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We conduct impartial, multi- and interdisciplinary research and monitoring on a large range of natural-resource issues that impact the quality of life of citizens and landscapes of the Southeastern United States and the Caribbean region.

Filter Total Items: 234
West Indian manatees
October 21, 2016

Population models developed by USGS are the primary decision-support tools used for status assessments, and rely on estimates of adult survival and reproduction rates from mark-recapture studies.

Florida Manatee with a tracking devise attached
October 16, 2016

Long-term monitoring data in the Manatee Individual Photo-identification System (MIPS), developed and coordinated by WARC-Sirenia Project in collaboration with Florida’s Fish and Wildlife Research Institute and Mote Marine Laboratory, are the basis for modeling manatee demography rates.

West Indian Manatee Population Genetics
October 14, 2016

Nuclear microsatellite markers have been developed and implemented on ~2,000 West Indian manatees. These markers provide individual genetic fingerprints for mark-recapture studies, population structure information for the conservation of unique or isolated populations, and pedigree and relatedness information for addressing inbreeding and breeding structure patterns.

Research diver and manatees - WARC
October 10, 2016

Since 1978, USGS scientists have photo-documented manatees in the Southeast United States. Now, more than 3,000 manatees can be found in the MIPS database.

Florida manatee population uses warm-water discharges from power plants during winter
October 5, 2016

Manatees are tropical to subtropical in distribution and, with few exceptions, Florida is the northern limit of their natural winter range.  The availability of warm-water habitat during winter is critical for the future persistence of the population in Florida.

Photo identification of manatees
October 3, 2016

USGS works with partners to assess manatee distribution and habitat use throughout the Northern Gulf of Mexico.

Louisiana
September 29, 2016

Groundwater resources in northwestern Louisiana may be needed for development of natural gas production from the Haynesville Shale. Use of groundwater for hydro-fracturing of the shale may lower water levels and alter groundwater flow directions in the Carrizo-Wilcox aquifer and other local aquifers. Regional maps of aquifers in northwestern Louisiana are unavailable. The LaWSC, in cooperation...

Freshwater withdrawals and population in Alabama, 1960-2005
September 28, 2016

Since 1950 when the U.S. Geological Survey (USGS) first conducted water-use compilations, important changes in water use have occurred in Alabama. The early part of the history (1950 to 1980) showed a steady increase in water use. During this time, the expectation was that, as the population increased, so would water use. Contrary to this expectation, reported water withdrawals declined in...

Hurricane Potential in the United States and Puerto Rico
September 26, 2016

Hurricanes bring destructive winds, storm surge, torrential rain, flooding, and tornadoes. A single storm can wreak havoc on coastal and inland communities and on natural areas over thousands of square miles. In 2005, Hurricanes Katrina, Rita, and Wilma demonstrated the devastation that hurricanes can inflict and the importance of hurricane hazards research and preparedness.

More than...

Lower Tennessee River (LTEN) Basin Study
September 26, 2016

Welcome....the Lower Tennessee River Basin in Tennessee, Alabama, Georgia, Kentucky, and Mississippi is one of the 59 study units that are part of the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program.The long-term goals of this program are to describe the status and trends in the quality of a large, representative part of the Nation's surface- and ground-water...

Mobile River Basin Study
September 22, 2016

The Mobile River Basin in Alabama, Georgia, Mississippi, and Tennessee is one of the 59 study units that are part of the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program. The long-term goals of this program are to describe the status and trends in the quality of a large, representative part of the Nation's surface- and ground-water resources, and to provide a sound,...

Metro Nashville Flood Monitoring Project
September 19, 2016

Metro Nashville Flood Monitoring Project-This project monitors the Cumberland River and it's tributaries around the Nashville Metro Area. 

Filter Total Items: 180
Year Published: 2016

Baseline aquatic contamination and endocrine status in a resident fish of Biscayne National Park

This is a collection of data on the contamination of water, fish, and sediments in Biscayne National Park and in canals that discharge into the national park. The water data are estimations of their concentrations in water based on sampling with passive water samplers (semi-permeable membrane devices and polar organic chemical integrative samplers...

