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: June 1, 2016
Status: Completed

Storm Impact Assessments on Coastal Bird Populations, Behavior, and Nesting along the Outer Banks Barrier Islands, North Carolina

Using historic maps and contemporary imagery, we will quantify and synthesize existing data on the distribution and abundance of shorebirds in North Carolina and changes in habitats related to storms, such as Hurricane Sandy; coastal development, such as the Intracoastal Waterway; inlet modifications; and shoreline erosion to give us a better understanding of historic trends for shorebirds and...

Contacts: Kathryn Spear
Date published: May 23, 2016
Status: Completed

Fish Slam - Spring 2016

May 23, 2016 – Five teams of fishery biologists from the U.S. Geological Survey (USGS), Florida Fish and Wildlife Conservation Commission (FWC), the National Park Service (NPS), Florida Museum of Natural History (FLMNH), University of Florida (UF), and Florida International University (FIU) sampled 12 sites for non-native fishes in Broward and Miami-Dade counties in southeastern Florida.

Date published: May 11, 2016
Status: Active

Impacts of Sea Level Rise & Ecosystem Restoration on Wildlife

The interior marshes of the Ten Thousand Islands National Wildlife Refuge (TTINWR) are currently negatively impacted by sea level rise through saltwater intrusion from the south which furthers mangrove encroachment into the freshwater marsh.

Date published: May 11, 2016
Status: Active

Assessment of Small Mammal Demographics and Communities in the Picayune Strand Restoration Area

The Picayune Strand Restoration Project (PSRP) is in the process of restoring pre-drainage hydrology to the southwest portion of the Greater Everglades ecosystem.

Date published: May 11, 2016
Status: Active

Assessment of Small Mammal Demographics and Communities in Everglades National Park

The decline of mammal populations in Everglades National Park (ENP) over the last 20 years is likely to influence the ecology of the Everglades system and the likelihood of successful Everglades restoration.

Date published: May 11, 2016
Status: Archived

Wildlife Indicators of Greater Everglades Restoration Progress, Climate Change, and Shifts in Ecosystem Service

As Greater Everglades restoration project implementation progresses, wetlands in near coastal areas may undergo changes in salinity, hydroperiod, and water depth.

Date published: May 6, 2016
Status: Active

Joint Ecosystem Modeling: Greater Everglades Modeling Decision Support Tools

The Joint Ecosystem Modeling team is developing and applying ecological models and other decision support tools for Greater Everglades restoration project planning.

Date published: May 6, 2016
Status: Active

Optimal Control Strategies for Invasive Exotics in South Florida

The establishment and proliferation of exotic plants and animals can interfere with native ecological processes and can cause severe stress to sensitive ecosystems.

Date published: May 2, 2016
Status: Active

The Oysters of Chicopit: Status of the Oyster Population in Chicopit Bay before, during, and after the Construction of the Mile Point Project

Chicopit Bay, part of the Timucuan Ecological and Historic Preserve in Florida, is a small embayment at the intersection of San Pablo Creek (part of the Intercoastal Waterway) and the St. Johns River. Home to a number of small oyster beds, this area is now being dredged to help eliminate cross currents from the main shipping channel of the St. Johns. WARC researchers collect baseline...

Contacts: Michael Randall
Date published: May 2, 2016
Status: Active

Lionfish Distribution, Geographic Spread, Biology, and Ecology

Many aspects of lionfish biology are studied at the USGS Wetland and Aquatic Research Center.  As part of the U.S. Geological Survey Nonindigenous Aquatic Species database, the distribution of lionfish is tracked over time.

Date published: May 2, 2016
Status: Active

Impacts of Non-Native Fishes in the Florida Everglades

The Florida Everglades is the largest wetland ecosystem in the United States and supports a diverse flora and fauna, including many rare species.

Date published: April 25, 2016
Status: Active

Gulf of Mexico Land Loss Change Assessment: A Cooperative Study with the Bureau of Ocean and Energy Management

Eighty-five percent of the coastal wetland loss in the contiguous United States occurs in the Gulf of Mexico. Documenting and understanding the occurrence of this wetland loss will provide for effective planning, mitigation, and restoration activities.

