Connectivity between lentic and lotic freshwater habitats identified as a conservation priority for coho salmon
Suresh Sethi, Joshua Ashline, Bradley P. Harris, Jonathon Gerken, Felipe Restrepo
2021, Aquatic Conservation: Marine and Freshwater Ecosystems (31) 1791-1801
Juvenile Pacific salmon exhibit diverse habitat use and migration strategies to navigate high environmental variability and predation risk during freshwater residency. Increasingly, urbanization and climate-driven hydrological alterations are affecting the availability and quality of aquatic habitats in salmon catchments. Thus, conservation of freshwater habitat integrity has emerged as an...
Modeling Least Bell’s Vireo habitat suitability in current and historic ranges in California
Kristine L. Preston, Barbara E. Kus, Emily Perkins
2021, Open-File Report 2020-1151
We developed a habitat suitability model for the federally endangered Least Bell’s Vireo (Vireo bellii pusillus) across its current and historic range in California. The vireo disappeared from most of its range by the 1980s, remaining only in southern California and northern Baja California, Mexico. This decline was due to...
Sediment mobility and river corridor assessment for a 140-kilometer segment of the main-stem Klamath River below Iron Gate Dam, California
Jennifer Curtis, Travis Poitras, Sandra Bond, Kristin Byrd
2021, Open-File Report 2020-1141
This river corridor assessment documents sediment mobility and river response to flood disturbance along a 140-kilometer segment of the main-stem Klamath River below Iron Gate Dam, California. Field and remote sensing methods were used to assess fundamental indicators of active sediment transport and river response to a combination of natural...
Native American fire management at an ancient wildland–urban interface in the Southwest United States
Christopher Roos, Thomas W. Swetnam, T. J. Ferguson, Matthew J. Liebmann, Rachel A. Loehman, John Welch, Ellis Margolis, Christopher H. Guiterman, William Hockaday, Michael Aiuvalasit, Jenna Battillo, Joshua Farella, Christopher Kiahtipes
2021, Proceedings of the National Academy of Sciences (4)
The intersection of expanding human development and wildland landscapes—the “wildland–urban interface” or WUI—is one of the most vexing contexts for fire management because it involves complex interacting systems of people and nature. Here, we document the dynamism and stability of an ancient WUI that was apparently sustainable for more than...
Widespread exposures of extensive clean shallow ice in the mid-latitudes of Mars
Colin M. Dundas, Michael T. Mellon, Susan J. Conway, Ingrid J. Daubar, Kaj E. Williams, Lujendra Ojha, James J. Wray, Ali Bramson, Shane Byrne, Alfred S. McEwen, Liliya Posiolova, Gunnar Speth, Donna Viola, Margaret E. Landis, Gareth A Morgan, Asmin V Pathare
2021, Journal of Geophysical Research: Planets (126)
Although ice in the Martian midlatitudes is typically covered by a layer of dust or regolith, it is exposed in some locations by fresh impact craters or in erosional scarps. In both cases, the exposed ice is massive or excess ice with a low lithic content. We...
Nutrient trends and drivers in the Chesapeake Bay Watershed
Kenneth Hyer, Scott W. Phillips, Scott W. Ator, Douglas L. Moyer, James S. Webber, Rachel Felver, Jennifer L. Keisman, Lee A. McDonnell, Rebecca Murphy, Emily M. Trentacoste, Qian Zhang, William C. Dennison, Sky Swanson, Brianne Walsh, Jane Hawkey, Dylan Taillie
2021, Fact Sheet 2020-3069
The Chesapeake Bay Program maintains an extensive nontidal monitoring network, measuring nitrogen and phosphorus (nutrients) at more than 100 locations on rivers and streams in the watershed. Data from these locations are used by United States Geological Survey to assess the ecosystem’s response to nutrient-reduction efforts. This fact sheet summarizes...
Laboratory maintenance and culture of Pseudogymnoascus destructans, the fungus that causes bat white-nose syndrome
David S. Blehert, Jeffrey M. Lorch
2021, Current Protocols (1)
Pseudogymnoascus destructans is a fungal pathogen that causes white‐nose syndrome, an emerging and fatal disease of North American bats that has led to unprecedented population declines. As a psychrophile, P. destructans is adapted to infect bats during winter hibernation, when host metabolic activity and core body temperature are greatly reduced. The ability to...
