africa. Part one of a three part episode, sets the stage for the trials and tribulations of water investigations for a changing world.

Image: Sinkholes in West-central Florida, Freeze Event of 2010
January 1, 2010

Sinkholes in West-central Florida, Freeze Event of 2010

More than 110 sinkholes formed in the Dover area of Florida during a freeze event in January 2010. Ground water levels dropped to record-setting lows as farmers pumped water to irrigate their plants for protection from the cold temperatures. The sinkholes destroyed homes, roads and sections of cultivated areas.

Image: Sinkholes in West-central Florida, Freeze Event of 2010
January 1, 2010

Sinkholes in West-central Florida, Freeze Event of 2010

Strawberry fields surrounded by residential housing with the irrigation pumphouse in the foreground. 

As residential areas encroach on agricultural areas, sinkholes that once only affected croplands, can now pose greater threats to communities and infrastructure. More than 110 sinkholes formed in the Dover area of Florida during a freeze event in January 2010. 

...
Image: Sinkholes in West-central Florida, Freeze Event of 2010
January 1, 2010

Sinkholes in West-central Florida, Freeze Event of 2010

Sinkholes affect structures as well as many types of supporting infrastructure such as buried utilities lines seen here. More than 110 sinkholes formed in the Dover area of Florida during a freeze event in January 2010. Ground water levels dropped to record-setting lows as farmers pumped water to irrigate their plants for protection from the cold temperatures. The

...
Image: Sinkholes in West-central Florida, Freeze Event of 2010
January 1, 2010

Sinkholes in West-central Florida, Freeze Event of 2010

More than 110 sinkholes formed in the Dover area of Florida during a freeze event in January 2010. Ground water levels dropped to record-setting lows as farmers pumped water to irrigate their plants for protection from the cold temperatures. The sinkholes destroyed homes, roads and sections of cultivated areas.

Image: Sinkholes in West-central Florida, Freeze Event of 2010
January 1, 2010

Sinkholes in West-central Florida, Freeze Event of 2010

Cracks shown here in the exterior and supporting structures of this home are indicative of subsidence damage associated with sinkhole activity. More than 110 sinkholes formed in the Dover area of Florida during a freeze event in January 2010. Ground water levels dropped to record-setting lows as farmers pumped water to irrigate their plants for protection from the cold

...
Image: Sinkholes in West-central Florida, Freeze Event of 2010
January 1, 2010

Sinkholes in West-central Florida, Freeze Event of 2010

A sinkhole formed in a roadway caused traffic to detour around it while it is filled in, stabilized and repaved.

More than 110 sinkholes formed in the Dover area of Florida during a freeze event in January 2010. Ground water levels dropped to record-setting lows as farmers pumped water to irrigate their plants for protection from the cold temperatures. The sinkholes

...
Image: Sinkholes in West-central Florida, Freeze Event of 2010
January 1, 2010

Sinkholes in West-central Florida, Freeze Event of 2010

The entire root perimeter of this tree collapsed in response to subsidence activity. More than 110 sinkholes formed in the Dover area of Florida during a freeze event in January 2010. Ground water levels dropped to record-setting lows as farmers pumped water to irrigate their plants for protection from the cold temperatures. The sinkholes destroyed homes, roads and

...
Filter Total Items: 393
USGS
April 26, 2004

Farmlands, wetlands, forests and deserts that composed the American landscape in the early 20th century have frequently been transformed during the past 30 years into mushrooming metropolitan areas as urbanization spreads across the country.

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
February 3, 2004

 

Because of an increasing awareness of the critical role of ground water in sustaining coastal populations, economies, and ecosystems, the U.S. Geological Survey (USGS) has recently published a report that describes ground water conditions in freshwater and saltwater environments along the Atlantic coast. 

USGS science for a changing world logo
April 29, 2003

To find out more about the 4.9 magnitude earthquake that hit along the Alabama-Georgia state line on April 29, 2003, go to the USGS National Earthquake Information Center (NEIC) Web site http://neic.usgs.gov/neis/bulletin/neic_teak_l.html. General information and maps are featured.

USGS
April 29, 2003

To find out more about the 4.9 magnitude earthquake that hit along the Alabama-Georgia state line on April 29, 2003, go to the USGS National Earthquake Information Center (NEIC) Web site http://neic.usgs.gov/neis/bulletin/neic_teak_l.html. General information and maps are featured.

USGS science for a changing world logo
April 18, 2003

A minor earthquake, preliminary magnitude 3.5 according to the U.S. Geological Survey, occurred in Georgia at 1:04 am EST today. 

USGS
April 18, 2003

A minor earthquake, preliminary magnitude 3.5 according to the U.S. Geological Survey, occurred in Georgia at 1:04 am EST today.

USGS science for a changing world logo
April 10, 2003

The USGS has just completed a geologically based assessment of the technically recoverable, undiscovered oil and gas resources of the Appalachian Basin Province. This area includes parts of New York, Pennsylvania, Ohio, Maryland, West Virginia, Virginia, Kentucky, Tennessee, Georgia, and Alabama.

USGS
April 10, 2003

The USGS has just completed a geologically based assessment of the technically recoverable, undiscovered oil and gas resources of the Appalachian Basin Province. This area includes parts of New York, Pennsylvania, Ohio, Maryland, West Virginia, Virginia, Kentucky, Tennessee, Georgia, and Alabama.

USGS science for a changing world logo
January 13, 2003

Scientists from the U.S. Geological Survey (USGS) and the Center for Earthquake Research and Information at the University of Memphis have updated their expectations for earthquakes in the New Madrid Seismic Zone.

USGS science for a changing world logo
November 13, 2002

Hurricanes brush or hit Charleston, S.C., about once every five and a half years, often generating large storm surges on top of already impressive tides. A hurricane that hit Charleston in 1752 caused a storm surge that nearly covered the entire present downtown area, according to one source. When the wind shifted, the water level fell 5 feet in 10 minutes.

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