Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 42704
Remnant hardwood forest mapping within the Upper Mississippi River floodplain Remnant hardwood forest mapping within the Upper Mississippi River floodplain
Executive Summary The primary objective of the project was to locate previously unknown stands of mast-producing hardwood forest trees in the Upper Mississippi River floodplain using existing information. We located and mapped 399 previously unknown hardwood forest stands within the Mississippi River floodplain area of navigation pools 9, 10, and 11. Using color infrared images in...
Authors
Jenny L. Hanson, Rich King, Erin E. Hoy
Field-based method for assessing duration of infectivity for influenza A viruses in the environment Field-based method for assessing duration of infectivity for influenza A viruses in the environment
Understanding influenza A virus (IAV) persistence in wetlands is limited by a paucity of field studies relating to the maintenance of infectivity over time. The duration of IAV infectivity in water has been assessed under variable laboratory conditions, but results are difficult to translate to more complex field conditions. We tested a field-based method to assess the viability of IAVs...
Authors
Andrew B. Reeves, Andrew M. Ramey, Joshua C. Koch, Rebecca L. Poulson, David E. Stallknecht
Copper concentrations in the upper Columbia River as a limiting factor in White Sturgeon recruitment and recovery Copper concentrations in the upper Columbia River as a limiting factor in White Sturgeon recruitment and recovery
Currently there is little natural recruitment of white sturgeon (Acipenser transmontanus) in the Upper Columbia River located in British Columbia, Canada and Washington, USA. This review of life history, physiology, and behavior of white sturgeon, along with data from recent toxicological studies, suggest that trace metals, especially Cu, affect survival and behavior of early life stage...
Authors
Holly J. Puglis, Aida Farag, Christopher A. Mebane
Stand density, drought, and herbivory constrain ponderosa pine regeneration pulse Stand density, drought, and herbivory constrain ponderosa pine regeneration pulse
Trees in dry forests often regenerate in episodic pulses when wet periods coincide with ample seed production. Factors leading to success or failure of regeneration pulses are poorly understood. We investigated the impacts of stand thinning on survival and growth of the 2013 cohort of ponderosa pine (Pinus ponderosa Douglas ex P. Lawson & C. Lawson) seedlings in northern Arizona, United...
Authors
Thomas E. Kolb, Kelsey Flathers, John B. Bradford, Caitlin M. Andrews, Lance A. Asherin, W. Keith Moser
Economic impacts of Wyoming Landscape Conservation Initiative Conservation projects in Wyoming Economic impacts of Wyoming Landscape Conservation Initiative Conservation projects in Wyoming
Executive Summary This report estimates the economic impacts on the Wyoming economy from investments made by the Wyoming Landscape Conservation Initiative (WLCI) on conservation and restoration projects. The WLCI has been working in southwestern Wyoming since 2007 to coordinate science and management decisions among government and private entities that invest in conservation projects...
Authors
Christopher Huber, Matthew Flyr, Catherine Cullinane Thomas
Sustaining Environmental Capital Initiative summary report Sustaining Environmental Capital Initiative summary report
Federal agencies need credible scientific information to determine the production and value of ecosystem services in an efficient and timely manner. The U.S. Geological Survey addresses this scientific information need through the Sustaining Environmental Capital Initiative project. The project has relied on U.S. Geological Survey expertise related to water, fisheries, advanced modeling...
Authors
Christopher Huber, James Meldrum, Rudy Schuster, Zachary H. Ancona, Kenneth J. Bagstad, Scott M. Beck, Daren M. Carlisle, Peter R. Claggett, Fabiano Franco, Heather S. Galbraith, Michelle Haefele, Kristin R Hoelting, Dianna M. Hogan, Kristina G. Hopkins, Tim Kern, Collin B. Lawrence, Stacy Lischka, John B. Loomis, Julie M. Mueller, Gregory E. Noe, Emily Pindilli, Brian Quay, Darius J. Semmens, Wilson Sinclair, Daniel E. Spooner, Brian Voigt, Barabara St. John White
Integrating side-scan sonar and acoustic telemetry to estimate the annual spawning run size of Atlantic sturgeon in the Hudson River Integrating side-scan sonar and acoustic telemetry to estimate the annual spawning run size of Atlantic sturgeon in the Hudson River
There is considerable interest in evaluating the status and trends of sturgeon populations, yet many traditional approaches to estimating the abundance of fishes are intractable due to their biology and rarity. Side-scan sonar has recently emerged as an effective tool for censusing sturgeon in rivers, yet challenges remain for censusing open populations that may visit specific habitats...