Filter Total Items: 5,375
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Year Published: 2020

The incubation environment of nests deposited by a genetically distinct group of loggerhead sea turtles in Northwest Florida

The warming climate presents a challenge to conservation of all threatened and endangered species but particularly to those that exhibit temperature-dependent sex determination such as sea turtles. Changes in temperature may result in changes in the sex ratio of the population which can directly affect reproductive rate, abundance and population...

Lamont, Margaret; Johnson, Darren; Carthy, Raymond

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Year Published: 2020

Potentiometric surface and hydrologic conditions of the South Coast aquifer, Santa Isabel area, Puerto Rico, March–April, 2014

A potentiometric surface map of the South Coast aquifer near Santa Isabel, Puerto Rico, was created from data collected during a synoptic survey of groundwater levels at 55 wells from March 31 to April 17, 2014. Measured groundwater level values ranged from −22.8 to 185.4 feet above mean sea level. During the study period, cumulative rainfall of 0...

Ramos, Félix A.; Santiago, Alex A.
Ramos, F.A., and Santiago, A.A., 2020, Potentiometric surface and hydrologic conditions of the South Coast aquifer, Santa Isabel area, Puerto Rico, March–April, 2014: U.S. Geological Survey Scientific Investigations Map 3455, 4 p., 1 sheet, https://doi.org/10.3133/sim3455.

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Year Published: 2020

A graphical causal model for resolving species identity effects and biodiversity–ecosystem function correlations

Identifying and clearly communicating the drivers of ecosystem function is a crucially important goal for both basic and applied ecology. This has proven difficult because the putative causes (e.g., environment, species identity, biodiversity, and functional traits) are numerous and correlated. The problem is exacerbated by a lack of a formal...

Schoolmaster, Donald R.; Zirbel, Chad R; Cronin, James P.

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Year Published: 2020

Characterization of water-quality and bed-sediment conditions in Currituck Sound, North Carolina, prior to the Mid-Currituck Bridge construction, 2011–18

The North Carolina Turnpike Authority plans to improve transportation in the Currituck Sound area by constructing a two-lane bridge—the Mid-Currituck Bridge—across Currituck Sound from the mainland to the Outer Banks, North Carolina. The results of the final environmental impact statement for the project indicate potential water-quality and...

Harden, Stephen L.; Fitzgerald, Sharon A.; Wagner, Chad R.; Bristow, Emilia L.; Loftin, Keith A.; Rosen, Barry H.
Harden, S.L., Fitzgerald, S.A., Wagner, C.R., Bristow, E.L., Loftin, K.A., and Rosen, B.H., 2020, Characterization of water-quality and bed-sediment conditions in Currituck Sound, North Carolina, prior to the Mid-Currituck Bridge construction, 2011–18: U.S. Geological Survey Open-File Report 2020–1031, 67 p., https://doi.org/10.3133/ofr20201031. [Supersedes USGS Open-File Report 2015–1208.]

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Year Published: 2020

Bathymetric survey and sedimentation analysis of Lago Carite, Puerto Rico, January 2018

During January 23–30, 2018, the U.S. Geological Survey, in cooperation with the Puerto Rico Electric Power Authority, conducted a bathymetric survey of Lago Carite primarily to update estimates of the contemporary reservoir storage capacity and sedimentation rate. Previously designated transect lines were surveyed by using a depth sounder coupled...

Gomez-Fragoso, Julieta
Gómez-Fragoso, J.M., 2020, Bathymetric survey and sedimentation analysis of Lago Carite, Puerto Rico, January 2018: U.S. Geological Survey Scientific Investigations Map 3454, 1 sheet, https://doi.org/10.3133/sim3454.

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Year Published: 2020

Migration corridors and threats in the Gulf of Mexico and Florida Straits for loggerhead sea turtles

Along migration corridors, animals can face natural and anthropogenic threats that differ from those in breeding and non-breeding residence areas. Satellite telemetry can aid in describing the timing and location of these migrations. We use this tool with switching state-space modeling and line kernel density estimates to identify migration...

