Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 9967
U.S. Geological Survey invasive species research—Improving detection, awareness, decision support, and control
More than 6,500 nonindigenous species are now established in the United States, posing risks to human and wildlife health, native plants and animals, and our valued ecosystems. The annual environmental, economic, and health-related costs of invasive species are substantial. Invasive species can drive native species onto the endangered species list, resulting in associated regulatory costs; exacerb
Authors
Cindy Kolar Tam, Wesley M. Daniel, Earl Campbell, James J. English, Suzanna C. Soileau
Shoreface and Holocene sediment thickness offshore of Rockaway Peninsula, New York
During September and October 2019, the U.S. Geological Survey mapped the shoreface and inner continental shelf offshore of the Rockaway Peninsula in New York using high-resolution chirp seismic reflection and single-beam bathymetry geophysical techniques. The results from this study are important for assessing the Quaternary evolution of the Rockaway Peninsula and determining coastal sediment avai
Authors
Emily A. Wei, Jennifer L. Miselis, Arnell S. Forde
Environmental DNA surveys of Burmese pythons in the Greater Everglades Ecosystem
Improving the probability of detecting invasive giant snakes is vital for the management of emerging or established populations. Burmese pythons occupy thousands of square kilometers of mostly inaccessible habitats in Florida. Environmental DNA (eDNA) methods have been shown to be time and cost effective in a number of systems and may be preferable to traditional detection methods for constrictor
Authors
Caitlin E. Beaver, Gaia Meigs-Friend, Margaret E. Hunter
Diet composition of the African manatee: Spatial and temporal variation within the Sanaga River Watershed, Cameroon
The present study aimed to investigate the diet of African manatees in Cameroon to better inform conservation decisions within protected areas. A large knowledge gap on diet and seasonal changes in forage availability limits the ability to develop informed local management plans for the African manatee in much of its range. This research took place in the Sanaga River Watershed, which includes two
Authors
Aristide Takoukam Kamla, Dylan G. E. Gomes, Cathy Beck, Lucy W. Keith-Diagne, Margaret Hunter, Ruth Francis-Floyd, Robert K. Bonde
Natural inactivation of MS2, poliovirus type 1 and Cryptosporidium parvum in an anaerobic and reduced aquifer
AimsThe study of microbial inactivation rates in aquifer systems has most often been determined in aerobic and oxidized systems. This study examined the inactivation (i.e. loss of infectivity) of MS2, poliovirus type 1 (PV1) and Cryptosporidium parvum in an anaerobic and reduced groundwater system that has been identified as storage zones for aquifer storage and recovery (ASR) facilities.Methods a
Authors
John T. Lisle, Geroge Lukasic
Geoelectric survey of the Granite Gravel aquifer, Llano Uplift, Central Texas, to determine locations for water wells
An electrical geophysical survey was completed within a small area of the Llano Uplift of central Texas to determine locations to install two water wells in the Granite Gravel aquifer (GGA). Electrical resistivity tomography (ERT) was performed along two 188-m long profiles that intersected at the approximate center of a 100-m by 100-m self-potential (SP) map. The ERT survey was completed to map t
Authors
Scott Ikard, David S. Wallace, Andrew Teeple, Gregory Stanton
Editorial: Environmental DNA innovations for conservation
Environmental DNA (eDNA) analysis refers to the collection of bulk environmental samples such as water, sediment, or air, and studying the genetic remnants that organisms have shed into their environment to gain information about species presence.
Authors
Matthew A Barnes, Katy E. Klymus, Hiroki Yamanaka
Estimates of water use associated with continuous oil and gas development in the Permian Basin, Texas and New Mexico, 2010–19, with comparisons to the Williston Basin, North Dakota and Montana
The Permian Basin, in west Texas and southeastern New Mexico is one of the largest conventional oil and gas reservoirs in the United States and is becoming one of the world’s largest continuous oil and gas (COG) reservoirs. Advances in technology have enabled oil and gas to be extracted from reservoirs that historically were developed using conventional, or vertical, well drilling techniques. Conv
Authors
Natalie A. Houston, Grady P. Ball, Amy E. Galanter, Joshua F. Valder, Ryan R. McShane, Joanna N. Thamke, Jeremy S. McDowell
Invasive black carp as a reservoir host for the freshwater mollusk parasite Aspidogaster conchicola: Further evidence of mollusk consumption and implications for parasite dispersal
Black Carp (Mylopharyngodon piceus) has invaded the Mississippi River and is a potential threat to native mollusks. During prior diet research, we discovered that the fluke Aspidogaster conchicola, a mollusk parasite, occurs regularly in the gastrointestinal tract of Black Carp. The fluke remains in fish intestines for extended periods after the fish has consumed its host. Flukes were found in 33%
Authors
Barry C. Poulton, Jennifer Bailey, Patrick Kroboth, Amy E. George, Duane Chapman
Effects of culvert construction on streams and macroinvertebrate communities at selected sites in the East Gulf Coastal Plain of Alabama, 2010–19
The U.S. Geological Survey, in cooperation with the Alabama Department of Transportation, evaluated the role of culvert construction in altering streams and habitats of benthic macroinvertebrate communities at selected study sites in the northern East Gulf Coastal Plain of Alabama during 2011–19. Analysis included examinations of changes in stream channel geometry, suspended sediment, turbidity, a
Authors
Aaron L. Pugh, Amy C. Gill
Temperature-based modeling of incubation period to protect loggerhead hatchlings on an urban beach in Northwest Florida
Sea turtle hatchlings face many natural and anthropogenic threats during their short journey to the water after emerging from nests. Reducing hatchling mortality is critical to population recovery of imperiled sea turtle species; however, protecting hatchlings is particularly challenging on beaches degraded by human development and disturbances, including artificial lighting. Managers need practic
Authors
Kennard P. Watson, Margaret Lamont
Increased growth rates of stream salamanders following forest harvesting
Timber harvesting can influence headwater streams by altering stream productivity, with cascading effects on the food web and predators within, including stream salamanders. Although studies have examined shifts in salamander occupancy or abundance following timber harvest, few examine sublethal effects such as changes in growth and demography. To examine the effect of upland harvesting on growth
Authors
Jacquelyn C. Guzy, Brian J. Halstead, Kelly M. Halloran, Jessica A. Homyack, John D. Willson