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: 376
Date published: March 5, 2019
Status: Active

Quantitative Framework to Model Risk of Collisions between Marine Wildlife and Boats

Collisons between wildlife and vehicles threaten many species, and can lead to human loss of life, injuries, and loss of property. USGS is developing models to help evaluate the effectiveness of wildlife protection zones and optimize the design of these protected areas. 

Date published: March 5, 2019
Status: Active

The Nonindigenous Aquatic Species Flood and Storm Tracker (FaST)

Storm-related flooding can lead to the potential spread of nonindigenous (or non-native) aquatic species into waterways they have not been seen in before. The USGS Nonindigenous Aquatic Species program has developed an innovative mapping tool to help natural resource managers with post-storm nonindigenous aquatic species detection and assessment efforts. 

Date published: March 4, 2019
Status: Active

Natural Resource Damage and Assessment (NRDA) Program Monitoring and Adaptive Management

State and Federal agencies are working together to assess the damage caused by the Deepwater Horizon oil spill and to determine appropriate restoration actions to restore natural resources, ecological services, and recreational services injured or lost due to the incident. 

Date published: March 1, 2019
Status: Active

Climate Change Adaptation for Coastal National Wildlife Refuges

National Wildlife Refuges provide habitat for important fish and wildlife species and services that benefit coastal communities, like storm-surge protection. USGS scientists are helping coastal refuges plan for and adapt to sea-level rise. 

Date published: February 28, 2019
Status: Active

Decision Analysis to Help Improve the Effectiveness of Invasive Plants Management

Melaleuca is an invasive tree that is highly problematic in the Everglades, threatening native wildlife and habitat. USGS is helping to improve management strategies for the invasive plant. 

Date published: February 28, 2019
Status: Completed

Fish Slam November 2018

In November 2018, USGS researchers joined partners in South Florida where they sampled freshwater bodies for non-native fishes. The bi-annual Fish Slam event helps monitor new introductions and document range expansion of known non-native fishes. 

Date published: February 28, 2019
Status: Active

Quantifying Restoration Benefits to Native Stream Fishes

This project is a collaboration of scientists from the USGS and University of Georgia to collect and analyze data describing how small-stream fishes use habitats created through stream restoration activities.  The USFWS Region 4 requested this Science Support Partnership (SSP) project as a means to evaluate the effectiveness of stream restoration (primarily in north Georgia, and potentially in...

Date published: February 28, 2019
Status: Completed

South Carolina Flood Frequency Q&A

In 2015, Dr. Robert Holmes, USGS National Flood Hazard Coordinator, took time to discuss some issues related to the flooding in South Carolina following the Appalachian Floods and Hurricane Joaquin.

Date published: February 27, 2019
Status: Completed

2015 Appalachian Floods and Hurricane Joaquin

Learn more about USGS flood activities related to the 2015 Appalachian Floods and Hurrican Joaquin. An upper atmospheric low-pressure system over the Southeast combined with moisture from Hurricane Joaquin off the Atlantic coast to create historic rainfall in early October, 2015, across South Carolina.

Date published: February 27, 2019
Status: Active

Effects of Native and Non-native Fishes on Native Apple Snail Population Dynamics

The Florida apple snail is a critical component of the state's wetland food webs. USGS scientists assess the effects of native and non-native fishes on the native snail populations.

Contacts: Pamela J Schofield, Ph.D., Daniel Slone, Ph.D., Philip C. Darby, Ph.D., Silvia M. Gutierre, Ph.D.
Date published: February 27, 2019
Status: Active

Development of a Quantitative Risk Assessment Tool to Predict Invasiveness of Non-native Freshwater Fishes in Everglades National Park

The introduction of non-native fishes is a problem across the United States, particularly in Florida. USGS scientists are developing a decision support tool to help natural resourece managers prioritize which species to focus prevention, detection, rapid response, and control efforts. 

Contacts: Pamela J Schofield, Ph.D., Daniel Slone, Ph.D., William F. Loftus, Jeff Kline
Filter Total Items: 70
Date published: November 29, 2016

Tennessee Current Water Conditions

See Current Water Conditions for Tennessee using our new interactive map. Here you can find information on Groundwater, Surface Water and Water Quality.

Date published: November 29, 2016

Alabama Current Water Conditions

See Current Water Conditions for Alabama using our new interactive map. Here you can find information on Groundwater, Surface Water and Water Quality. 