Iverson, Autumn; Benscoter, Allison; Fujisaki, Ikuko; Lamont, Margaret; Hart, Kristen

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Year Published: 2020

Sea turtle conservation: 10 ways you can help

Five species of sea turtle rely on Florida’s coastal and nearshore habitats for nesting during the summer months and foraging throughout the year (Figure 1). - Loggerhead turtles, named for their large, block-shaped heads with strong jaw muscles for crushing benthic invertebrates, are the most common sea turtle species on Florida’s nesting...

Swindall, Jessica E.; Ober, Holly K.; Lamont, Margaret; Carthy, Raymond R.

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Year Published: 2020

Effects of box culverts on stream habitat, channel morphology, and fish and macroinvertebrate communities at selected sites in South Carolina, 2016–18

Much attention has been placed on the role that under-roadway culverts may have in inhibiting upstream fish movement because of altered hydrology and unsuitable conditions for accessing or swimming through the culvert. Other culvert effects related to habitat alterations or disturbance to macroinvertebrate communities have received relatively...

Riley, Jeffrey W.; Beaulieu, Karen M.; Walsh, Stephen J.; Journey, Celeste A.
Riley, J.W., Beaulieu, K.M., Walsh, S.J., and Journey, C.A., 2020, Effects of box culverts on stream habitat, channel morphology, and fish and macroinvertebrate communities at selected sites in South Carolina, 2016–18: U.S. Geological Survey Scientific Investigations Report 2020–5021, 51 p., https://doi.org/10.3133/sir20205021.

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Year Published: 2020

Climate and local environment structure asynchrony and the stability of primary production in grasslands

Aim Climate variability threatens to destabilize production in many ecosystems. Asynchronous species dynamics may buffer against such variability when a decrease in performance by some species is offset by an increase in performance of others. However, high climatic variability can eliminate species through stochastic extinctions or cause similar...

Gilbert, B.; MacDougall, A.S.; Kadoya, T.; Akasaka, M.; Bennett, J. R.; Lind, E.M.; Flores-Moreno, H.; Firn, J.; Hautier, Y.; Borer, E.T.; Seabloom, E.W.; Adler, P.B.; Cleland, E.E.; Grace, James; Harpole, W.S.; Esch, E.H.; Moore, J.L.; Knops, J.; McCulley, R.; Mortensen, B.; Bakker, J.; Fay, P.A.

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Year Published: 2020

A multiscale approach to understanding migratory land bird habitat use of functional stopover habitat types and management efforts

It is hard to believe that many of the small “backyard birds” people see during spring and autumn can make migratory journeys that span thousands of kilometers. In fact, over two-thirds of all land birds (i.e., those not associated with aquatic habitats) and over half of the migratory species in North America move long distances to areas in Mexico...

Zenzal, Theodore J.

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Year Published: 2020

The ODD protocol for describing agent-based and other simulation models: A second update to improve clarity, replication, and structural realism

The Overview, Design concepts and Details (ODD) protocol for describing Individual- and Agent-Based Models (ABMs) is now widely accepted and used to document such models in journal articles. As a standardized document for providing a consistent, logical and readable account of the structure and dynamics of ABMs, some research groups also find it...

Grimm, Volker; Railsback, Steven F.; Vincenot, Christian; Berger, Uta; Gallagher, Cara; DeAngelis, Don; Edmonds, Bruce; Ge, Jiaqi; Giske, Jarl; Groeneveld, Jurgen; Johnston, Alice S.A.; Miles, Alexander; Nabe-Nielson, Jacob; Polhill, J. Gareth; Radchuk, Viktoriia; Rohwader, Marie-Sophie; Stillman, Richard A.; Theile, Jan; Ayllon, Daniel

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Year Published: 2020

Hurricane sedimentation in a subtropical salt marsh-mangrove community is unaffected by vegetation type

Hurricanes periodically deliver sediment to coastal wetlands, such as those in the Mississippi River Delta Complex (MRDC), slowing elevation loss and improving resilience to sea-level rise. However, the amount of hurricane sediment deposited and retained in a wetland may vary depending on the dominant vegetation. In the subtropical climate of the...

