Unprecedented burning in tropical peatlands during the 20th century compared to the previous two millennia
Yuwan Wang, Ted R. Feldpausch, Graeme T. Swindles, Patrick Moss, Hamish A. McGowan, Thomas G. Sim, Paul J. Morris, Adam Benfield, Colin Courtney-Mustaphi, David Wahl, Encarni Montoya, Esther N. Githumbi, Euridice N. Honorio Coronado, Femke Augustijns, Gert Verstraeten, Jess O'Donnell, John Tibby, Juan C. Benavides, K. Anggi Hapsari, Karsten Schittek, Khairun Nisha Mohamed Ramdzan, Kunshan Bao, Lydia E. Cole, Lysanna Anderson, Mariusz Galka, Orijemie Emuobosa Akpo, Paul Strobel, Prabhakaran Ramya Bala, Rene Dommain, Rob Marchant, Raman Sukumar, Sakonvan Chawchai, Sarath Pullyottum Kavil, Scott Mooney, Thomas J. Kelly, Yang Gao, Apostolos Voulgarakis, Arnoud Boom, Chantelle Burton, Juan Carlos Berrio, Kelly Ribeiro, Liana O. Anderson, Mark Hardiman, Molly Spater, Susan E. Page, Angela Gallego-Sala
2026, Global Change Biology (32)
Tropical peatland wildfire incidence has risen in recent decades, driven by drainage for land use and intensified by severe droughts with global climate change. These disturbances have altered vegetation structure, disrupted ecosystem functioning, and increased carbon emissions, particularly in Southeast Asia. However, the long-term history and characteristics of wildfires in...
Sackung at Bald Eagle ridge, central Colorado: An updated interpretation of ridge-spreading movement, structures, and mechanisms from 50 years (1975–2025) of U.S. Geological Survey research
Jeffrey A. Coe, Nikita N. Avdievitch, Kate E. Allstadt, Elaine A. Collins, Erin K. Jensen, Olivia J. Hoch, Lauren N. Schaefer, Chester A. Ruleman, Jonathan W. Godt, Vince Matthews III
2026, Engineering Geology (366)
Slow gravitational failures of mountain peaks and ridges are poorly understood. Herein, we report on 50 years of studies at a slowly spreading castellate ridge in the Sawatch Range in central Colorado. The orientations of geomorphic-structural features indicate that the fractured Precambrian granitic rock underlying the ridge has extended and...
Current and near-future conditions of aquatic spatial data for use in ecological models in the United States
Grace C. Henderson, Peder Engelstad, Cameron J. Reimer, Shelby K. LeClare, Linnea S. Fraser, Demetra A. Williams, Keana S. Shadwell, Wesley M. Daniel, Ian A. Pfingsten, Catherine S. Jarnevich
2026, Knowledge and Management of Aquatic Ecosystems
To address increasing demand for ecological models of aquatic species that can inform the management of national freshwater resources, we leveraged manager input to develop suites of environmental data layers characterizing freshwater habitats for the contiguous United States. Using the National Hydrography Dataset, these new data cover...
Ice sheet dynamics drive pronounced changes in the subsurface freshwater-saltwater interface
Julia Guimond, Aaron Mohammed, Barret L. Kurylyk, Michelle A. Walvoord, Victor F. Bense
2026, Geophysical Research Letters (53)
Saltwater is migrating into freshwater aquifers globally with water quality and biogeochemical implications, yet saltwater intrusion in glaciated regions is sparsely investigated. Field observations suggest that groundwater head in glaciated systems is influenced by ice sheet forcings and provides evidence that seawater infiltrated into offshore aquifers during past deglaciation events....
Spatial and temporal geochemical variations of lava flows and tephra deposits from the December 2020 to September 2024 eruptions of Kīlauea volcano
Drew T. Downs, Kendra J. Lynn, Heather Brianne Winslow, Steven P. Lundblad, Meghann F.I. Decker
2026, Bulletin of Volcanology (88)
Kīlauea volcano underwent dramatic morphological changes in 2018. That year recorded the end of the 35-year-long eruption of Puʻuʻōʻō (1983–2018) and 10-year-long (2008–2018) Halemaʻumaʻu lava lake and emplacement of the ~4-month-long lower East Rift Zone lava flows that coincided with ~500 m of summit caldera collapse. Starting on December 20, 2020,...
The U.S. Geological Survey 2025 Puerto Rico and U.S. Virgin Islands time-independent earthquake rupture forecast
Kevin Ross Milner, Alexandra Elise Hatem, Richard W. Briggs, Jessica Ann Thompson Jobe, Andrea L. Llenos, Andrew J. Michael, Allison Shumway, Edward H. Field, Kirstie Lafon Haynie
2026, Bulletin of the Seismological Society of America
We present the 2025 U.S. Geological Survey Puerto Rico and U.S. Virgin Islands (PRVI) time‐independent earthquake rupture forecast (ERF), developed for the 2025 update to the National Seismic Hazard Model (NSHM) for PRVI. The updated ERF improves upon a prior model from 2003, including an expanded fault inventory with slip‐rate...
Depositional interplay between the Ancestral Rocky Mountains and Ouachita–Marathon–Sonora orogenies: Insights from provenance records in the late Paleozoic Marfa Basin, West Texas, U.S.A.
Sandra Juárez-Zúñiga, Daniel F. Stockli, Benjamin G. Johnson, Timothy F. Lawton
2026, Basin Research (38)
The Marfa Basin in West Texas is a late Palaeozoic synorogenic depocenter associated with regional deformation linked to the Ancestral Rocky Mountains (ARM) and Ouachita–Marathon–Sonora (OMS) orogenies in southwestern Laurentia. Basin strata range in age from Middle Pennsylvanian to the middle Permian and include the Cieneguita, Alta, Pinto Canyon, Rose...