Vegetation monitoring optimization with normalized difference vegetation index and evapotranspiration using remote sensing measurements and land surface models over East Africa
Shahriar Pervez, Amy McNally, Kristi Arsenault, Michael Budde, James Rowland
2021, Frontiers in Climate (3)
The majority of people in East Africa rely on the agro-pastoral system for their livelihood, which is highly vulnerable to droughts and flooding. Agro-pastoral droughts are endemic to the region and are considered the main natural hazard that contributes to food insecurity. Drought begins with rainfall deficit, gradually leading...
Paleoseismic trenching reveals late quaternary kinematics of the Leech River Fault: Implications for forearc strain accumulation in Northern Cascadia
Nicolas Harrichhausen, Kristin D. Morell, Christine Regalla, Scott E.K. Bennett, Lucinda J. Leonard, Emerson M. Lynch, Edwin Nissen
2021, Bulletin of the Seismological Society of America (111) 1110-1138
New paleoseismic trenching indicates late Quaternary oblique right‐lateral slip on the Leech River fault, southern Vancouver Island, Canada, and constrains permanent forearc deformation in northern Cascadia. A south‐to‐north reduction in northward Global Navigation Satellite System velocities and seismicity across the Olympic Mountains, Strait of Juan de Fuca (JDF), and the...
Groundwater quality of aquifers overlying the Oxnard Oil Field, Ventura County, California
Celia Z. Rosecrans, Matthew K. Landon, Katherine Marie Ransom, Janice M. Gillespie, Justin T. Kulongoski, Michael J. Stephens, Andrew G. Hunt, David H. Shimabukuro, Tracy Davis
2021, Science of the Total Environment (771)
Groundwater samples collected from irrigation, monitoring, and municipal supply wells near the Oxnard Oil Field were analyzed for chemical and isotopic tracers to evaluate if thermogenic gas or water from hydrocarbon-bearing formations have mixed with surrounding groundwater. New and historical data show no evidence of water from hydrocarbon-bearing formations in...
Extending the capture map concept to estimate discrete and risk-based streamflow depletion potential
Jeremy T. White, Linzy K. Foster, Michael N. Fienen
2021, Groundwater (59) 571-580
A popular and contemporary use of numerical groundwater models is to estimate the discrete relation between groundwater extraction and surface-water/groundwater exchange. Previously, the concept of a “capture map” has been put forward as a means to effectively summarize this relation for decision-making consumption. While capture maps have enjoyed success in...
Constraints on the geometry of the subducted Gorda Plate with converted phases generated by local earthquakes
Jianhua Gong, Jeffrey J. McGuire
2021, JGR Solid Earth (126)
The largest slip in great megathrust earthquakes often occurs in the 10–30 km depth range, yet seismic imaging of the material properties in this region has proven difficult. We utilize a dense onshore-offshore passive seismic dataset from the southernmost Cascadia subduction zone where seismicity in the mantle of the subducted Gorda...
Why disease ecology needs life-history theory: A host perspective
Andres Valenzuela-Sanchez, Mark Q. Wilber, Stefano Canessa, Leonardo Bacigalupe, Erin L. Muths, Benedikt R. Schmidt, Andrew A Cunningham, Arpat Ozgul, Pieter Johnson, Hugo Cayuela
2021, Ecology Letters (24) 876-890
When facing an emerging infectious disease of conservation concern, we often have little information on the nature of the host‐parasite interaction to inform management decisions. However, it is becoming increasingly clear that the life‐history strategies of host species can be predictive of individual‐ and population‐level responses...
Quantifying nuisance ground motion thresholds for induced earthquakes
Ryan Schultz, Vince Quitoriano, David J. Wald, Gregory C. Beroza
2021, Earthquake Spectra (37) 789-802
Hazards from induced earthquakes are a growing concern with a need for effective management. One aspect of that concern is the “nuisance” from unexpected ground motions, which have the potential to cause public alarm and discontent. In this article, we borrow earthquake engineering concepts to quantify the...
