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A nitrifier-enriched microbial community contributes to the degradation of environmental DNA
Environmental DNA (eDNA) surveys are a promising alternative to traditional monitoring of invasive species, rare species, and biodiversity. Detecting organism-specific eDNA reduces the need to collect physical specimens for population estimates, and the high sensitivity of eDNA assays may improve detection of rare or cryptic species. However, correlating estimated concentrations of eDNA with speci
Authors
Rachelle Elaine Beattie, Caren C. Helbing, Jacob J. Imbery, Katy E. Klymus, Jonathan Lopez Duran, Cathy A. Richter, Anita A. Thambirajah, Nathan Thompson, Thea Margaret Edwards
Proximate factors affecting mortality and maternal abandonment of young free-roaming feral horse foals
The burgeoning population of feral horses in the American west is due to high population growth, resulting from low adult mortality and high foal survival. In two populations of feral horses in western Utah, USA only 15 foals died (5%; mean age <1 month) over a 4-year period. Seven additional foals (age <70 days) were observed separated from their dam, with no return to suckling or associating wit
Authors
Sarah R. B. King, Mary J. Cole, Christine Barton, Kathryn A. Schoenecker
Informing management of recovering predators and their prey with ecological diffusion models
The reintroduction and recovery of predators can be ecologically beneficial as well as socially and economically controversial. However, the growth and expansion of predator populations, and thus their ecological, social, and economic impacts, are not static but rather they vary in space and time. We propose a spatiotemporal statistical modeling framework based on ecological diffusion to better in
Authors
Joseph Michael Eisaguirre, Perry J. Williams, Xinyi Lu, Michelle L. Kissling, Paul A Schutte, Benjamin P Weitzman, William S. Beatty, George G. Esslinger, Jamie N. Womble, Mevin B. Hooten
Prioritizing science efforts to inform decision making on public lands
Public land management agencies in the US are committed to using science-informed decision making, but there has been little research on the types and topics of science that managers need most to inform their decisions. We used the National Environmental Policy Act to identify four types of science information needed for making decisions relevant to public lands: (1) data on resources of concern,
Authors
Sarah K. Carter, Travis Haby, Jennifer K. Meineke, Alison C. Foster, Laine E. McCall, Leigh Espy, Megan A. Gilbert, Jeffrey E. Herrick, Karen Prentice
Baiting and banding: Expert opinion on how bait trapping may influence the occurrence of highly pathogenic avian influenza (HPAI) among dabbling ducks
A Eurasian lineage highly pathogenic avian influenza virus (HPAIV) of the clade 2.3.4.4b (Goose/Guangdong lineage) was detected in migratory bird populations in North America in December 2021, and it, along with its reassortants, have since caused wild and domestic bird outbreaks across the continent. Relative to previous outbreaks, HPAIV cases among wild birds in 2022 exhibited wider geographic e
Authors
Jennifer F. Provencher, Alana A. E. Wilcox, Samantha E. J. Gibbs, Lesley-Anne Howes, Mark L. Mallory, Margo J. Pybus, Andrew M. Ramey, Eric T. Reed, Chris Sharp, Catherine Soos, Iga Stasiak, Jim O. Leafloor
Importance of dense aquatic vegetation in seasonal phosphate and particle transport in an agricultural headwater stream
Agricultural headwater streams and ditches commonly host dense stands of aquatic vegetation that grow and decay over seasons and exert physical and biological controls on the transport of nutrients from cropland to larger rivers. This study examined changes in the transport of phosphorus (P) in an agricultural drainage ditch in the Maumee River Basin (Ohio, USA) by conducting constant rate injecti
Authors
Hannah R. Field, Audrey H. Sawyer, Susan A. Welch, Ryan K. Benefiel, Devan M. Mathie, James M. Hood, Ethan D. Pawlowski, Diana L. Karwan, Rebecca Kreiling, Zackary I. Johnson, Brittany R. Hanrahan, Kevin W. King
