The North American greenhouse gas budget: Emissions, removals, and integration for CO2, CH4, and N2O (2010–2019): Results From the Second REgional Carbon Cycle Assessment and Processes Study (RECCAP2)
Benjamin Poulter, Guillermo Murray-Tortarolo, Daniel J. Hayes, Philippe Ciais, Robbie M. Andrew, Ana Bastos, Brendan Byrne, David Butman, Josep G. Canadell, Abhishek Chatterjee, Grant Domke, Andrew F. Feldman, Kelsey Foster, Neha Hunka, Robert B. Jackson, Werner A. kurz, Ayia Lindquist, Maodian Liu, Ingrid Luijkx, Arnaud Mialon, Anna M. Michalak, John Miller, Wolfgang A. Obermeier, Naiqin Pan, James T. Randerson, Peter A. Raymond, Pierre Regnier, Laure Resplandy, Gerard Rocher-Ros, Nemesio Rodriquez-Fernandez, Judith A. Rosentreter, Julio Cesar Salazar-Neira, Suzanne E. Tank, Hanqin Tan, Rodrigo Vargas, Yohanna Villalobos, Jonathan A. Wang, Xinyuan Wei, Kimberly Wickland, Christopher J. Williams , Lisamarie Windham-Myers, Christopher W. Woodall, Qing Ying, Zhen Zhang
2025, Global Biogeochemical Cycles (39)
Accurate accounting of greenhouse-gas (GHG) emissions and removals is central to tracking progress toward climate mitigation and for monitoring potential climate-change feedbacks. GHG budgeting and reporting can follow either the Intergovernmental Panel on Climate Change methodologies for National Greenhouse Gas Inventory (NGHGI) reporting or use atmospheric-based “top-down” (TD) inversions or...
Salinas Valley integrated hydrologic and reservoir operations models, Monterey and San Luis Obispo Counties, California
Wesley R. Henson, Randy Hanson, Scott E. Boyce, Joseph A. Hevesi, Elizabeth Rae Jachens
2025, Preprint
The area surrounding the Salinas Valley groundwater basin in Monterey and San Luis Obispo Counties of California is a highly productive agricultural area, contributes significantly to the local economy, and provides a substantial portion of vegetables and other agricultural commodities to the Nation. This region of California provides about half...
Linking tidal-creek sediment fluxes to vertical sediment accretion in a restored salt marsh
Daniel J. Nowacki, Jessica R. Lacy, SeanPaul La Selle
2025, Earth Surface Processes and Landforms (50)
Despite growing interest and investment in salt-marsh restoration, relatively few marshes subjected to restoration efforts have been systematically monitored to assess physical restoration trajectory or success. In south San Francisco Bay, CA, USA, where 83% of wetlands were lost via human manipulation, the largest wetland restoration effort on the U.S....
Identical sequence types of Yersinia ruckeri associated with lethal disease in wild-caught invasive Blue Catfish and cultured hybrid catfish (Channel Catfish ♀ × Blue Catfish ♂) from disparate aquatic ecosystems
Christine L. Densmore, Madeleine Hendrix, Stephen Reichley, Clayton D. Raines, Noah Bressman, Zachary Crum, Lester Khoo, Geoffrey Waldbieser, Matt Griffin, Timothy J Welch, Luke R. Iwanowicz
2025, Journal of Aquatic Animal Health (37) 21-33
ObjectiveThe Blue Catfish Ictalurus furcatus is commonly raised in warmwater aquaculture in the United States to produce Channel Catfish I. punctatus × Blue Catfish hybrids. It is also a prominent aquatic invasive species of concern in the mid-Atlantic region of the United States. Here, Yersina ruckeri was isolated from moribund Blue Catfish...
Nanometer-scale relationships between sedimentary organic matter molecular composition, fluorescence, cathodoluminescence, and reflectance: The importance of oxygen content at low thermal maturities
Aaron M. Jubb, Paul C. Hackley, Ryan J. McAleer, Jing Qu
2025, Organic Geochemistry (204)
Molecular characterization of sedimentary organic matter (SOM), termed macerals, is a common goal when seeking to understand petroleum generation as well as other geologic processes in deep time. However, unambiguous measurement of discrete macerals is challenging due to the small size of organic particles in sedimentary rocks, the proximity of...
