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: 5,373
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Year Published: 2020

Editorial: Contributions of behavior and physiology to conservation biology

Conservation biology is a rapidly evolving discipline, with its synthetic, multidisciplinary framework expanding extensively in recent years. Seemingly disparate disciplines, such as behavior and physiology, are being integrated into this discipline's growing portfolio, resulting in diverse tools that can help develop conservation solutions....

Gabor, Caitlin R; Walls, Susan C.

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Year Published: 2020

Local sea level rise information sheets for Texas, Louisiana, Mississippi, Alabama and Florida

Two Pagers for Federally Managed Lands The Northern Gulf of Mexico Sentinel Site Cooperative partnered with individuals at the U.S. Geological Survey’s Wetland and Aquatic Research Center and the U.S. Fish and Wildlife Service to produce customized two-pager information sheets for federal coastal refuges, parks, and reserves across the northern...

Chivoiu, Bogdan; Osland, Michael J.; Collini, Renee C.; Sara Martin; Tirpak, John M.; Wilson, Benjamin
Chivoiu, B., Osland, M.J., Collini, R., Martin, S., Tirpak, J., and Wilson, B., 2020, Local sea level rise information sheets for Texas, Louisiana, Mississippi, Alabama and Florida: Northern Gulf of Mexico Sentinel Site Cooperative, U.S. Geological Survey and U.S. Fish and Wildlife Service: Mississippi-Alabama Sea Grant Consortium, http://masgc.org/northern-gulf-of-mexico-sentinel-site-co/two-pager.

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Year Published: 2020

Submarine canyons influence macrofaunal diversity and density patterns in the deep-sea benthos

Submarine canyons are often morphologically complex features in the deep sea contributing to habitat heterogeneity. In addition, they act as major conduits of organic matter from the shallow productive shelf to the food deprived deep-sea, promoting gradients in food resources and areas of sediment resuspension and deposition. This study focuses on...

Robertson, Craig M.; Demopoulos, Amanda; Bourque, Jill; Mienis, Furu; Duineveld, Gerard; Lavaleye, Mark; Koivisto, R.; Brooke, S.; Ross, S.; Rhode, M.; Davies, A.

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Year Published: 2020

GoMAMN Strategic Bird Monitoring Guidelines: Landbirds

Landbirds in the Gulf of Mexico region include an ecologically diverse group of taxa that depend on a wide range of terrestrial habitats and the airspace above them. For the GoMAMN region of the Gulf of Mexico, the Landbird Working Group identified 19 species from 12 families as priorities for monitoring (Table 3.1). In addition, all species that...

Zenzal, Theodore J.; Vermillion, William G.; Ferrato, Jacqueline R.; Randall, Lori A.; Dobbs, Robert Christopher; Baldwin, Heather
Zenzal, T.J., Jr., Vermillion, W.G., Ferrato, J.R., Randall, L.A., Dobbs, R.C., and Baldwin, H.Q., 2020, Chapter 3: GoMAMN Strategic Bird Monitoring Guidelines: Landbirds, in Wilson, R.R., Fournier, A.M.V., Gleason, J.S., Lyons, J.E., and Woodrey, M.S., eds., Strategic Bird Monitoring Guidelines for the Northern Gulf of Mexico. Mississippi Agricultural and Forestry Experiment Station Research Bulletin 1228, Mississippi State University, Mississippi State, MS, p. 25-70, https://gomamn.org/wp-content/uploads/2020/02/GoMAMN_Report_Final.pdf.

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Year Published: 2020

Carbon stock trends of baldcypress knees along climate gradients of the Mississippi River Alluvial Valley using allometric methods

Carbon stock trends of the knees of Taxodium distichum likely vary across climate gradients of the southeastern United States and contribute an unknown quantity of “teal” carbon to inland freshwater wetlands. Knee metrics (e.g., density, height, biomass) were measured in mixed T. distichum swamps across the Mississippi River Alluvial Valley (MRAV...

Middleton, Beth A.

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Year Published: 2020

Mixed organic and inorganic tapwater exposures and potential effects in greater Chicago area, USA

Safe drinking water at the point of use (tapwater, TW) is a public-health priority. TW exposures and potential human-health concerns of 540 organics and 35 inorganics were assessed in 45 Chicago area United States (US) homes in 2017. No US Environmental Protection Agency (EPA) enforceable Maximum Contaminant Level(s) (MCL) were exceeded in any...

Bradley, Paul; Argos, Maria; Kolpin, Dana W.; Meppelink, Shannon M.; Romanok, Kristin; Smalling, Kelly; Focazio, Michael J.; Allen, Joshua M.; Dietze, Julie E.; Devito, Michael J.; Donovan, Ariel; Evans, Nicola; Givens, Carrie E.; Gray, James L.; Higgins, Christopher P.; Hladik, Michelle; Iwanowicz, Luke; Journey, Celeste A.; Lane, Rachael; Laughrey, Zachary; Loftin, Keith A.; McCleskey, R. Blaine; McDonough, Carrie A.; Medlock Kakaley, Elizabeth K; Meyer, Michael T.; Holthouse-Putz, Andrea; Richardson, Susan D; Stark, Alan ; Weis, Christopher P.; Wilson, Vickie S.; Zehraoui, Abderrahman

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Year Published: 2020

Category count models for adaptive management of metapopulations: Case study of an imperiled salamander

Managing spatially structured populations of imperiled species presents many challenges. Spatial structure can make it difficult to predict population responses to potential recovery activities, and learning through experimentation may not be advised if it could harm threatened populations. Adaptive management provides an appealing framework when...

O'Donnell, Katherine; Fackler, Paul L.; Johnson, Fred A.; Bonneau, Mathieu; Martin, Julien; Walls, Susan C.

