Groundwater, biodiversity, and the role of flow system scale
Allison R Aldous, Marshall W. Gannett
2021, Ecohydrology (14)
Groundwater-dependent ecosystems and species (GDEs) are found throughout watersheds at locations of groundwater discharge, yet not all GDEs are the same, nor are the groundwater systems supporting them. Groundwater moves along a variety of flow paths of different lengths and with different contributing areas, ranging from...
Taxonomic and functional differences between winter and summer crustacean zooplankton communities in lakes across a trophic gradient
Kirill Shchapov, P. Wilburn, A. Bramburger, G. Silsbe, L. Olmanson, Christopher J. Crawford, E. Litchmann, T. Ozersky
2021, Journal of Plankton Research (43) 732-750
Despite increasing interest in winter limnology, few studies have examined under-ice zooplankton communities and the factors shaping them in different types of temperate lakes. To better understand drivers of zooplankton community structure in winter and summer, we sampled 13 lakes across a large trophic status gradient for crustacean zooplankton...
Water quality, instream habitat, and the distribution of suckers in the upper Lost River watershed of Oregon and California, summer 2018
Barbara A. Martin, Summer M. Burdick, Stephen T. Staiger, Caylen M. Kelsey
2021, Open-File Report 2021-1077
Executive SummaryEndangered Lost River (Deltistes luxatus) and shortnose (Chasmistes brevirostris) suckers primarily use lotic habitats during the spring spawning season in the Upper Klamath Lake watershed. However, summer-time surveys of the upper Lost River watershed in 1972, 1975 and 1989–90 indicated that adults of both endangered species use tributaries...
Michigan and Landsat
U.S. Geological Survey
2021, Fact Sheet 2021-3047
Water means a lot to Michigan, often called the Great Lakes State. The name “Michigan” comes from an Ojibwe word meaning large, or great, water or lake. As the only State touching four of the five Great Lakes—Michigan, Superior, Huron, and Erie—it claims the longest freshwater coastline in the United...
Negligible evidence for detrimental effects of Leucocytozoon infections among Emperor Geese (Anser canagicus) breeding on the Yukon-Kuskokwim Delta, Alaska
Andrew M. Ramey, Raymond Bucheit, Brian D. Uher-Koch, John Reed, M. Andreina Pacheco, Ananias Escalante, Joel Schmutz
2021, International Journal for Parasitology: Parasites and Wildlife (16) 103-112
Emperor Geese (Anser canagicus) are iconic waterfowl endemic to Alaska and adjacent areas of northeastern Russia that are considered to be near threatened by the International Union for Conservation. This species has been identified as harboring diverse viruses and parasites which have, at times, been associated with disease in other avian taxa....
Estimates of water use associated with continuous oil and gas development in the Permian Basin, Texas and New Mexico, 2010–19
Joshua F. Valder, Ryan R. McShane, Joanna N. Thamke, Jeremy S. McDowell, Grady P. Ball, Natalie A. Houston, Amy E. Galanter
2021, Scientific Investigations Report 2021-5090
In 2015, the U.S. Geological Survey started a topical study to quantify water use in areas of continuous oil and gas (COG) development. The first phase of the study was completed in 2019 and analyzed the Williston Basin. The second phase of the study analyzed the Permian Basin using the...
Hydrologic conditions in Kansas, water year 2020
Chantelle Davis
2021, Fact Sheet 2021-3045
The U.S. Geological Survey, in cooperation with Federal, State, and local agencies, maintains a long-term network of hydrologic monitoring stations in Kansas. This network included 219 real-time streamgages, 12 real-time reservoir-level monitoring stations, and 20 groundwater monitoring stations in water year (WY) 2020. A WY is a 12-month period from...
Marine distribution and foraging habitat highlight potential threats at sea for Endangered Bermuda Petrel Pterodroma cahow
André F Raine, Carina Gjerdrum, Isabeau Pratte, Jeremy Madeiros, Jonathan J. Felis, Josh Adams
2021, Endangered Species Research (45) 337-356
Marine spatial planning relies on detailed spatial information of marine areas to ensure effective conservation of species. To enhance our understanding of marine habitat use by the highly pelagic Bermuda petrel Pterodroma cahow, we deployed GPS tags on 6 chick-rearing adults in April 2019 and constructed a habitat suitability model using...
