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Luminescence dating of stone structures in northeastern United States Luminescence dating of stone structures in northeastern United States
There is no consensus on who built the numerous stone structures that dot the archaeological landscape in the northeastern United States. Professional archaeologists traditionally have attributed them to colonial farmers, but increasing numbers of archaeologists have joined many nonprofessional groups and Native Americans in arguing for Indigenous origins. Better understanding of these...
Authors
Jim Feathers, Shannon A. Mahan
Time-varying rates of organic and inorganic mass accumulation in southeast Louisiana marshes: Relationships to sea-level anomalies and tropical storms Time-varying rates of organic and inorganic mass accumulation in southeast Louisiana marshes: Relationships to sea-level anomalies and tropical storms
Louisiana's coastal wetlands are complex systems that require a continuous input of organic and inorganic material to keep pace with relative sea-level rise. Coastal restoration projects such as sediment diversions are being implemented to mitigate land loss and increase availability of inorganic sediment to coastal wetlands, and marshes specifically rely on organic material to build...
Authors
Sophie Vincent, Carol Wilson, Gregg A. Snedden, Tracy Quirk
Confluence of time and space: An innovation for quantifying dynamics of hydrologic floodplain connectivity with remote sensing and GIS Confluence of time and space: An innovation for quantifying dynamics of hydrologic floodplain connectivity with remote sensing and GIS
Hydrologic connectivity is a crucial determinant of aquatic ecosystem services, governing the exchange of nutrients, sediments, chemicals, and biota. Various indices and metrics exist for quantifying hydrologic connectivity across diverse environments and scales. However, existing methodologies often fail to adequately capture lateral connectivity between floodplain lakes and streams...
Authors
Hafez Ahmad, Leandro E. Miranda, Corey Garland Dunn, Melanie R. Boudreau, Michael E. Colvin, Padmanava Dash
Highly pathogenic avian influenza virus H5N1 in double-crested cormorants (Nannopterum auritum) of the Chesapeake Bay, USA Highly pathogenic avian influenza virus H5N1 in double-crested cormorants (Nannopterum auritum) of the Chesapeake Bay, USA
Double-crested Cormorants (Nannopterum auritum) have historically exhibited low levels of infection and antibodies to avian influenza virus (AIV). The recent global expansion of clade 2.3.4.4b A/goose/Guangdong/1/1996 highly pathogenic (HP) avian influenza virus H5N1 (HPAI H5N1) has resulted in large-scale mortalities across diverse waterbird taxa including cormorants. We sampled 32 and...
Authors
Johanna Alexandra Harvey, Jeffery Dale Sullivan, Rebecca L. Poulson, Deborah L. Carter, Cindy P. Driscoll, Peter C. McGowan, Carl R. Callahan, Amy W. O'Donnell, Jennifer M. Mullinax, David E. Stallknecht, Diann J. Prosser
The 3D Elevation Program—Supporting Utah’s economy The 3D Elevation Program—Supporting Utah’s economy
Introduction High-quality elevation data for Utah inform decision making to improve the State’s economy. Light detection and ranging (lidar) data are used to support infrastructure planning and management, assess natural resources, and improve resiliency to hazards. The expanding availability of current and more accurate lidar data helps to better support natural resource conservation...
Authors
Cynthia L. Ritmiller
Hydrogeomorphic history, hydrodynamic conditions, and simulations of water levels and velocities from varying lake levels and streamflow for the Sheboygan Rivermouth and area of concern, Wisconsin Hydrogeomorphic history, hydrodynamic conditions, and simulations of water levels and velocities from varying lake levels and streamflow for the Sheboygan Rivermouth and area of concern, Wisconsin
In 2011–13, the U.S. Geological Survey (USGS) conducted a study of the hydrogeomorphic setting and hydrodynamic conditions of the lower Sheboygan River and island complex within the backwater zone of Lake Michigan. Analyses of historical aerial photographs from 1938–2010 indicated that the Wildwood Islands complex had experienced mainly erosion and what was mainly one island in 1938 had...
