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...
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...
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...
Drivers of site fidelity in ungulates
Thomas A. Morrison, Jerod A. Merkle, J. Grant C. Hopcraft, Ellen O. Aikens, Jeffrey Beck, Randall Boone, Alyson B. Courtemanch, Samantha P. Dwinnell, W. Sue Fairbanks, Brad Griffith, Arthur D. Middleton, Kevin L. Monteith, Brendan Oates, Louise Riotte-Lambert, Hall Sawyer, Kurt T. Smith, Jared A. Stabach, Kaitlyn L. Taylor, Matthew J. Kauffman
2021, Journal of Animal Ecology (90) 955-966
While the tendency to return to previously visited locations—termed ‘site fidelity’—is common in animals, the cause of this behaviour is not well understood. One hypothesis is that site fidelity is shaped by an animal's environment, such that animals living in landscapes with predictable resources have stronger site fidelity. Site...
Onshore flow characteristics of the 1755 CE Lisbon tsunami: Linking forward and inverse numerical modeling
Ivana Bosnic, Pedro JM Costa, Francisco Dourado, SeanPaul La Selle, Guy R. Gelfenbaum
2021, Marine Geology (434)
The 1755 CE Lisbon earthquake triggered the largest historical tsunami ever impacting the Atlantic coasts of Europe. Despite recent efforts to better understand this event, there are still unanswered questions about the location of its epicenter and whether physical and historical evidences are in agreement.Inverse modeling using tsunami...
Morphology and composition of Goldeye (Hiodontidae; Hiodon alosoides) otoliths
James M. Long, Richard A. Snow, Brenda M. Pracheil, Bryan C. Chakaoumakous
2021, Journal of Morphology (282) 511-519
We provide up-to-date morphological and compositional data on otoliths of the osteoglossomorph Goldeye (Hiodon alosoides). Using computed tomography (CT) X-ray, we documented the location of each of the three pairs of otoliths (lapilli, sagittae, and asterisci) in relation to the swim bladder, which extended forward in close proximity to the...
Predictors of invertebrate biomass and rate of advancement of invertebrate phenology across eight sites in the North American Arctic
Rebecca Shaftel, Daniel J. Rinella, Eunbi Kwon, Stephen C. Brown, H. River Gates, Steve Kendall, David B. Lank, Joseph R. Liebezeit, David C. Payer, Jennie Rausch, Sarah T. Saalfeld, Brett K. Sandercock, Paul A. Smith, David H. Ward, Richard B. Lanctot
2021, Polar Biology (44) 237-257
Average annual temperatures in the Arctic increased by 2–3 °C during the second half of the twentieth century. Because shorebirds initiate northward migration to Arctic nesting sites based on cues at distant wintering grounds, climate-driven changes in the phenology of Arctic invertebrates may lead to a mismatch between the nutritional demands...
Evaluating the use of marine protected areas by endangered species: A habitat selection approach
Kelsey E. Roberts, Brian J. Smith, Derek A. Burkholder, Kristen Hart
2021, Ecological Solutions and Evidence (2)
1. Optimizing the design of marine protected area (MPA) networks for the conservation of migratory marine species and their habitats involves a suite of important considerations, such as appropriate scale requirements and the distribution of anthropogenic impacts. Often, a fundamental component of the conservation planning process is delineating areas of...
Valleys of fire: Historical fire regimes of forest-grassland ecotones across the montane landscape of the Valles Caldera National Preserve, New Mexico, USA
J. J. Dewar, Donald A. Falk, T. W. Swetnam, C. H. Baisan, Craig D. Allen, R. R. Parmenter, Ellis Q. Margolis
2021, Landscape Ecology (36) 331-352
ContextMontane grasslands and forest-grassland ecotones are unique and dynamic components of many landscapes, but the processes that regulate their dynamics are difficult to observe over ecologically relevant time spans.ObjectivesWe aimed to demonstrate the efficacy of using grassland-forest ecotone trees to reconstruct spatial and temporal properties of...
A metapopulation model of social group dynamics and disease applied to Yellowstone wolves
Ellen E. Brandell, A P Dobson, Peter J. Hudson, Paul C. Cross, Douglas W. Smith
2021, Proceedings of the National Academy of Sciences (118)
The population structure of social species has important consequences for both their demography and transmission of their pathogens. We develop a metapopulation model that tracks two key components of a species’ social system: average group size and number of groups within a population. While the model...
