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Filter Total Items: 175347

Uncertainty and spatial correlation in station measurements for mb magnitude estimation Uncertainty and spatial correlation in station measurements for mb magnitude estimation

The body‐wave magnitude (⁠⁠) is a long‐standing network‐averaged, amplitude‐based magnitude used to estimate the magnitude of seismic sources from teleseismic observations. The U.S. Geological Survey National Earthquake Information Center (NEIC) relies on in its global real‐time earthquake monitoring mission. Although waveform modeling‐based moment magnitudes are the modern standard to
Authors
William L. Yeck, Adam T. Ringler, David R. Shelly, Paul S. Earle, Harley M. Benz, David C. Wilson

Declines and shifts in morphological diversity of ciscoes (Coregonus spp.) in lakes Huron and Michigan, 1917–2019 Declines and shifts in morphological diversity of ciscoes (Coregonus spp.) in lakes Huron and Michigan, 1917–2019

Ciscoes (Coregonus spp.) were historically abundant and ecologically important in Laurentian Great Lakes ecosystems. Despite well-documented declines in their abundance and taxonomic diversity, declines in morphological diversity remain understudied. This knowledge gap is especially pertinent for lakes Michigan and Huron, which have each lost six of eight historical species. Improved...
Authors
Paul W. Fedorowicz, Yu-Chun Kao, Amanda Susanne Ackiss, Katie Victoria Anweiler, Andrew Edgar Honsey

Hydrogeologic conceptual model of groundwater occurrence and brine discharge to the Dolores River in the Paradox Valley, Montrose County, Colorado Hydrogeologic conceptual model of groundwater occurrence and brine discharge to the Dolores River in the Paradox Valley, Montrose County, Colorado

Salinity, or total dissolved solids (TDS), of the Colorado River is a major concern in the southwestern United States where the river provides water to about 40 million people for municipal and industrial use and is used to irrigate about 5.5 million acres of land. Much of the salinity in the Colorado River Basin is derived from natural interactions of surface water and groundwater with...
Authors
Suzanne S. Paschke, M. Alisa Mast, Philip M. Gardner, Connor P. Newman, Kenneth R. Watts

Simulation of groundwater flow and brine discharge to the Dolores River in the Paradox Valley, Montrose County, Colorado Simulation of groundwater flow and brine discharge to the Dolores River in the Paradox Valley, Montrose County, Colorado

Salinity, or total dissolved solids (TDS), of the Colorado River affects agricultural, municipal, and industrial water users and is an important concern in the Western United States. In the Paradox Valley of southwestern Colorado, natural discharge of sodium-chloride brine to the Dolores River from the underlying core of a salt-valley anticline accounts for about 6 percent of the...
Authors
Charles E. Heywood, Suzanne S. Paschke, M. Alisa Mast, Kenneth R Watts

A unified approach to long-term population monitoring of grizzly bears in the Greater Yellowstone Ecosystem A unified approach to long-term population monitoring of grizzly bears in the Greater Yellowstone Ecosystem

Long-term wildlife research and monitoring programs strive to maintain consistent data collections and analytical methods. Incorporating new techniques is important but can render data sets incongruent and limit their potential to discern trends in demographic parameters. Integrated population models (IPMs) can address these limitations by combining data sources that may span different...
Authors
Matthew J. Gould, Justin Clapp, Mark A. Haroldson, Cecily M. Costello, J. Joshua Nowak, Hans Martin, Michael Ebinger, Daniel D. Bjornlie, Daniel Thompson, Justin A. Dellinger, Matthew A. Mumma, Paul Lukacs, Frank T. van Manen

Skill assessment of a total water level and coastal change forecast during the landfall of a hurricane Skill assessment of a total water level and coastal change forecast during the landfall of a hurricane

The Total Water Level and Coastal Change Forecast (TWL&CC Forecast) provides coastal communities with 6-day notice of potential elevated water levels and coastal change (i.e., dune erosion, overwash, or inundation) on sandy beaches that threatens safety, infrastructure, or resources. This continuously operating model provides hourly information for select regions along U.S. Gulf of...
Authors
Justin J. Birchler, Margaret L. Palmsten, Kara S. Doran, Sharifa Karwandyar, Joshua Michael Pardun, Elora M. Oades, Ryan P. Mulligan, Eli Sawyer Whitehead-Zimmers

Crystal resorption as a driver for mush maturation: An experimental investigation Crystal resorption as a driver for mush maturation: An experimental investigation

The thermal state of a magma reservoir controls its physical and rheological properties: at storage temperatures close to the liquidus, magmas are dominated by melt and therefore mobile, while at lower temperatures, magmas are stored as a rheologically locked crystal network with interstitial melt (crystal mush). Throughout the lifetime of a magmatic system, temperature fluctuations...
Authors
Martin F. Mangler, Madeleine C.S. Humphreys, Alexander A. Iveson, Kari M. Cooper, Michael A. Clynne, Amanda Lindoo, Richard A. Brooker, Fabian B. Wadsworth

Combined high rates of alternative breeding strategies unexpectedly found among populations of a solitary nesting raptor Combined high rates of alternative breeding strategies unexpectedly found among populations of a solitary nesting raptor

