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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 65,000 articles authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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First documentation of grass carp spawning in Lake Erie’s Central Basin
Grass carp (Ctenopharyngodon idella) are non-indigenous to North America having been translocated to the United States in the 1960s as a potential non-chemical solution for nuisance aquatic vegetation. Reproductively viable grass carp now exist in many watersheds in the United States. In the Great Lakes basin, grass carp were first discovered in the 1980s with direct confirmation of successful rep
Authors
Corbin David Hilling, Adam J. Landry, James Roberts, Nathan Thompson, Catherine A. Richter, Ryan E. Brown, Christine M. Mayer, Song S. Qian
Leveraging natural capital accounting to support businesses with nature-related risk assessments and disclosures
Nature loss threatens businesses, the global economy and financial stability. Understanding and addressing these risks for business will require credible measurement approaches and data. This paper explores how natural capital accounting (NCA) can support business data and information needs related to nature, including disclosures aligned with the Taskforce on Nature-related Financial Disclosures
Authors
Jane Carter Ingram, Emily McKenzie, Kenneth J. Bagstad, John Finisdore, Rayne van den Berg, Eli P. Fenichel, Michael Vardon, Stephen M. Posner, Marta Santamaria, Lisa Mandle, Richard J. Barker, James Spurgeon
Groundwater sustainability and land subsidence in California’s Central Valley
The Central Valley of California is one of the most prolific agricultural regions in the world. Agriculture is reliant on the conjunctive use of surface-water and groundwater. The lack of available surface-water and land-use changes have led to pumping-induced groundwater-level and storage declines, land subsidence, changes to streamflow and the environment, and the degradation of water quality. A
Authors
Claudia C. Faunt, Jonathan A. Traum, Scott E. Boyce, Whitney A. Seymour, Elizabeth Rae Jachens, Justin T. Brandt, Michelle Sneed, Sandra Bond, Marina Marcelli
Evaluation of streamflow predictions from LSTM models in water- and energy-limited regions in the United States
The application of Long Short-Term Memory (LSTM) models for streamflow predictions has been an area of rapid development, supported by advancements in computing technology, increasing availability of spatiotemporal data, and availability of historical data that allows for training data-driven LSTM models. Several studies have focused on improving the performance of LSTM models; however, few studie
Authors
Kul Bikram Khand, Gabriel B. Senay
Network connectivity contributes to native small-bodied fish assemblages in the upper Mississippi River system
Effective management and conservation of fishes requires understanding habitat use across multiple life stages while ensuring necessary habitats are both available and accessible. Tributary habitats may play an important role in recruitment and dispersal of fishes in anthropogenically modified rivers such as the Mississippi and Illinois Rivers of the Midwest U.S.A. Identifying source locations tha
Authors
Shaley A Valentine, Kristen L. Bouska, Gregory W. Whitledge
Developing transmissible vaccines for animal infections
Many emerging and reemerging pathogens originate from wildlife, but nearly all wild species are unreachable using conventional vaccination, which requires capture of and vaccine administration to individual animals. By enabling immunization at scales sufficient to interrupt pathogen transmission, transmissible vaccines (TVs) that spread themselves through wildlife populations by infectious process
Authors
Daniel G. Streicker, Megan E. Griffiths, Rustom Antia, Laura M. Bergner, Peter Bowman, Maria Vitoria dos Santos de Moraes, Kevin Esvelt, Mike Famulare, Amy T. Gilbert, Biao He, Michael A. Jarvis, David A. Kennedy, Jennifer Kuzma, Carolyne Nasimiyu Wanyonyi, Christopher Remien, Kyle Rosenke, Tonie E. Rocke, Courtney Schreiner, Justin Sheen, David Simons, Ivet A. Yordanova, James J. Bull, Scott L. Nuismer