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Year Published: 2020

Increasing rates of carbon burial in southwest Florida coastal wetlands

Rates of organic carbon (OC) burial in some coastal wetlands appear to be greater in recent years than they were in the past. Possible explanations include ongoing mineralization of older OC or the influence of an unaccounted‐for artefact of the methods used to measure burial rates. Alternatively, the trend may represent real acceleration in OC...

Breithaupt, Joshua L.; Smoak, Joseph M.; Bianchi, Thomas S.; Vaughn, Derrick; Sanders, Christian; Radabaugh, Kara; Osland, Michael J.; Feher, Laura C.; Lynch, James C.; Cahoon, Donald R.; Anderson, Gordon H.; Whelan, Kevin R. T.; Rosenheim, Brad E.; Moyer, Ryan P.; Chambers, Lisa

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Year Published: 2020

Simulation of water-management scenarios for the Mississippi Delta

To compare the effectiveness of proposed alternative water-supply scenarios on future water availability in the Mississippi Delta, the U.S. Geological Survey and the Mississippi Department of Environmental Quality are collaborating on the update and enhancement of an existing regional groundwater-flow model of the area. Through this collaboration...

Haugh, Connor J.; Killian, Courtney D.; Barlow, Jeannie R. B.
Haugh, C.J., Killian, C.D., and Barlow, J.R.B., 2020, Simulation of water-management scenarios for the Mississippi Delta: U.S. Geological Survey Scientific Investigations Report 2019–5116, 15 p., https://doi.org/10.3133/sir20195116.

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Year Published: 2020

Modeling soil porewater salinity response to drought in tidal freshwater forested wetlands

There is a growing concern about the adverse effects of saltwater intrusion via tidal rivers, streams and creeks into tidal freshwater forested wetlands (TFFW) due to sea‐level rise (SLR) and intense and extended drought events. However, the magnitude and duration of porewater salinity in exceedance of plant salinity stress threshold (2 practical...

Wang, Hongqing; Krauss, Ken W.; Noe, Gregory B.; Stagg, Camille L.; Swarzenski, Christopher M.; Duberstein, Jamie A.; Conner, William H.; DeAngelis, Donald L.

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Year Published: 2020

Final project memorandum: Identifying conservation objectives for the Gulf Coast habitats of the black skimmer and gull-billed tern

Many shorebirds and nearshore waterbirds are of conservation concern across the Gulf of Mexico due to stressors such as human disturbance, predation, and habitat loss and degradation. Conservation and protection of these birds is important for the functioning of healthy ecosystems and for maintaining biodiversity in North America. Consequently,...

Cronin, James P.

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Year Published: 2020

Expert bioblitzes facilitate non-native fish tracking and interagency partnerships

Documenting the distribution and composition of non-native species populations can be challenging, especially when species cross jurisdictional boundaries that require interagency coordination. Herein I report the development of three tools that have been used in Florida over the past seven years to assist with tracking of non-native fishes: 1) an...

Schofield, Pamela J.

Filter Total Items: 498
Sealcoated parking lot adjacent to sidewalk
July 29, 2010

Sealcoated parking lot

Sealcoated parking lot. Runoff from coal-tar-sealcoated pavement contains extremely high concentrations of polycyclic aromatic hydrocarbons (PAHs), and is toxic to aquatic life.  Read more here.

USGS
July 12, 2010

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

USGS South Carolina Water Science Center Data Chief, John Shelton in a special hydrologic expedition down West Africa's Congo River. In part two of this three part episode John describes the trials and tribulations of data collection on the Congo River.

June 2, 2010

Effects of Urbanization on Stream Ecosystems

Development can have negative effects on streams in urban and suburban areas. As a watershed becomes covered with pavement, sidewalks, and other types of urban land cover, stream organisms are confronted with an increased volume of storm water runoff, increased exposure to fertilizers and pesticides, and dramatic changes in physical living spaces within the stream itself.

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.

Filter Total Items: 399
USGS science for a changing world logo
September 2, 2004

Based on airborne laser mapping data acquired in cooperation with National Aeronautics and Space Administration (NASA), scientists at the U.S. Geological Survey (USGS) have estimated the coastal-change impacts that may be caused by Hurricane Frances as it makes landfall on the U.S. south Atlantic coast over the Labor Day weekend.

USGS
September 2, 2004

Based on airborne laser mapping data acquired in cooperation with National Aeronautics and Space Administration (NASA), scientists at the U.S. Geological Survey (USGS) have estimated the coastal-change impacts that may be caused by Hurricane Frances as it makes landfall on the U.S. south Atlantic coast over the Labor Day weekend.

USGS science for a changing world logo
August 4, 2004

Manatee populations are growing at healthy rates in two of four regions off Florida’s coast, but may be stalled or declining in the remaining regions, according to a recently released report by the U.S. Geological Survey.

USGS
August 4, 2004

Manatee populations are growing at healthy rates in two of four regions off Florida’s coast, but may be stalled or declining in the remaining regions, according to a recently released report by the U.S. Geological Survey.

USGS
July 14, 2004

Did you know that from your desk you can monitor the effect of this week’s heavy rains throughout the already saturated mid-Atlantic region? The U.S. Geological Survey’s (USGS) WaterWatch Web site can show you what’s happening to streams in your local area and show you the places most affected by heavy rains expected from these storms.

USGS
June 7, 2004

A new assessment of shoreline change on the Gulf of Mexico, released today by the U.S. Geological Survey, shows that 61 percent of the Gulf Coast shoreline is eroding. Some areas are losing sand more rapidly than others and some areas are actually gaining sand.

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 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
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.

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