Defining the Hoek-Brown constant mi for volcanic lithologies
Marlène C. Villeneuve, Michael J. Heap, Lauren N. Schaefer
2022, Conference Paper, Rock mechanics and engineering geology in volcanic fields
The empirical Hoek-Brown failure criterion is a well-known and commonly used failure criterion for both intact rocks and rock masses, especially in geological engineering. The intact criterion is calculated using experimental triaxial compression test results on intact samples while the rock mass criterion modifies the intact strength using quantified measures...
Drivers of habitat quality for a reintroduced elk herd
Braiden A. Quinlan, Jacalyn P. Rosenberger, David M. Kalb, Heather N. Abernathy, Emily D. Thorne, W. Mark Ford, Michael J. Cherry
2022, Scientific Reports (12)
Understanding spatiotemporal variation in habitat quality is essential for guiding wildlife reintroduction and restoration programs. The habitat productivity hypothesis posits that home range size is inversely related to habitat quality. Thus, home range size may be used as a proxy for habitat quality and can identify important land cover features...
Optimizing Landsat Next shortwave infrared bands for crop residue characterization
Brian T. Lamb, Phillip Dennison, W. Dean Hively, Raymond F. Kokaly, Guy Serbin, Zhuoting Wu, Philip W. Dabney, Jeffery G. Masek, Michael Campbell, Craig S. T. Daughtry
2022, Remote Sensing (14)
This study focused on optimizing the placement of shortwave infrared (SWIR) bands for pixel-level estimation of fractional crop residue cover (fR) for the upcoming Landsat Next mission. We applied an iterative wavelength shift approach to a database of crop residue field spectra collected in Beltsville, Maryland, USA (n =...
Zinc on the edge—Isotopic and geophysical evidence that cratonic edges control world-class shale-hosted zinc-lead deposits
David L. Huston, David C. Champion, Karol Czarnota, Jingming Duan, Matthew Hutchens, Suzanne Paradis, Mark Hoggard, Bryant Ware, George M. Gibson, Michael P. Doublier, Karen D. Kelley, Anne E. McCafferty, Nathan Hayward, Fred Richards, Svetlana Tessalina, Graham Carr
2022, Mineralium Deposita (58) 707-729
The North Australian Zinc Belt is the largest zinc-lead province in the world, containing three of the ten largest known individual deposits (HYC, Hilton-George Fisher, and Mount Isa). The Northern Cordillera in North America is the second largest zinc-lead province, containing a further two of the world’s top ten deposits...
Can we avert an Amazon tipping point? The economic and environmental costs
Onil Banerjee, Martin Cicowiez, Marcia N. Macedo, Ziga Malek, Peter H. Verburg, Sean Goodwin, Renato Vargas, Ludmila Rattis, Kenneth J. Bagstad, Paulo M. Brando, Michael T. Coe, Christopher Neill, Octavio Damiani Marti, Josue Avila Murillo
2022, Environmental Research Letters (17)
The Amazon biome is being pushed by unsustainable economic drivers towards an ecological tipping point where restoration to its previous state may no longer be possible. This degradation is the result of self-reinforcing interactions between deforestation, climate change and fire. We assess the economic, natural capital and...
Appendix 7: Application of joint dynamic species distribution models to at-sea survey data for seabirds in the Bering Strait and Chukchi Sea
Mayumi L. Arimitsu, Kathy Kuletz
2022, Report, Marine bird distribution and abundance in offshore waters
Mitigating risk to migratory birds from energy development requires information on the distribution and abundance of seabirds in offshore waters. Seabirds are highly mobile, with species-specific seasonal migrations that result in variable patterns of distribution in space and time. In remote offshore marine areas, obtaining useful and current information on...
Supplemental vegetation monitoring plots at Little Bighorn Battlefield National Monument to accelerate learning of the Annual Brome Adaptive Management (ABAM) model
Amy Symstad, Steven Bekedam
2022, Report
The Annual Brome Adaptive Management (ABAM) project is a consortium of seven parks in the Northern Great Plains (NGP) working together to better understand how to control invasive annual grasses (including Bromus species) through an adaptive management approach. This approach is supported by a quantitative model that uses current data...
Fort Laramie National Historic Site 2022 ABAM Investigator Annual Report
Amy Symstad
2022, Report
The Annual Brome Adaptive Management (ABAM) project is a consortium of seven parks in the Northern Great Plains working together to better understand how to control invasive annual grasses (including Bromus species) through an adaptive management approach. This approach is supported by a quantitative model that uses current data from...
Supplemental vegetation monitoring plots at Wind Cave National Park to accelerate learning of the Annual Brome Adaptive Management (ABAM) model
Amy Symstad, Timm Richardson
2022, Report
The Annual Brome Adaptive Management (ABAM) project is a consortium of seven parks in the Northern Great Plains (NGP) working together to better understand how to control invasive annual grasses (including Bromus species) through an adaptive management approach. This approach is supported by a quantitative model that uses current data...