Date published: October 7, 2016

Hurricane and Flood Response Map Viewer

The USGS Flood Event Viewer (FEV) is the public data discovery component of the Short-Term Network (STN) database. Data viewable and downloadable from this page are from the STN database. This application integrates with the USGS National Water Information System (NWIS) database  for display of time-series water data.

Date published: September 26, 2016

Memphis Area Groundwater-Level Network

Groundwater Watch is a supplemental tool to NWISWeb and, as such, is able to provide additional benefits to the groundwater community. NWIS is the authoritative database for USGS groundwater data, and NWISWeb is the public interface for these groundwater data. This is information pertaining to the Memphis Area Groundwater-Level Network.

Date published: September 20, 2016

StreamStats for Georgia, North and South Carolina

StreamStats is a Web-based Geographic Information Systems (GIS) application that provides users with access to an assortment of analytical tools that are useful for a variety of water-resources planning and management purposes, and for engineering and design purposes.

Date published: April 21, 2016

Sea-Level Rise Visualization for Alabama and Mississippi

The interactive sea-level rise visualization tool results from a collaborative effort between NOAA's Coastal Services Center, USGS WARC, and USGS Mississippi Water Science Center. The tool illustrates the scale of potential flooding, but not the exact location, and does not account for erosion, subsidence, sediment accretion, or future construction. 

Date published: April 21, 2016

Alabama Strategic Habitat Units Applications

WARC's Advanced Applications Team develops and maintains databases and applications to help the Alabama Department of Transportation and the U.S. Fish and Wildlife Service ensure new road construction and existing road maintenance at waterway crossings don't adversely affect threatened and endangered species dependent on those waterways. 

Date published: April 20, 2016

Structures Data

USGS data portray selected structures data, including the location and characteristics of manmade facilities. Characteristics consist of a structure's physical form (footprint), function, name, location, and detailed information about the structure. The types of structures collected are largely determined by the needs of the disaster planning and response and homeland security organizations....

Date published: April 19, 2016

The United States Interagency Elevation Inventory (USIEI)

The USIEI is a comprehensive, nationwide listing of known high-accuracy topographic and bathymetric data for the United States and its territories. The project is a collaborative effort of the USGS and NOAA with contributions from other federal agencies. The inventory supports the 3D Elevation Program and the Integrated Ocean and Coastal Mapping effort. This resource is updated in Spring and...

Date published: April 19, 2016

Elevation Data

The 3DEP products and services available through The National Map consist of lidar point clouds (LPC), standard digital elevation models (DEMs) at various horizontal resolutions, elevation source and associated datasets, an elevation point query service and bulk point query service. All 3DEP products are available, free of charge and without use restrictions.

Filter Total Items: 5,056
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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

Scaling responses of leaf nutrient stoichiometry to the lakeshore flooding duration gradient across different organizational levels

Most wetlands have been subject to changes in flooding regimes by climate change and human activities, resulting in widespread alteration of wetland plants at different organizational levels. However, scaling the responses of wetland plants to changes in flooding regimes is still challenging, because flooding could indirectly affect wetland plants...

Chen, Yasong; Stagg, Camille; Cai, Yongjiu; Lü, Xiaotao; Wang, Xiaolong; Shen, Ruichang; Lan, Zhichun

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Year Published: 2020

A tropical cyclone-induced ecological regime shift: Mangrove forest conversion to mudflat in Everglades National Park (Florida, USA)

The ecological effects of tropical cyclones on mangrove forests are diverse and highly location- and cyclone-dependent. Ecological resistance, resilience, and enhancement are terms that describe most mangrove forest responses to tropical cyclones. However, in the most extreme cases, tropical cyclones can trigger abrupt and irreversible ecological...

Osland, Michael; Feher, Laura; Anderson, Gordon; Vervaeke, William; Krauss, Ken; Whelan, Kevin R.T.; Balentine, Karen S.; Tiling-Range, G.; Smith, Thomas J.; Cahoon, Donald

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Year Published: 2020

Estimating the effect of winter cover crops on nitrogen leaching using cost-share enrollment data, satellite remote sensing, and Soil and Water Assessment Tool (SWAT) modeling

This study employed a novel combination of data (winter cover crop cost-share enrollment records, satellite remote sensing of wintertime vegetation, and results of Soil and Water Assessment Tool (SWAT) water quality simulations) to estimate the environmental performance of winter cover crops (WCC) at the watershed scale, from 2008 through 2017,...

Hively, W. Dean; Lee, Sangchul; Sadeghi, Ali M.; McCarty, Gregory W.; Lamb, Brian T.; Soroka, Alexander M.; Keppler, Jason; Yeo, In-Young; Moglen, Glenn E.

