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: 4,923
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Year Published: 2018

Quantifying relative importance: Computing standardized effects in models with binary outcomes

Scientists commonly ask questions about the relative importances of processes, and then turn to statistical models for answers. Standardized coefficients are typically used in such situations, with the goal being to compare effects on a common scale. Traditional approaches to obtaining standardized coefficients were developed with idealized...

Grace, James B.; Johnson, Darren; Lefcheck, Jonathan S.; Byrnes, Jarrett E.K.
Grace, J.B., Johnson, D.J., Lefcheck, J.S., and Byrnes, J.E.K., 2018, Quantifying relative importance: computing standardized effects in models with binary outcomes: Ecosphere, v. 9, no. 6, art. e02283, http://dx.doi.org/10.1002/ecs2.2283.

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Year Published: 2018

Coastal wetland adaptation to sea level rise: Quantifying potential for landward migration and coastal squeeze

Coastal wetland ecosystems are expected to migrate landwards in response to rising seas. However, due to differences in topography and coastal urbanization, estuaries vary in their ability to accommodate migration. Low‐lying urban areas can constrain migration and lead to wetland loss (i.e. coastal squeeze), especially where existing wetlands...

Borchert, Sinéad M.; Osland, Michael J.; Enwright, Nicholas M.; Griffith, Kereen
Borchert, S.M., Osland, M.J., Enwright, N.M., and Griffith, K.T., 2018, Coastal wetland adaptation to sea level rise: Quantifying potential for landward migration and coastal squeeze: Journal of Applied Ecology, Early View, https://doi.org/10.1111/1365-2664.13169.

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Year Published: 2018

Cumulative spring discharge and survey effort influence occupancy and detection of a threatened freshwater mussel, the Suwannee Moccasinshell

Freshwater mussels (Unionidae) are among the most imperiled groups of organisms in the world, and the lack of information regarding species distributions, life-history characteristics, and ecological and biological requirements may limit the protection of remaining mussel populations. We examined the influence of hydrologic factors on the...

Holcomb, Jordan M.; Shea, Colin P.; Johnson, Nathan A.
Holcomb, J.M., Shea, C.P., and Johnson, N.A., 2018, Cumulative spring discharge and survey effort influence occupancy and detection of a threatened freshwater mussel, the Suwannee moccasinshell: Journal of Fish and Wildlife Management, v. 9, no. 1, p. 95-105, https://doi.org/10.3996/052017-JFWM-042.

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Year Published: 2018

President elect's message

The first morning home the day after I became president of SWS at the annual meeting in Denver, I note the wilting of my garden and the grumpiness of my cats as the dawn of my new reality. The extra hours that I will spend as president of SWS will manifest itself as more cat and garden unhappiness as travel and responsibilities grow. The cats...

Middleton, Beth A.
Middleton, B.A., 2018, SWS President’s Address: Wetland Science and Practice, June 2018, http://www.sws.org/Publications/wetland-science-and-practice.html.

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Year Published: 2018

Environmental controls on the geochemistry of Globorotalia truncatulinoides in the Gulf of Mexico: Implications for paleoceanographic reconstructions

Modern observations of planktic foraminifera from sediment trap studies help to constrain the regional ecology of paleoceanographically valuable species. Results from a weekly-resolved sediment trap time series (2008–2014) in the northern Gulf of Mexico demonstrate that 92% of Globorotalia truncatulinoides ...

Reynolds, Caitlin E.; Richey, Julie N.; Fehrenbacher, Jennifer S.; Rosenheim, Brad E.; Spero, Howard J.
Reynolds, C.E., Richey, J.N., Fehrenbacher, J.S., Rosenheim, B.E., and Spero, H.J., 2018, Environmental controls on the geochemistry of Globorotalia truncatulinoides in the Gulf of Mexico: Implications for paleoceanographic reconstructions, Marine Micropaleontology, v.142, pp. 92-104, ISSN 0377-8398, https://doi.org/10.1016/j.marmicro.2018.05.006.

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Year Published: 2018

Ecological resilience indicators for mangrove ecosystems

Mangrove ecosystems are coastal wetland ecosystems dominated by mangrove species that are typically found in the intertidal zone, characterized by frequently flooded saline soil conditions. The majority of the approximately 500,000 acres of mangrove ecosystem in the United States occurs in the NGoM, and almost all of that is in Florida, with over...

