Using DC resistivity ring array surveys to resolve conductive structures around tunnels or mine-workings
Michael Albert Mitchell, Douglas W. Oldenburg
2023, Journal of Applied Geophysics (211)
In underground environments, conventional direct current (DC) resistivity surveys with a single linear array of electrodes produce fundamentally non-unique inversions. These non-uniqueness and model resolution issues stem from limitations placed on the location of transmitters (TXs) and receivers (RXs) by the geometry of existing tunnels and boreholes. Poor excitation...
Gene expression reveals immune response strategies of naïve Hawaiian honeycreepers experimentally infected with introduced avian malaria
Kristina L. Paxton, Loren Cassin-Sackett, Carter T. Atkinson, Elin Videvall, Michael G. Campana, Robert C. Fleischer
2023, Journal of Heredity (114) 326-340
The unprecedented rise in the number of new and emerging infectious diseases in the last quarter century poses direct threats to human and wildlife health. The introduction to the Hawaiian archipelago of Plasmodium relictum and the mosquito vector that transmits the parasite has led to dramatic losses in endemic Hawaiian forest bird...
Ecological significance of Wild Huckleberries (Vaccinium membranaceum)
Janene Lichtenberg, Tabitha A. Graves
Nesibe E. Kafkas, Huseyin Celik, editor(s)
2023, Book chapter, Edible berries - New insights
Wild huckleberry (Vaccinium globare/membranaceum complex) is a keystone species in the Pacific Northwest of the United States. The fruits are a primary food source for grizzly bears and other wildlife, as well as an important traditional and contemporary human food. Huckleberry shrubs also provide cover and nesting habitat for many animal...
A river basin spatial model to quantitively advance understanding of riverine tree response dynamics to water availability and hydrological management
Tanya M. Doody, Sicong Gao, Willem Vervoot, Jodie Pritchard, Michah Davies, Martin Nolan, Pamela L. Nagler
2023, The Journal of Environmental Management (332)
Ecological condition continues to decline in arid and semi-arid river basins globally due to hydrological over-abstraction combined with changing climatic conditions. Whilst provision of water for the environment has been a primary approach to alleviate ecological decline, how to accurately monitor changes in riverine...
Efficacy of florfenicol and oxytetracycline administered in feed to control cisco mortality associated with Aeromonas salmonicida infections
Aaron R. Cupp, Maren T. Tuttle-Lau, Eric Leis, Samantha L. Wolfe, Justin Smerud, John W. Oliver, Richard A. Erickson, Austin Hannah, Aaron Johnson, Rachel Grace Nelson, Isaac Standish, Joel Wils, Mark P. Gaikowski
2023, North American Journal of Aquaculture (85) 156-165
Two medications (one with florfenicol and one with oxytetracycline) that are approved in the United States to control mortality due to furunculosis associated with Aeromonas salmonicida were assessed to determine their efficacy in medicated feeds to treat A. salmonicida-infected Cisco (also known as Lake Herring) Coregonus artedi. Cisco were subjected to static infection...
User’s Guide to planetary image analysis and geologic mapping in ArcGIS Pro
Sarah R. Black
2023, Techniques and Methods 11-B14
Geologic maps are valuable tools in planetary science. Though planetary geologic maps are similar to terrestrial (Earthbased) geologic maps, the nature of planetary exploration introduces unique challenges for geologic mappers. Terrestrial geologic mappers prepare products from field-based observation, often comparing or refining those with aerial and (or) orbital images. Planetary...
Dissolved organic matter transformations in a freshwater rivermouth
Nolan J.T. Pearce, James H. Larson, Mary Anne Evans, Sean Bailey, Paul C. Frost, William F. James, Marguerite A. Xenopoulos
2023, Biogeochemistry (163) 245-263
River-to-lake transitional areas are biogeochemically active ecosystems that can alter the amount and composition of dissolved organic matter (DOM) as it moves through the aquatic continuum. However, few studies have directly measured carbon processing and assessed the carbon budget of freshwater rivermouths. We compiled measurements of...
Climate change and maple syrup: Producer observations, perceptions, knowledge, and adaptation strategies
Selena Ahmed, David A. Lutz, T Joshua Rapp, Ryan H. Huish, Boris Dufour, Autumn Brunelle, Toni Lyn Morelli, Kristina A. Stinson, Teresa Warne
2023, Frontiers in Forests and Global Change (6)
Introduction: Climate change is impacting forest-based agricultural systems with implications for producer decision-making and livelihoods. This article presents a case study on the observations, perceptions, knowledge, and adaptation strategies of maple syrup producers in the United States to climate change.Methods: We carried out two semi-structured surveys with maple producers on:...