Social monogamy is the prevalent mating system in birds, but alternative strategies of extra-pair paternity (EPP) and conspecific brood parasitism (CBP) occur in many species. Raptors are virtually absent in discussions of broad taxonomic reviews regarding EPP and CBP likely because these strategies are mostly absent or at low frequency; CBP is unreported in solitary nesting raptors. In...
Authors
Robert N. Rosenfield, Sarah A. Sonsthagen, William E. Stout, Timothy G. Driscoll, Andrew C. Stewart, Paul N. Frater, Sandra L. Talbot

Predicting the effects of solar energy development on plants and wildlife in the Desert Southwest, United States Predicting the effects of solar energy development on plants and wildlife in the Desert Southwest, United States

Utility-scale solar energy (USSE) is rapidly expanding and expected to compose the largest source of renewable-generated electricity in the United States and globally over the coming decades. Lands in the hot Desert Southwest (Chihuahuan, Mojave, Sonoran, and San Joaquin Deserts) are increasingly selected for USSE development because of their high solar irradiance. The Desert Southwest...
Authors
Claire C Karban, Jeffrey E. Lovich, Steven Mark Grodsky, Seth M. Munson

Abiotic and demographic drivers of flea parasitism on deer mice in a recovering mixed-conifer forest a decade postfire Abiotic and demographic drivers of flea parasitism on deer mice in a recovering mixed-conifer forest a decade postfire

With the intensity and frequency of wildfires increasing rapidly, the need to study the ecological effects of these wildfires is also growing. An understudied aspect of fire ecology is the effect fires have on parasite–host interactions, including ectoparasites that might be pathogen vectors. Although some studies have examined the impacts of fire on ticks, studies on other ectoparasites
Authors
Colton J. Padilla, Jessica T. Martin, James W. Cain, Matthew E. Gompper

The relationship between maturation size and maximum tree size from tropical to boreal climates The relationship between maturation size and maximum tree size from tropical to boreal climates

The fundamental trade-off between current and future reproduction has long been considered to result in a tendency for species that can grow large to begin reproduction at a proportionately larger size. Due to the prolonged time required to reach maturity, estimates of tree maturation size remain unavailable and we lack a global view on the generality and the shape of this trade-off...
Authors
Valentin Journe, Michał Bogdziewicz, Benoit Courbaud, Georges Kunstler, Tong Qiu, Marie-Claire Aravena Acuña, Davide Ascoli, Yves Bergeron, Daniel Berveiller, Thomas Boivin, Raul Bonal, Thomas Caignard, Maxime Cailleret, Rafael Calama, J. Julio Camarero, Chia-Hao Chang-Yang, Jerome Chave, Francesco Chianucci, Thomas Curt, Andrea Cutini, Adrian Das, Evangelia Daskalakou, Hendrik Davi, Nicolas Delpierre, Sylvain Delzon, Michael Dietze, Sergio Donoso Calderon, Laurent Dormont, Josep Maria Espelta, William Farfan-Rios, Michael Fenner, Jerry F. Franklin, Catherine A. Gehring, Gregory S. Gilbert, Georg Gratzer, Cathryn H. Greenberg, Arthur Guignabert, Qinfeng Guo, Andrew Hacket-Pain, Arndt Hampe, Qingmin Han, Mick E. Hanley, Janneke Hille Ris Lambers, Jan Holik, Kazuhiko Hoshizaki, Ines Ibanez, Jill F. Johnstone, Johannes M. H. Knops, Richard K. Kobe, Hiroko Kurokawa, Jonathan G. A. Lageard, Jalene M. LaMontagne, Mateusz Ledwon, Francois Lefevre, Theodor Leininger, Jean-Marc Limousin, James A. Lutz, Diana Macias, Anders Marell, Eliot J. B. McIntire, Emily V. Moran, Renzo Motta, Jonathan A. Myers, Thomas A. Nagel, Shoji Naoe, Mahoko Noguchi, Julian Norghauer, Michio Oguro, Jean-Marc Ourcival, Robert Parmenter, Ian S. Pearse, Ignacio M. Perez-Ramos, Lukasz Piechnik, Tomasz Podgorski, John Poulsen, Miranda D. Redmond, Chantal D. Reid, Pavel Samonil, C. Lane Scher, William H. Schlesinger, Barbara Seget, Shubhi Sharma, Mitsue Shibata, Miles Silman, Michael A. Steele, Nathan L. Stephenson, Jacob N. Straub, Samantha Sutton, Jennifer J. Swenson, Margaret Swift, Peter A. Thomas, Maria Uriarte, Giorgio Vacchiano, Amy V. Whipple, Thomas G. Whitham, S. Joseph Wright, Kai Zhu, Jess K. Zimmerman, Magdalena Zywiec, James S. Clark

Testing tree-ring cellulose δ18O with water isotopes for Holocene lake δ18O interpretations in the central Rocky Mountains USA Testing tree-ring cellulose δ18O with water isotopes for Holocene lake δ18O interpretations in the central Rocky Mountains USA

Stable isotopes of water preserved in geologic archives, primarily as oxygen (δ18O), have proven critical for documenting Earth’s climatic and hydrologic systems past and present. However, timescale differences of water isotope inputs to proxy systems and the signal embedded in long paleorecords often confound translation to observed hydroclimatic metrics. Here, a unique 20-year dataset...
Authors
Lesleigh Anderson, M. Alisa Mast, Rebecca Lynn Brice, Max Berkelhammer
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