Bargar, Timothy A.; Whelan, Kevin; Alvarez, David A.; Echols, Kathy R.; Peterman, Paul H.
Bargar, T.A., Whelan, K.R.T., Alvarez, D., Echols, K., and Petermand, P.H., 2016, Baseline aquatic contamination and endocrine status in a resident fish of Biscayne National Park: U.S. Geological Survey data release, http://doi.org/10.5066/F7N014PH.

Year Published: 2016

Cape Lookout, North Carolina, 2012 National Wetlands Inventory Habitat Classification

In the face of sea level rise and as climate change conditions increase the frequency and intensity of tropical storms along the north-Atlantic Coast, coastal areas will become increasingly vulnerable to storm damage, and the decline of already-threatened species could be exacerbated. Predictions about response of coastal birds to effects of...

Spear, Kathryn A.; Jones, William R.
Spear, K.A., and Jones, W.R., 2016, Cape Lookout, North Carolina, 2012 National Wetlands Inventory Habitat Classification: U.S. Geological Survey Data Release, http://dx.doi.org/10.5066/F7MP51F7.

Year Published: 2016

Response of imperiled Okaloosa darters to stream restoration

The Okaloosa Darter Etheostoma okaloosae is a small percid endemic to six stream drainages in northwestern Florida. The U.S. Fish and Wildlife Service listed Okaloosa Darters as endangered in 1973 and downlisted them to threatened in 2011 because of habitat improvements and increasing abundance across much of their geographic range. Delisting is...

Reeves, David B.; Tate, William B.; Jelks, Howard; Jordan, Frank
Reeves, D.B., Tate, W.B., Jelks, H.L., and Jordan, F., 2016, Response of imperiled Okaloosa darters to stream restoration: North American Journal of Fisheries Management, v. 36, no. 6, p. 1375-1385, http://dx.doi.org/10.1080/02755947.2016.1227402.

Year Published: 2016

Large reptiles and cold temperatures: Do extreme cold spells set distributional limits for tropical reptiles in Florida?

Distributional limits of many tropical species in Florida are ultimately determined by tolerance to low temperature. An unprecedented cold spell during 2–11 January 2010, in South Florida provided an opportunity to compare the responses of tropical American crocodiles with warm-temperate American alligators and to compare the responses of...

Mazzotti, Frank J.; Cherkiss, Michael S.; Parry, Mark; Beauchamp, Jeff; Rochford, Mike; Smith, Brian J.; Hart, Kristen M.; Brandt, Laura A.
Mazzotti, F.J., Cherkiss, M.S., Parry, M., Beauchamp, J., Rochford, M., Smith, B., Hart, K., and Brandt, L.A., 2016, Large reptiles and cold temperatures: Do extreme cold spells set distributional limits for tropical reptiles in Florida?: Ecosphere, v. 7, no. 8, art. e01439, http://dx.doi.org/10.1002/ecs2.1439.

Year Published: 2016

Biomarkers reveal sea turtles remained in oiled areas following the Deepwater Horizon oil spill

Assessments of large-scale disasters, such as the Deepwater Horizon oil spill, are problematic because while measurements of post-disturbance conditions are common, measurements of pre-disturbance baselines are only rarely available. Without adequate observations of pre-disaster organismal and environmental conditions, it is impossible to assess...

Vander Zanden, Hannah B.; Bolten, Alan B.; Tucker, Anton D.; Hart, Kristen M.; Lamont, Margaret M.; Fujisaki, Ikuko; Reich, Kimberly J.; Addison, David S.; Mansfield, Katherine L.; Phillips, Katrina F.; Pajuelo, Mariela; Bjorndal, Karen A.
Vander Zanden, H.B., Bolten, A.B., Tucker, A.D., Hart, K.M., Lamont, M.M., Fujisaki, I., Reich, K.J., Addison, D.S., Mansfield, K.L., Phillips, K.F., Pajuelo, M., and Bjorndal, K.A., 2016, Biomarkers reveal sea turtles remained in oiled areas following the Deepwater Horizon oil spill: Ecological Applications, v. 26, no. 7, p. 2145-2155, http://dx.doi.org/10.1002/eap.1366.