Authors
Faith A. Fitzpatrick, Stephen, M. Westenbroek, Paul C. Reneau, James D. Blount
Impoundments facilitate upstream invasion and introgression: Case studies of fluvial black basses (Micropterus spp.) in the southeastern USA Impoundments facilitate upstream invasion and introgression: Case studies of fluvial black basses (Micropterus spp.) in the southeastern USA
Impoundment construction has resulted in the alternation and loss of fluvial habitats, threatening the persistence of many native fishes. Compounding this threat, non-native species stocked into impoundments often invade interconnected fluvial habitats, where they may negatively affect native species. Black basses (genus Micropterus) are popular sportfishes with divergent ecologies: some...
Authors
A.T. Taylor, M.D. Tringali, James M. Long
Fungal impacts on Earth’s ecosystems Fungal impacts on Earth’s ecosystems
Over the past billion years, the fungal kingdom has diversified to more than two million species, with over 95% still undescribed. Beyond the well-known macroscopic mushrooms and microscopic yeast, fungi are heterotrophs that feed on almost any organic carbon, recycling nutrients through the decay of dead plants and animals and sequestering carbon into Earth’s ecosystems. Human-directed
Authors
Nicola T. Case, Sarah J. Gurr, Matthew C. Fisher, David S. Blehert, Charles Boone, Arturo Casadevall, Anuradha Chowdhary, Christina A. Cuomo, Cameron R. Currie, David W. Denning, Iuliana V. Ene, Lillian K. Fritz-Laylin, Aleeza C. Gerstein, Neil A. R. Gow, Asiya Gusa, Iliyan D. Iliev, Timothy Y. James, Hailing Jin, Regine Kahmann, Bruce S. Klein, James W. Kronstad, Kyla S. Ost, Kabir G. Peay, Rebecca S. Shapiro, Donald C. Sheppard, Neta Shlezinger, Jason E. Stajich, Eva H. Stukenbrock, John W. Taylor, Gerard D. Wright, Leah E. Cowen, Joseph Heitman, Julia A. Segre
Cell penetrating peptide-mediated delivery of gene-silencing nucleic acids to the invasive common reed Phragmites australis via foliar application Cell penetrating peptide-mediated delivery of gene-silencing nucleic acids to the invasive common reed Phragmites australis via foliar application
As a popular tool for gene function characterization and gene therapy, RNA interference (RNAi)-based gene silencing has been increasingly explored for potential applications to control invasive species. At least two major hurdles exist when applying this approach to invasive plants: (1) the design and screening of species- and gene-specific biomacromolecules (i.e., gene-silencing agents...
Authors
Qing Ji, Kurt P. Kowalski, Edward M. Golenberg, Seung Ho Chung, Natalie D. Barker, Wesley A. Bickford, Ping Gong
The effects of imidacloprid and polyester microfibers on the larval development of the endangered sunflower star The effects of imidacloprid and polyester microfibers on the larval development of the endangered sunflower star
Sea star wasting syndrome (SSWS) has affected numerous species of sea star, with populations of Pycnopodia helianthoides (Brandt, 1835) left most at risk. As their populations are struggling to recover, it is important to gain a better understanding of the impacts that the multiple stressors in their habitats can have on their populations. Contaminant stressors in particular are of...
Authors
Alexandra G. Tissot, Elise F. Granek, Fiona Curliss, Augustin Kalytiak-Davis, Jason Hodin, Michelle L. Hladik
Systematic shifts in the variation among host individuals must be considered in climate-disease theory Systematic shifts in the variation among host individuals must be considered in climate-disease theory
To make more informed predictions of host–pathogen interactions under climate change, studies have incorporated the thermal performance of host, vector and pathogen traits into disease models to quantify effects on average transmission rates. However, this body of work has omitted the fact that variation in susceptibility among individual hosts affects disease spread and long-term...
Authors
Joseph R. Mihaljevic, David James Páez
Continuous stream discharge, salinity, and associated data collected in the lower St. Johns River and its tributaries, Florida, 2022 Continuous stream discharge, salinity, and associated data collected in the lower St. Johns River and its tributaries, Florida, 2022
The U.S. Army Corps of Engineers, Jacksonville District, deepened the St. Johns River channel in Jacksonville, Florida, to accommodate larger, fully loaded cargo vessels. The U.S. Geological Survey (USGS), in cooperation with the U.S. Army Corps of Engineers, monitored stage, discharge, and (or) water temperature and salinity at 26 continuous data collection sites in the St. Johns River...
Authors
Jennifer N. Carson, Matthew T. Benacquisto