Day, Richard H.; Allen, Scott T.; Brenner, Jorge; Goodin, Kathleen; Faber-Langendoen, Don; Ames, Katherine Wirt
Day, R.H., Allen, S.T., Brenner, J., Goodin, K.L., Faber-Langdoen, D., and Ames, K.W., 2018, Ecological resilience indicators for mangrove ecosystems, in Goodin, K.L., ed., Ecological Resilience Indicators for Five Northern Gulf of Mexico Ecosystems, Chapter 3, p. 91-150: NatureServe, Arlington, VA, http://www.natureserve.org/sites/default/files/projects/files/chapter_3_-_mangrove_indicators.pdf.

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Year Published: 2018

Ecological resilience indicators for salt marsh ecosystems

Salt marshes are coastal ecosystems within the intertidal zone, characterized by hypoxic, saline, soil conditions and low biodiversity. Low diversity arises from frequent disturbance and stressful conditions (i.e., high salinity and hypoxia), where vegetative reproduction and low competition result in mostly monotypic stands, with some differences...

Allen, Scott T.; Stagg, Camille L.; Brenner, Jorge; Goodin, Kathleen L.; Faber-Langendoen, Don; Gabler, Christopher A.; Ames, Katherine Wirt
Allen, S.T., Stagg, C.L., Brenner, J., Goodin, K.L., Faber-Langendoen, D., Gabler, C.A., and Ames, K.W., 2018, Ecological resilience indicators for salt marsh ecosystems, in Goodin, K.L., ed., Ecological Resilience Indicators for Five Northern Gulf of Mexico Ecosystems, Chapter 2, p. 37-89: NatureServe, Arlington, VA, http://www.natureserve.org/sites/default/files/projects/files/chapter_2_-_salt_marsh_indicators.pdf.

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Year Published: 2018

Establishing a baseline: the amphibians of Lower Suwannee National Wildlife Refuge, Dixie and Levy counties, Florida

From 2002-2006, we used a variety of sampling techniques to survey the amphibians and water chemistry of Lower Suwannee National Wildlife Refuge in Florida’s Big Bend region. We recorded 23 amphibian species, 19 frogs and 4 salamanders. Species richness was lower than in other areas of the coastal Big Bend region to the north, perhaps due to a...

Dodd, C. Kenneth; Barichivich, William J.; Johnson, Steve A.; Gunzburger Aresco, Margaret; Staiger, Jennifer S.
Dodd, C.K., Jr., Barichivich, W.J., Johnson, S.A., Aresco, M.G., and Staiger, J.S., 2018, Establishing a baseline: the amphibians of Lower Suwannee National Wildlife Refuge, Dixie and Levy counties, Florida: Florida Scientist, v. 80, no. 4, p. 133-144. https://fas.fit.edu/media/site-specific/fasfitedu/flsc-80-04-cov.pdf.

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Year Published: 2018

Lower lethal temperatures for nonnative freshwater fishes in Everglades National Park, Florida

Temperature is an important factor that shapes biogeography and species composition. In southern Florida, the tolerance of nonnative freshwater fishes to low temperatures is a critical factor in delineating their geographic spread. In this study, we provide empirical information on experimentally derived low-temperature tolerance limits of Banded...

Schofield, Pamela J.; Kline, Jeffrey L.

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Year Published: 2018

Partial migration of the nurse shark, Ginglymostoma cirratum (Bonnaterre), from the Dry Tortugas Islands

Nurse sharks have not previously been known to migrate. Nurse sharks of the Dry Tortugas (DRTO) mating population have a highly predictable periodic residency cycle, returning to the Dry Tortugas Courtship and Mating Ground (DTCMG) annually (males) or bi- to triennially (females) during the June/July mating season. For 23 years we have followed...

Pratt, Harold L.; Pratt, Theo C.; Morley, Danielle; Lowerre-Barbieri, Susan K.; Collins, Angela; Carrier, Jeffrey C.; Hart, Kristen M.; Whitney, N.M.
Pratt, H.L., Jr., Pratt, T.C., Morley, D., Lowerre-Barbieri, S., Collins, A., Carrier, J.C., Hart, K.M., and Whitney, N.M., 2018, Partial migration of the nurse shark, Ginglymostoma cirratum (Bonnaterre), from the Dry Tortugas Islands: Environmental Biology of Fishes, v. 101, no. 4., p. 515-530, https://doi.org/10.1007/s10641-017-0711-1.

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Year Published: 2018

A framework for modeling scenario-based barrier island storm impacts

Methods for investigating the vulnerability of existing or proposed coastal features to storm impacts often rely on simplified parametric models or one-dimensional process-based modeling studies that focus on changes to a profile across a dune or barrier island. These simple studies tend to neglect the impacts to curvilinear or alongshore varying...