Year Published: 2016

Climatic controls on the global distribution, abundance, and species richness of mangrove forests

MethodsStudy area: Our initial study area included the entire globe. We began with a seamless grid of cells with a resolution of 0.5 degrees (i.e., ~50 km at the equator). Next, we created polylines representing coastlines using SRTM (Shuttle Radar Topographic Mission) v4.1 global digital elevation model data at a resolution of 250 m (Reuter et al...

Osland, Michael J.; Feher, Laura C.; Griffith, Kereen
Osland, M.J., Feher, L., and Griffith, K.T., 2016, Climatic controls on the global distribution, abundance, and species richness of mangrove forests: U.S. Geological Survey Data Release, http://dx.doi.org/10.5066/F78C9TDM.

Year Published: 2016

Considerations for building climate-based species distribution models

Climate plays an important role in the distribution of species. A given species may adjust to new conditions in-place, move to new areas with suitable climates, or go extinct. Scientists and conservation practitioners use mathematical models to predict the effects of future climate change on wildlife and plan for a biodiverse future. This 8-page...

Bucklin, David N.; Basille, Mathieu; Romanach, Stephanie; Brandt, Laura A.; Mazzotti, Frank J.; Watling, James I.
Bucklin, D.N., Basille, M., Romanach, S.S., Brandt, L.A., Mazzotti, F.J., and Watling, J.I., 2016, Considerations for building climate-based species distribution models: U.S. Department of Agriculture, University of Florida/IFAS Extension Service, Publication WEC375, 8 pp., http://edis.ifas.ufl.edu/UW420.

Year Published: 2016

Hurricane Sandy 2013 National Wetlands Inventory Habitat Classification (habitat analysis of coastal federal lands located within high impact zones of Hurricane Sandy, October 2012)

Hurricane Sandy directly hit the Atlantic shoreline of New Jersey during several astronomical high tide cycles in late October, 2012. The eastern seaboard areas are subject to sea level rise and increased severity and frequency of storm events, prompting habitat and land use planning changes. Wetland Aquatic Research Center (WARC) has conducted...

Jones, William R.
Jones, W.R., 2016, Hurricane Sandy 2013 National Wetlands Inventory Habitat Classification (Habitat Analysis of Coastal Federal Lands located within High Impact Zones of Hurricane Sandy, October 2012): U.S. Geological Survey data release, http://dx.doi.org/10.5066/F75Q4T70.

Year Published: 2016

Post-release monitoring of Antillean manatees: an assessment of the Brazilian rehabilitation and release programme

Mammalian reintroduction programmes frequently aim to reconnect isolated sub-populations and restore population viability. However, these long-term objectives are rarely evaluated due to the inadequacy of post-release monitoring. Here, we report the results of a unique long term telemetry-based monitoring programme for rehabilitated Antillean...

Normande, Iran C.; Malhado, Ana C. M.; Reid, James P.; Viana Junior, P.C.; Savaget, P. V. S.; Correia, R. A.; Luna, F. O.; R. J. Ladle
Normande, I.C., Malhado, A.C.M., Reid, J., Viana Junior, P.C., Savaget, P.V.S., Correia, R.A., Luna, F.O., and Ladle, R.J., 2016, Post-release monitoring of Antillean manatees: an assessment of the Brazilian rehabilitation and release programme: Animal Conservation, v. 19, no. 3, p. 235-246, http://dx.doi.org/10.1111/acv.12236.

Year Published: 2016

Learning and adaptation in waterfowl conservation: By chance or by design?

