Distribution and abundance of Westslope Cutthroat Trout in relation to habitat characteristics at multiple spatial scales
John W Heckel, Michael C. Quist, Carson J. Watkins, Andrew M. Dux
2020, North American Journal of Fisheries Management (40) 893-909
The distribution and relative abundance of Westslope Cutthroat Trout (WCT) Oncorhynchus clarkii lewisi in relation to habitat characteristics remain unknown across large portions of the species’ range. The goals of this research were to provide a foundational understanding of WCT distribution and relative abundance related to habitat characteristics in tributaries of the...
Seasonal manganese transport in the hyporheic zone of a snowmelt-dominated river (East River, Colorado)
S. Bryant, A. Sawyer, Martin A. Briggs, C. Saup, A. R Nelson, M. J. Wilkins, J. R. Christensen, K. H. Williams
2020, Hydrogeology Journal (28) 1323-1341
Manganese (Mn) plays a critical role in river-water quality because Mn-oxides serve as sorption sites for contaminant metals. The aim of this study is to understand the seasonal cycling of Mn in an alpine streambed that experiences large spring snowmelt events and the potential responses to changes in snowmelt timing...
Geologic map of the Homestake Reservoir 7.5′ quadrangle, Lake, Pitkin, and Eagle Counties, Colorado
Chester A. Ruleman, Michael G. Frothingham, Theodore R. Brandt, Colin A. Shaw, Marc W. Caffee, Brent M. Goehring, Keith A. Brugger
2020, Scientific Investigations Map 3451
The Homestake Reservoir 7.5' quadrangle lies at the northwestern end of the Upper Arkansas Valley, and headwaters of the Arkansas River, and the Roaring Fork, Fryingpan, and Eagle Rivers of the Colorado River system. The quadrangle lies within tectonic provinces of the 1.4 giga-annum (Ga) Picuris orogeny and includes the...
HESS opinions: Beyond the long-term water balance: Evolving Budyko's supply–demand framework for the Anthropocene towards a global synthesis of land-surface fluxes under natural and human-altered watersheds
A. Sankarasubramanian, Dingbao Wang, Stacey A. Archfield, Meredith Reitz, Richard M Vogel, Amirhossein Mazrooei, Sudarshana Mukhopadhyaya
2020, Hydrology and Earth System Sciences (24) 1975-1984
Global hydroclimatic conditions have been substantially altered over the past century by anthropogenic influences that arise from the warming global climate and from local/regional anthropogenic disturbances. Traditionally, studies have used coupling of multiple models to understand how land-surface water fluxes vary due to changes in global climatic patterns and local...
A graphical causal model for resolving species identity effects and biodiversity–ecosystem function correlations
Donald R. Schoolmaster Jr., Chad R Zirbel, James P. Cronin
2020, Ecology (101)
Identifying and clearly communicating the drivers of ecosystem function is a crucially important goal for both basic and applied ecology. This has proven difficult because the putative causes (e.g., environment, species identity, biodiversity, and functional traits) are numerous and correlated. The problem is exacerbated by a lack of a formal...
Modeling the supporting ecosystem services of depressional wetlands
David M. Mushet, Cali L. Roth
2020, Wetlands (40) 1061-1069
We explored how a geographic information system modeling approach could be used to quantify supporting ecosystem services related to the type, abundance, and distribution of landscape components. Specifically, we use the Integrated Valuation of Ecosystem Services and Tradeoffs model to quantify habitats that support amphibians and birds, floral resources that...
Science plan for improving three-dimensional seismic velocity models in the San Francisco Bay region, 2019–24
Brad T. Aagaard, Russell W. Graymer, Clifford H. Thurber, Arthur J. Rodgers, Taka’aki Taira, Rufus D. Catchings, Christine A. Goulet, Andreas Plesch
2020, Open-File Report 2020-1019
This five-year science plan outlines short-term and long-term goals for improving three-dimensional seismic velocity models in the greater San Francisco Bay region as well as how to foster a community effort in reaching those goals. The short-term goals focus on improving the current U.S. Geological Survey San Francisco Bay region...
AMMonitor: Remote monitoring of biodiversity in an adaptive framework with R
Cathleen Balantic, Therese M. Donovan
2020, Methods in Ecology and Evolution (11) 869-877
Ecological research and management programs are increasingly using autonomous monitoring units (AMUs) to collect large volumes of acoustic and/or photo data to address pressing management objectives or research goals. The data management requirements of an AMU-based monitoring effort are often overwhelming, with a considerable amount of processing to translate raw...
