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: 365
Date published: April 16, 2016
Status: Active

GIS and Custom Application Support for the Gulf Coast Ecosystem Restoration Council

The scientists at the Wetland and Aquatic Science Center (WARC) have provided coastal restoration project managers and decision makers with GIS planning, database and custom application capacity since 1992. The scope and complexity of this support has increased over the years and has resulted in the development of a comprehensive geospatial and advanced application teams that provide decision...

Date published: April 15, 2016
Status: Active

Ecosystem Development After Wetland Restoration and Creation

Wetland restoration and creation efforts are increasingly proposed as means to compensate for wetland losses. To address the need for evaluating the development of ecosystem structure and function in restored and created wetlands, USGS compared created tidal wetlands sites to natural mangrove wetlands in Tampa Bay, Florida. 

Date published: April 11, 2016
Status: Active

Nonindigenous Aquatic Species (NAS) Program

Welcome to the Nonindigenous Aquatic Species (NAS) information resource for the United States Geological Survey. Located at Gainesville, Florida, this site has been established as a central repository for spatially referenced biogeographic accounts of introduced aquatic species. The program provides scientific reports, online/realtime queries, spatial data sets, distribution maps, and general...

Date published: April 8, 2016
Status: Active

Evaluating Structural and Surface Elevation Recovery of Restored Mangroves

Hydrologic restoration is one of several approaches to rehabilitate mangroves on a large-scale. USGS evaluates how solely restoring tidal hydrologic flows affect the recovery of mangroves in Florida. 

Date published: April 8, 2016
Status: Active

Ecology of Greenhouse Gas Emissions from Coastal Wetlands

Wetlands have the potential to absorb large amounts of carbon dioxide via photosynthesis, and flooded soils have low oxygen levels which decrease rates of decomposition to promote the retention of soil carbon. However, the type of greenhouse gases emitted from wetlands varies by wetland type and soil condition. A suite of approaches are being used to assess  fluxes of greenhouses gases, like...

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.

Filter Total Items: 5,251
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Year Published: 2020

A comprehensive approach uncovers hidden diversity in freshwater mussels (Bivalvia: Unionidae) with the description of a novel species

Major geological processes have shaped biogeographical patterns of riverine biota. The Edwards Plateau of central Texas, USA, exhibits unique aquatic communities and endemism, including several species of freshwater mussels. Lampsilis bracteata (Gould, 1855) is endemic to the Edwards Plateau region; however, its phylogenetic relationship...

Inoue, Kentaro; Harris, John L.; Robertson, Clint; Johnson, Nathan; Randklev, Charles R.

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Year Published: 2020

Establishing genome sizes of focal fishery and aquaculture species along Baja California, Mexico

Genome size—the total haploid content of nuclear DNA— is constant in all cells in individuals within a species, but differs among species. Consequently, the genome size is a quantifiable genetic signature that not only characterizes a species, but it can reflect chromatin modifications, which play fundamental roles in most biological processes...

del Mar Ochoa-Saloma, Constanza; Jenkins, Jill A.; Segovia, Manuel A.; Del Rio-Portilla, Miguel A.; Paniagua-Chavez, Carmen G.

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Year Published: 2020

Upwelling buffers climate change impacts on coral reefs of the eastern tropical Pacific

Corals of the eastern tropical Pacific live in a marginal and oceanographically dynamic environment. Along the Pacific coast of Panamá, stronger seasonal upwelling in the Gulf of Panamá in the east transitions to weaker upwelling in the Gulf of Chiriquí in the west, resulting in complex regional oceanographic conditions that drive differential...

Randall, Carly J.; Toth, Lauren T.; Leichter, James J; Mate, Juan L; Aronson, Richard B.

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Year Published: 2020

Enhanced El Niño-Southern Oscillation variability in recent decades

The El Niño–Southern Oscillation (ENSO) represents the largest source of year-to-year global climate variability. While Earth system models suggest a range of possible shifts in ENSO properties under continued greenhouse gas forcing, many centuries of preindustrial climate data are required to detect a potential shift in the properties of recent...

