Publications
Filter Total Items: 26
Reimagining large river management using the Resist–Accept–Direct (RAD) framework in the Upper Mississippi River
BackgroundLarge-river decision-makers are charged with maintaining diverse ecosystem services through unprecedented social-ecological transformations as climate change and other global stressors intensify. The interconnected, dendritic habitats of rivers, which often demarcate jurisdictional boundaries, generate complex management challenges. Here, we explore how the Resist–Accept–Direct (RAD) fra
Authors
Nicole K. Ward, Abigail Lynch, Erik A. Beever, Joshua Booker, Kristen L. Bouska, Holly Susan Embke, John F. Kocik, Joshua Kocik, Mary Grace T. Lemon, David J. Lawrence, Douglas Limpinsel, Madeline Magee, Bryan M. Maitland, Owen P. McKenna, Andrew R. Meier, John M. Morton, Jeffrey Muehlbauer, Robert Newman, Devon C. Oliver, Heidi M. Rantala, Greg G. Sass, Aaron D. Shultz, Laura Thompson, Jennifer L. Wilkening
Differing field methods and site conditions lead to varying bias in suspended sediment concentrations in the Lower Mississippi and Atchafalaya Rivers
At sites that have been sampled for decades, changes in field and laboratory methods happen over time as instrumentation and protocols improve. Here, we compare the influence of depth- and point-integrated sampling on total, fine (< 0.0625 mm), and coarse (≥ 0.0625 mm) suspended sediment (SS) concentrations in the Lower Mississippi and Atchafalaya Rivers. Using historical field method information,
Authors
Jennifer C. Murphy, Lindsey Ayn Schafer, Scott Mize
Quantifying ecosystem states and state transitions of the Upper Mississippi River System using topological data analysis
Aquatic systems worldwide can exist in multiple ecosystem states (i.e., a recurring collection of biological and chemical attributes), and effectively characterizing multidimensionality will aid protection of desirable states and guide rehabilitation. The Upper Mississippi River System is composed of a large floodplain river system spanning 2200 km and multiple federal, state, tribal and local gov
Authors
Danelle M. Larson, Wako Bungula, Casey McKean, Alaina Stockdill, Amber Lee, Frederick Miller, Killian Davis
FY22 Technical Report: Evaluation of fish passage for assessment of invasive carp deterrents at locks in the upper Mississippi River
FY22 Technical Report for the project, "Evaluation of fish passage for assessment of invasive carp deterrents at locks in the Upper Mississippi River." This document describes specific methods, highlights, and results that show how progress towards meeting objectives in a timely manner.
Authors
Andrea K. Fritts, Joshua Abner, Mark W. Fritts, James T. Lamer, Mark Cornish
Long-term Mississippi River trends expose shifts in the river load response to watershed nutrient balances between 1975 and 2017
Excess nutrients transported by the Mississippi River (MR) contribute to hypoxia in the Gulf of Mexico. Nutrient balances are key drivers to river nutrient loads and represent inputs (fertilizer, manure, deposition, wastewater, N-fixation, and weathering) minus outputs (nutrient uptake and removal in harvest, and N emissions). Here, we quantified annual changes in nitrogen (N) and phosphorus (P) r
Authors
Sarah M. Stackpoole, Robert D. Sabo, James A. Falcone, Lori A. Sprague
Nitrogen and phosphorus sources and delivery from the Mississippi/Atchafalaya River Basin: An update using 2012 SPARROW models
Nitrogen (N) and phosphorus (P) inputs throughout the Mississippi/Atchafalaya River Basin (MARB) have been linked to the Gulf of Mexico hypoxia and water‐quality problems throughout the MARB. To describe N and P loading throughout the MARB, SPAtially Referenced Regression On Watershed attributes (SPARROW) models were previously developed based on nutrient inputs and management similar to 1992 and
Authors
Dale M. Robertson, David A. Saad
Songbird use of interior and edge floodplain forest sites along the Upper Mississippi River, USA, during spring migration and breeding seasons
Floodplain forests of large rivers in the midwestern United States are naturally fragmented by sloughs, backwaters, wetlands, and shrub carr. On the highly altered Upper Mississippi River (UMR), resource managers want to protect and manage floodplain forests to benefit forest “interior” bird species. To discover bird relations with interior and edge floodplain forest, we characterized bird assembl
Authors
Eileen M. Kirsch, Brian R. Gray
Recent planform changes in the Upper Mississippi River
Geomorphic changes in the Upper Mississippi River (UMR) have long been a concern of river agencies charged with maintaining and restoring river habitat (GREAT 1980; Jackson et al. 1981; USFWS 1992). Large meandering alluvial rivers like the UMR are expected to constantly change and adjust their fluvial landforms within their riparian corridors as a result of the natural interaction of hydrologic p
Authors
James T. Rogala, Faith A. Fitzpatrick, Jon S. Hendrickson
Breeding birds of the upper Mississippi River floodplain forest: One community in a changing forest, 1994 to 1997
Floodplain forest on the upper Mississippi River (UMR), a unique habitat in the Midwest that is important for many bird species, has been reduced and is undergoing continued reduction and changes in structure and species diversity because of river engineering and invasive species. Hydrological changes are causing tree diversity to decline favoring Acer saccharinum (silver maple) and Fraxinus penns
Authors
Eileen M. Kirsch
Karst geology of the Upper Midwest, USA
Karst in the Upper Midwest occurs within a thick sequence of mixed carbonate and siliciclastic Cambrian through Pennsylvanian sedimentary rocks, with a minor occurrence of karst in Proterozoic sandstone. Deposition of the sediments occurred on a marine epeiric ramp that spanned much of the North American continent through most of the Paleozoic. The Upper Midwest region experienced dramatic changes
Authors
Daniel H. Doctor, E. Calvin Alexander
Bathymetric and velocimetric surveys at highway bridges crossing the Missouri and Mississippi Rivers on the periphery of Missouri, July–August 2018
Bathymetric and velocimetric data were collected by the U.S. Geological Survey, in cooperation with the Missouri Department of Transportation, near 7 bridges at 6 highway crossings of the Missouri and Mississippi Rivers on the periphery of the State of Missouri from July 16 to August 13, 2018. A multibeam echosounder mapping system was used to obtain channel-bed elevations for river reaches about
Authors
Richard J. Huizinga
Lock operations influence upstream passages of invasive and native fishes at a Mississippi River high-head dam
Asian carps continue to expand their range in North America, necessitating efforts to limit the spread and establishment of reproducing populations. Mississippi River Lock and Dam 19 is a high-head dam that represents a population ‘pinch-point’ as passage through the lock chamber is the only means by which fishes can complete upstream movement. As such, this location could be a pivotal control poi
Authors
Andrea K. Fritts, Brent C. Knights, Jessica C. Stanton, Amanda S. Milde, Jonathan M. Vallazza, Marybeth K. Brey, Sara J. Tripp, Thomas E. Devine, Wesley Sleeper, James T. Lamer, Kyle J. Mosel