Greenhouse gas emissions from an arid-zone reservoir and their environmental policy significance: Results from existing global models and an exploratory dataset
Sarah Waldo, Bridget R. Deemer, Lucas S. Bair, Jake J. Beaulieu
2021, Environmental Science and Policy (120) 53-62
Reservoirs in arid regions often provide critical water storage but little is known about their greenhouse gas (GHG) footprint. While there is growing appreciation of the role reservoirs play as GHG sources, there is a lack of understanding of GHG emission dynamics from reservoirs in...
Extent, configuration and diversity of burned and forested areas predict bat richness in a fire-maintained forest
R. V. Blakey, Elisabeth B. Webb, D. C. Kesler, R. B. Siegel, D. Corcoran, J. S. Cole, Matthew Johnson
2021, Landscape Ecology (36) 1101-1115
ContextFire transforms, fragments and sometimes maintains forests, creating mosaics of burned and unburned patches. Highly mobile animals respond to resources in the landscape at a variety of spatial scales, yet we know little about their landscape-scale relationships with fire.ObjectivesWe aimed to identify drivers of bat richness...
Evidence of economical territory selection in a cooperative carnivore
Sarah N. Sells, Michael S. Mitchell, Kevin M. Podruzny, Justin A. Gude, Allison Keever, Diane K. Boyd, T.D. Smucker, Abigail A. Nelson, Tyler W. Parks, Nathan J. Lance, Michael S. Ross, Robert M. Inman
2021, Proceedings of the Royal Society B: Biological Sciences (288)
As an outcome of natural selection, animals are probably adapted to select territories economically by maximizing benefits and minimizing costs of territory ownership. Theory and empirical precedent indicate that a primary benefit of many territories is exclusive access to food resources, and primary costs of defending and using space are...
Preconditioning by sediment accumulation can produce powerful turbidity currents without major external triggers
Lewis Bailey, Michael Clare, Kurt J. Rosenberger, Matthieu J.B. Cartigny, Peter J. Talling, Charles K. Paull, Roberto Gwiazda, Daniel Parsons, Stephen Simmons, Jingping Xu, Ivan Haigh, Katherine L. Maier, Mary McGann, Eve M. Lundsten
2021, Earth and Planetary Science Letters (562)
Turbidity currents dominate sediment transfer into the deep ocean, and can damage critical seabed infrastructure. It is commonly inferred that powerful turbidity currents are triggered by major external events, such as storms, river floods, or earthquakes. However, basic models for turbidity current...
Organic petrographic evaluation of carbonaceous material in sediments of the Kinnickinnic River, Milwaukee, WI, U.S.A.
Brett J. Valentine, John H Krahling, Stephen D. Mueller
2021, Science of the Total Environment (782)
This study examines the use of organic petrology techniques to quantify the amount of coal and carbonaceous combustion by-products (i.e., coke, coal tar/pitch, cenospheres) in sediments taken from the Kinnickinnic River adjacent to the former site of the Milwaukee Solvay Coke and Gas Company....
Causes of delayed outbreak responses and their impacts on epidemic spread
Y Tao, William J. M. Probert, Katriona Shea, Michael C. Runge, Kevin D. Lafferty, Michael J. Tildesley, Matthew J. Ferrari
2021, Journal of the Royal Society Interface (18)
Livestock diseases have devastating consequences economically, socially and politically across the globe. In certain systems, pathogens remain viable after host death, which enables residual transmissions from infected carcasses. Rapid culling and carcass disposal are well-established strategies for stamping out an outbreak and limiting its impact; however, wait-times...
Weather and distance to fire refugia limit landscape‐level occurrence of fungal disease in an exotic annual grass
Cara Applestein, Allison Barbara Simler-Williamson, Matthew J. Germino
2021, Journal of Ecology (109) 2247-2260
The enemy release hypothesis proposes that invasion by exotic plant species is driven by their release from natural enemies (i.e. herbivores and pathogens) in their introduced ranges. However, in many cases, natural enemies, which may be introduced or managed to regulate invasive species, may fail to impact target host...
Groundwater management process simulations using an updated version of the three-dimensional numerical model of groundwater flow in northern Utah Valley, Utah County, Utah
Bernard J. Stolp, Lynette E. Brooks
2021, Scientific Investigations Report 2021-5010
Groundwater is a primary source of drinking water in northern Utah County. The groundwater system is recharged mainly from precipitation in the adjacent Wasatch Mountains and infiltration of streamflow. In 2004, groundwater withdrawals were estimated to be roughly 44,500 acre-feet per year. In 2016, groundwater withdrawals were estimated to be...