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Year Published: 2020

Joint seasonality in geographic and ecological spaces, illustrated with a partially migratory bird

As most species live in seasonal environments, considering varying conditions is essential to understand species dynamics in both geographic and ecological spaces. Both resident and migratory species need to contend with seasonality and balance settling in favorable areas with tracking favorable environmental conditions during the year. We present...

Basille, Mathieu; Watling, James I.; Romanach, Stephanie; Borkhataria, Rena R.

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Year Published: 2020

Louisiana Barrier Island Comprehensive Monitoring Program: Mapping habitats in beach, dune, and intertidal environments along the Louisiana Gulf of Mexico shoreline, 2008 and 2015–16

Barrier islands, headlands, and coastal shorelines provide numerous valuable ecosystem goods and services, including storm protection and erosion control for the mainland, habitat for fish and wildlife, salinity regulation in estuaries, carbon sequestration in marshes, and areas for recreation and tourism. These coastal features are dynamic...

Enwright, Nicholas M.; SooHoo, William M.; Dugas, Jason L.; Conzelmann, Craig P.; Laurenzano, Claudia; Lee, Darin M.; Mouton, Kelly; Stelly, Spencer J.
Enwright, N.M., SooHoo, W.M., Dugas, J.L., Conzelmann, C.P., Laurenzano, C., Lee, D.M., Mouton, K., and Stelly, S.J., 2020, Louisiana Barrier Island Comprehensive Monitoring Program—Mapping habitats in beach, dune, and intertidal environments along the Louisiana Gulf of Mexico shoreline, 2008 and 2015–16: U.S. Geological Survey Open-File Report 2020–1030, 57 p., https://doi.org/10.3133/ofr20201030.

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Year Published: 2020

Species richness responses to water withdrawal scenarios and minimum flow levels: Evaluating presumptive standards in the Tennessee and Cumberland River basins

Water resource managers are challenged to balance growing water demand with protecting aquatic ecosystems and biodiversity. Management decisions can benefit from improved understanding of water withdrawal impacts on hydrologic regimes and ecological assemblages. This study used Ecological Limit Functions for fish groups within the Tennessee and...

Driver, Lucas; Cartwright, Jennifer M.; Knight, Rodney; Wolfe, William J.

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Year Published: 2020

Forecasting water demand across a rapidly urbanizing region

Urban growth and climate change together complicate planning efforts meant to adapt to increasingly scarce water supplies. Several studies have independently examined the impacts of urban planning and climate change on water demand, but little attention has been given to their combined impact. Here we forecast urban water demand using a...

Sanchez, Georgina M; Terando, Adam; Smith, Jordan W.; Garcia, Ana M.; Wagner, Chad R.; Meentemeyer, Ross K.

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Year Published: 2020

7700-year persistence of an isolated, free-living coral assemblage in the Galápagos Islands: A model for coral refugia?

In an eastern-Pacific coral assemblage at Devil’s Crown, Galápagos Islands, Ecuador, two coral species, Psammocora stellata and Cycloseris (Diaseris) distorta, form dense populations of unattached colonies on sand and rubble substrata. In the Galápagos, living C. (D.) distorta is found only at this single site, whereas populations of P. stellata...

Feingold, Joshua; Reigl, Bernhard; Hendrickson, Katie; Toth, Lauren T.; Cheng, Hai; Edwards, R. Lawrence; Aronson, Richard B.

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Year Published: 2020

Green turtle mitochondrial microsatellites indicate finer-scale natal homing to isolated islands than to continental nesting sites

 In highly mobile philopatric species, defining the scale of natal homing is fundamental to characterizing population dynamics and effectively managing distinct populations. Genetic tools have provided evidence of regional natal philopatry in marine turtles, but extensive sharing of maternally inherited mitochondrial control region (CR)...

Shamblin, Brian M.; Hart, Kristen; Martin, Kelly J.; Ceriani, Simona A.; Bagley, Dean A.; Mansfield, Katherine L.; Ehrhart, Llewellyn M.; Nairn, Campbell J.

Filter Total Items: 488
December 31, 2018

Green treefrog - Hyla cinerea

Green treefrogs call from their favorite habitat, rivers and lakes. They’re native to Louisiana and Florida, where these were recorded. Credit: Paul Moler, used with permission.

December 31, 2018

Squirrel treefrog - Hyla squirella (Marion)

Squirrel treefrogs are also native to Florida and Louisiana. Hear them calling from ditches, puddles and other ephemeral pools of water. Credit: Paul Moler, used with permission.