Human activities and weather drive contact rates of wintering elk
William Michael Janousek, Tabitha A. Graves, Ethan Berman, Geneva W. Chong, Eric K Cole, Sarah Dewey, Aaron N. Johnston, Paul C. Cross
2021, Journal of Applied Ecology (58) 667-676
Wildlife aggregation patterns can influence disease transmission. However, limited research evaluates the influence of anthropogenic and natural factors on aggregation. Many managers would like to reduce wildlife contact rates, driven by aggregation, to limit disease transmission. We develop a novel analytical framework to quantify how management activities such as...
A reporting format for leaf-level gas exchange data and metadata
Kim S. Ely, Alistair Rogers, Deborah A. Agarwal, Elizabeth A. Ainsworth, Loren Albert, Ashehad Ali, Jeremiah Anderson, Michael J. Aspinwall, Chandra Bellasio, Carl Bernacchi, Steve Bonnage, Thomas N. Buckley, James Bunce, Angela C. Burnett, Florian A. Busch, Amanda Cavanagh, Lucas A. Cernusak, Robert Crystal-Ornelas, Joan Damerow, Kenneth J. Davidson, Martin G. De Kauwe, Michael C. Dietze, Tomas F. Domingues, Mirindi Eric Dusenge, David S. Ellsworth, John R. Evans, Paul Gauthier, Bruno O. Gimenez, Elizabeth P. Gordon, Christopher M. Gough, Aud H. Halbritter, David T. Hanson, Mary A. Heskel, J. Aaron Hogan, Jason R. Hupp, Kolby Jardine, Jens Kattge, Trevor F. Keenan, Johannes Kromdijk, Dushan P. Kumarathunge, Julien Lamour, Andrew D.B. Leakey, David S. LeBauer, Qianyu Li, Marjorie R. Lundgren, Nate McDowell, Katherine Meacham-Hensold, Belinda E. Medlyn, David J.P. Moore, Robinson Negron-Juarez, Ulo Niinemets, Colin P. Osborne, Alexandria L. Pivovaroff, Hendrik Poorter, Sasha C. Reed, Youngryel Ryu, Alvaro Sanz-Saez, Stephanie C. Schmiege, Shawn P. Serbin, Thomas D. Sharkey, Martijn Slot, Nicholas G. Smith, Balasaheb V. Sonawane, Paul F. South, Daisy S. Souza, Joseph Ronald Stinziano, Ellen Stuart-Haëntjens, Samuel H. Taylor, Mauricio D. Tejera, Johan Uddling, Vigdis Vandvik, Charuleka Varadharajan, Anthony P. Walker, Berkley J. Walker, Jeffrey M. Warren, Danielle A. Way, Brett T. Wolfe, Jin Wu, Stan D. Wullschleger, Chonggang Xu, Zhengbing Yan, Dedi Yang
2021, Ecological Informatics (61)
Leaf-level gas exchange data support the mechanistic understanding of plant fluxes of carbon and water. These fluxes inform our understanding of ecosystem function, are an important constraint on parameterization of terrestrial biosphere models, are necessary to understand the response of plants...
An assessment of vertical land movement to support coastal hazards planning in Washington state
Tyler Newton, Ray J. Weldon, Ian M. Miller, David Schmidt, Harriet Morgan, Eric Grossman, Guillaume S. Mauger
2021, Water (MDPI) (13)
The sea and land change elevation spatially and temporally from a multitude of processes, so it is necessary to constrain the movement of both to evaluate how coastlines will evolve and how those evolving coastlines will impact the natural and built environment over time. We combine land movement observations from...
Have sustained acidic deposition decreases led to increased calcium availability in recovering watersheds of the Adirondack region of New York, USA?
Gregory B. Lawrence, Jason Siemion, Michael R. Antidormi, Donald B. Bonville, Michael McHale
2021, Soil Systems (5)
Soil calcium depletion has been strongly linked to acidic deposition in eastern North America and recent studies have begun to document the recovery of soils in response to large decreases in acidic deposition. However, increased calcium availability has not yet been seen in the B horizon, where calcium depletion has...