Precipitation characteristics and land cover control wet season runoff source and rainfall partitioning in three humid tropical catchments in central Panama
Andrew L. Birch, Robert Stallard, Holly R. Barnard
2021, Water Resources Research (57)
Mechanisms of runoff generation in the humid tropics are poorly understood, particularly in the context of land-use/land cover change. This study analyzed the results of 124 storm hydrographs from three humid tropical catchments of markedly different vegetation cover and land-use history in central Panama during the...
Space matters: Host spatial structure and the dynamics of plague transmission
Robin E. Russell, Daniel P. Walsh, Michael D. Samuel, Martin S. Grunnill, Tonie E. Rocke
2021, Ecological Modelling (443)
The development of models to elucidate the transmission pathways and dynamics of wildlife diseases remains challenging. Sylvatic plague, caused by the bacterium Yersinia pestis (Yp), is an infectious zoonotic disease that primarily affects wild rodents, including prairie...
Water-quality trends of urban streams in Independence, Missouri, 2005–18
Miya N. Barr, Stephen J. Kalkhoff
2021, Scientific Investigations Report 2020-5130
The U.S. Geological Survey and the city of Independence, Missouri, Water Pollution Control Department has studied the water quality and ecological condition of urban streams within Independence since 2005. Selected physical properties, nutrients, chloride, fecal indicator bacteria (Escherichia coli and total coliform), total dissolved solids, and suspended-sediment concentration data for...
Role of future reef growth on morphological response of coral reef islands to sea-level rise
Gerd Masselink, Robert T. McCall, Eddie Beetham, Paul Kench, Curt D. Storlazzi
2021, Journal of Geophysical Research--Earth Surface (126)
Coral reefs are widely recognised for providing a natural breakwater effect that modulates erosion and flooding hazards on low‐lying sedimentary reef islands. Increased water depth across reef platforms due sea‐level rise (SLR) can compromise this breakwater effect and enhance island exposure to these hazards, but reef accretion...
Which earthquake accounts matter?
Susan E. Hough, Stacey S. Martin
2021, Seismological Research Letters (92) 1069-1084
Earthquake observations contributed by human observers provide an invaluable source of information to investigate both historical and modern earthquakes. Commonly, the observers whose eyewitness accounts are available to scientists are a self‐selected minority of those who experience a given earthquake. As such these may not...
Age‐ and sex‐related dietary specialization facilitate seasonal resource partitioning in a migratory shorebird
Laurie Anne Hall, Susan E.W. De La Cruz, Isa Woo, Tomohiro Kuwae, John Y. Takekawa
2021, Ecology and Evolution (11) 1866-1876
Dietary specialization is common in animals and has important implications for individual fitness, inter‐ and intraspecific competition, and the adaptive potential of a species. Diet composition can be influenced by age‐ and sex‐related factors including an individual's morphology, social status, and acquired skills; however, specialization may only be necessary...
Using expert knowledge to support Endangered Species Act decision‐making for data‐deficient species
Daniel Bruce Fitzgerald, David R. Smith, David C. Culver, Daniel Feller, Daniel W. Fong, Jeff Hajenga, Matthew L. Niemiller, Daniel C. Nolfi, Wil D. Orndorff, Barbara Douglas, Kelly O. Maloney, John A. Young
2021, Conservation Biology (35) 1627-1638
Many questions relevant to conservation decision making are characterized by extreme uncertainty due to lack of empirical data and complexity of the underlying ecological processes, leading to a rapid increase in the use of structured protocols to elicit expert knowledge. Published ecological applications often employ a modified Delphi method, where...
Trends in precipitation chemistry across the U.S. 1985–2017: Quantifying the benefits from 30 years of Clean Air Act amendment regulation
Michael McHale, Amy Ludtke, Gregory A. Wetherbee, Douglas A. Burns, Mark A. Nilles, Jason S. Finkelstein
2021, Atmospheric Environment (247)
Acid rain was first recognized in the 1970s in North America and Europe as an atmospheric pollutant that was causing harm to ecosystems. In response, the U.S. Congress enacted Title IV of the Clean Air Act Amendments (CAA) in 1990 to reduce sulfur and nitrogen emissions from fossil fuel...
U.S. Geological Survey 21st-Century science strategy 2020–2030
U.S. Geological Survey
2021, Circular 1476
Today’s Earth system challenges are far more complex and urgent than those that existed in 1879 when the USGS was established. Society’s greatest challenges are directly or indirectly linked to major areas of USGS science. Increased pressures on natural resources continue with consequences for national security, food and water availability,...