Acute toxicity of the lampricide 4-nitro-3-(trifluoromethyl)phenol to the Mussel (Obovaria subrotunda), its host (Percina maculata), and a surrogate mussel species (Obovaria olivaria)
The risk of lampricide applications (such as 4-nitro-3-[trifluoromethyl]phenol [TFM]) to nontarget fauna continues to be a concern within the Great Lakes Fishery Commission Sea Lamprey Control Program, especially among imperiled aquatic species—such as native freshwater mussels. The Grand River (Ohio, USA) is routinely treated for larval sea lampreys (Petromyzon marinus), and this river contains p
Authors
Teresa J. Newton, Nicholas A. Schloesser, Cheryl A. Kaye, Chad K. Andresen, Michael A. Boogaard, Christina M. Carter, Ryan Jay Ellingson, Courtney A Kirkeeng, Justin Schueller
Vegetation loss following vertical drowning of Mississippi River deltaic wetlands leads to faster microbial decomposition and decreases in soil carbon
Wetland ecosystems hold nearly a third of the global soil carbon pool, but as wetlands rapidly disappear the fate of this stored soil carbon is unclear. The aim of this study was to quantify and then link potential rates of microbial decomposition after vertical drowning of vegetated tidal marshes in coastal Louisiana to known drivers of anaerobic decomposition altered by vegetation loss. Profiles
Authors
Courtney Creamer, Mark Waldrop, Camille Stagg, Kristen L. Manies, Melissa Millman Baustian, Claudia Laurenzano, Tiong Gim Aw, Monica Haw, Sergio Merino, Donald R. Schoolmaster, Sabrina N. Sevilgen, Rachel Katherine Villani, Eric Ward
Multi-scale effects of behavioral movement deterrents on invasive carp metapopulations
Behavioral deterrents of among-pool movement represent a promising tool for controlling invasive fish populations. To date, much of the research in this area has been focused on the direct effectiveness of different methods of deterrence. However, the effect of these structures on populations in spatially complex habitats is unknown. We combine a metacommunity model with movement data of two invas
Authors
Donald R. Schoolmaster, Aaron R. Cupp, Alison A. Coulter, Richard A. Erickson
Paleoenvironmental and paleoecological dynamics of the U.S. Atlantic Coastal Plain prior to and during the Paleocene-Eocene Thermal Maximum
We studied the rapid paleo-environmental changes and the corresponding biotic responses of benthic foraminifera of a shallow shelf site during the late Paleocene and the Paleocene-Eocene Thermal Maximum (PETM). The PETM is globally characterized by a negative δ13C excursion in marine and terrestrial sediments. Isotope data from the Atlantic Coastal Plain from the South Dover Bridge core, Maryland,
Authors
Monika Doubrawa, Peter Stassen, Marci M. Robinson, Robert P. Speijer
Benthic foraminiferal community changes across the Miocene climatic optimum Identified by SHEBI analysis (SHE analysis for biozone identification), Calvert Cliffs, Maryland, USA
The Calvert Cliffs, MD, an iconic section of Middle Miocene strata, have been well studied both paleontologically and stratigraphically for over a century. However, few studies of the Calvert Cliffs have looked at the benthic foraminifera. This study uses SHEBI analysis (SHE analysis for biozone identification) of benthic foraminiferal assemblages to analyze community change in the Calvert and Cho
Authors
Seth R. Sutton, Stephen J. Culver, Lee-Ann Hayek, David J. Mallinson, Marci M. Robinson, Harry J. Dowsett, Martin A. Buzas
Remotely mapping gullying and incision in Maryland Piedmont headwater streams using repeat airborne lidar
Headwater streams can contribute significant amounts of fine sediment to downstream waterways, especially when severely eroded and incised. Potential upstream sediment source identification is crucial for effective management of water quality, aquatic habitat, and sediment loads in a watershed. This study explored topographic openness (TO) derived from 1-m lidar for its ability to predict incision
Authors
Marina Metes, Andrew J. Miller, Matthew E. Baker, Kristina G. Hopkins, Daniel Jones