In vitro effects-based method and water quality screening model for use in pre- and post-distribution treated waters
Elizabeth Medlock-Kakaley, Mary C. Cardon, Nicola Evans, Luke R. Iwanowicz, Joshua M. Allen, Elizabeth Wagner, Katherine Bokenkamp, Susan D Richardson, Michael J Plewa, Paul M. Bradley, Kristin M. Romanok, Dana W. Kolpin, Justin M. Conley, L. Earl Gray, Phillip C. Hartig, Vickie S. Wilson
2021, Science of the Total Environment (768)
Recent urban public water supply contamination events emphasize the importance of screening treated drinking water quality after distribution. In vitro bioassays, when run concurrently with analytical chemistry methods, are effective tools to evaluating the efficacy of water treatment processes and water quality. We tested 49 water...
Habitat use as indicator of adaptive capacity to climate change
Claire S. Teitelbaum, Alexej P. K. Siren, Ethan Coffel, Jane R. Foster, Jacqueline L. Frair, Joseph W. Hinton, Radley W. Horton, David W. Kramer, Corey Lesk, Colin Raymond, David Wattles, Katherine Zeller, Toni Lyn Morelli
2021, Diversity and Distributions (27) 655-667
AimPopulations of cold‐adapted species at the trailing edges of geographic ranges are particularly vulnerable to the negative effects of climate change from the combination of exposure to warm temperatures and high sensitivity to heat. Many of these species are predicted to decline under future climate scenarios, but...
Sentinel-2 and WorldView-3 atmospheric correction and signal normalization based on ground-truth spectroradiometric measurements
J.L. Pancorbo, Brian T. Lamb, Miguel Quemada, W. Dean Hively, I. Gonzalez-Fernandez, Inigo Molina
2021, ISPRS Journal of Photogrammetry and Remote Sensing (173) 166-180
Remote sensing satellite Earth Observing Systems (EOS) provide a variety of products for monitoring Earth surface processes at varying spatial and spectral resolutions. Combining information from high and medium spatial resolution images is valuable for monitoring ground cover and vegetation status...
Could ecological release buffer suppression efforts for non-native lake trout (Salvelinus namaycush) in Yellowstone Lake, Yellowstone National Park?
John M. Syslo, Travis O. Brenden, Christopher S. Guy, Todd M Koel, Patricia E. Bigelow, Philip D Doepke, Jeffrey L. Arnold, Brian D. Ertel
2021, Canadian Journal of Fisheries and Aquatic Sciences (77) 1010-1025
Yellowstone Lake in Yellowstone National Park, USA, has the longest ongoing suppression program for non-native lake trout (Salvelinus namaycush) in the western USA. Harvest data from the suppression program, along with data from an assessment program initiated in 2011, was used to estimate lake trout abundance and mortality rates. Abundance...
The history of surface-elevation paradigms in mangrove biogeomorphology
Daniel A. Friess, Karen L. McKee
2021, Book chapter, Dynamic sedimentary environments of mangrove coasts
Positioned in the intertidal zone, mangrove forests are a key model ecosystem with which to observe and test biogeomorphological concepts. Understanding how mangroves interact with their intertidal environment, particularly tidal inundation, is important if we are to assess their vulnerability or resilience to accelerated sea-level rise. While various biogeomorphological processes...
Does geomorphology determine vulnerability of mangrove coasts to sea-level rise?
Karen L. McKee, Ken Krauss, Donald Cahoon
2021, Book chapter, Dynamic Sedimentary Environments of Mangrove Coasts
The greatest climate-based threat to coastlines worldwide is sea-level rise. We tested the hypothesis that tropical coasts fringed by mangroves and receiving high inputs of terrigenous sediment are less vulnerable to sea-level rise than biogenic systems dependent upon peat formation for vertical land development. An analysis of published data spanning...
Presence of microplastics in the food web of the largest high-elevation lake in North America
Stephanie C. Driscoll, Hayley C. Glassic, Christopher S. Guy, Todd. M. Koel
2021, Water (13)
Microplastics have been documented in aquatic and terrestrial ecosystems throughout the world. However, few studies have investigated microplastics in freshwater fish diets. In this study, water samples and three trophic levels of a freshwater food web were investigated for microplastic presence: amphipods (Gammarus lacustris), Yellowstone cutthroat trout (Oncorhynchus...