Coalescent methods reconstruct contributions of natural colonization and stocking to origins of Michigan inland Cisco (Coregonus artedi)
Jared J. Homola, John D Robinson, Jeannette Kanefsky, Wendylee Stott, Gary Whelan, Kim T Scribner
2021, Journal of Great Lakes Research (47) 1781-1792
Fish population structure in previously glaciated regions is often influenced by natural colonization processes and human-mediated dispersal, including fish stocking. Endemic populations are of conservation interest because they may contain rare and unique genetic variation. While coregonines are native to certain Michigan inland lakes, some were stocked with fish from...
An experimental evaluation of the efficacy of imaging flow cytometry (FlowCam) for detecting invasive Dreissened and Corbiculid bivalve veligers
Whitney Hassett, Julie Zimmerman, Gretchen Rollwagen-Bollens, Stephen M. Bollens, Timothy D. Counihan
2021, Lake and Reservoir Management (37) 406-417
Zebra (Dreissena polymorpha) and quagga (D. bugensis) mussels, first introduced from central Asia into the Great Lakes of North America in the late 1980s, have crossed the continental divide and more recently spread across western North America. At the same time, several new technologies have been developed for the early...
Spatiotemporal dynamics of CO2 gas exchange from headwater mountain streams
David W. Clow, Robert G. Striegl, Mark Dornblaser
2021, Journal of Geophysical Research: Biogeosciences (126)
Mountain streams play an important role in the global carbon cycle by transporting, metabolizing, and exchanging carbon they receive from the terrestrial environment. The rates at which these processes occur remain highly uncertain because of a paucity of observations and the difficulty of measuring gas exchange rates...
Mapping wetland burned area from Sentinel-2 across the southeastern United States and its contributions relative to Landsat 8 (2016-2019)
Melanie K. Vanderhoof, Todd Hawbaker, Casey Teske, Andrea Ku, Joe Noble, Joshua J. Picotte
2021, Fire (4)
Prescribed fires and wildfires are common in wetland ecosystems across the Southeastern United States. However, the wetland burned area has been chronically underestimated across the region due to (1) spectral confusion between open water and burned area, (2) rapid post-fire vegetation regrowth, and (3) high annual precipitation...
Exploring environmental factors that drive diel variations in tree water storage using wavelet analysis
Ryan Harmon, Holly Barnard, Frederick Day-Lewis, Deqiang Mao, Kamini Singha
2021, Frontiers in Water (3)
Internal water storage within trees can be a critical reservoir that helps trees overcome both short- and long-duration environmental stresses. We monitored changes in internal tree water storage in a ponderosa pine on daily and seasonal scales using moisture probes, a dendrometer, and time-lapse electrical resistivity imaging (ERI). These...
Evaluation of actual evapotranspiration rates from the Operational Simplified Surface Energy Balance (SSEBop) model in Florida and parts of Alabama and Georgia, 2000–17
Nicasio Sepulveda
2021, Scientific Investigations Report 2021-5072
Evapotranspiration (ET) is the water-vapor flux transported from the surface of the Earth into the atmosphere and is the sum of surface water directly evaporated and subsurface water transpired by plants. ET rates are commonly estimated by using potential or reference ET, which might differ from actual ET rates. Actual...
Estimation of dissolved-solids concentrations using continuous water-quality monitoring and regression models at four sites in the Yuma area, Arizona and California, January 2017 through March 2019
Jay R. Cederberg, Nicholas V. Paretti, Alissa L. Coes, Edyth Hermosillo, Lucia Andrade
2021, Scientific Investigations Report 2021-5080
Multiple linear regression models were developed to estimate dissolved-solids concentrations in water at four sites in the Yuma area between Imperial Dam, Arizona and California and the southerly international boundary with Mexico at San Luis, Arizona. Continuous and discrete water-quality data were collected at gaging stations in the Colorado River...
Seasonally dynamic nutrient modeling quantifies storage lags and time-varying reactivity across large river basins
Noah Schmadel, Judson Harvey, Gregory E. Schwarz
2021, Environmental Research Letters (16)
Nutrients that have gradually accumulated in soils, groundwaters, and river sediments in the United States over the past century can remobilize and increase current downstream loading, obscuring effects of conservation practices aimed at protecting water resources. Drivers of storage accumulation and release of nutrients are poorly understood at the spatial...
The Holocene dynamics of Ryder Glacier and ice tongue in north Greenland
Matt O’Regan, Thomas M. Cronin, Brendan Reilly, Aage K. Olsen Alstrup, Laura Gemery, Anna Golub, Larry A. Mayer, Mathieu Morlighem, Matthias Moros, Ole L. Munk, Johan Nilsson, Christof Pearce, Henrieka Detlef, Christian Stranne, Flor Vermassen, Gabriel West, Martin Jakobsson
2021, The Cryosphere (15) 4073-4097
The northern sector of the Greenland Ice Sheet is considered to be particularly susceptible to ice mass loss arising from increased glacier discharge in the coming decades. However, the past extent and dynamics of outlet glaciers in this region, and hence their vulnerability to climate change, are poorly documented. In...