The relative stability of planktic foraminifer thermal preferences over the past 3 million years
Harry J. Dowsett, Marci M. Robinson, Kevin M. Foley, Timothy D. Herbert, Steve Hunter, Carin Andersson, Whittney Spivey
2023, Geosciences (13)
Stationarity of species’ ecological tolerances is a first-order assumption of paleoenvironmental reconstruction based upon analog methods. To test this and other assumptions used in quantitative analysis of foraminiferal faunas for paleoceanographic reconstruction, we analyzed paired alkenone unsaturation ratio (U37K′) "><span id="MathJax-Span-3"...
Soil surface treatments and precipitation timing determine seedling development across southwestern US restoration sites
Hannah Lucia Farrell, Seth M. Munson, Bradley J. Butterfield, Michael C. Duniway, Aksasha M Faist, Elise S Gornish, Caroline Havrilla, Loralee Larios, Sasha C. Reed, Helen I Rowe, Katherine M. Laushman, Molly L. McCormick
2023, Ecological Applications (33)
Restoration in dryland ecosystems often has poor success due to low and variable water availability, degraded soil conditions, and slow plant community recovery rates. Restoration treatments can mitigate these constraints but, because treatments and subsequent monitoring are typically limited in space and time, our...
Sustainable aquifer management for food security
Bryana Funk, Saud A. Amer, Frank A. Ward
2023, Agricultural Systems Journal (281)
In aquifer-dependent regions, balancing aquifer protection, desalination, economic development, agricultural irrigation, and food security can be better managed through discovery and development of sources of sustainable groundwater pumping. Aquifer desalination for irrigation to protect food security can mitigate pressure on local...
Increased whitebark pine (Pinus albicaulis) growth and defense under a warmer and regionally drier climate
Nicholas E. Kichas, Gregory T. Pederson, Sharon M. Hood, Richard G. Everett, David B. McWethy
2023, Frontiers in Forests and Global Change (6)
Introduction: Tree defense characteristics play a crucial role in modulating conifer bark beetle interactions, and there is a growing body of literature investigating factors mediating tree growth and resin-based defenses in conifers. A subset of studies have looked at relationships between tree growth, resin duct morphology and climate; however, these...
Simulation of monthly mean and monthly base flow of streamflow using random forests for the Mississippi River Alluvial Plain, 1901 to 2018
Benjamin J. Dietsch, William H. Asquith, Brian Breaker, Stephen M. Westenbroek, Wade H. Kress
2023, Scientific Investigations Report 2022-5079
Improved simulations of streamflow and base flow for selected sites within and adjacent to the Mississippi River Alluvial Plain area are important for modeling groundwater flow because surface-water flows have a substantial effect on groundwater levels. One method for simulating streamflow and base flow, random forest (RF) models, was developed...
Improved calculation of hydraulic conductivity for small-disk tension infiltrometers
John R. Nimmo, Paige R. Voss
2023, Water Resources Research (59)
Because tension infiltrometers apply water through a disk of finite size, the infiltrated water moves laterally as well as downward. Only the vertical component of this flow is indicative of the hydraulic conductivity K, so the algorithm for computing K must include a way of isolating that component from the total flow. Some...
Status and trends in the Lake Superior fish community, 2022
Mark Vinson, Daniel L. Yule, Lori M. Evrard, Sydney B Phillips
2023, Report
In 2022, the Lake Superior fish community was sampled with daytime bottom and surface trawls at 71 nearshore locations in May-June and 35 offshore locations in July, and at 51 Coordinated Science and Monitoring Initiative (CSMI) locations in July-October with bottom trawls, surface trawls, mid-water trawls and acoustics that were...
Distribution of northern long-eared bat summer-habitat derived from historical data collected on the Monongahela National Forest, West Virginia, USA
J.L. De La Cruz, W. Mark Ford, S. Beaux Jones, J.R. Johnson, A. Silvis
2023, Journal of the Southeastern Association of Fish and Wildlife Agencies (10) 114-124
Species distribution models enable resource managers to avoid and mitigate impacts to, or enhance habitat of, target species at the landscape level. Persistent declines of northern long-eared bats (Myotis septentrionalis) due to white-nose syndrome have made acquisition of contemporary data difficult. Therefore, use of legacy data may be necessary for creation...
Increased Population Size of the Federally Endangered Ptychobranchus subtentus in the Wolf River, TN (Fentress and Picket Co.)
Jack Fetters, Amanda E. Rosenberger, Kristin Irwin Womble, Anthony Ford, Brittany Bajo
2023, Newsletter
No abstract available....