The most recent revision of the North American Waterfowl Management Plan seeks to increase the adaptive capacity of the management enterprise to cope with accelerating changes in climate, land-use patterns, agency priorities, and the waterfowl and wetlands constituency. Institutional and cultural changes of the magnitude envisioned are necessarily...

Johnson, Fred A.; Case, David J.; Humburg, Dale H.
Johnson, F.A., Case, D.J., and Humburg, D.D., 2016, Learning and adaptation in waterfowl conservation: by chance or by design?: Wildlife Society Bulletin, Early View, http://dx.doi.org/10.1002/wsb.682.

Year Published: 2016

Greenhouse gas emissions from a created brackish marsh in eastern North Carolina

Tidal marsh creation helps remediate global warming because tidal wetlands are especially proficient at sequestering carbon (C) in soils. However, greenhouse gas (GHG) losses can offset the climatic benefits gained from C storage depending on how these tidal marshes are constructed and managed. This study attempts to determine the GHG emissions...

Shiau, Yo-Jin; Burchell, Michael R.; Krauss, Ken W.; Birgand, François; Broome, Stephen W.
Shiau, Y.-J., Burchell, M.R., Krauss, K.W., Birgand, F., and Broome, S.W., 2016, Greenhouse gas emissions from a created brackish marsh in eastern North Carolina: Wetlands, Online First, 16 p., http://dx.doi.org/10.1007/s13157-016-0815-y.

Year Published: 2016

Regulation of the hunting season as a tool for adaptive harvest management — First results for pink-footed geese Anser brachyrhynchus

Adjustment of hunting season length is often used to regulate harvest of waterbirds but the effects are disputed. We describe the first results of season length extension on the harvest of the pink-footed goose, which has been selected as the first test case of adaptive harvest management of waterbirds in Europe. In Denmark, the season (previously...

Madsen, Jesper; Clausen, Kevin; Christensen, Thomas K.; Johnson, Fred A.

Filter Total Items: 80
Strong River at D'Lo Mississippi
2015 (approx.)
This image was taken at the Strong River at D'Lo, Mississippi by Shane Stocks who is a Hydrologic Technician out of the Jackson, MS office. Shane used an infared camera to take this long exposure shot of the river.
Monarchs
2015 (approx.)
The Eastern, migratory population of monarch butterflies has declined by about 80 percent over the last decade.
U.S. Life-Saving Station in Portsmouth Historic Village, Cape Lookout National Seashore
2015 (approx.)
A U.S. Life-Saving Station in Portsmouth Historic Village, Cape Lookout National Seashore. The station was build in 1894 to rescue ship-wrecked mariners. This is one of many cultural resources at Cape Lookout National Seashore that may be threatened by climate change. Erin Seekamp, a researcher working with the DOI Southeast Climate Science Center (managed by USGS), is developing a method to...
Hurricane Joaquin seen from space
October 1, 2015
This photograph of Hurricane Joaquin was taken by NOAA's GOES West satellite on 10/1/2015.
The 1859 Cape Lookout Lighthouse and keeper's quarters
2015 (approx.)
The 1859 Cape Lookout Lighthouse and keeper's quarters, Cape Lookout National Seashore. This is one of many cultural resources at Cape Lookout National Seashore that may be threatened by climate change. Erin Seekamp, a researcher working with the DOI Southeast Climate Science Center (managed by USGS), is developing a method to identify which of the Park's cultural resources are most in need of...
The 1907 Keeper's Quarters, Cape Lookout National Seashore
2015 (approx.)
The 1907 Keeper's Quarter's, Cape Lookout National Seashore. This house was originally located by the lighthouse, but was moved in 1958 when it was no longer needed and was used as a private residence. This is one of many cultural resources at Cape Lookout National Seashore that may be threatened by climate change. Erin Seekamp, a researcher working with the DOI Southeast Climate Science Center (...
Distant view of sandy yellow beach stretching from bottom left to upper right of photo.
September 1, 2015
Time-averaged image, or “timex,” created by averaging the intensity of light recorded at each spot, or “pixel,” during a video taken at Duck, North Carolina, on September 1, 2015. Blurred white zones show where waves are breaking. Light band paralleling the shore marks an offshore sandbar. Dark bands extending away from the beach indicate rip channels. Researchers are using these and other video...
Michelle Collier of the USGS holding a black and white Tegu lizard.
2014 (approx.)
Invasive Species biological science technician Michelle Collier holds an invasive black and white Tegu lizard.
Red bubblegum coral
2013 (approx.)
Red bubblegum coral ( Paragorgia ) and several colonies of Primnoa occupy a boulder in close proximity to an anemone and sea star, at approximately 440 meters depth in Norfolk Canyon. Image courtesy of Deepwater Canyons 2013 – Pathways to the Abyss, NOAA-OER/BOEM/USGS
Coastal wetlands near Port Fourchon, Louisiana, in the northern Gulf of Mexico
2013 (approx.)
To understand how changes in rainfall and temperature might affect coastal wetlands in the northern Gulf of Mexico, USGS researchers conducted field studies at 10 estuaries in five states (Texas, Louisiana, Mississippi, Alabama, and Florida). The fieldwork took place in a variety of coastal wetland types, including mangroves, marshes, and salt flats.
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USGS logo
March 25, 2015

