Regions L2 Landing Page Tabs
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.
Remote sensing helps USGS scientists detect and map surface oil in coastal environments.
Alabama is host to a variety of freshwater species, many of which are critically imperiled. USGS and partners focus conservation activities in high priority watersheds throughout the state.
Using Environmental DNA for Burmese Python Detection Probabilities and Range-Delimitation in Southern Florida
Current tools for detection of Burmese pythons in South Florida have resulted in low detection rates. Environmental DNA - eDNA - has shown to be effective at detecting these invasive snakes, and can help to determine range limits for the species, information that is critical for management and control efforts.
To better understand coastal response to sea-level rise, USGS is monitoring coastal wetland sediment elevations along Florida's east coast.
Contaminants Assessments in the Coral Reefs of the Virgin Islands National Park and Virgin Islands Coral Reef National Monument
Coral reefs around the world are exposed to a number of environmental contaminants. USGS researchers investigate the issue of contamination on the reefs around the U.S. Virgin Islands.
Fossil fuels like shale oil and gas and novel recovery methods are opening new lands for development in the Southeast. We support energy development with a scientific approach that considers the need for ecosystem conservation. Our science is used to assess impacts that the extraction of oil, gas, coal, gas hydrates, and other energy reserves has on water quality and the environment.
Prevalence Rates of Snake Fungal Disease and its Population-Level Impacts in a Snake Assemblage in Southwest Louisiana
In the last twenty years, an extraordinary number of fungal and fungal-like diseases have caused some of the most severe die-offs and extinctions ever observed in wild species.
Researchers from the Louisiana Cooperative Research Unit evaluated habitat suitability at White Lake, Louisiana, for the possible reintroduction of endangered whooping cranes. The information collected led to the 2011-2012 release of 40 cranes. Researchers are continuing to monitor the reintroduced cranes and more releases are planned.
On an island in the U.S. Virgin Islands, USGS scientists discover corals are seeking refuge from climate change in mangroves.
Mechanisms of Aquatic Species Invasions across the South Atlantic Landscape Conservation Cooperative (SALCC)
USGS scientists study the mechanisms of aquatic species invasions across the South Atlantic Landscape Conservation Cooperative (SALCC) with the help of the Nonindigenous Aquatic Species Database (NAS).
Ecology of and Control Strategies for Invasive Burmese Pythons (Python molurus bivitattus) in the Greater Everglades
Telemetry tracking of captured pythons reveals movement patterns of the invasive Burmese python in the Greater Everglades, information that managers can use to prioritize python control efforts.
USGS researchers tag and track endangered and threatened sea turtles to inform adaptive management strategies in marine protected areas.
Fire reinforces structure of pondcypress (Taxodium distichum var. imbricarium) domes in a wetland landscape
Fire periodically affects wetland forests, particularly in landscapes with extensive fire-prone uplands. Rare occurrence and difficulty of access have limited efforts to understand impacts of wildfires fires in wetlands. Following a 2009 wildfire, we measured tree mortality and structural changes in wetland forest patches. Centers of these...Watts, Adam C.; Kobziar, Leda N.; Snyder, James R.
Life at the hyperarid margin: novel bacterial diversity in arid soils of the Atacama Desert, Chile
Nearly half the earth's surface is occupied by dryland ecosystems, regions susceptible to reduced states of biological productivity caused by climate fluctuations. Of these regions, arid zones located at the interface between vegetated semiarid regions and biologically unproductive hyperarid zones are considered most vulnerable. The objective of...Neilson, Julia W.; Quade, Jay; Ortiz, Marianyoly; Nelson, William M.; Legatzki, Antje; Tian, Fei; LaComb, Michelle; Betancourt, Julio L.; Wing, Rod A.; Soderlund, Carol A.; Maier, Raina M.
Gulf Coast Ecosystem Restoration Task Force---Gulf of Mexico Ecosystem Science Assessment and Needs
The Gulf Coast Ecosystem Restoration Task Force (GCERTF) was established by Executive Order 13554 as a result of recommendations from “America’s Gulf Coast: A Long-term Recovery Plan after the Deepwater Horizon Oil Spill” by Secretary of the Navy Ray Mabus (Mabus Report). The GCERTF consists of members from 11 Federal agencies and representatives...Walker, Shelby; Dausman, Alyssa M.; Lavoie, Dawn L.