Drivers of extreme water levels in a large, urban, high-energy coastal estuary – A case study of the San Francisco Bay
Cornelis M. Nederhoff, Rohin Saleh, Babak Tehranirad, Liv M. Herdman, Li H. Erikson, Patrick L. Barnard, Mick Van der Wegen
2021, Coastal Engineering (170)
Reliable and long-term hindcast data of water levels are essential in quantifying return period and values of extreme water levels. In order to inform design decisions on a local flood control district level, process-based numerical modeling has proven an essential tool...
Novel microbiome dominated by Arcobacter during anoxic excurrent flow from an ocean blue hole in Andros Island, The Bahamas
Deborah D. Iwanowicz, Robert B Jonas, William B. Schill, Kay Marano-Briggs
2021, PLoS ONE (16)
Andros Island, The Bahamas, composed of porous carbonate rock, has about 175 inland blue holes and over 50 known submerged ocean caves along its eastern barrier reef. These ocean blue holes can have both vertical and horizontal zones that penetrate under the island. Tidal forces drive water flow in and...
Identifying the ecological and management implications of mangrove migration in the northern Gulf of Mexico
Michael Osland
2021, Report
Climate change is transforming ecosystems and affecting ecosystem goods and services. Along the Gulf of Mexico and Atlantic coasts of the southeastern United States, the frequency and intensity of extreme freeze events greatly influences whether coastal wetlands are dominated by freeze-sensitive woody plants (mangrove forests) or freeze-tolerant grass-like plants (salt...
Physics-guided recurrent graph model for predicting flow and temperature in river networks
Xiaowei Jia, Jacob Aaron Zwart, Jeffrey Michael Sadler, Alison P. Appling, Samantha K. Oliver, Steven L. Markstrom, Jared Willard, Shaoming Xu, Michael Steinbach, Jordan Read, Vipin Kumar
2021, Conference Paper, Proceedings of the 2021 SIAM International Conference on Data Mining (SDM)
This paper proposes a physics-guided machine learning approach that combines machine learning models and physics-based models to improve the prediction of water flow and temperature in river networks. We first build a recurrent graph network model to capture the interactions among multiple segments in the river network....
Wetland selection by female Ring-Necked Ducks (Aythya collaris) in the Southern Atlantic Flyway
Tori D. Mezebish, Richard B. Chandler, Glenn H. Olsen, Michele Goodman, Frank C. Rohwer, Nicholas J. Meng
2021, Wetlands (41)
On the wintering grounds, wetland selection by waterfowl is influenced by spatiotemporal resource distribution. The ring-necked duck (Aythya collaris) winters in the southeastern United States where a disproportionate amount of Atlantic Flyway ring-necked duck harvest occurs. We quantified female ring-necked duck selection for wetland characteristics during and after the 2017-2018...
Assessment of diel cycling in nutrients and trace elements in the Eagle River Basin, 2017–18
Rodney J. Richards, Mark F. Henneberg
2021, Scientific Investigations Report 2021-5066
Diel cycles are known to occur in all types of waters, and increasing studies indicate routine water samples may not provide an accurate snapshot in concentrations of trace elements and nutrients. Diel behavior in neutral to alkaline pH ranges is independent of streamflow variability and concentration. Extensive historical U.S. Geological...
National seed strategy progress report, 2015-2020
Molly Lutisha Mccormick, Amanda N Carr, Patricia DeAngelis, Margaret Olwell, Regan Murray, Maggie Park
2021, Report
Native plants are the true green infrastructure we rely on for healthy, resilient, and biodiverse ecosystems. They protect us against climate change and natural disasters; create habitat for wildlife, rare species, and pollinators; and are vital for carbon sequestration. Without native plants, especially their seeds, we do not have the...
Cohesive sediment modeling in a shallow estuary: Model and environmental implications of sediment parameter variation
Rachel Allen, Jessica R. Lacy, Andrew W. Stevens
2021, Journal of Geophysical Research--Oceans (126)
Numerical models of sediment transport in estuarine systems rely on parameter values that are often poorly constrained and can vary on timescales relevant to model processes. The selection of parameter values can affect the accuracy of model predictions, while environmental variation of these parameters can impact the...