Mickey, Rangley C.; Long, Joseph W.; Dalyander, P. Soupy; Plant, Nathaniel G.; Thompson, David M.
Rangley Mickey, Joseph Long, P. Soupy Dalyander, Nathaniel Plant, David Thompson, A framework for modeling scenario-based barrier island storm impacts, Coastal Engineering, Volume 138, August 2018, Pages 98-112, ISSN 0378-3839, https://doi.org/10.1016/j.coastaleng.2018.04.012.

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Year Published: 2018

Spatial distribution and ecological risk assessment of heavy metals in coastal surface sediments in the Hebei Province offshore area, Bohai Sea, China

Seven hundred and nine surface sediment samples, along with deeper sediment samples, were collected from Hebei Province along the coastal section of the Bohai Sea, China, and analyzed for grain size, concentrations of organic carbon (Corg) and heavy metals (Cu, Pb, Zn, Cr, Cd, As, and Hg). Results indicated that the average concentrations in the...

Ding, Xigui; Ye, Siyuan; Yuan, Hongming; Krauss, Ken W.
Ding, X., Ye, S., Yuan, H., and Krauss, K.W., 2018, Spatial distribution and ecological risk assessment of heavy metals in coastal surface sediments in the Hebei Province offshore area, Bohai Sea, China: Marine Pollution Bulletin, v. 131, Part A, p. 655-661, https://doi.org/10.1016/j.marpolbul.2018.04.060.

Filter Total Items: 503
Image: Northwest Florida is inundated by floodwaters
April 15, 2009

Northwest Florida is inundated by floodwaters

The rural landscape in northwest Florida is inundated by floodwaters of the Alapaha River.

Image: Florida floods with extreme highwater
April 15, 2009

Florida floods with extreme highwater

The dry landscape of northwest Florida floods with extreme highwater from the Withlacoochee River.

Image: A Diversity of Corals Growing in the Mangroves Within Virgin Islands Coral Reef National Monument
March 21, 2009

A Diversity of Corals Growing in the Mangroves Within Virgin Islands Coral Reef National Monument

This photo shows a mangrove ecosystem that may be unique in the Caribbean in terms of the abundance and diversity of corals.

USGS scientists are collaborating with scientists at the University of the Virgin Islands to learn more about why these corals are thriving while coral cover on USVI reefs has declined by 60% from bleaching and disease.  With climate change,

...
Image: A Diversity of Corals Growing in the Mangroves Within Virgin Islands Coral Reef National Monument
March 21, 2009

A Diversity of Corals Growing in the Mangroves Within Virgin Islands Coral Reef National Monument

This photo shows a mangrove ecosystem that may be unique in the Caribbean in terms of the abundance and diversity of corals.

USGS scientists are collaborating with scientists at the University of the Virgin Islands to learn more about why these corals are thriving while coral cover on USVI reefs has declined by 60% from bleaching and disease.  With climate change,

...
Image: Mycetophyllia sp. Coral Abundance in the Virgin Islands
March 8, 2009

Mycetophyllia sp. Coral Abundance in the Virgin Islands

This coral (Mycetophyllia sp.) is not abundant in coral reefs of the Virgin Islands. It most commonly grows in water deeper than 40 ft., and it is surprising to find it growing in the shade of the mangroves in 3 ft of water.

Image: Red Mangroves in Hurricane Hole, US Virgin Islands
January 24, 2009

Red Mangroves in Hurricane Hole, US Virgin Islands

In Hurricane Hole, Red Mangrove trees extend from land into the water, anchoring the trees along the shoreline and creating a rich marine ecosystem.

Image: A Queen Angelfish Swims in Front of Coral Colonies of Several Species Growing in Mangroves Within Virgin Islands Coral Reef National Monument
December 31, 2008

A Queen Angelfish Swims in Front of Coral Colonies of Several Species Growing in Mangroves Within Virgin Islands Coral Reef National Monument

This photo shows a mangrove ecosystem that may be unique in the Caribbean in terms of the abundance and diversity of corals.

USGS scientists are collaborating with scientists at the University of the Virgin Islands to learn more about why these corals are thriving while coral cover on USVI reefs has declined by 60% from bleaching and disease.  With climate change,

...
Image: Alabama Sturgeon
September 11, 2008

Alabama Sturgeon

An endangered Alabama sturgeon from the Mobile River.

Image: Alabama Sturgeon
September 11, 2008

Alabama Sturgeon

An endangered Alabama sturgeon from the Mobile River.

Filter Total Items: 372
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."

USGS
September 12, 1997

Federal and local biologists captured and tagged three manatees in early August near Mayaguez, Puerto Rico, as part of efforts to better protect West Indian manatees inhabiting this Caribbean island.

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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