Streamflow response to glacier mass loss varies with basin precipitation across Alaska
Janet H. Curran, Brianna Rick, Jeremy S. Littell, Louis C. Sass
2025, Water Resources Research (61)
Diminishing glaciers affect streamflow, and given the extent of glaciers in Alaska and adjacent Canada, continued glacier mass loss is likely to have profound effects on ecosystems sensitive to runoff. The effects of glacier mass loss on streamflow are likely to vary across the wide ranges of basin size, glacier...
Optimizing control of a freshwater invader in time and space
Jessica O. Diallo, Sarah J. Converse, Matthew Chmiel, Andy Stites, Julian D. Olden
2025, Ecological Applications (35)
The global spread of invasive species in aquatic ecosystems has prompted population control efforts to mitigate negative impacts on native species and ecosystem functions. Removal programs that optimally allocate removal effort across space and time offer promise for improving invader suppression or eradication, especially given the limited resources available to...
Origin stories: How does learned migratory behaviour arise in populations?
Janey Fugate, Cody F. Wallace, Ellen O. Aikens, Brett Jesmer, Matthew J. Kauffman
2025, Biological Reviews (100) 996-1014
Although decades of research have deepened our understanding of the proximate triggers and ultimate drivers of migrations for a range of taxa, how populations establish migrations remains a mystery. However, recent studies have begun to illuminate the interplay between genetically inherited and learned migrations, opening the door to the evaluation...
Sprague’s Pipits (Anthus spragueii) occupying high-elevation intermontane valley habitat throughout the breeding season in southwest Montana
Andrew C. Staufer, Emilie K. Maggs, Erik A. Beever, Adam E. Mitchell
2025, Western North American Naturalist (85) 80-86
Sprague's Pipit (Anthus spragueii) is an imperiled bird species that breeds in grasslands of the northern Great Plains of North America. While conducting avian surveys in the Centennial Valley, Beaverhead County, southwest Montana, during spring and summer 2023, we detected approximately 10 male Sprague's Pipits performing aerial displays. These represent...
Genomic and epidemiological investigations reveal chromosomal integration of the acipenserid herpesvirus 3 genome in Lake Sturgeon Acipenser fulvescens
Sharon Clouthier, Umberto Rosani, Arfa Khan, Qiuwen Ding, Eveline J. Emmenegger, Zhuozhi Wang, Thomas Nalpathamkalam, Bhooma Thiruvahindrapuram
2025, Viruses (17)
DNA sequence from a new alloherpesvirus named acipenserid herpesvirus 3 (AciHV-3) was found in sturgeon species that are vulnerable to decline globally. A study was undertaken to develop a better understanding of the virus genome and to develop diagnostic tools to support an epidemiological investigation. A 184,426...
Pediment formation and subsequent erosion in Gale crater: Clues to the climate history of Mars
A.B. Bryk, W.E. Dietrich, Kristen A. Bennett, V.K. Fox, C.M. Fedo, M.P. Lamb, E.S. Kite, L.M. Thompson, S. G. Banham, J. Schieber, J.A. Grant, A.R. Vasavada, A.A. Fraeman, Lauren A. Edgar, P. J. Gasda, R.C. Wiens, J.P. Grotzinger, K. Stack-Morgan, R.E. Arvidson, Olivier Gasnault, S. Le Mouelic, S. Gupta, R.M.E. Williams, R.Y. Sheppard, K.W. Lewis, D.M. Rubin, W. Rapin, M.N. Hughes, M. Turner, S.A. Wilson, J.M. Davis, R.E. Kronyak, L. Le Deit, L.C. Kah, J. Frydenvang, R.J. Sullivan, C.C. Bedford, E. Dehouck, H.E. Newsom, M.C. Malin
2025, Icarus (430)
Evidence of paleo-rivers, fans, deltas, lakes, and channel networks across Mars has prompted much debate about what climate conditions would permit the formation of these surface water derived features. Pediments, gently sloping erosional surfaces of low relief developed in bedrock, have also been identified on Mars. On Earth, these erosional...