Grothe, Pamela R.; Cobb, Kim M.; Liguori, Giovanni; Di Lorenzo, Emanuele; Capotondi, Antonietta; Lu, Yanbin; Cheng, Hai; Edwards, R. Lawrence; Southon, John R.; Santos, Guaciara M.; Decampo, Daniel M.; Lynch-Stieglitz, Jean; Chen, Tianran; Sayani, Hussein R.; Thompson, Diane M.; Conroy, Jessica L.; Moore, Andrea L.; Townsend, Kayla; Hagos, Melat; O’Connor, Gemma; Toth, Lauren T.

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Year Published: 2019

Spatially referenced models of streamflow and nitrogen, phosphorus, and suspended-sediment loads in the southeastern United States

Spatially Referenced Regression On Watershed attributes (SPARROW) models were applied to describe and estimate mean-annual streamflow and transport of total nitrogen (TN), total phosphorus (TP), and suspended sediment (SS) in streams and delivered to coastal waters of the southeastern United States on the basis of inputs and management practices...

Hoos, Anne B.; Roland II, Victor L.
Hoos, A.B., and Roland, V.L. II, 2019, Spatially referenced models of streamflow and nitrogen, phosphorus, and suspended-sediment loads in the Southeastern United States: U.S. Geological Survey Scientific Investigations Report 2019–5135, 91 p., https://doi.org/10.3133/sir20195135.

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Year Published: 2019

Louisiana Coastal Zone sediment characterization; Comparison of sediment grain sizes for samples collected in 2008 and 2015–2016 from the western Chenier plain to the Chandeleur Islands, Louisiana—Louisiana Barrier Island Comprehensive Monitoring (BICM) Program

Repeated sampling and grain-size analysis of surficial sediments along the sandy shorelines of Louisiana is necessary to characterize coastal-zone sediment properties and evaluate sediment transport patterns within the nearshore environments. In 2008, and again in 2015 and 2016, sediment grab samples were collected along the shorelines of the...

Bosse, Stephen T.; Flocks, James G.; Bernier, Julie C.; Georgiou, Ioannis Y.; Kulp, Mark A.; Brown, Michael
Bosse, S.T., Flocks, J.G., Bernier, J.C., Georgiou, I.Y., Kulp, M.A., and Brown, M., 2019, Louisiana Coastal Zone sediment characterization; Comparison of sediment grain sizes for samples collected in 2008 and 2015–2016 from the western Chenier plain to the Chandeleur Islands, Louisiana—Louisiana Barrier Island Comprehensive Monitoring (BICM) Program: U.S. Geological Survey Open-File Report 2019–1132, 17 p., https://doi.org/10.3133/ofr20191132.

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Year Published: 2019

Council monitoring and assessment program (CMAP) compilation of existing habitat and water quality monitoring and mapping assessments for the Gulf of Mexico Region

This report is a deliverable to the RESTORE Council for Task 7: Document the existing baseline habitat and water quality conditions prior to implementation of the restoration projects; these baseline conditions will serve as a basis for measuring change/progress after restoration. It is the second in a series of CMAP reports. The first report...

Bosch, Julie; Burkart, Heidi; Chivoiu, Bogdan; Clark, Randy; Clement, Chris; Enwright, Nicholas; Giordano, Steve; Jeffrey, Chris; Johnson, Ed; Hart, Rheannon M.; Davidson Hile, Sarah; Howell, Jacob; Laurenzano, Claudia; Lee, Michael T.; McCloskey, Terrence A.; McTigue, Terry; Meyers, Michelle B.; Mize, Scott V.; Monaco, Mark E.; Owen, Kevin; Rebich, Richard A.; Rendon, Samuel H.; Robertson, Ali; Sample, Thomas; Steyer, Gregory D.; Suir, Kevin J.; Swarzenski, Christopher M.; Watson, Katie

