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: 5,170
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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.

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Year Published: 2019

Improving estimates of coral reef construction and erosion with in-situ measurements

The decline in living coral since the 1970s has conspicuously slowed reef construction on a global scale, but the related process of reef erosion is less visible and not often quantified. Here we present new data on the constructional and deconstructional side of the carbonate-budget equation in the Florida Keys, U.S.A. We documented Orbicella spp...

Kuffner, Ilsa B.; Toth, Lauren T.; Hudson, J. Harold; Goodwin, William B.; Stathakopoulos, Anastasios; Bartlett, Lucy; Whitcher, Elizabeth M.

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Year Published: 2019

Factors affecting prey availability and habitat usage of nonbreeding piping plovers (Charadrius melodus) in coastal Louisiana

The Gulf of Mexico is home to a large proportion of the wintering population of the threatened piping plover (Charadrius melodus), but little is known about the bird's ecology in this region. In Louisiana, the majority of nonbreeding piping plovers are found on the state's rapidly eroding barrier islands. Between August 2013 and May 2014, surveys...

Schulz, Jessica L.; Leberg, Paul

Filter Total Items: 498
An alligator rest on exposed limestone bedrock, sunning itself.
March 16, 2008

Alligator Resting in Afternoon Sun

Alligators are very abundant in the freshwater wetlands of Everglades National Park and can usually be seen along the Anhinga trail in the park, especially when water levels are low.  This ~5-foot gator is resting on exposed limestone bedrock alongside the trail.  

Image: An Endangered Red Hawksbill Sea Turtle Swims Over a Threatened Elkhorn Coral in Virgin Islands National Park
January 29, 2008

An Endangered Red Hawksbill Sea Turtle Swims Over a Threatened Elkhorn Coral in Virgin Islands National Park

This photo shows an endangered hawksbill (Eretmochelys imbricata) swimming over a colony of elkhorn coral (Acropora palmata).

USGS scientists are doing research on sea turtles and corals in Florida and the US Virgin Islands.

Satellite image showing a fire.
April 19, 2007

Georgia Fires, USA

The Georgia Fire consisted of two fires, the Sweat Farm Road fire and the Big Turnaround fire. The fires were located 10 miles (16 kilometers) southwest of Waycross, Georgia, and were separated by Swamp Road. The Sweat Farm Road fire, which began on April 16, 2007, burned more than 87 square miles (140 square kilometers) of forest and swampland in southeast Georgia.

Atlanta, Georgia: Impervious areas affect rainfall runoff, flooding, and water quality
December 31, 2005

Impervious areas affect rainfall runoff, flooding, and water quality.

Impervious areas can affect precipitation runoff and flooding, and water quality

If you are not familiar with the term "impervious surface," this picture of a typical landscape in suburban Atlanta, Georgia, USA, will help explain it. As cities grow and more development occurs, the natural landscape is replaced by roads, buildings, housing

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Debris and trees clog upstream part of a highway bridge crossing Peachtree Creek, Atlanta, Ga.
July 10, 2003

Peachtree Creek, Atlanta, Ga. Debris from floods cause bridge problems

Peachtree Creek at Atlanta (USGS 02336300) Water Monitoring Site

Floods are powerful natural mechanisms that can move large amounts of debris seemingly easily. This picture shows the upstream side of a major highway bridge crossing Peachtree Creek in Atlanta, Ga. Looks like flood-borne trees and other debris that have gotten stuck on bridge

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A picture of a cleared lot with construction equipment in TN
July 1, 2003

A cleared lot with construction equipment in TN

A grated lots with construction equiptment. Houses are in the background. The picture was taken in Tennesse as a part of a Land Cover Trends project field trip.

A picture of a logging trunk in Tennessee
July 1, 2003

A logging truck in Tennessee

A logging truck in Tennessee. The picture was taken as a part of a Land Cover Trends project field trip.

A picture of hay bales in a hay field in TN
July 1, 2003

Hay bales in a hay field in TN

Hay bales in a hay field in Tennessee. This picture was taken as part of a Land Cover Trends project field trip.

Filter Total Items: 394
USGS
July 21, 1998

During the week of July 13-17, the U.S. Geological Survey (USGS) examined the coral reefs around Culebra, Puerto Rico.

USGS
June 25, 1998

The Asian swamp eel, a non-native fish, has been found in canals, ditches, streams and ponds near Tampa and Miami, Fla. 

USGS
June 18, 1998

Due to heavy rains pelting eastern Massachusetts in recent days, U.S. Geological Survey (USGS) field crews have been leaning precariously over the sides of bridges throughout the region to obtain accurate measurements of the amount (discharge) and height (stage) of water in swollen streams.

USGS
June 5, 1998

A minor earthquake, preliminary magnitude 3.2 according to the U.S. Geological Survey, occurred in North Carolina at 10:31 p.m. Eastern Daylight Time on June 4. The epicenter was about 10 miles (16 km) west-northwest of Kannapolis and about 20 miles (32 km) north of Charlotte.

USGS
May 29, 1998

From high mountain peaks to lowland rivers, chances are if you flip over a rock or peek in the crevices of a damp log in the Great Smoky Mountains, you just might find a red-cheeked, pygmy, or black-belly salamander. A lucky visitor may even find the rare Junaluska salamander or hear the chorus of serenading American toads after a severe spring storm.

USGS
April 21, 1998

Water quality is generally good in the Georgia-Florida Coastal Plain but has been adversely affected by agricultural and urban land uses in some areas, according to the results of a five-year investigation by the U.S. Geological Survey (USGS).

USGS
April 16, 1998

Concentrations of phosphorus and nitrogen have generally declined since 1980 in streams draining into the Albemarle and Pamlico Sounds in North Carolina but remain high enough to cause water-quality problems in the Neuse and Tar-Pamlico Rivers, according to the results of a 5-year investigation by the U.S. Geological Survey (USGS).

USGS
April 13, 1998

A minor earthquake, preliminary magnitude 3.9 according to the U.S. Geological Survey, occurred in South Carolina at 5:56 a.m. Eastern Daylight Time on April 13. The epicenter was about 25 miles (40 km) north-northeast of Camden, S.C.

USGS
December 16, 1997

A mysterious disease that has killed bald eagles and American coots in southwest Arkansas may now be present in two other states, according to wildlife disease specialists at the U.S. Geological Survey’s National Wildlife Health Center in Madison, Wisconsin.

USGS
December 12, 1997

Further analysis by U.S. Geological Survey seismologists has confirmed that the seismic waves recorded earlier today (corrected time: 3:42 am EST) were generated by the collapse of a mine. The longwall coal mine, is located 35 miles east northeast of Tuscaloosa, Alabama. No other damage or injuries occurred. Shaking was felt only in the immediate vicinity of the mine.

USGS
November 13, 1997

The U.S. Geological Survey is expanding its capabilities in hormone research, studying the role contaminants may play in the reproductive development of amphibian, fish and mussel species.

USGS
October 24, 1997

"This morning’s earthquake in southern Alabama was a wake-up call in more ways than one," said Dr. Mark Schaefer, Acting Director of the U.S. Geological Survey. "It serves to remind all of us that earthquakes are not restricted to California, Washington, and Alaska. The East is earthquake country, too."

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