Vertebrate species introductions in the United States and its territories
At least 1,065 introduced vertebrate species have been introduced in the United States and its territories, including at least 86 mammalian, 127 avian, 179 reptilian/amphibian, and 673 fish species. Examples in each major taxonomic group include domestic cat, small Indian mongoose, red fox, goat, pig, rabbit, rats, house mouse, gray squirrel,...Witmer, Gary W.; Fuller, Pam L.
Structured decision making as a proactive approach to dealing with sea level rise in Florida
Sea level rise (SLR) projections along the coast of Florida present an enormous challenge for management and conservation over the long term. Decision makers need to recognize and adopt strategies to adapt to the potentially detrimental effects of SLR. Structured decision making (SDM) provides a rigorous framework for the management of natural...Martin, Julien; Fackler, Paul L.; Nichols, James D.; Lubow, Bruce C.; Eaton, Mitchell J.; Runge, Michael C.; Stith, Bradley M.; Langtimm, Catherine A.
Habitat diversity in the Northeastern Gulf of Mexico: Selected video clips from the Gulfstream Natural Gas Pipeline digital archive
This project combines underwater video with maps and descriptions to illustrate diverse seafloor habitats from Tampa Bay, Florida, to Mobile Bay, Alabama. A swath of seafloor was surveyed with underwater video to 100 meters (m) water depth in 1999 and 2000 as part of the Gulfstream Natural Gas System Survey. The U.S. Geological Survey (USGS)...Raabe, Ellen A.; D'Anjou, Robert; Pope, Domonique K.; Robbins, Lisa L.
Estimating occupancy dynamics in an anuran assemblage from Louisiana, USA
Effective monitoring programs are designed to track changes in the distribution, occurrence, and abundance of species. We developed an extension of Royle and Kéry's (2007) single species model to estimate simultaneously temporal changes in probabilities of detection, occupancy, colonization, extinction, and species turnover using data on...Walls, Susan C.; Waddle, J. Hardin; Dorazio, Robert M.
Field guide to the nonindigenous marine fishes of FloridaSchofield, Pamela J.; Morris, James A.; Akins, Lad
Characterization of Northern Gulf of Mexico Deepwater Hard Bottom Communities with Emphasis on Lophelia Coral - Lophelia Reef Megafaunal Community Structure, Biotopes, Genetics, Microbial Ecology, and Geology (2004–2006)
Allen, Brooks R.; Caruso, John H.; Grottoli, Andrea; Harden, William M.; Johnson, Robin L.; Kellogg, Christina A.; King, Tim L.; Luke, Kirsten E.; Miller, Jana M.; Morrison, Cheryl L.; Nizinski, Martha S.; Norem, April D.; Quaid, Andrew J.; Randall, Michael T.; Risk, Michael J.; Ross, Steve W.; Schill, William B.; Sulak, Kenneth J.; Williams, Branwin; Yeargin, George E.; Sulak, Kenneth J.; Randall, Michael T.; Luke, Kirsten E.; Norem, April D.; Miller, Jana M.
Emergence of functional responses from interactions of individuals
No abstract available.DeAngelis, Donald L.; Ju, Shu; Holland, J. Nathaniel
Assessment and control of an invasive aquaculture species: An update on Nile tilapia (Oreochromis niloticus) in coastal Mississippi after Hurricane Katrina
We provide information about the effects of Hurricane Katrina on populations of an invasive fish, the Nile tilapia (Oreochromis niloticus) in southern Mississippi. By resampling areas surveyed before the storm, we attempted to determine whether the species expanded its range by moving with storm-related floods. Additionally, we used rotenone to...Schofield, Pamela J.; Slack, W. Todd; Peterson, Mark S.; Gregoire, Denise R.
A deep reef in deep trouble
The well-documented degradation of shallower reefs which are often closer to land and more vulnerable to pollution, sewage and other human-related stressors has led to the suggestion that deeper, more remote offshore reefs could possibly serve as sources of coral and fish larvae to replenish the shallower reefs. Yet, the distribution, status, and...Menza, Charles; Kendall, M.; Rogers, C.; Miller, J.