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Year Published: 2019

Quantifying changes to infaunal communities associated with several deep-sea coral habitats in the Gulf of Mexico and their potential recovery from the DWH oil spill

Extensive information is available about infaunal soft-sediment communities in the Gulf of Mexico (Gulf) (Pequegnat et al. 1990, Rowe and Kennicutt II 2009, Wei et al. 2010), particularly from the large-scale sampling effort of the Deep Gulf of Mexico Benthos (DGOMB) project in the early 2000s (Rowe and Kennicutt II 2009). Infaunal soft-sediment...

Bourque, Jill R.; Demopoulos, Amanda W.J.

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Year Published: 2019

Cultivating future environmental stewards: A case study at John D. MacArthur Beach State Park

Our study supports previous research suggesting that participation in citizen-science programs can significantly enhance student learning and attitudes about science, while simultaneously promoting environmental stewardship. Providing students with the opportunity to collect scientific data through citizen-science programs can increase their...

Frehm, Veronica L.; Gravinese, Philip M.; Toth, Lauren T.

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Year Published: 2019

Scientist’s guide to developing explanatory statistical models using causal analysis principles

Recent discussions of model selection and multimodel inference highlight a general challenge for researchers, which is how to clearly convey the explanatory content of a hypothesized model or set of competing models. The advice from statisticians for scientists employing multimodel inference is to develop a well‐thought‐out set of candidate models...

Grace, James B.; Irvine, Kathryn

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Year Published: 2019

Simulation of groundwater flow and chloride transport in the “1,500-foot” sand, “2,400-foot” sand, and “2,800-foot” sand of the Baton Rouge area, Louisiana

Groundwater withdrawals since the 1940s have lowered water levels, altered groundwater-flow directions, and caused saltwater to intrude within some freshwater-containing sands of the fluvial-deltaic Southern Hills regional aquifer system beneath Baton Rouge, Louisiana. New interpretations of stratigraphic correlations amongst geophysical well logs...

Heywood, Charles E.; Lindaman, Maxwell A.; Lovelace, John K.
Heywood, C.E., Lindaman, M., and Lovelace, J.K., 2019, Simulation of groundwater flow and chloride transport in the “1,500-foot” sand, “2,400-foot” sand, and “2,800-foot” sand of the Baton Rouge area, Louisiana: U.S. Geological Survey Scientific Investigations Report 2019–5102, 49 p., https://doi.org/10.3133/sir20195102.

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Year Published: 2019

Plot Locator: An app for locating plots in the field

PREMISE: One of the challenges in field biology is locating previously sampled plots. The Plot Locator app was developed to assist field biologists with plot identification and location, with or without GPS or online connectivity. METHODS AND RESULTS: The Plot Locator Android app helps users locate field plots by creating a searchable database...

Boudell, Jere ; Middleton, Beth

Filter Total Items: 500
star coral with black-band disease
August 7, 2010

Star coral, Dichocoenia stokesii, affected by black-band disease

A colony of elliptical star coral, Dichocoenia stokesii, affected by black-band disease (BBD), Florida Keys.

Colony brain coral, Diploria clivosa, affected by black-band disease
August 7, 2010

Colony brain coral, Diploria clivosa, affected by black-band disease

A colony of knobby brain coral, Diploria clivosa, affected by black-band disease (BBD), Florida Keys.

Close-up of the interface between bleached polyps of the great star coral, Montastraea cavernosa, and black-band disease
August 7, 2010

Star coral, Montastraea cavernosa, and black-band disease

Close-up of the interface between bleached polyps of the great star coral, Montastraea cavernosa, and black-band disease (BBD), Florida Keys. The dead coral skeleton behind the black band has become overgrown with green algae.