PHREEQ-N-AMDTreat+REYs water-quality modeling tools to evaluate acid mine drainage treatment strategies for recovery of rare-earth elements
Charles A. Cravotta III
2022, Conference Paper, Proceedings of the 12th International Conference on Acid Mine Drainage
The PHREEQ-N-AMDTreat+REYs water-quality modeling tools have the fundamental capability to simulate aqueous chemical reactions and predict the formation of metal-rich solids during the treatment of acid mine drainage (AMD). These new user-friendly, publicly available tools were expanded from the PHREEQ-N-AMDTreat tools to include the precipitation of rare-earth elements plus yttrium (REYs)...
Understory structure and heterospecifics influence the occupancy of a ground-nesting species of conservation concern, the Canada Warbler
Gordon W. Dimmig, Christopher T. Rota, Petra B. Wood, Christopher M. Lituma
2022, Avian Conservation and Ecology (17)
Forest structure and composition in eastern U.S. forests are changing because of forest regeneration after farmland abandonment, less frequent occurrence of severe disturbances, and climate change. Some of these changes may disproportionally affect birds that rely on gap dynamics or other forest canopy disturbances to create understory habitat. The Canada...
Determination and prediction of rare earth element eeochemical associations in acid mine drainage treatment wastes
B.C. Hedin, Charles A. Cravotta III, M.Y. Stuckman, C.L. Lopano, R.C. Capo, R.S. Hedin
2022, Conference Paper, Proceedings of the 12th International Conference on Acid Rock Drainage
Acid mine drainage (AMD) has been proposed by various researchers as a novel source of rare earth elements (REE), a group of elements that include critical metals for clean energy and modern technologies. REE tend to be sequestered in the Fe-Al-Mn-rich solids produced during the treatment of AMD. These solids...
Geologic setting and geomorphic history of La Botica and surrounding area
Kenzie J. Turner, Chester A. Ruleman, Shannon A. Mahan
2022, Research Contributions 115
La Botica is located on the gently east-dipping marginal area between the high San Juan Mountains to the west and the San Luis Basin to the east in south-central Colorado. The site is positioned on a topographic bench perched about 70 to 80 m above La Jara Creek (figure 2.1),...
Supplemental vegetation monitoring plots at Badlands National Park to accelerate learning of the Annual Brome Adaptive Management (ABAM) model
Amy Symstad
2022, Report
The annual Brome Adaptive Management (ABAM) project is a consortium of seven parks in the Northern Great Plains working together to better understand how to control invasive annual grasses (including Bromus species) through an adaptive management approach. This approach is supported by a quantitative model that uses current data from...
Osmoregulation and acid-base balance.
Stephen D. McCormick, Eric T. Schultz, Colin Brauner
2022, Book chapter, Methods for fish biology
Maintaining relatively constant levels of internal cellular ions is critical to the normal function of all animals. For many organisms this is achieved primarily by regulating the ion and acid-base composition of the blood within narrow limits. This understanding of the importance of “le milieu interior,” first espoused by Claude...
Modeling risk dynamics of contaminants of emerging concern in a temperate-region wastewater effluent-dominated stream
Hui Zhi, Danielle T. Webb, Jerald L Schnoor, Dana W. Kolpin, Rebecca D. Klaper, Luke Iwanowicz, Gregory H. LeFevre
2022, Environmental Science: Water Research & Technology (8) 1408-1422
Wastewater effluent-dominated streams are becoming increasingly common worldwide, including in temperate regions, with potential impacts on ecological systems and drinking water sources. We recently quantified the occurrence/spatiotemporal dynamics of pharmaceutical mixtures in a representative temperate-region wastewater effluent-dominated stream (Muddy Creek, Iowa) under baseflow conditions and characterized relevant fate processes. Herein,...
Atmospheric circulation drivers of extreme high water level events at Foggy Island Bay, Alaska
Peter A. Bieniek, Li H. Erikson, Jeremy L. Kasper
2022, Atmosphere (13)
The northern coast of Alaska is experiencing significant climatic change enhancing hazards from reduced sea ice and increased coastal erosion. This same region is home to offshore oil/gas activities. Foggy Island Bay is one region along the Beaufort Sea coast with planned offshore oil/gas development that will need to account...
