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: 5,136
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Year Published: 2019

Resource concentration mechanisms facilitate foraging success in simulations of a pulsed oligotrophic wetland

ContextMovement of prey on hydrologically pulsed, spatially heterogeneous wetlands can result in transient, high prey concentrations, when changes in landscape features such as connectivity between flooded areas alternately facilitate and impede prey movement. Predators track and exploit these concentrations, depleting them as they arise....

Yurek, Simeon; DeAngelis, Donald L.

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Year Published: 2019

Invasive plant species

Invasive species may be one of the worts environmental problems facing the conservation of natural areas, because of their role in changing ecosystem function. At the same time, invasive species cause much human suffering and economic loss. The approach to eliminating invasive species can be improved by a better understanding of the...

Middleton, Beth A.

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Year Published: 2019

Florida Coastal Mapping Program—Overview and 2018 workshop report

The Florida Coastal Mapping Program is a nascent but highly relevant program that has the potential to greatly enhance the “Blue Economy” of Florida by coordinating and facilitating sea-floor mapping efforts and aligning partner and stakeholder activities for increased efficiency and cost reduction. Sustained acquisition of modern coastal mapping...

Hapke, Cheryl J.; Kramer, Philip A. ; Fetherston-Resch, Elizabeth H.; Baumstark, Rene D.; Druyor, Ryan; Fredericks, Xan; Fitos, Ekaterina
Hapke, C.J., Kramer, P.A., Fetherston-Resch, E.H., Baumstark, R.D., Druyor, R., Fredericks, X., and Fitos, E., 2019, Florida Coastal Mapping Program—Overview and 2018 workshop report: U.S. Geological Survey Open-File Report 2019–1017, 19 p., https://doi.org/10.3133/ofr20191017.

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Year Published: 2019

Coastal habitat change and marine megafauna behavior: Florida manatees encountering reduced food provisions in a prominent winter refuge

A decline in submerged aquatic vegetation (SAV) within Florida’s spring-fed thermal refuges raises questions about how these systems support winter foraging of Florida manatees Trichechus manatus latirostris. We analyzed telemetry data for 12 manatees over 7 yr to assess their use of Kings Bay, a winter refuge with diminished SAV. After...

Littles, Chanda J.; Bonde, Robert K.; Butler, Susan M.; Jacoby, Charles A.; Notestein, Sky K.; Reid, James P.; Slone, Daniel H.; Frazer, Thomas K.

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Year Published: 2019

The plant diversity sampling design for The National Ecological Observatory Network

The National Ecological Observatory Network (NEON) is designed to facilitate an understanding of the impact of environmental change on ecological systems. Observations of plant diversity—responsive to changes in climate, disturbance, and land use, and ecologically linked to soil, biogeochemistry, and organisms—result in NEON data products that...

Barnett, David T.; Adler, Peter B.; Chemel, Benjamin R.; Duffy, Paul A.; Enquist, Brian J.; Grace, James B.; Harrison, Susan P.; Peet, Robert K.; Schimel, David S.; Stohlgren, Thomas J.; Vellend, Mark

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Year Published: 2019

Influence of salinity on relative density of American crocodiles (Crocodylus acutus) in Everglades National Park: Implications for restoration of Everglades ecosystems

The status of the American crocodile (Crocodylus acutus) has long been a matter of concern in Everglades National Park (ENP) due to its classification as a federal and state listed species, its recognition as a flagship species, and its function as an ecosystem indicator. Survival and recovery of American crocodiles has been linked with regional...

Mazzotti, Frank J.; Smith, Brian; Squires, Michiko; Cherkiss, Michael S.; Farris, Seth C; Hackett, Caitlin; Hart, Kristen M.; Briggs-Gonzalez, Venetia; Brandt, Laura A.

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Year Published: 2019

Microclimate influences mangrove freeze damage: Implications for range expansion in response to changing macroclimate

In response to warming winter air temperatures, freeze-sensitive mangrove forests are expected to expand at the expense of freeze-tolerant salt marshes. To better anticipate and prepare for mangrove range expansion, there is a need to advance understanding of the modulating role of microclimate. Here, we synthesized hypotheses regarding the...