 

Close-up of the interface between star coral and black-band disease
August 7, 2010

Star coral, Montastraea faveolata, and black-band disease

Close-up of the interface between polyps of the mountainous star coral, Montastraea faveolata, and black-band disease (BBD), Florida Keys. Behind the black band is white coral skeleton remaining after the polyps have died.

Symmetrical brain coral affected by black-band disease
August 6, 2010

Symmetrical brain coral affected by black-band disease

A colony of symmetrical brain coral, Diploria strigosa, affected by black-band disease (BBD), Florida Keys.

Lobed star coral affected by black-band disease
August 4, 2010

Lobed star coral affected by black-band disease

A colony of lobed star coral, Montastraea annularis, affected by black-band disease (BBD), Florida Keys.

colony of grooved brain coral, Diploria labyrinthiformis, affected by black-band disease
August 4, 2010

Grooved brain coral affected by black-band disease

A colony of grooved brain coral, Diploria labyrinthiformis, affected by black-band disease (BBD), Florida Keys.

Bbrain coral, Diploria strigosa, affected by black-band disease
August 4, 2010

Brain coral, Diploria strigosa, affected by black-band disease

A colony of symmetrical brain coral, Diploria strigosa, affected by black-band disease (BBD), Florida Keys.

brain coral, Diploria clivosa, affected by black-band disease
August 2, 2010

Brain coral, Diploria clivosa, affected by black-band disease

A colony of knobby brain coral, Diploria clivosa, affected by black-band disease (BBD), Florida Keys.

Sealed parking lot with wear marks from snow plows
July 30, 2010

Sealed parking lot with wear marks from snowplow

Once applied, sealcoat can be abraded by snowplows, as evidence here, or the abrasive action of car tires. Runoff carrying high-PAH sealcoat particles flows into storm drains, where it can be transported to streams and lakes. Runoff from coal-tar-sealcoated pavement contains extremely high concentrations of polycyclic aromatic hydrocarbons (PAHs), and is toxic to aquatic

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Filter Total Items: 393
USGS
September 16, 2004

The U.S. Geological Survey alerted state and federal agencies today to the increased potential for landslides in the mountainous regions of Georgia, Alabama, Tennessee, Kentucky, Pennsylvania, South Carolina, North Carolina, Virginia, West Virginia, Ohio and Maryland due to anticipated heavy rainfall from Hurricane Ivan.

USGS
September 16, 2004

Scientists at the U.S. Geological Survey (USGS) are closely watching the Gulf of Mexico shoreline to understand the impact of Hurricane Ivan. The shoreline in the Gulf is particularly vulnerable to storm surge and coastal change during hurricanes because of the low elevation, shoreline retreat and subsidence in the Mississippi Delta regions.

USGS science for a changing world logo
September 13, 2004

Scientists at the U.S. Geological Survey are closely watching the long, thin barrier islands that comprise the Gulf of Mexico coast of west Florida as Hurricane Ivan approaches. These islands are particularly vulnerable to storm surge and coastal change during hurricanes because of their low elevation. New elevation maps show just how vulnerable.

USGS
September 13, 2004

Scientists at the U.S. Geological Survey are closely watching the long, thin barrier islands that comprise the Gulf of Mexico coast of west Florida as Hurricane Ivan approaches. These islands are particularly vulnerable to storm surge and coastal change during hurricanes because of their low elevation. New elevation maps show just how vulnerable.

USGS science for a changing world logo
September 9, 2004

Streamgages continue to measure new daily record high flows on waterways along the U.S. eastern seaboard as yet another hurricane promises to deliver more rain to parts of the already soggy region. Although flooding in the immediate Richmond area receded quickly earlier this week, the city may receive additional heavy rainfall from Frances in coming days. 

USGS
September 3, 2004

Streamgages continue to measure new daily record high flows on waterways along the U.S. eastern seaboard as yet another hurricane promises to deliver more rain to parts of the already soggy region.

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.

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