OpenET: Filling a critical data gap in water management for the western United States
Forrest Melton, Justin Huntington, Robyn Grimm, Jamie Herring, Maurice Hall, Dana Rollison, Tyler Erickson, Richard Allen, Martha Anderson, Joshua Fisher, Ayse Kilic, Gabriel B. Senay, J. M. Volk, Christopher Hain, Lee Johnson, Anderson Ruhoff, Philip Blankenau, Matthew Bromley, Will Carrara, Britta Daudert, Conor Doherty, Christian Dunkerly, MacKenzie Friedrichs, Alberto Guzman, Gregory Halverson, Jody Hansen, Jordan Harding, Yanghui Kang, David C. Ketchum, Blake Minor, Charles Morton, Samuel Ortega-Salazar, Thomas Ott, Mutlu Ozdogan, Peter Revelle, Mitch Schull, Carlos Wang, Yun Yang, Ray G. Anderson
2022, Journal of the American Water Resources Association (58) 971-994
The lack of consistent, accurate information on evapotranspiration (ET) and consumptive use of water by irrigated agriculture is one of the most important data gaps for water managers in the western United States (U.S.) and other arid agricultural regions globally. The ability to easily access information...
Habitat-specific foraging by striped bass (Morone saxatilis) in the San Francisco Estuary, California: Implications for tidal restoration
Matthew J. Young, Frederick V. Feyrer, Collin D. Smith, Dennis A. Valentine
2022, San Francisco Estuary and Watershed Science (20)
Non-native predatory fish strongly impact aquatic communities, and their impacts can be exacerbated by anthropogenic habitat alterations. Loss of natural habitat and restoration actions reversing habitat loss can modify relationships between non-native predators and prey. Predicting how these relationships will change is...
Endangered Cape Sable seaside sparrow ecology: Actions towards recovery through landscape-scale ecosystem restoration
Allison Benscoter, Stephanie Romanach
2022, Endangered Species Research (49) 199-215
Understanding the ecology of endangered taxa and the factors affecting their population growth and decline is imperative for their recovery. In the southeastern USA, the Everglades wetland ecosystem supports a high diversity of species and communities, including many endemic and imperiled taxa, such as the federally endangered Cape Sable...
Hybrid broadband ground-motion simulation validation of small magnitude active shallow crustal earthquakes in New Zealand
Robin L. Lee, Brendon A. Bradley, Peter J. Stafford, Robert Graves, Adrian Rodriguez-Marek
2022, Earthquake Spectra (38) 2548-2579
This article presents a comprehensive validation of the hybrid broadband ground-motion simulation approach (via the commonly used Graves and Pitarka method) in a New Zealand context with small magnitude point source ruptures using an extensive set of 5218 ground motions recorded at 212 sites from 479 active shallow crustal earthquakes...
The influence of drying on the aeolian transport of river-sourced sand
Joel B. Sankey, Joshua Caster, Alan Kasprak, Helen C. Fairley
2022, Journal of Geophysical Research Earth Surface (127)
Transgression and regression of water levels (stages) have impacted the evolution of aeolian landforms and sedimentary deposits throughout geologic history. We studied this phenomenon over a five-day period of reduced flow on the Colorado River in Grand Canyon National Park, AZ, USA, in March 2021. These transient low flows exposed...
Defining biologically relevant and hierarchically nested population units to inform wildlife management
Michael S. O’Donnell, David R. Edmunds, Cameron L. Aldridge, Julie A. Heinrichs, Adrian P. Monroe, Peter S. Coates, Brian G. Prochazka, Steve E. Hanser, Lief A. Wiechman
2022, Ecology and Evolution (12)
Wildlife populations are increasingly affected by natural and anthropogenic changes that negatively alter biotic and abiotic processes at multiple spatiotemporal scales and therefore require increased wildlife management and conservation efforts. However, wildlife management boundaries frequently lack biological context and mechanisms to assess demographic data across the...
Validation of a portable eDNA detection kit for invasive carps
Stacie A. Kageyama, Matthew Regh Hoogland, Tariq Tajjioui, Theresa M. Schreier, Richard A. Erickson, Christopher M. Merkes
2022, Fishes (7)
Loop-mediated isothermal amplification (LAMP) is a rapid molecular detection technique that has been used as a diagnostic tool for detecting human and animal pathogens for over 20 years and is promising for detecting environmental DNA shed by invasive species. We designed a LAMP assay to detect the invasive carps,...
Demographic effects of a megafire on a declining prairie grouse in the mixed-grass prairie
Nicholas J. Parke, Daniel S. Sullin, David A. Haukos, Kent A. Fricke, Christian A. Hagen, Adam A. Ahlers
2022, Ecology and Evolution (12)
Recent studies have documented benefits of small, prescribed fire and wildfire for grassland-dependent wildlife, such as lesser prairie-chickens (Tympanuchus pallidicintus), but wildlife demographic response to the scale and intensity of megafire (wildfire >40,000 ha) in modern, fragmented grasslands remains unknown. Limited available grassland habitat makes it imperative to understand if increasing...