Florida Bay at sunset
December 31, 2018

Florida Bay at Sunset, 2018

After a long day collecting cores, the team of scientists watch the sun set over the Florida Bay.

Perspective view of coastal bathymetry looking onshore, St. Thomas, US Virgin Islands
December 21, 2018

Perspective lidar view of coastal bathymetry at St. Thomas, USVI

Perspective view of coastal bathymetry looking onshore, St. Thomas, US Virgin Islands, mapped using lidar and depicted with false-color, showing detailed submerged features, including coral reefs.

Water seeping out of the ground at an exposed driveway cut into the ground.
December 3, 2018

Groundwater can flow out of the ground back to land surface.

My neighbor's driveway with some water on it... not very exciting, but it is an excellent example of how groundwater flows underground and can seep back to the land surface. This simple process demonstrates one of the basic aspects of the water cycle.

 This picture really demonstrates why there is water in many streams even after long periods of no rainfall. You

Time exposure image shows a curving beach and the water is smooth where waves were breaking over a 10-minute period.
November 13, 2018

Isla Verde Video Camera 2 Timex

Time-exposure image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is time-averaged over 10 minutes of video.

Time exposure image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image represents a time-ave
November 13, 2018

Isla Verde Video Camera 3 Timex

Time-exposure image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is time-averaged over 10 minutes of video.

Dark image from a video camera shooting for 10 minutes, shows a beach and where varying degrees of movement happened.
November 13, 2018

Isla Verde Video Camera 4 Variance Image

Variance image of Isla Verde in San Juan, Puerto Rico, from a coastal video monitoring station. Image is compiled from 10 minutes of video and shows areas of more movement as brighter colors.

Filter Total Items: 389
Image: USGS Science Aids Manatees
November 24, 2017

It may be hard to believe the legend that sailors long-at-sea once considered manatees to be mermaids. The manatee nickname – the “Sea Cow” – which comes from the herbivores’ affinity for grazing on vegetation and their slow, ambling way just makes more sense. But a U.S. Geological Survey video reveals that while they may be cow-like, they also have more than a bit of the magical mermaid to them.

Distant view of sandy yellow beach stretching from bottom left to upper right of photo.
November 8, 2017

Coastal communities count on beaches for recreation and for protection from large waves, but beaches are vulnerable to threats such as erosion by storms and flooding. Whether beaches grow, shrink, or even disappear depends in part on what happens just offshore. How do features like shifting sandbars affect waves, currents, and the movement of sand from the beach to offshore and back?

A USGS hydrologic technician examines a wall in Puerto Rico for a high-water mark after flooding from Hurricane Maria.
November 8, 2017

U.S. Geological Survey field crews in Puerto Rico are rapidly repairing the damage wrought by Hurricanes Irma and Maria, tracking the scope of storm floods, and documenting the new contours of rivers re-sculpted by floodwaters and mountains re-shaped by landslides.

A picture of Wise Lake in Congaree National Park, South Carolina.
October 12, 2017

A recent study led by the U.S. Geological Survey in cooperation with the National Park Service found dozens of contaminants within the protected areas of Congaree National Park in South Carolina.

This green disc identifies a USGS High-Water Mark, which was found south of Jacksonville, Florida, September 27, on a canal.
September 28, 2017

Reporters: Do you want to accompany a USGS field crew as they work in the field to document how high the flood waters and storm surge from Hurricane Irma reached around the Jacksonville, Tampa and Fort Myers Areas?

If so, please contact Jeanne Robbins, jrobbins@usgs.gov, 919-571-4017.  

Boat thrown onto land from Hurricane Irma's surge at a ramp in St. Augustine, Florida
September 19, 2017

Editor’s note: this news release will be updated online with more information on the streamgage records being set in Florida as it becomes available

Satellite captured image of the rapidly intensifying storm, Harvey
September 8, 2017

As Harvey’s record breaking rainfall and catastrophic flood waters recede in Texas and western Louisiana, U.S. Geological Survey teams are collecting high water marks, monitoring water levels and coastal change, retrieving storm tide sensors and collecting samples for water quality analysis.

Preparing to measure Irma's storm surge in Puerto Rico
September 6, 2017

 To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Irma, visit the USGS Hurricane Irma page.

Sensor deployment
September 6, 2017

To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Irma, visit the USGS Hurricane Irma page.

Follow Region 2 activities on social media, get contact information for Region 2 USGS centers, and meet Region 2's staff and center directors. 

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