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A video monitoring and computational system for estimating migratory juvenile fish abundance in river systems A video monitoring and computational system for estimating migratory juvenile fish abundance in river systems
Diadromous fishes migrate between marine and fresh waters for reproduction. For anadromous species, which spawn in freshwater, improved access to freshwater spawning and nursery habitats and ability of juveniles to emigrate to the ocean may support population recovery. Despite the potentially enormous influence of early life stage survival on adult population size, managers and...
Authors
Meghna N. Marjadi, Sidney Batchelder, Ryan Govostes, Allison H. Roy, John J. Sheppard, Meghan-Grace Slocombe, Joel K. Llopiz
Assessing bridges, culverts, and tunnels for bat presence and use Assessing bridges, culverts, and tunnels for bat presence and use
No abstract available.
Authors
Andrea Nichole Schuhmann, Bethany R. Straw, Frank Tousley, Haley Price, Katrina M. Morris, Laci Pattavina, Robin McWilliams, Brian E. Reichert
Effects of insecticide spray drift on arthropod prey resources of birds in grasslands in Minnesota Effects of insecticide spray drift on arthropod prey resources of birds in grasslands in Minnesota
Soybean aphid (Aphis glycines) insecticides are used throughout the Upper Midwest and Great Plains regions of North America, including the farmland region of Minnesota, USA, to combat insect pests. These broad-spectrum, foliar spray insecticides have the potential to drift beyond target fields into nearby grassland cover where birds and other insectivores forage. Arthropods serve...
Authors
Katelin M. Goebel, David E. Andersen, Pamela J. Rice, Nicole M. Davros
Annual review 2023: Critical minerals Annual review 2023: Critical minerals
No abstract available.
Authors
Graham W. Lederer, James V. Jones, Darcy McPhee, Jeffrey L. Mauk, Robert R. Seal,, Kate M. Campbell, Jane M. Hammarstrom, Paul A. Bedrosian, Patricia Grace Macqueen, Garth E. Graham, Federico Solano, George N.D. Case, David George Pineault
Land use and dog park associations with Escherichia coli in the Chattahoochee River National Recreation Area watershed Land use and dog park associations with Escherichia coli in the Chattahoochee River National Recreation Area watershed
A recent study in the Chattahoochee River National Recreation Area (CHAT) indicated that dogs were a primary source of fecal contamination in the Chattahoochee River and that at least some of the contamination in the river was coming from locations outside of CHAT. The study herein sought to determine if dog parks in the CHAT watershed were sources of dog fecal contamination in streams...
Authors
A.M. McKee, Ann M. Couch
Abundance of Long-billed Curlews on military lands in the Columbia Basin Abundance of Long-billed Curlews on military lands in the Columbia Basin
Long-billed Curlews (Numenius americanus) are declining throughout North America, and the loss of grassland breeding habitat is one of the primary threats to the species. Intermountain West, in particular, has been identified as the most important region in North America for breeding curlews. Nevertheless, the density and abundance of Long-billed Curlews in this region is not well...
Authors
Sharon A. Poessel, Elise Elliott-Smith, Sean M. Murphy, Susan M Haig, Adam E. Duerr, Todd E. Katzner
Revisiting geophysical interpretations of the Midcontinent Rift below Lake Superior— Insights from GLIMPCE seismic-reflection line C Revisiting geophysical interpretations of the Midcontinent Rift below Lake Superior— Insights from GLIMPCE seismic-reflection line C
The 1.1 Ga Midcontinent Rift System (MRS) has been investigated in the Lake Superior region for more than a century. The most influential geophysical data for modern paradigms has come from seismic-reflection profiles collected by the Great Lakes International Multidisciplinary Program on Crustal Evolution (GLIMPCE) in the late 1980s. We are revisiting seismic-reflection GLIMPCE line C...
Authors
V. J. S. Grauch, Samuel J. Heller, Laurel G. Woodruff, Esther K. Stewart
Patterns of bull trout Salvelinus confluentus demography, life history, abundance, and trends in the North Fork Lewis River— 2023 Annual report Patterns of bull trout Salvelinus confluentus demography, life history, abundance, and trends in the North Fork Lewis River— 2023 Annual report
No abstract available.
Authors
Robert Al-Chokhachy, Jeremiah Doyle, Jason Shappart, Brice Adams
Why do seismic hazard models worldwide appear to overpredict historical intensity observations? Why do seismic hazard models worldwide appear to overpredict historical intensity observations?
Probabilistic seismic hazard assessments (PSHAs) provide the scientific basis for building codes to reduce damage from earthquakes. Despite their substantial impact, little is known about how well PSHA predicts actual shaking. Recent PSHA for California, Japan, Italy, Nepal, and France appear to consistently overpredict historically observed earthquake shaking intensities. Numerical...
Authors
Leah Marschall Salditch, Molly M. Gallahue, Seth Stein, James S. Neely, Norman A. Abrahamson, Susan E. Hough
Evaluation of chronic effects of potassium chloride and nickel on survival, growth, and reproduction of a unionid mussel (Lampsilis siliquoidea) Evaluation of chronic effects of potassium chloride and nickel on survival, growth, and reproduction of a unionid mussel (Lampsilis siliquoidea)
The ASTM International standard test method for freshwater mussels (E2455‐13) recommends 4‐week toxicity testing with juveniles to evaluate chronic effects on survival and growth. However, concerns remain that the method may not adequately address the sensitivity of mussels to longer term exposures (>4 weeks), particularly in relation to potential reproductive impairments. No standard...
Authors
Ning Wang, James L. Kunz, Danielle M. Cleveland, Rebecca A. Dorman, Jeffery A. Steevens, Sandy Raimondo, Tom Augspurger, M. Christopher Barnhart
Regional seismic velocity model for the U.S. Atlantic and Gulf Coastal Plains based on measured shear wave velocity, sediment thickness, and surface geology Regional seismic velocity model for the U.S. Atlantic and Gulf Coastal Plains based on measured shear wave velocity, sediment thickness, and surface geology
The Atlantic and Gulf Coastal Plains (CPs) are characterized by widespread accumulations of low-velocity sediments and sedimentary rock that overlay high-velocity bedrock. Geology and sediment thickness greatly influence seismic wave propagation, but current regional ground motion amplification and seismic hazard models include limited characterization of these site conditions. In this...
Authors
Cassie Gann-Phillips, Ashly Cabas, Chunyang Ji, Chris H. Cramer, James Kaklamanos, Oliver S. Boyd