Ecology of an isolated muskrat population during regional population declines
Laken S. Ganoe, Matt J. Lovallo, Justin D. Brown, W. David Walter
2021, Northeastern Naturalist (28) 49-64
Evidence indicating a decline in muskrat populations in the United States during the past 40 years has led to speculation regarding factors influencing muskrat survival. In order to understand population dynamics and survival, it is important to first define the ecology of local populations. We investigated the dwelling structure use,...
Paragenesis of an orogenic gold deposit: New insights on mineralizing processes at the Grass Valley District, California
Ryan D. Taylor, Thomas Monecke, T. James Reynolds, Jochen Monecke
2021, Economic Geology (116) 323-356
The Grass Valley orogenic gold district in the Sierra Nevada foothills province, central California, is the largest historical gold producer of the North American Cordillera. Gold mineralization is associated with shallowly dipping north-south veins hosted by the 160 Ma Grass Valley granodiorite to the southwest of the Grass Valley fault...
Cloud water interception in Hawai‘i: Developing capacity to characterize the spatial patterns and effects on water and ecological processes responses in Hawai‘i
Han Tseng, Lucas Berio Fortini, Alan Mair, Aurora Kagawa-Viviani, Stephanie G. Yelenik, Yoshiyuki Miyazawa, Michael A Nullet, Joseph Kennedy, John DeLay, Christina Leopold, Thomas Giambelluca
2021, Report, Pacific Island Climate Adaptation Science Center Final Technical Report
Cloud-water interception (CWI) is the process by which fog or cloud water droplets are captured and accumulate on the leaves and branches of plants, some of which drips to the ground. Prior studies in Hawai'i indicate that CWI is highly variable and can contribute substantially to total precipitation. In this...
Characterization of deep-sea coral and sponge communities in Greater Farallones National Marine Sanctuary: Point Arena South Essential Fish Habitat Conservation Area and New Amendment 28 Areas
Kaitlin Graiff, Jan Roletto, Sage Tezak, Gary E. Williams, Guy R. Cochrane
2021, Report
This report summarizes samples collected during a remotely operated vehicle (ROV) cruise conducted in October 2019 on board E/V Nautilus. Areas sampled in Greater Farallones National Marine Sanctuary included areas proposed for fisheries management zoning in the Point Arena South (PAS) Essential Fish Habitat Conservation Area (EFH). Dive planning targeted...
Avoidance of cold-, cool-, and warm-water fishes to Zequanox® exposure
Matthew T. Barbour, James A. Luoma, Todd J. Severson, Jeremy K. Wise, Barbara Bennie
2021, Management of Biological Invasions (12) 96-107
Zequanox® is a biopesticide registered by the U.S. Environmental Protection Agency (USEPA) and the Canadian Pest Management Regulatory Agency for controlling dreissenid mussels with demonstrated selective toxicity. However, some research has indicated that Zequanox may impact the body condition and survival of some non-target species. We assessed avoidance behaviors of...
The influence of species life history and distribution characteristics on species responses to habitat fragmentation in an urban landscape
Staci M. Amburgey, David A. W. Miller, Carlton J. Rochester, Katy S. Delaney, Seth P. D. Riley, Cheryl S. Brehme, Stacie A. Hathaway, Robert N. Fisher
2021, Journal of Animal Ecology (90) 685-697
Fragmentation within urbanized environments often leads to a loss of native species diversity; however, variation exists in responses among-species and among-populations within species.We aimed to identify patterns in species biogeography in an urbanized landscape to understand anthropogenic effects on vertebrate communities and identify species that are more sensitive or...
Eocene magma plumbing system beneath Cortez Hills Carlin-type gold deposit, Nevada: Is there a deep-seated pluton?
Celestine N. Mercer
2021, Economic Geology (116) 501-513
The magmatic-hydrothermal conceptual model for Carlin-type gold deposit genesis calls upon deep-seated Eocene plutons as the primary source of gold-bearing fluids. However, geophysical surveys, geologic mapping, drilling, geochronology, isotopic tracers, and fluid inclusion chemistry have returned ambiguous evidence for the existence of such plutons. The...
Preface to the Focus Section on the 2020 Intermountain West earthquakes
Ryan D. Gold, Jayne Bormann, Keith D. Koper
2021, Seismological Research Letters (92)
The Intermountain West region of the United States extends from the eastern margin of the Sierra Nevada and Cascade Mountains in the west to the Rocky Mountains in the east. The region is characterized by dextral shear along the eastern margin of the Sierra Nevada and nearly east-west extension in...
Unmixing multiple metamorphic muscovite age populations with powder X-ray diffraction and 40Ar/39Ar analysis
Ryan J. McAleer, David Bish, Michael J. Kunk, Peter M. Valley, Gregory J. Walsh, Robert Wintsch
2021, American Journal of Science (321) 332-364
A combination of modal estimates from powder X-ray diffraction (XRD) experiments and argon isotopic data shows that muscovite 40Ar/39Ar total gas age correlates with muscovite composition near the retrograde Bald Mountain shear zone (BMSZ) in Claremont, New Hampshire, and that the shear zone was active at ∼245...