Osland, Michael J.; Hartmann, Arik M.; Day, Richard H.; Ross, Michael S.; Hall, Courtney T.; Feher, Laura C.; Vervaeke, William

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Year Published: 2019

Deep search: Deep sea exploration to advance research on coral/canyon/cold seep habitats

Led by the Bureau of Ocean Energy Management (BOEM), the United States Geological Survey (USGS), and OER is an interagency partnership to explore and characterize sensitive deepwater habitats of the U.S. mid- and south Atlantic deep-sea habitats. Sponsored by the National Oceanographic Partnership Program, the study has brought together scientists...

Cordes, Erik E.; Demopoulos, Amanda W.J.; Rasser, Michael; Adams, Caitlin

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Year Published: 2019

Adapting a regional water-quality model for local application: A case study for Tennessee, USA

We evaluated whether SPAtially Referenced Regression On Watershed attributes (SPARROW) models calibrated for two adjacent USA regions could be applied at the local scale to support management decisions for streams in Tennessee. Nutrient-source apportionment of load is important for this local-scale application and demands careful...

Hoos, Anne B.; Wang, Sherry H.; Schwarz, Gregory E.

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Year Published: 2019

Modeling δ18O as an early indicator of regime shift arising from salinity stress in coastal vegetation

In many important coastal habitats, a combination of increasing soil salinization due to sea level rise, reduced precipitation and storm surges may induce regime shift from salinity-intolerant glycophytic vegetation to salinity-tolerant halophytic species. Early detection of regime shift due to salinity stress in vegetation may facilitate...

Teh, Su Yean; Koh, Hock Lye; DeAngelis, Donald L.; Voss, Clifford I.; da Silveira Lobo Sternberg, Leonel

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Year Published: 2019

Hydrodynamic controls on sediment retention in an emerging diversion-fed delta

The morphodynamics of river-dominated deltas are largely controlled by the supply and retention of sediment within deltaic wetlands and the rate of relative sea-level rise. Yet, sediment budgets for deltas are often poorly constrained. In the Mississippi River Delta, a system rapidly losing land due to natural...

Keogh, Molly E.; Kolker, Alexander S.; Snedden, Gregg A.; Renfro, Alisha A.

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Year Published: 2019

Per- and polyfluoroalkyl substances (PFAS) in plasma of the West Indian manatee (Trichechus manatus)

Per- and polyfluoroalkyl substances (PFAS) are ubiquitous, synthetic anthropogenic chemicals known to infiltrate and persist in biological systems as a result of their stability and bioaccumulation potential. This study investigated 15 PFAS, including short-chain carboxylic and sulfonic acids, and their presence in a threatened herbivore...

Palmer, Kady; Bangma, Jacqueline T.; Reiner, Jessica L.; Bonde, Robert K.; Korte, Jeffrey E.; Boggs, Ashley S. P.; Bowden, John A.

Filter Total Items: 496
Image: Lindbergh Beach, U.S. Virgin Islands
May 31, 2002

Lindbergh Beach, U.S. Virgin Islands

A view toward the ocean, featuring a white sand beach, the ocean, and a Seagrape tree partially blocking a palm tree.

Image: Florida Bay
December 13, 1999

Florida Bay

Looking south from the Black Betsy Keys shore, onto waters of Florida Bay. On the horizon, Key islands separate the green bay waters from the blue cloud-filled skies.

Image: Florida Bay sunset
December 11, 1999

Florida Bay sunset

The sky filled with a profusion of colors as the sun slowly set behind this mangrove island in Florida Bay, at the south end of Everglades National Park.

View looking up-stream toward Carraizo Dam, under drought conditions, 1994
December 31, 1994

View looking up-stream toward Carraizo Dam, under drought conditions

View looking up-stream toward Carraizo Dam in Loiza, Puerto Rico, under drought conditions.

