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Low-flow period seasonality, trends, and climate linkages across the United States Low-flow period seasonality, trends, and climate linkages across the United States
Low-flow period properties, including timing, magnitude, and duration, influence many key processes for water resource managers and ecosystems. We computed annual low-flow period duration and timing metrics from 1951 to 2020 for 1032 conterminous United States (CONUS) streamgages and analyzed spatial patterns, trends through time, and relationships to climate. Results show northwestern...
Authors
Caelan Simeone, Gregory J. McCabe, Jory Seth Hecht, John C. Hammond, Glenn A. Hodgkins, Carolyn G. Olson, Michael Wieczorek, David M. Wolock
Movement behavior in a dominant ungulate underlies successful adjustment to a rapidly changing landscape following megafire Movement behavior in a dominant ungulate underlies successful adjustment to a rapidly changing landscape following megafire
Background Movement plays a key role in allowing animal species to adapt to sudden environmental shifts. Anthropogenic climate and land use change have accelerated the frequency of some of these extreme disturbances, including megafire. These megafires dramatically alter ecosystems and challenge the capacity of several species to adjust to a rapidly changing landscape. Ungulates and...
Authors
Kendall L. Calhoun, Thomas Connor, Kaitlyn M. Gaynor, Amy Van Scoyoc, Michael C Mcinturff, Samantha E.S. Kreling, Justin S. Brashares
Forecasting inundation of catastrophic landslides from precursory creep Forecasting inundation of catastrophic landslides from precursory creep
Forecasting landslide inundation upon catastrophic failure is crucial for reducing casualties, yet it remains a long-standing challenge owing to the complex nature of landslides. Recent global studies indicate that catastrophic hillslope failures are commonly preceded by a period of precursory creep, motivating a novel scheme to foresee their hazard. Here, we showcase an approach to...
Authors
Yuankun Xu, R. Burgmann, David L. George, E..J. Fielding, G.X. Solis-Gordillo, D.B. Yanez-Borja
(Re)discovering the seismicity of Antarctica: A new seismic catalog for the southernmost continent (Re)discovering the seismicity of Antarctica: A new seismic catalog for the southernmost continent
We apply a machine learning (ML) earthquake detection technique on over 21 yr of seismic data from on‐continent temporary and long‐term networks to obtain the most complete catalog of seismicity in Antarctica to date. The new catalog contains 60,006 seismic events within the Antarctic continent for 1 January 2000–1 January 2021, with estimated moment magnitudes (Mw ) between −1.0 and 4...
Authors
Andres F. Pena Castro, Brandon Schmandt, Jenny Sha Nakai, Richard C. Aster, Julien Chaput
Movement patterns of a small-bodied minnow suggest nomadism in a fragmented, desert river Movement patterns of a small-bodied minnow suggest nomadism in a fragmented, desert river
Background Unfettered movement among habitats is crucial for fish to access patchily distributed resources and complete their life cycle, but many riverscapes in the American Southwest are fragmented by dams. The federally endangered Rio Grande silvery minnow (Hybognathus amarus, RGSM) persists in a fragmented remnant of its former range (ca. 95% range reduction), and its movement...
Authors
Martinique J. Chavez, Phaedra E. Budy, Casey A. Pennock, Thomas P. Archdeacon, Peter D. MacKinnon
Quantitative risk of earthquake disruption to global copper and rhenium supply Quantitative risk of earthquake disruption to global copper and rhenium supply
Earthquakes have the potential to substantially affect mining operations, potentially leading to supply chain disruptions and adversely affecting the global economy. This study explores the quantification of earthquake risk to copper and rhenium commodity supply by examining the spatial concentration of high earthquake hazard areas and the commodity-specific mining, smelting, and...
Authors
Kishor S. Jaiswal, Nico Luco, Emily K. Schnebele, Nedal T. Nassar, Donya Otarod
Assessment of long-term changes in surface-water extent within Klamath Marsh, south-central Oregon, 1985–2021 Assessment of long-term changes in surface-water extent within Klamath Marsh, south-central Oregon, 1985–2021
The annual maximum extent of surface water in Klamath Marsh has naturally fluctuated in response to periods of wet and dry conditions in the surrounding basin. Field observations during the 2010s indicate that the annual maximum extent of surface water has been declining and the marsh is not responding to hydrologic inputs as it had historically. This report describes the results of a...
Authors
Joseph J. Kennedy, Henry M. Johnson, Stephen B. Gingerich
Wildfires influence mercury transport, methylation, and bioaccumulation in headwater streams of the Pacific Northwest Wildfires influence mercury transport, methylation, and bioaccumulation in headwater streams of the Pacific Northwest
The increasing frequency and severity of wildfires are among the most visible impacts of climate change. However, the effects of wildfires on mercury (Hg) transformations and bioaccumulation in stream ecosystems are poorly understood. We sampled soils, water, sediment, in-stream leaf litter, periphyton, and aquatic invertebrates in 36 burned (one-year post fire) and 21 reference...
Authors
Austin K. Baldwin, James Willacker, Branden L. Johnson, Sarah E. Janssen, Collin A. Eagles-Smith
The LTAR Grazing Land Common Experiment at the Jornada Experimental Range: Old genetics, new precision technologies, and adaptive value chains The LTAR Grazing Land Common Experiment at the Jornada Experimental Range: Old genetics, new precision technologies, and adaptive value chains
Rangelands and the supply chains connected to them are central to the agrifood systems of the Southwestern United States. Local ranchers are simultaneously arid lands managers, herd managers, and marketing managers. To stay in business, they must constantly adapt to unpredictable forage resources and markets while conserving soils and vegetation resources for the long term. As climate...