The genetic composition of wild recruits in a recovering lake trout population in Lake Michigan
Wesley A. Larson, Matthew S. Kornis, Keith N. Turnquist, Charles R. Bronte, Mark E. Holey, S. Dale Hanson, Theodore J. Treska, Wendylee Stott
2021, Canadian Journal of Fisheries and Aquatic Sciences (78) 286-300
Strain performance evaluations are vital for developing successful fishery management and restoration strategies. Here, we utilized genotypes from 36 microsatellites to investigate hatchery strain contribution to collections of naturally produced lake trout (Salvelinus namaycush) sampled across Lake Michigan. Strain composition varied by area, with recoveries of Seneca Lake strain exceeding...
Contrasting patterns of demography and population viability among gopher tortoise (Gopherus polyphemus) populations at the species’ northern range edge
Brian Folt, J.M. Goessling, A. M. Tucker, C. Guyer, S. Herman, E. Shelton-Nix, Conor P. McGowan
2021, Journal of Wildlife Management (85) 617-630
Population viability analyses are useful tools to predict abundance and extinction risk for imperiled species. In southeastern North America, the federally threatened gopher tortoise (Gopherus polyphemus) is a keystone species in the diverse and imperiled longleaf pine (Pinus palustris) ecosystem, and researchers have suggested that tortoise populations are declining and...
Waif gopher tortoise survival and site fidelity following translocation
R.K. McKee, K.A. Buhlmann, Clinton T. Moore, J. Hepinstall-Cymerman, T.D. Tuberville
2021, Journal of Wildlife Management (85) 640-653
Gopher tortoises (Gopherus polyphemus) are among the most commonly translocated reptiles. Waif tortoises are animals frequently of unknown origin that have been displaced from the wild and often held in human possession for various reasons and durations. Although there are risks associated with any translocation, waif tortoises are generally excluded...
2021 Computational Infrastructure for Geodynamics Developers Workshop
Brad T. Aagaard, Jed Brown, Catherin Cooper, Rene Gassmoeller, Lorraine Hwang, Marc Spiegelman
2021, Conference Paper
The CIG Developers Workshop resulted in a number of recommendations that we think will help expand the CIG developer community, make software more accessible to new users, and increase developer productivity through use of common infrastructure and best practices for software development. This includes building a broad user base with...
U–Pb zircon eruption age of the Old Crow tephra and review of extant age constraints
Seth D. Burgess, Jorge A. Vazquez, Christopher F. Waythomas, Kristi L. Wallace
2021, Quaternary Geochronology (66)
Eruption of the Old Crow tephra deposited ~200 km3 of volcanic ash throughout Alaska and the northwestern Yukon (eastern Beringia), providing an isochronous marker across the region on a scale unique in the Pleistocene. The Old Crow tephra represents a critical temporal piercing point used...
The influence of land cover and storm magnitude on hydrologic flowpath activation and runoff generation in steep tropical catchments of central Panama
Andrew L. Birch, Robert Stallard, Sidney A. Bush, Holly R. Barnard
2021, Journal of Hydrology (596)
Despite abundant research documenting that land use/land cover (LULC) have substantial impacts on the hydrology of humid tropical systems, field-based evidence for the physical mechanisms behind these impacts are still lacking. In particular, our understanding of the hydrologic flowpaths that generate runoff in these...
Nitrogen and phosphorus sources and delivery from the Mississippi/Atchafalaya River Basin: An update using 2012 SPARROW models
Dale M. Robertson, David A. Saad
2021, Journal of the American Water Resources Association (57) 406-429
Nitrogen (N) and phosphorus (P) inputs throughout the Mississippi/Atchafalaya River Basin (MARB) have been linked to the Gulf of Mexico hypoxia and water‐quality problems throughout the MARB. To describe N and P loading throughout the MARB, SPAtially Referenced Regression On Watershed attributes (SPARROW) models were previously...
Analytical validation of two RT-qPCR tests and detection of spring viremia of carp virus (SVCV) in persistently infected koi Cyprinus carpio
Sharon C Clouthier, Tamara Schroeder, Emma K Bueren, Eric D. Anderson, Eveline Emmenegger
2021, Diseases of Aquatic Organisms (143) 169-188
Spring viremia of carp virus (SVCV) ia a carp sprivivirus and a member of the genus Sprivivirus within the family Rhabdoviridae. The virus is the etiological agent of spring viremia of carp, a disease of cyprinid species including koi Cyprinus carpio L. and notifiable to the World Organisation for Animal Health. The goal of this...