McKee, Karen L.; Mendelssohn, Irving A.; Hester, Mark W.

Filter Total Items: 498
April 20, 2011

Climate Connections: Visiting Students in North Carolina (Episode 1)

America has questions about climate change, and the USGS has real answers. In this episode of Climate Connections, USGS scientists answer questions gathered from middle and high school students in Mt. Airy, NC.

  • Do all scientists agree that climate change is occurring?
  • Could climate change impact fishing?
  • Will the climate change abruptly or
USGS
April 18, 2011

USGS Hydrologic Investigation of West Africa's Congo River (part 3)

USGS South Carolina Water Science Center Data Chief, John Shelton in a special hydrologic expedition down the Congo River, West Africa. Part three of the three part episode, reveals a hydrologic data set that changed the world record books.

Tangled web of prop roots from red mangrove trees, intermixed with black mangroves and white mangroves farther back in the photo
April 13, 2011

Mangrove forest, Shark River Slough, Everglades National Park

Tangled web of prop roots from red mangrove trees, intermixed with black mangroves and white mangroves farther back in the forest.  Mangrove forests cover much of the southwestern coastal region of Everglades National Park.  The red mangroves are the most salinity tolerant and grow with their prop roots in the water or within the range of high tide.

Rainbow Springs, Florida, USA
March 11, 2011

Spring water is usually clear and cool, which attracts swimmers.

Rainbow Springs, Florida, USA

A spring is a water resource formed when the side of a hill, a valley bottom or other excavation intersects a flowing body of groundwater at or below the local water table, below which the subsurface material is saturated with water. A spring is the result of an aquifer being filled to the point that the water overflows

...
USGS CoreCast
March 6, 2011

Groundwater Awareness Week is March 6-12

Groundwater is not a single vast pool of underground water; rather, it is contained within a variety of aquifer systems. Each of these aquifers has its own set of questions and challenges. From large drawdowns in the Great Plains aquifer to arsenic in some wells in New England, this episode of CoreCast highlights six different USGS groundwater studies all across the United

Photo of bleaching colony of symmetrical brain coral, Diploria strigosa
August 17, 2010

Bleaching colony of symmetrical brain coral, Diploria strigosa

Bleaching colony of symmetrical brain coral, Diploria strigosa, Florida Keys. When corals are stressed, the symbiosis between the coral animal and its photosynthetic algal symbionts (zooxanthellae) breaks down and the zooxanthellae are expelled from the coral tissue. The zooxanthellae’s photosynthetic pigments contribute much of the color we see in corals, so when

...
Photo of bleaching colony of lobed star coral, Montastraea annularis
August 17, 2010

Bleaching colony of lobed star coral, Montastraea annularis

Bleaching colony of lobed star coral, Montastraea annularis, Florida Keys. When corals are stressed, the symbiosis between the coral animal and its photosynthetic algal symbionts (zooxanthellae) breaks down and the zooxanthellae are expelled from the coral tissue. The zooxanthellae’s photosynthetic pigments contribute much of the color we see in corals, so when

...
Photo of bleaching colony of great star coral, Montastraea cavernosa
August 17, 2010

Bleaching colony of great star coral, Montastraea cavernosa

Bleaching colony of great star coral, Montastraea cavernosa, Florida Keys. When corals are stressed, the symbiosis between the coral animal and its photosynthetic algal symbionts (zooxanthellae) breaks down and the zooxanthellae are expelled from the coral tissue. The zooxanthellae’s photosynthetic pigments contribute much of the color we see in corals, so when

...
Photo of bleaching colony of great star coral, Montastraea cavernosa, with polyps extended, Florida Keys.
August 17, 2010

Bleaching colony of great star coral, Montastraea cavernosa

Bleaching colony of great star coral, Montastraea cavernosa, with polyps extended, Florida Keys. When corals are stressed, the symbiosis between the coral animal and its photosynthetic algal symbionts (zooxanthellae) breaks down and the zooxanthellae are expelled from the coral tissue. The zooxanthellae’s photosynthetic pigments contribute much of the color we see

