Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
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Areas contributing recharge to selected production wells in unconfined and confined glacial valley-fill aquifers in Chenango River Basin, New York Areas contributing recharge to selected production wells in unconfined and confined glacial valley-fill aquifers in Chenango River Basin, New York
In the Chenango River Basin of central New York, unconfined and confined glacial valley-fill aquifers are an important source of drinking-water supplies. The risk of contaminating water withdrawn by wells that tap these aquifers might be reduced if the areas contributing recharge to the wells are delineated and these areas protected from land uses that might affect the water quality. The...
Authors
Paul J. Friesz, John H. Williams, Jason S. Finkelstein, Joshua C. Woda
Development and application of Landsat-based wetland vegetation cover and unvegetated-vegetated marsh ratio (UVVR) for the conterminous United States Development and application of Landsat-based wetland vegetation cover and unvegetated-vegetated marsh ratio (UVVR) for the conterminous United States
Effective management and restoration of salt marshes and other vegetated intertidal habitats require objective and spatially integrated metrics of geomorphic status and vulnerability. The unvegetated-vegetated marsh ratio (UVVR), a recently developed metric, can be used to establish present-day vegetative cover, identify stability thresholds, and quantify vulnerability to open-water...
Authors
Neil K. Ganju, Brady R. Couvillion, Zafer Defne, Kate Ackerman
Aerial dispersal of Lygodium microphyllum spores within Arthur R. Marshall Loxahatchee National Wildlife Refuge Aerial dispersal of Lygodium microphyllum spores within Arthur R. Marshall Loxahatchee National Wildlife Refuge
Native across the Old World tropics from Africa to Southeast Asia and Australia, Lygodium microphyllum (Cav.) R. Br. (Old World Climbing Fern) is one of the most invasive plant species threatening South Florida ecosystems (Rodgers et al. 2014). This invasive fern was first collected as a naturalized plant in South Florida in the late 1960s (Beckner 1968). Subsequent populations were...
Authors
Alison G. Snow, Laura A. Brandt, Ryan L. Lynch, Erynn M. Call, Scott M. Duke-Sylvester, Don DeAngelis
Hydraulics of freshwater mussel habitat in select reaches of the Big River, Missouri Hydraulics of freshwater mussel habitat in select reaches of the Big River, Missouri
The Big River is a tributary to the Meramec River in south-central Missouri. It drains an area that has been historically one of the largest lead producers in the world, and associated mine wastes have contaminated sediments in much of the river corridor. This study investigated hydraulic conditions in four study reaches to evaluate the potential contribution of physical habitat dynamics...
Authors
Maura O. Roberts, Robert B. Jacobson, Susannah O. Erwin
Integration of satellite-based optical and synthetic aperture radar imagery to estimate winter cover crop performance in cereal grasses Integration of satellite-based optical and synthetic aperture radar imagery to estimate winter cover crop performance in cereal grasses
The magnitude of ecosystem services provided by winter cover crops is linked to their performance (i.e., biomass and associated nitrogen content, forage quality, and fractional ground cover), although few studies quantify these characteristics across the landscape. Remote sensing can produce landscape-level assessments of cover crop performance. However, commonly employed optical...
Authors
Jyoti Jennewein, Brian T. Lamb, W. Dean Hively, Alison Thieme, Resham Thapa, Avi Goldsmith, Phillip Dennison
A framework to integrate innovations in invasion science for proactive management A framework to integrate innovations in invasion science for proactive management
Invasive alien species (IAS) are a rising threat to biodiversity, national security, and regional economies, with impacts in the hundreds of billions of U.S. dollars annually. Proactive or predictive approaches guided by scientific knowledge are essential to keeping pace with growing impacts of invasions under climate change. Although the rapid development of diverse technologies and...