Image: Winter Park Florida Sinkhole of 1981
May 10, 1981

Winter Park Florida Sinkhole of 1981

Photo 15 of 15: Water level in sinkhole chimney stabilized since the previous day. View to south across the sinhole. In the following weeks and months, the water level in the sinkhole continued to rise, a likely result of the plugging of the conduit into the Floridan aquifer with the sinkhole debris, fill subsequently emplaced by the city, and natural consolidation

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Image: Winter Park Florida Sinkhole of 1981
May 9, 1981

Winter Park Florida Sinkhole of 1981

Photo 14 of 15: Remnants of community pool in sinkhole. View to east across the sinkhole.

Image: Winter Park Florida Sinkhole of 1981
May 9, 1981

Winter Park Florida Sinkhole of 1981

This collection is a group of 15 images (digitized slides) showing the sinkhole that opened late in the evening of May 8, 1981 near the intersection of South Denning Drive and West Fairbanks Avenue, Winter Park, Florida, USA. The sequence of images, primarily taken on May 9th, shows the enlargement of the sinkhole which completely swallowed a house and undermined an

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Image: Winter Park Florida Sinkhole of 1981
May 9, 1981

Winter Park Florida Sinkhole of 1981

Photo 2 of 15: Cars and house in a sinkhole. Auto mechanic’s garage intact. View to south across the sinkhole.

Image: Winter Park Florida Sinkhole of 1981
May 9, 1981

Winter Park Florida Sinkhole of 1981

Photo 3 of 15: Community pool being undercut by a sinkhole. View to west across the sinkhole.

Image: Winter Park Florida Sinkhole of 1981
May 9, 1981

Winter Park Florida Sinkhole of 1981

Photo 4 of 15: House within the sinkhole. View to north across the sinkhole.

Filter Total Items: 393
USGS
September 2, 1997

Scientists explored a unique reef in the Florida Keys National Marine Sanctuary.

USGS
August 20, 1997

Managers and planners representing Federal, state, and local government agencies and private organizations will gather in Fort Lauderdale on Monday for a 3-day conference (August 25 - 27) to discuss the latest results of more than 50 scientific investigations by the U.S. Geological Survey in South Florida.

USGS
July 30, 1997

An earthquake with a preliminary magnitude of 3.8 occurred in northeastern Tennessee, Wednesday, July 30, 1997 according to the U.S. Geological Survey.

USGS
November 21, 1996

The gasoline additive MTBE (methyl tert-butyl ether) was detected in some urban stormwater samples collected in 16 cities and metropolitan areas by the U.S. Geological Survey, but all detections of MTBE were less than the lower limit of the U.S. Environmental Protection Agency’s draft lifetime health advisory for drinking water.

USGS
September 11, 1996

The especially wet Hurricane Hortense has U.S. Geological Survey hydrologists and technicians working around the clock to measure its impact on the rivers of Puerto Rico. The Rio de la Plata in northeastern Puerto Rico, for example, has reached its highest level ever, exceeding the previous record high flow of Jan. 5, 1992, when the river reached a flow of 82 billion gallons per day.

USGS
September 5, 1996

From coastal erosion to measuring the storm surge and flooding as well as providing maps of affected areas, the U.S. Geological Survey is gearing up to provide information on Hurricane Fran as the storm develops, including real-time data, from its offices in Florida, Georgia, South Carolina, North Carolina, Virginia, Maryland, Delaware, Pennsylvania, New Jersey and New York.

USGS
November 21, 1995

The most important ground-water problems in the states of Illinois, Indiana, Ohio, Kentucky and Tennessee are probably high concentrations of dissolved solids and large water-level declines near wells that pump large amounts of water from the aquifers (underground water-bearing rock layers), according to a new report by the U.S. Geological Survey.

USGS
September 15, 1995

As the U.S. Geological Survey continues to monitor declining streamflows throughout the Northeastern U.S., the Delaware River Basin Commission has issued a drought warning today (Fri., Sept. 15), in the Delaware River basin, limiting reservoir withdrawals and calling for the use of voluntary water conservation measures.

USGS
August 22, 1995

A new satellite image map of south Florida that will aid resource managers planning a $2-3 billion restoration effort in the Everglades and Florida Bay will be presented to the Governor’s office Wednesday (August 23, 1995).

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