Authors
Sheri Spiegal, Rick E. Estell, Andres F. Cibils, Andrew Cox, Matthew M. McIntosh, Dawn M. Browning, Michael C. Duniway, Micah Funk, Lara Macon, Sarah E. McCord, Matthew Redd, Cindy Tolle, Santiago A. Utsumi, Jeremy Walker, Nicholas P. Webb, Brandon T. Bestelmeyer
Re-evaluating Marine Isotope Stage 5a paleo-sea-level trends from across the Florida Keys reef tract Re-evaluating Marine Isotope Stage 5a paleo-sea-level trends from across the Florida Keys reef tract
Unraveling how Global Mean Sea Level (GMSL) fluctuated during past warm periods can improve our understanding of linkages between sea-level fluctuations, orbital forcing, and ice-sheet dynamics. Current estimates of GMSL for Marine Isotope Stages (MIS) 5a and 5c — two warm intervals following the relatively well-documented MIS 5e — contain meters of uncertainty and fewer data due to...
Authors
Scarlette Hsia, Lauren T. Toth, Richard A. Mortlock, Charles Kerans
Vulnerability of mineral-associated soil organic carbon to climate across global drylands Vulnerability of mineral-associated soil organic carbon to climate across global drylands
Mineral-associated organic carbon (MAOC) constitutes a major fraction of global soil carbon and is assumed less sensitive to climate than particulate organic carbon (POC) due to protection by minerals. Despite its importance for long-term carbon storage, the response of MAOC to changing climates in drylands, which cover more than 40% of the global land area, remains unexplored. Here we...
Authors
Díaz-Martínez Paloma, Fernando T. Maestre, Eduardo Moreno-Jimenez, Manuel Delgado-Baquerizo, David J. Eldridge, Hugo Saiz, Nicolas Gross, Yoann Le Bagousse-Pinguet, Beatriz Gozalo, Victoria Ochoa, Emilio Guirado, Miguel García-Gómez, Enrique Valencia, Sergio Asensio, Miguel Berdugo, Jaime Martinez-Valderrama, Betty J. Mendoza, Juan C. García-Gil, Claudio Zaccone, Marco Panettieri, Pablo García-Palacios, Wei Fan, Iria Benavente-Ferraces, Ana Rey, Nico Eisenhauer, Simone Cesarz, Mehdi Abedi, Rodrigo J. Ahumada, Julio M. Alcantara, Fateh Amghar, Valeria Aramayo, Antonio I. Arroyo, Khadijeh Bahalkeh, Farah Ben Salem, Niels Blaum, Bazartseren Boldgiv, Matthew A. Bowker, Donaldo Bran, Cristina Branquinho, Chongfeng Bu, Yonatan Cáceres, Rafaella Canessa, Andrea P. Castillo-Monroy, Ignacio Castro, Patricio Castro-Quezada, Roukaya Chibani, Abel A. Conceição, Courtney M. Currier, Anthony Darrouzet-Nardi, Balazs Deak, Christopher R. Dickman, David A. Donoso, Andrew J. Dougill, Jorge Duran, Hamid Ejtehadi, Carlos I. Espinosa, Alex Fajardo, Mohammad Farzam, Daniela Ferrante, Lauchlan H. Fraser, Juan J. Gaitan, Elizabeth Gusman Montalván, Rosa M. Hernández-Hernández, Andreas von Hessberg, Norbert Holzel, Elisabeth Huber-Sannwald, Frederic M. Hughes, Oswaldo Jadan-Maza, Katja Geissler, Anke Jentsch, Mengchen Ju, Kudzai F. Kaseke, Liana Kindermann, Jessica E. Koopman, Peter C. le Roux, Pierre Liancourt, Anja Linstadter, Jushan Liu, Michelle A. Louw, Gillian Maggs-Kolling, Thulani P. Makhalanyane, Oumarou Malam Issa, Eugene Marais, Pierre Margerie, Antonio J. Mazaneda, Mitchel P. McClaran, Joao Vitor S. Messeder, Juan P. Mora, Gerardo Moreno, Seth M. Munson, Alice Nunes, Gabriel Oliva, Gastón R. Oñatibia, Brooke Osborne, Guadalupe Peter, Yolanda Pueyo, R. Emiliano Quiroga, Sasha C. Reed, Victor M. Reyes, Alexandra Rodriguez, Jan C. Ruppert, Osvaldo E. Sala, Ayman Salah, Julius Sebei, Michael Sloan, Shijirbaatar Solongo, Ilan Stavi, Colton R.A. Stephens, Alberto L. Teixido, Andrew D. Thomas, Heather L. Throop, Katja Tielborger, Samantha K. Travers, James Val, Orsolya Valko, Liesbeth van den Brink, Frederike Velbert, Wanyoike Wamiti, Deli Wang, Lixin Wang, Glenda M. Wardle, Laura Yahdjian, Eli Zaady, Juan M. Zeberio, Yuanming Zhang, Xiaobing Zhou, Cesar Plaza
Freshwater biogeochemical hotspots: High primary production and ecosystem respiration in shallow waterbodies Freshwater biogeochemical hotspots: High primary production and ecosystem respiration in shallow waterbodies
Ponds, wetlands, and shallow lakes (collectively “shallow waterbodies”) are among the most biogeochemically active freshwater ecosystems. Measurements of gross primary production (GPP), respiration (R), and net ecosystem production (NEP) are rare in shallow waterbodies compared to larger and deeper lakes, which can bias our understanding of lentic ecosystem processes. In this study, we...
Authors
Joseph Rabaey, Meredith Holgerson, David Richardson, Mikkel R. Andersen, Sheel Bansal, Lauren E Bortolotti, James Cotner, Daniel Hornbach, Kenneth T. Martinsen, Eric Moody, Olivia F. Schloegel