Central Beaufort Sea Wave and Hydrodynamic Modeling Study; Report 2: Modeled waves, hydrodynamics, and sediment transport within Foggy Island Bay
Li H. Erikson, Cornelis M. Nederhoff, Anita C Engelstad, Jeremy L. Kasper, Peter A. Bieniek
2023, OCS Study BOEM 2022-079
Renewed interest in nearshore oil exploration and production in the shallow waters of the Central Beaufort Sea Shelf has created a need to advance our understanding of the past, current, and future atmospheric and oceanographic conditions that affect existing and planned infrastructure and nearshore ecosystems. At the time of writing...
Graton Pesticides (GRAPE) Study: Exposure potential from groundwater and air in California wine country, results
N. Warwick, J. Sellen, P. Reynolds, Michelle Hladik, Dana W. Kolpin, J. Von Behren, J. Burton
2023, Newsletter
No abstract available....
Using public litigation records to identify priority science needs for managing public lands
Alison C. Foster, Sarah K. Carter, Travis S. Haby, Leigh Espy, Malia K. Barton
2023, Ecology and Society (28)
Relevant science is essential for effective natural resource decision making, including on public lands managed by the United States Department of the Interior (DOI) Bureau of Land Management (BLM), that cover 1/10th of the United States. Most of the BLM’s management decisions require analyses under the National Environmental Policy Act,...
Maximum likelihood estimator and nightly acoustic count values as weight of evidence of bat maternity activity
W. Mark Ford, Emily D. Thorne, Alexander Silvis, Elaine L. Barr, Michael P. Armstrong, R. Andrew King
2023, Journal of the Southeastern Association of Fish and Wildlife Agencies (100) 100-106
Since the spread of white-nose syndrome in North America, several bat species have shown precipitous declines in abundance and distribution. With lower netting detection probabilities for the currently threatened but proposed endangered northern long-eared bat (Myotis septentrionalis) and endangered Indiana bats (Myotis sodalis), determination of presence or absence for regulatory...
Size structure, age, growth, and mortality of flathead catfish in the Robert C. Byrd Pool of the Ohio and Kanawha Rivers
Joseph V Siegel, Stuart A. Welsh, Nate D. Taylor, Quinton Phelps
2023, Journal of the Southeastern Association of Fish and Wildlife Agencies (10) 10-16
Flathead catfish (Pylodictis olivaris) were sampled in the Robert C. Byrd Pool of the Ohio and Kanawha rivers, West Virginia, to inform management decisions based on population characteristics of size structure, age, growth, and mortality. Sampling was conducted with low-frequency boat electrofishing during late May to early June over a four-year...
Influences of water hardness on chronic toxicity of potassium chloride to a unionid mussel (Lampsilis siliquoidea)
Ning Wang, Rebecca A. Dorman, James L. Kunz, Danielle M. Cleveland, Jeffery A. Steevens, Suzanne Dunn, David Martinez
2023, Environmental Toxicology and Chemistry (42) 1085-1093
Elevated concentrations of potassium (K) often occur in effluents from wastewater treatment plants, oil and gas production operations, mineral extraction processes, and from other anthropogenic sources. Previous studies have demonstrated that freshwater mussels are highly sensitive to K in acute and chronic exposures, and acute toxicity of K decreases with...
Identification of seismo-volcanic regimes at Whakaari/White Island (New Zealand) via systematic tuning of an unsupervised classifier
B. Steinke, A.D. Jolly, R. Carniel, D.E. Dempsey, S.J. Cronin
2023, Journal of Geophysical Research B: Solid Earth (128)
We present an algorithm based on Self-Organizing Maps (SOM) and k-means clustering to recognize patterns in a continuous 12.5-year tremor time series recorded at Whakaari/White Island volcano, New Zealand (hereafter referred to as Whakaari). The approach is extendable to a variety of volcanic settings through systematic tuning of the classifier....
Northern Sea Otter (Enhydra lutris kenyoni) population abundance and distribution across the southeast Alaska stock, summer 2022
Paul Schuette, Joseph Michael Eisaguirre, Benjamin P Weitzman, Collin Power, Evan Wetherington, Jenipher Cate, Jamie N. Womble, Linnea Pearson, Daniel Melody, Chelsea Merriman, Kat Hanks, George G. Esslinger
2023, Technical Report 2023-01
In the summer of 2022, the U.S. Fish & Wildlife Service and partners successfully completed the first single-year, aerial photo survey of sea otters across the entire Southeast stock of northern sea otters. This document presents the latest findings from the 2022 Southeast Alaska Sea Otter Survey, providing up-to-date information...