AMMonitor 2: Remote monitoring of biodiversity in an adaptive framework in R
Cathleen Balantic, Therese M. Donovan
2020, Methods in Ecology and Evolution (11) 869-877
Ecological research and management programs are increasingly using autonomous monitoring units (AMUs) to collect large volumes of acoustic and/or photo data to address pressing management objectives or research goals. The data management requirements of an AMU-based monitoring effort are often overwhelming, with a considerable amount of processing to translate...
Disk-integrated thermal properties of Ceres measured at the millimeter wavelengths
Jian-Yang Li, Arielle Moullet, Timothy N. Titus, Henry H. Hsieh, Mark V. Sykes
2020, Astronomical Journal (159)
We observed Ceres at three epochs in 2015 November and 2017 September and October with Atacama Large Millimeter/submillimeter Array (ALMA) 12 m array and in 2017 October with the ALMA Compact Array (ACA), all at ~265 GHz continuum (wavelengths of ~1.1 mm) to map the temperatures of...
Tree-ring evidence of forest management moderating drought responses: Implications for dry, coniferous forests in the southwestern United States
Phillip J. van Mantgem, Lucy P Kerhoulas, Rosemary L. Sherriff, Zachary James Wenderott
2020, Frontiers in Forests and Global Change (3)
Drought, coupled with rising temperatures, is an emerging threat to many forest types across the globe. At least to a degree, we expect management actions that reduce competition (e.g., thinning, prescribed fire, or both) to improve growth of residual trees during drought. The influences of management actions and drought on...
Brightness of the night sky affects loggerhead (Caretta caretta) sea turtle hatchling misorientation but not nest site selection
Thomas Stanley, Jeremy White, Susan Teel, Mark Nicholas
2020, Frontiers in Marine Science (7)
Sea turtles in the Gulf of Mexico, which are listed as either threatened or endangered under the US Endangered Species Act, face numerous threats from many sources but are particularly susceptible to the effects of light pollution on nesting beaches. Light pollution affects the distribution, density, and placement of nests...
InFish: A professional network to promote global conservation and responsible use of inland fish
Abigail J Lynch, Devin M. Bartley, Beard Jr., David Bunnell, Steve J. Cooke, Ian. G. Cowx, Simon Funge-Smith, Craig P. Paukert, Mark W. Rogers, William W. Taylor
2020, Fisheries Magazine (45) 319-326
Inland fishes and fisheries make substantial contributions to individuals, society, and the environment in a changing global landscape that includes climate, water allocations, and societal changes. However, current limitations to valuing the services provided by inland fish and their fisheries often leaves them out of key decision‐making discussions. InFish is...
Bathymetric and velocimetric surveys at highway bridges crossing the Missouri River between Kansas City and St. Louis, Missouri, May 22–31, 2017
Richard J. Huizinga
2020, Scientific Investigations Report 2020-5018
Bathymetric and velocimetric data were collected by the U.S. Geological Survey, in cooperation with the Missouri Department of Transportation, near 10 bridges at 9 highway crossings of the Missouri River between Kansas City and St. Louis, Missouri, from May 22 to 31, 2017. A multibeam echosounder mapping system was used...
Atmospheric dust deposition varies by season and elevation in the Colorado Front Range, USA
Ruth C. Heindel, Annie L. Putman, Sheila F. Murphy, Deborah A. Repert, Eve-Lyn S. Hinckley
2020, Journal of Geophysical Research: Earth Surface (125)
As atmospheric dust deposition continues to increase across the southwestern United States, it has the potential to alter ecosystem productivity and structure by delivering nutrients, base cations, and pollutants to remote mountain sites. Due to the sparse distribution of dust monitoring sites, open questions remain about the spatial and temporal...
Genesis and evolution of ferromanganese crusts from the summit of Rio Grande Rise, southwest Atlantic Ocean
Mariana Benites, James R. Hein, Kira Mizell, Terrence Blackburn, Luigi Jovane
2020, Minerals (10)
The Rio Grande Rise (RGR) is a large elevation in the Atlantic Ocean and known to host potential mineral resources of ferromanganese crusts (Fe–Mn), but no investigation into their general characteristics have been made in detail. Here, we investigate the chemical and mineralogical composition, growth rates and...
Some approaches to accounting for incidental carcass discoveries in non-monitored years using the Evidence of Absence model
Daniel Dalthorp, Paul Rabie, Manuela Huso, Andrew Tredennick
2020, Open-File Report 2020-1027
Executive SummaryWe evaluate three approaches to accounting for incidental carcasses when estimating an upper bound on total mortality (𝑀) as 𝑀∗ using the Evidence of Absence model (EoA; Dalthorp and others, 2017) to assess compliance with an Incidental Take Permit (ITP) (Dalthorp & Huso, 2015) under a monitoring protocol that...
