Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10352
Ecological requirements for pallid sturgeon reproduction and recruitment in the Missouri River—Annual report 2013 Ecological requirements for pallid sturgeon reproduction and recruitment in the Missouri River—Annual report 2013
The Comprehensive Sturgeon Research Project is a multiyear, multiagency collaborative research framework developed to provide information to support pallid sturgeon recovery and Missouri River management decisions. The project strategy integrates field and laboratory studies of pallid sturgeon reproductive ecology, early life history, habitat requirements, and physiology. The project...
Authors
Aaron J. Delonay, Robert B. Jacobson, Kimberly A. Chojnacki, Patrick J. Braaten, Kevin J. Buhl, Brandon L Eder, Caroline M. Elliott, Susannah O. Erwin, David B. Fuller, Tyler M. Haddix, Hallie L.A. Ladd, Gerald E. Mestl, Diana M. Papoulias, Jason C. Rhoten, Christopher J. Wesolek, Mark L. Wildhaber
Ecological requirements for pallid sturgeon reproduction and recruitment in the Missouri River—A synthesis of science, 2005 to 2012 Ecological requirements for pallid sturgeon reproduction and recruitment in the Missouri River—A synthesis of science, 2005 to 2012
This report is intended to synthesize the state of the scientific understanding of pallid sturgeon ecological requirements to provide recommendations for future science directions and context for Missouri River restoration and management decisions. Recruitment of pallid sturgeon has been low to non-existent throughout its range. Emerging understanding of the genetic structure of pallid...
Authors
Aaron J. Delonay, Kimberly A. Chojnacki, Robert B. Jacobson, Janice L. Albers, Patrick J. Braaten, Edward A. Bulliner, Caroline M. Elliott, Susannah O. Erwin, David B Fuller, Justin D. Haas, Hallie L.A. Ladd, Gerald E. Mestl, Diana M. Papoulias, Mark L. Wildhaber
Summary of U.S. Geological Survey studies conducted in cooperation with the Citizen Potawatomi Nation, central Oklahoma, 2011–14 Summary of U.S. Geological Survey studies conducted in cooperation with the Citizen Potawatomi Nation, central Oklahoma, 2011–14
The U.S. Geological Survey conducted hydrologic studies and published three U.S. Geological Survey scientific investigations reports in cooperation with the Citizen Potawatomi Nation from 2011 to 2014 to characterize the quality and quantity of water resources. The study areas of those reports consisted of approximately 960 square miles in parts of three counties in central Oklahoma...
Authors
William J. Andrews, Carol Becker, Derek W. Ryter, S. Jerrod Smith
Hydrologic conditions in the South Coast aquifer, Puerto Rico, 2010–15 Hydrologic conditions in the South Coast aquifer, Puerto Rico, 2010–15
In 1958, the U.S. Geological Survey began documenting hydrologic conditions, including groundwater levels, groundwater withdrawals for agricultural irrigation and public water supply, and water quality, in the South Coast aquifer, Puerto Rico. This information has improved the understanding of the water resources of the region. The hydrologic data indicate that (1) groundwater levels...
Authors
Sigfredo Torres-Gonzalez, Jose M. Rodriguez
Hydrogeological framework, numerical simulation of groundwater flow, and effects of projected water use and drought for the Beaver-North Canadian River alluvial aquifer, northwestern Oklahoma Hydrogeological framework, numerical simulation of groundwater flow, and effects of projected water use and drought for the Beaver-North Canadian River alluvial aquifer, northwestern Oklahoma
This report describes a study of the hydrology, hydrogeological framework, numerical groundwater-flow models, and results of simulations of the effects of water use and drought for the Beaver-North Canadian River alluvial aquifer, northwestern Oklahoma. The purpose of the study was to provide analyses, including estimating equal-proportionate-share (EPS) groundwater-pumping rates and the...
Authors
Derek W. Ryter, Jessica S. Correll
Integrative modelling reveals mechanisms linking productivity and plant species richness Integrative modelling reveals mechanisms linking productivity and plant species richness
How ecosystem productivity and species richness are interrelated is one of the most debated subjects in the history of ecology. Decades of intensive study have yet to discern the actual mechanisms behind observed global patterns. Here, by integrating the predictions from multiple theories into a single model and using data from 1,126 grassland plots spanning five continents, we detect...