Multiyear crop residue cover mapping using narrow-band vs. broad-band shortwave infrared satellite imagery
Brian T. Lamb, W. Dean Hively, Jyoti Jennewein, Alison Thieme, Alexander M. Soroka, Leticia Santos, Daniela Jones, Steven Mirsky
2025, Soil and Tillage Research (251)
Crop residue serves an important role in agricultural systems as high levels of fractional crop residue cover (fR) can reduce erosion, preserve soil moisture, and build soil organic carbon. However, the ability to accurately quantify fR at scale has been limited. In this study we produced annual maps of fR for farmland in Maryland,...
Acute Toxicity of 4-hydroxydiphenylamine (4-HDPA) and N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine-quinone (6PPDQ), transformation products of 6PPD, to early instars of the mayfly, Neocloeon triangulifer
David J. Soucek, Rebecca A. Dorman, Jeffery A. Steevens, Viviane Yargeau, Marco Pineda, Erin Bennett, Chris Metcalfe
2025, Environmental Toxicology & Chemistry (44) 1369-1377
Our analysis of water samples collected during a rain event from two urban rivers in the Greater Toronto area, Ontario, Canada, indicated that selected transformation products (TPs) of the tire antioxidant, N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD), including 6PPD-quinone (6PPDQ) and 4-hydroxydiphenylamine (4-HDPA), were present at concentrations >1 µg/L. In acute (96-hr) toxicity tests with...
Living with uncertainty: Using multi-model large ensembles to assess emperor penguin extinction risk for the IUCN Red List
Stephanie Jenouvrier, Alice Eparvier, Bilgecan Sen, Francesco Ventura, Christian Joseph Che-Castaldo, Marika Holland, Laura Landrum, Kristen Krumhardt, Jimmy Garnier, Karine Delord, Christophe Barbraud, Philip Trathan
2025, Biological Conservation (305)
Improved methods for identifying species at risk are needed to strengthen climate change vulnerability assessments, as current estimates indicate that up to one million species face extinction due to environmental changes. Integrating multiple sources of uncertainty enhances the robustness of Red List of Threatened Species assessments, providing a more comprehensive...
Nature-based solutions could offset coastal squeeze of tidal wetlands from sea-level rise on the U.S. Pacific coast
Karen M. Thorne, Kevin J. Buffington, Michael Osland, Bogdan Chivoiu, James Grace, Nicholas Enwright, Glenn R. Guntenspergen
2025, Scientific Reports (15)
In this study, we explored the opportunities for tidal wetland landward migration in response to sea-level rise on the Pacific Coast of the United States. By employing a systematic spatial approach, we quantified the available space for wetland migration with sea-level rise across 61 estuarine drainage areas. Although many of...
Assessing the effect of coral reef restoration location on coastal flood hazard along the San Juan Coastline, Puerto Rico
Ramin Familkhalili, Curt D. Storlazzi, Michael Nemeth, Shay Viehman
2025, Frontiers in Marine Science (12)
Coastal resilience has become a pressing global issue due to the growing vulnerability of coastlines to the effects of climate change. Nature-based solutions have emerged as a promising approach to coastal protection to not only enhance coastal resilience, but also restore critical ecosystems. Coral reef restoration has the potential to...
Looking for Lazarus: Environmental DNA (eDNA) surveillance of the federally threatened Slender Chub (Erimystax cahini) in the Clinch and Powell Rivers
R.T. Paine, Mark W. Rogers, Amanda E. Rosenberger
2025, Southeastern Naturalist (24) 37-56
Erimystax cahni (Slender Chub) is a federally threatened fish native to the Powell, Clinch, and lower Holston rivers of Tennessee and Virginia. No individuals have been captured or reported for over 2 decades. We developed a species-specific environmental DNA (eDNA) assay to survey for its presence throughout its native distribution in...
Temporal and spatial comparison of coal mine ventilation methane emissions and mitigation quantified using PRISMA satellite data and on-site measurements
C. Ozgen Karacan, Itziar Irakulis-Loitxate, Robert A. Field, Peter D. Warwick
2025, Science of the Total Environment (975)
Emission monitoring at the facility level (bottom-up, BU) is key for accurate reporting of coal mine methane (CMM) emissions. Recent advances in aerial and satellite observations (top-down, TD) indicate that these methods have the potential to support CMM emissions monitoring and reporting of, as well as track the effectiveness of,...