Zero or not? Causes and consequences of zero-flow stream gage readings
Margaret Zimmer, Kendra E. Kaiser, Joanna Blaszczak, Samuel Zipper, John C. Hammond, Ken M. Fritz, Katie H. Costigan, Jacob D. Hosen, Sarah E Godsey, George H. Allen, Stephanie K. Kampf, Ryan Burrow, Corey Krabbenhoft, Walter Dodds, Rebecca Hale, Julian D. Olden, Margaret Shanafield, Amanda DelVecchia, Adam S Ward, Meryl C. Mims, Thibault Datry, Michael A. Bogan, Kate Boersma, Michelle Busch, Nathan M. Jones, Amy Burgin, Daniel C. Allen
2020, WIREs Water (7)
Streamflow observations can be used to understand, predict, and contextualize hydrologic, ecological, and biogeochemical processes and conditions in streams. Stream gages are point measurements along rivers where streamflow is measured, and are often used to infer upstream watershed‐scale processes. When stream gages read zero, this may indicate that the stream...
Preliminary analysis to estimate the spatial distribution of benefits of P load reduction: Identifying the spatial influence of phosphorus loading from the Maumee River (USA) in western Lake Erie
James H. Larson, Enrika Hlavacek, Nathan R. De Jager, Mary Anne Evans, Timothy Wynne
2020, Ecology and Evolution (10) 3968-3976
Since the early 2000s, Lake Erie has been experiencing annual cyanobacterial blooms that often cover large portions of the western basin and even reach into the central basin. These blooms have affected several ecosystem services provided by Lake Erie to surrounding communities (notably drinking water quality). Several modeling efforts have...
A decision framework to analyze tide-gate options for restoration of the Herring River Estuary, Massachusetts
David R. Smith, Mitchell J. Eaton, Jill J. Gannon, Timothy P. Smith, Eric L. Derleth, Jonathan Katz, Kirk F. Bosma, Elise Leduc
2020, Open-File Report 2019-1115
The collective set of decisions involved with the restoration of degraded wetlands is often more complex than considering only ecological responses and outcomes. Restoration is commonly driven by a complex interaction of social, economic, and ecological factors representing the mandate of resource stewards and the values of stakeholders. The authors...
Black bear movement and food conditioning in an exurban landscape
Jessica Braunstein, Joseph D. Clark, Ryan H Williamson, William H Stiver
2020, Journal of Wildlife Management (84) 1038-1050
Conflicts between humans and wildlife have become increasingly important challenges for resource managers along the urban‐wildland interface. Food conditioning (i.e., reliance by an animal on anthropogenic foods) of American black bears (Ursus americanus ) is related to conflict behavior (i.e., being bold or aggressive toward humans, consuming human food or...
Combined effects of biological control of an invasive shrub and fluvial processes on riparian vegetation dynamics
Eduardo Gonzalez, Patrick B. Shafroth, Steven R. Lee, Steven M. Ostoja, Matthew L. Brooks
2020, Biological Invasions (22) 2339-2356
Plant community responses to biocontrol of invasive plants are understudied, despite the strong influence of the composition of replacement vegetation on ecosystem functions and services. We studied the vegetation response to a folivore beetle (Diorhabda genus, Coleoptera) that has been introduced along southwestern US river valleys to control the invasion of...
Migration corridors and threats in the Gulf of Mexico and Florida Straits for loggerhead sea turtles
Autumn Iverson, Allison Benscoter, Ikuko Fujisaki, Margaret Lamont, Kristen Hart
2020, Frontiers in Marine Science (7)
Along migration corridors, animals can face natural and anthropogenic threats that differ from those in breeding and non-breeding residence areas. Satellite telemetry can aid in describing the timing and location of these migrations. We use this tool with switching state-space modeling and line kernel density estimates to identify migration corridors...
Gap fill of Land surface temperature and reflectance products in Analysis Ready Data
Qiang Zhou, George Z. Xian, Hua Shi
2020, Remote Sensing (12)
The recently released Landsat Analysis Ready Data (ARD) over the United States provides the opportunity to investigate landscape dynamics using dense time series observations at 30-m resolution. However, the dataset often contains data gaps (or missing data) because of cloud contamination or data acquisition strategy. We present a new algorithm...
Landslide disparities, flume discoveries, and Oso despair
Richard M. Iverson
2020, Perspectives of Earth and Space Scientists (1)
Landslide dynamics is the branch of science that seeks to understand the motion of landslides by applying Newton's laws. This memoir focusses on a 40‐year effort to understand motion of highly mobile—and highly lethal—landslides such as debris avalanches and debris flows. A major component of this work entailed development and...