Authors
David C. Kazyak, Amy M Flowers, Nathan J. Hostetter, John A Madsen, Matthew W. Breece, Amanda Higgs, Lori M. Brown, Andy Royle, Dewayne A. Fox
Dermal denticle assemblages in coral reef sediments correlate with conventional shark surveys Dermal denticle assemblages in coral reef sediments correlate with conventional shark surveys
1. It is challenging to assess long-term trends in mobile, long-lived, and relatively rare species such as sharks. Despite ongoing declines in many coastal shark populations, conventional surveys might be too fleeting and too recent to describe population trends over decades to millennia. Placing recent shark declines into historical context should improve management efforts as well as...
Authors
Erin M. Dillon, Kevin D. Lafferty, Douglas J. McCauley, Darcy Bradley, Richard D. Norris, Jennifer E. Caselle, Graziella V. DiRenzo, Jonathan P.A. Gardner, Aaron O’Dea
Wetland water-management may influence mercury bioaccumulation in songbirds and ducks at a mercury hotspot Wetland water-management may influence mercury bioaccumulation in songbirds and ducks at a mercury hotspot
Mercury is a persistent, biomagnifying contaminant that can cause negative behavioral, immunological, and reproductive effects in wildlife and human populations. We examined the role of wetland water-management on mercury bioaccumulation in songbirds and ducks at Kellys Slough National Wildlife Refuge Complex, near Grand Forks, North Dakota USA. We assessed mercury concentrations in...
Authors
Virginia L. Winder, Michael J. Anteau, Mark R Fisher, Mary Kate Wilcox, Lawrence Igl, Josh T. Ackerman
Trends of litter decomposition and soil organic matter stocks across forested swamp environments of the southeastern US Trends of litter decomposition and soil organic matter stocks across forested swamp environments of the southeastern US
A common idea in the discussion of soil carbon processes is that litter decomposition rates and soil carbon stocks are inversely related. To test this overall hypothesis, simultaneous studies were conducted of the relationship of environmental gradients to leaf and wood decomposition, buried cloth decomposition and percent soil organic matter in Taxodium distichum swamps across the...
Authors
Beth A. Middleton
Estimating bedload from suspended load and water discharge in sand bed rivers Estimating bedload from suspended load and water discharge in sand bed rivers
Estimates of fluvial sediment discharge from in situ instruments are an important component of large‐scale sediment budgets that track long‐term geomorphic change. Suspended sediment load can be reliably estimated using acoustic or physical sampling techniques; however, bedload is difficult to measure directly and can consequently be one of the largest sources of uncertainty in estimates...
Authors
T.C. Ashley, B. McElroy, D. Buscombe, Paul E. Grams, M. Kaplinski
Early goose arrival increases soil nitrogen availability more than an advancing spring in coastal western Alaska Early goose arrival increases soil nitrogen availability more than an advancing spring in coastal western Alaska
An understudied aspect of climate change-induced phenological mismatch is its effect on ecosystem functioning, such as nitrogen (N) cycling. Migratory herbivore arrival time may alter N inputs and plant–herbivore feedbacks, whereas earlier springs are predicted to increase N cycling rates through warmer temperatures. However, the relative importance of these shifts in timing and how they...
Authors
Ryan T. Choi, Karen H. Beard, Katherine Kelsey, Joshua Leffler, Joel A. Schmutz, Jeffrey Welker