Authors
James B. Grace, T. Michael Anderson, Eric W. Seabloom, Elizabeth T. Borer, Peter B. Adler, W Stanley Harpole, Yann Hautier, Helmut Hillebrand, Eric M. Lind, Meelis Partel, Jonathan D. Bakker, Yvonne M. Buckley, Michael J. Crawley, Ellen Ingman Damschen, Kendi F. Davies, Philip A. Fay, Jennifer Firn, Daniel S. Gruner, Andy Hector, Johannes M.H. Knops, Andrew S. MacDougall, Brett A. Melbourne, John W. Morgan, John L. Orrock, Suzanne M. Prober, Melinda D. Smith
Forcing and variability of nonstationary rip currents Forcing and variability of nonstationary rip currents
Surface wave transformation and the resulting nearshore circulation along a section of coast with strong alongshore bathymetric gradients outside the surf zone are modeled for a consecutive 4 week time period. The modeled hydrodynamics are compared to in situ measurements of waves and currents collected during the Nearshore Canyon Experiment and indicate that for the entire range of...
Authors
Joseph W. Long, H.T. Ozkan-Haller
Diet of diamondback terrapins (Malaclemys terrapin) in subtropical mangrove habitats in South Florida Diet of diamondback terrapins (Malaclemys terrapin) in subtropical mangrove habitats in South Florida
Unique among turtles as the only exclusively estuarine species, the diamondback terrapin’s (Malaclemys terrapin) life history predisposes it to impacts from humans both on land and in the near-shore environment. Terrapins are found in salt marshes and mangroves along the Atlantic and Gulf coasts from Massachusetts to Texas. Whereas previous dietary studies have elucidated terrapins’ role...
Authors
Mathew J. Denton, Kristen M. Hart, Amanda W.J. Demopoulos, Anton Oleinik, John N. Baldwin
Twenty-six years of post-release monitoring of Florida manatees (Trichechus manatus latirostris): evaluation of a cooperative rehabilitation program Twenty-six years of post-release monitoring of Florida manatees (Trichechus manatus latirostris): evaluation of a cooperative rehabilitation program
The rescue, rehabilitation, and release of Florida manatees (Trichechus manatus latirostris) into the wild has occurred since 1974; however, a comprehensive evaluation of the outcomes of the releases has never been conducted. Herein, we examined data for 136 Florida manatees that were rehabilitated and released with telemetry tags between 1988 and 2013 to determine release outcome of...
Authors
Nicole M. Adimey, Monica Ross, Madison Hall, James P. Reid, Margie E. Barlas, Lucy W Keith Diagne, Robert K. Bonde
Scaling relationships among drivers of aquatic respiration from the smallest to the largest freshwater ecosystems Scaling relationships among drivers of aquatic respiration from the smallest to the largest freshwater ecosystems
To address how various environmental parameters control or constrain planktonic respiration (PR), we used geometric scaling relationships and established biological scaling laws to derive quantitative predictions for the relationships among key drivers of PR. We then used empirical measurements of PR and environmental (soluble reactive phosphate [SRP], carbon [DOC], chlorophyll a [Chl-a)...
Authors
Ed K Hall, Donald Schoolmaster, A.M Amado, Edward G. Stets, J.T. Lennon, L. Domaine, J.B. Cotner
Invasive pythons, not anthropogenic stressors, explain the distribution of a keystone species Invasive pythons, not anthropogenic stressors, explain the distribution of a keystone species
Untangling the causes of native species loss in human-modified systems is difficult and often controversial. Evaluating the impact of non-native species in these systems is particularly challenging, as additional human perturbations often precede or accompany introductions. One example is the ongoing debate over whether mammal declines within Everglades National Park (ENP) were caused by...
Authors
Adia R. Sovie, Robert A. McCleery, Robert J. Fletcher, Kristen M. Hart
Management-driven science synthesis: An evaluation of Everglades restoration trajectories Management-driven science synthesis: An evaluation of Everglades restoration trajectories
The Synthesis of Everglades Restoration andEcosystem Services (SERES) Project was funded in 2010 by the U.S. Department of Interior (DOI) through the Critical Ecosystem Studies Initiative (CESI) and established to synthesize the ever-growing body of Everglades scientific information with the goal of addressing topics that have hampered restoration since the Comprehensive Everglades...
Authors
Stephen E Davis, James M. Beerens, Rena R. Borkhataria, Daniel L. Childers, Jay Choi, Steven M Davis, Carl Fitz, Evelyn Gaiser, Hiram Henriquez, Thomas E. Lodge, Judson Harvey, Frank Marshall, Bobby McCormick, Melodie Naja, Todd Osborne, Michael S. Ross, Jay Sah, Joel C. Trexler, Thomas Van Lent, Paul R. Wetzel