Mussel mass mortality in the Clinch River, USA: Metabolomics detects affected pathways and biomarkers of stress
Biologists monitoring freshwater mussel (order Unionida) populations rely on behavioral, often subjective, signs to identify moribund (“sick”) or stressed mussels, such as gaping valves and slow response to probing, and they lack clinical indicators to support a diagnosis. As part of a multi-year study to investigate causes of reoccurring mortality of pheasantshell (Ortmanniana pectorosa; synonym
Authors
Joel G. Putnam, John Steiner, Jordon Richard, Eric Leis, Tony Goldberg, Christopher D. Dunn, Rose Agbalog, Susan Knowles, Diane L. Waller
Wind-modulated groundwater discharge along a microtidal Arctic coastline
Groundwater discharge transports dissolved constituents to the ocean, affecting coastal carbon budgets and water quality. However, the magnitude and mechanisms of groundwater exchange along rapidly transitioning Arctic coastlines are largely unknown due to limited observations. Here, using first-of-its-kind coastal Arctic groundwater timeseries data, we evaluate the magnitude and drivers of ground
Authors
Julia Guimond, Casu Demir, Barret L. Kurylyk, Michelle A. Walvoord, James W. McClelland, M. Bayani Cardenas
Simultaneous stream assessment of antibiotics, bacteria, antibiotic resistant bacteria, and antibiotic resistant genes in an agricultural region of the United States
Antimicrobial resistance is now recognized as a leading global threat to human health. Nevertheless, there currently is a limited understanding of the environment's role in the spread of AMR and antibiotic resistant genes (ARG). In 2019, the U.S. Geological Survey conducted the first statewide assessment of antibiotic resistant bacteria (ARB) and ARGs in surface water and bed sediment collected fr
Authors
Carrie E Givens, Dana W. Kolpin, Laura E. Hubbard, Shannon M. Meppelink, David M. Cwiertny, Darrin A. Thompson, Rachael F. Lane, Michaelah C. Wilson
Sharing FAIR monitoring program data improves discoverability and reuse
Data resulting from environmental monitoring programs are valuable assets for natural resource managers, decision-makers, and researchers. These data are often collected to inform specific reporting needs or decisions with a specific timeframe. While program-oriented data and related publications are effective for meeting program goals, sharing well-documented data and metadata allows users to res
Authors
Jennifer M. Bayer, Rebecca A Scully, Erin K Dlabola, Jennifer L Courtwright, Christine L Hirsch, David P Hockman-Wert, Scott W. Miller, Brett B. Roper, W Carl Saunders, Marcia N Snyder
Supplying ecosystem services on US rangelands
Rangelands comprise 40% of the conterminous United States and they supply essential ecosystem services to society. A scenario assessment was conducted to determine how accelerating biophysical and societal drivers may modify their future availability. Four scenarios emerged: two may maintain rural communities by sustaining the prevailing ecosystem service of beef cattle production, and two may tra
Authors
David D. Briske, Steven R. Archer, Emily Burchfield, William Burnidge, Justin D. Derner, Hannah Gosnell, Jerry Hatfield, Clare E. Kazanski, Mona Khalil, Tyler J. Lark, Pamela L. Nagler, Osvaldo E. Sala, Nathan F. Sayre, Kimberly R. Stackhouse-Lawson
Nonlinear patterns of surface elevation change in coastal wetlands: The value of generalized additive models for quantifying rates of change
In the face of accelerating climate change and rising sea levels, quantifying surface elevation change dynamics in coastal wetlands can help to develop a more complete understanding of the implications of sea-level rise on coastal wetland stability. The surface elevation table-marker horizon (SET-MH) approach has been widely used to quantify and characterize surface elevation change dynamics in co
Authors
Laura Feher, Michael Osland, Darren Johnson, James Grace, Glenn R. Guntenspergen, David R. Stewart, Carlos A. Coronado-Molina, Fred H. Sklar