Authors
Charles B. van Rees, Brian K. Hand, Sean C. Carter, Charles Bargeron, Timothy Joseph Cline, Wesley M. Daniel, Jason A. Ferrante, Keith Gaddis, Margaret E. Hunter, Catherine S. Jarnevich, Melodie A. McGeoch, Jeffrey T. Morisette, Matthew E. Neilson, Helen E. Roy, Mary Ann Rozance, Adam Sepulveda, Rebekah D. Wallace, Diane Whited, Taylor Wilcox, John S. Kimball, Gordon Luikart
The North American Freshwater Migratory Fish Database (NAFMFD): Characterizing the migratory life histories of freshwater fishes of Canada, the United States and Mexico The North American Freshwater Migratory Fish Database (NAFMFD): Characterizing the migratory life histories of freshwater fishes of Canada, the United States and Mexico
Aim
Authors
Emily M. Dean, Arthur R. Cooper, Lizhu Wang, Wesley M. Daniel, Solomon David, Clayton Ernzen, Keith B. Gido, Edward Hale, Tim J. Haxton, William Kelso, Nancy J. Leonard, Chris Lido, Joseph Margraf, Michael D. Porter, Casey A. Pennock, David L. Propst, Jared Ross, Michelle Staudinger, Dana M. Infante, Gary Whelan
Hematology and biochemistry reference intervals for American alligator (Alligator mississippiensis) in South Florida, USA Hematology and biochemistry reference intervals for American alligator (Alligator mississippiensis) in South Florida, USA
We calculated reference intervals for 48 blood parameters from 120 wild American alligators (Alligator mississippiensis) in South Florida, US. Although previously reported by others, this study includes additional parameters not yet reported in wild populations. Most previously reported blood parameter values were similar to ours and fell within our reference intervals.
Authors
Laura A. Brandt, Nicole D. Jennings, Michiko A. Squires, Caitlin E. Hackett, Christopher D. Smith, Frank J. Mazzotti
Aquatic-life criteria compared to concentrations of cadmium, copper, lead, and zinc in streams near Fort Polk Military Reservation, Louisiana, December 2015–August 2016 Aquatic-life criteria compared to concentrations of cadmium, copper, lead, and zinc in streams near Fort Polk Military Reservation, Louisiana, December 2015–August 2016
The primary focus of this study was to document cadmium, copper, lead, and zinc concentrations in selected streams near the U.S. Army Joint Readiness Training Center (JRTC) and Fort Polk Military Reservation and to compare those values to Federal and State aquatic-life criteria guidelines. The acute aquatic-life criteria used for this study are as follows: the U.S. Environmental...
Authors
Roland W. Tollett
Surface-water-quality data to support implementation of revised freshwater aluminum water-quality criteria in Massachusetts, 2018–19 Surface-water-quality data to support implementation of revised freshwater aluminum water-quality criteria in Massachusetts, 2018–19
The U.S. Geological Survey, in cooperation with the Massachusetts Department of Environmental Protection, performed a study to inform the development of the department’s guidelines for the collection and use of water-chemistry data to support calculation of site-dependent aluminum criteria values. The U.S. Geological Survey collected and analyzed discrete water-quality samples at four...
Authors
David S. Armstrong, Jennifer G. Savoie, Leslie A. DeSimone, Kaitlin L. Laabs, Richard O. Carey
Global genetic diversity status and trends: Towards a suite of Essential Biodiversity Variables (EBVs) for genetic composition Global genetic diversity status and trends: Towards a suite of Essential Biodiversity Variables (EBVs) for genetic composition
Biodiversity underlies ecosystem resilience, ecosystem function, sustainable economies, and human well-being. Understanding how biodiversity sustains ecosystems under anthropogenic stressors and global environmental change will require new ways of deriving and applying biodiversity data. A major challenge is that biodiversity data and knowledge are scattered, biased, collected with...
Authors
Sean M. Hoban, Frederick I. Archer, Laura D. Bertola, Jason G. Bragg, Martin F. Breed, Michael W. Bruford, Melinda A. Coleman, Robert Ekblom, W. Chris Funk, Catherine E. Grueber, Brian K. Hand, Rodolfo Jaffé, Evelyn Jensen, Jeremy S. Johnson, Francine Kershaw, Libby Liggins, Anna J. MacDonald, Joachim Mergeay, Joshua M. Miller, Frank Muller-Karger, David O'Brien, Ivan Paz-Vinas, Kevin M. Potter, Orly Razgour, Cristiano Vernesi, Margaret Hunter
Increased mercury and reduced insect diversity in linked stream-riparian food webs downstream of a historical mercury mine Increased mercury and reduced insect diversity in linked stream-riparian food webs downstream of a historical mercury mine
Historical mining left a legacy of abandoned mines and waste rock in remote headwaters of major river systems in the western United States. Understanding the influence of these legacy mines on culturally and ecological important downstream ecosystems is not always straight-forward because of elevated natural levels of mineralization in mining-impacted watersheds. To test the ecological...
Authors
Johanna M. Kraus, JoAnn M. Holloway, Michael J. Pribil, Ben N. Mcgee, Craig A. Stricker, Danny Rutherford, Andrew S. Todd