...
bleaching colony of star coral
August 17, 2010

Bleaching colonies of mountainous star coral, Montastraea faveolata

Bleaching colonies of mountainous star coral, Montastraea faveolata, Florida Keys. When corals are stressed, the symbiosis between the coral animal and its photosynthetic algal symbionts (zooxanthellae) breaks down and the zooxanthellae are expelled from the coral tissue. The zooxanthellae’s photosynthetic pigments contribute much of the color we see in corals, so

...
Photo of bleaching colonies of mustard hill coral, Porites astreoides, Florida Keys.
August 17, 2010

Bleaching colonies of mustard hill coral, Porites astreoides

Bleaching colonies of mustard hill coral, Porites astreoides, both green and brown color morphs, Florida Keys. When corals are stressed, the symbiosis between the coral animal and its photosynthetic algal symbionts (zooxanthellae) breaks down and the zooxanthellae are expelled from the coral tissue. The zooxanthellae’s photosynthetic pigments contribute much of

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Filter Total Items: 399
USGS
June 1, 2006

As another potentially busy hurricane season approaches, U.S. Geological Survey (USGS) scientists are sharing data and photos with the public to stress the importance of evacuation and storm preparedness.

USGS
April 7, 2006

Despite recent rain, water levels in streams throughout the Mid-Atlantic and surrounding regions remain near record lows for this time of year, according to hydrologists at the U.S. Geological Survey (USGS).

USGS
September 20, 2005

In a cooperative research program, the USGS, NASA and the U.S. Army Corps of Engineers (USACE) are using airborne laser mapping systems to quantify coastal change along the entire coastline affected by Hurricane Katrina.

USGS science for a changing world logo
September 20, 2005

In a cooperative research program, the USGS, NASA and the U.S. Army Corps of Engineers (USACE) are using airborne laser mapping systems to quantify coastal change along the entire coastline affected by Hurricane Katrina (http://coastal.er.usgs.gov/hurricanes/katrina/).

USGS science for a changing world logo
September 14, 2005

U.S. Geological Survey scientists report that preliminary analysis of satellite data indicate Hurricane Katrina caused substantial marsh loss in St. Bernard and Plaquemines parishes.

USGS
September 6, 2005

The USGS is releasing today a 25-minute videotape of footage showing coastal impacts resulting from Hurricane Katrina along the coastline of the northern Gulf of Mexico.

USGS science for a changing world logo
September 6, 2005

The USGS is releasing today a 25-minute videotape of footage showing coastal impacts resulting from Hurricane Katrina along the coastline of the northern Gulf of Mexico.

USGS
September 2, 2005

 

The USGS has posted aerial photos from the northern Gulf of Mexico coastline showing before and after conditions in response to Hurricane Katrina. The photos show five photo pairs of the Chandeleur Islands, Louisiana, and three photo pairs of Dauphin Island, Alabama. A set of ‘quick response’ photos from Bay St. Louis to Biloxi, Mississippi are also posted.

USGS science for a changing world logo
September 2, 2005

 

The USGS has posted aerial photos from the northern Gulf of Mexico coastline showing before and after conditions in response to Hurricane Katrina. The photos show five photo pairs of the Chandeleur Islands, Louisiana, and three photo pairs of Dauphin Island, Alabama. A set of ‘quick response’ photos from Bay St. Louis to Biloxi, Mississippi are also posted.

USGS science for a changing world logo
September 2, 2005

"The past several days have seen remarkable devastation resulting from Hurricane Katrina. Our thoughts and prayers are with everyone who has been affected by this disaster," said USGS Acting Director Pat Leahy. "In the aftermath of Katrina, USGS research on hurricanes and natural hazards is no longer just a scientific endeavor – it is a matter of public safety."

USGS
August 29, 2005

Did you know that from your desk you can monitor the effect of Hurricane Katrina as it moves inland? 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 this storm.

USGS science for a changing world logo
August 29, 2005

Did you know that from your desk you can monitor the effect of Hurricane Katrina as it moves inland? 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 this storm.

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

Filter Total Items: 283