Seismic intensities, ground motions and basin amplification from the 2022 Mw 6.4 Ferndale, California intraslab earthquake
Leyla Mariam Namazie, Rebecca Medley, Walter D. Mooney
2025, Seismological Research Letters (96) 2796-2811
On December 20, 2022, a Mw 6.4 earthquake occurred at a depth of 18 km within the subducting Gorda plate in the Mendocino Triple Junction (MTJ), one of the most seismically active regions of the contiguous United States, causing widespread damage to local communities. Here we document the seismic intensities,...
Intraspecific variation in masting across climate gradients is inconsistent with the environmental stress hypothesis
Jessie Foest, Thomas Caignard, Ian S. Pearse, Michal Bogdziewicz, Andrew Hacket-Pain
2025, Ecology (106)
Year-to-year variation in seed crop size (i.e., masting) varies strongly among populations of the same species. Understanding what causes this variation is vital, as masting affects the ability of tree species to regenerate and determines the population dynamics of a wide variety of animals. It is commonly...
Identifying recruitment sources across trophic levels in a large river food web
Shaley A. Valentine, Kristen L. Bouska, Gregory W. Whitledge
2025, Ecology and Evolution (15)
Assemblages are connected through the movement of physical and biological resources including recruits. Identifying recruitment sources for predators and their prey could help us understand how assemblages use connectivity across multiple trophic levels and whether predator and prey recruitment is coupled. Recruitment sources of organisms across multiple trophic levels can...
Are we heading towards a global decrease in coregonine catches?
Orlane Anneville, Benjamin Alric, Chun-Wei Chang, Jan Baer, Fabien Bourinet, Alexander Brinker, David B. Bunnell, Chloe Goulon, Kerstin Holmgren, Chih-hao Hsieh, Yamin Janjua, Yu-Chun Kao, Kulli Kangur, Alfred Sandstrom, Eugene A. Silow, Xinhua Zhu
2025, International Journal of Limnology (61)
Coregonines have specific ecological needs, making them potentially very vulnerable to changes in lake conditions. A contemporary concern is that many lakes worldwide are experiencing environmental changes due to anthropogenic pressure and climate warming. Here, we compiled long-term data of coregonine catches from 27 lakes from three continents in the...
Pathways for potential exposure to onshore oil and gas wastewater: What we need to know to protect human health
Ayusha Ariana, Isabelle M. Cozzarelli, Cloelle Danforth, Bonnie McDevitt, Anna Rosofsky, Donna Vorhees
2025, Environmental Health Perspectives (9)
Produced water is a chemically complex waste stream generated during oil and gas development. Roughly four trillion liters were generated onshore in the United States in 2021 (ALL Consulting, 2022, https://www.gwpc.org/wp-content/uploads/2021/09/2021_Produced_Water_Volumes.pdf). Efforts are underway to expand historic uses of produced water to offset freshwater needs in water-stressed regions,...
Scent detection dogs detect a species of hard tick, Dermacentor albipictus, with comparable accuracy and efficiency to traditional tick drag surveys
Troy Koser, Aimee Hurt, Laura Thompson, Courtemanch, Benjamin Wise, Paul C. Cross
2025, Parasites and Vectors (18)
BackgroundAccurate surveillance data are critical for addressing tick and tick-borne pathogen risk to human and animal health. Current surveillance methods for detecting invading or expanding tick species are limited in their ability to scale efficiently to state or national levels. In this study we explored the potential use...
High-precision U-Pb data and reference age for Emerald Lake apatite
Francisco Apen, Sean Patrick Gaynor, Blair Schoene
2025, Data in Brief (60)
New isotope dilution thermal ionization mass spectrometry U-Pb data for Emerald Lake apatite demonstrate its potential as a reference material for geochronology. A three-dimensional 238U/206Pb-207Pb/206Pb-204Pb/206Pb isochron produces a 95.2 ± 1.1 Ma date with an initial Pb isotopic composition of 206Pb/204Pb = 18.85 ± 0.19 and 207Pb/204Pb = 15.68 ± 0.10 (n =...