The U.S. Geological Survey’s Southeast Ecological Science Center in Gainesville and the National Wetlands Research Center in Lafayette, Louisiana will merge under the same leadership effective October 1, 2015.

USGS logo
March 12, 2015

Vital coastal storm-tide information needed to help guide storm response efforts following major storms affecting North Carolina will be more accessible than ever due to a new monitoring network the U.S. Geological Survey is currently building.

USGS logo
February 24, 2015

The first section of a seepage barrier designed to prevent catastrophic failure of the 143-mile Herbert Hoover Dike around Lake Okeechobee, Florida may have unintentionally caused changes in the salinity of portions of the shallow aquifer near the lake, according to a new U.S. Geological Survey report.

USGS logo
December 18, 2014

Secretary of the Interior Sally Jewell announced today that Interior’s Southeast Climate Science Center is awarding nearly $150,000 to its host university and other partners for research to guide managers of parks, refuges and other cultural and natural resources in planning how to help species and ecosystems adapt to climate change.

Image: Louisiana Black Bear and Cubs
November 19, 2014

The bear species nicknamed “teddy” more than a century ago that inspired the iconic stuffed toy still popular today will likely survive at least another century, according to a new U.S. Geological Survey study. 

USGS logo
November 12, 2014

Groundwater contamination that was first detected in Chesterfield County in the early 2000s has been linked to historical agricultural land use, according to a recent U.S. Geological Survey study.

Image: Bent Sea Rod Bleaching
September 9, 2014

Late-summer water temperatures near the Florida Keys were warmer by nearly 2 degrees Fahrenheit in the last several decades compared to a century earlier, according to a new study by the U.S. Geological Survey.

USGS logo
August 6, 2014

June and July rainfall deficits continue to point toward abnormally dry to moderate drought conditions in the Commonwealth of Puerto Rico, according to the U.S. Geological Survey.

USGS logo
August 5, 2014

Vital coastal storm-tide information needed to help guide storm response efforts following major storms affecting New Jersey will be more accessible than ever due to a new monitoring network the U.S. Geological Survey is currently building. 

Image Placeholder
July 28, 2014

Urban areas in the Southeastern United States will double in size by 2060 unless there are significant changes to land development, according to a new study by the Department of Interior’s Southeast Climate Science Center and North Carolina State University.

Burmese Python (Python molurus bivittatu
March 19, 2014

Invasive Burmese pythons in South Florida are able to find their way home even when moved far away from their capture locations, a finding that has implications for the spread of the species.

An invasive Burmese python in the Everglades.
March 19, 2014

Invasive Burmese pythons in South Florida are able to find their way home even when moved far away from their capture locations, a finding that has implications for the spread of the species.