Dog attacks on wild desert tortoises: A risk model
Andrea S. Carlson, Kristin H. Berry, Jeremy S. Mack
2026, Journal of Wildlife Management
We retrospectively compiled a database of 6,727 live, wild Agassiz's desert tortoises (Gopherus agassizii) and evaluated them for clinical signs of trauma to shell and limbs at 50 sites in the Mojave and Colorado (western Sonoran) deserts of California, USA, spanning the years 1977–2006. Our objectives were...
Invasion resistance varies by fuel break type in sagebrush ecosystems
Austin L. Nash, Brianne E. Brussee, Cali L. Weise, Douglas J. Shinneman, Susan K. McIlroy, Sarah C. Webster, Steven R. Mathews, Seth J. Dettenmaier, Lea A. Condon, Michele R. Crist, Cameron L. Aldridge, Julie A. Heinrichs, Mark A. Ricca, Shawn T. O’Neil, Peter S. Coates
2026, Fire Ecology
Background Wildfire is an increasingly important driver of changes within sagebrush (Artemisia spp. L.) ecosystems of the western USA, often resulting in increased spread of exotic annual grasses, such as cheatgrass (Bromus tectorum L.), and subsequent losses of native vegetation and wildlife habitat. Fuel breaks— areas of land treated to...
Intertidal community responses to perturbations along Alaska park coastlines
Sarah Beth Traiger, Brenda Ballachey, Heather Coletti, Daniel Esler
2026, Alaska Park Science (24) 72-79
Nearshore ecosystems are highly productive zones with strong connections to both terrestrial and open ocean ecosystems. The rocky intertidal is a highly dynamic ecosystem and changes over a variety of spatial and temporal scales depending on the factors contributing to the change. Here we summarize how nearshore communities and species responded to several perturbations...
Investigating the role of lake environments and food chains on the transfer of mercury to lake trout
Sarah M. Laske, Krista K. Bartz, Daniel Young
2026, Alaska Park Science (24) 46-55
Mercury contamination can pose threats to fish, wildlife, and people. Methylmercury, found in fish, can be particularly detrimental, especially to children. This study explores the sources and concentrations of mercury and proposes how people can become aware and limit their exposure....
Cyanobacteria and aquatic ecosystem dynamics across 28,000 years of environmental changes in subtropical North America
Savvas Paradeisis-Stathis, Matthew N. Waters, Debra A. Willard, Richard S. Vachula
2026, Quaternary Science Reviews (376)
Ecological pressures on aquatic ecosystems have increased over recent centuries due to human activities and climate change. However, contextualizing ecosystem deterioration is often challenging due to limited knowledge of environmental changes over millennial timescales. Subtropical Carolina bays in North Carolina, USA, have remained unglaciated, preserving paleolimnological records that extend back...
Evaluating drivers of environmental change in a lake sediment core: Insights from spectroscopic metrics of water-extractable organic matter and stable carbon isotopes
A.C. Collins, Sabina R. Gifford, Morgan Schaller, Aron Stubbins, Sasha Wagner, Kevin Alexander Ryan
2026, Applied Geochemistry (202)
Freshwater lakes play a critical role in the global carbon cycle by storing and transforming organic matter (OM) from both terrestrial and aquatic sources. Small lakes in northern temperate regions, despite their limited surface area, disproportionately influence regional carbon budgets. Buried sediments integrate OM inputs over time and archive ecosystem...
Summertime methane and carbon dioxide emission rates and associated variables from a national-scale survey of 146 reservoirs in the United States
Jake J. Beaulieu, Bridget R. Deemer, R.M. Pilla, Kenneth J. Forshay, J.W. Hollister, S.A. Jacobs, J.T. Walker, P.T. Leinenbach, Natalie A. Griffiths, S.D. Shivers, A.O. Tatters, K.N. Buckler, J.W. Corra, Ryan W. Daly, A.N. Djurkovic, S.R. Fulgham, P.L. Goodwin, L.G. Herger, M.W. Jones, N.J. Jones, L.A. Juilfs, C.M. Langstroth, M.E. Mitchell, J.R. Oliveria, B.M. Richmond, J.W. Schroeder
2026, Limnology and Oceanography Letters (11)
Reservoirs are globally important sources of greenhouse gases, but the magnitude of their emissions is highly uncertain. Here we present data for 146 reservoirs from two surveys of reservoir methane and carbon dioxide emissions, one at the regional scale in the midwestern United States and one at the national scale...
Sentinel-2 for chlorophyll-a water quality monitoring: A review of validation evidence and application potential
Sarah Goodrich, Blake Schaeffer, Kate Meyers, Wilson Barg Salls, Tyler V. King, Bridget N. Seegers, Olivia Cronin-Golomb, David Demaree, Molly Reif
2026, International Journal of Remote Sensing
Water quality monitoring is integral to preserving the health of freshwater ecosystems, and satellite remote sensing has emerged as one monitoring method. Sentinel-2, in particular, has been valuable for water quality monitoring due to its 5-day global temporal revisit time and spatial resolution that ranges from 10...
Resilience thinking for human-wildlife coexistence: Bridging dynamic systems, archetypes, and transformations
Neil H. Carter, Erin K. Buchholtz, Jenny Anne Glikman, A. Sofía Nanni, Mahi Puri
2026, Ambio (55) 1003-1010
As human activities and wildlife increasingly overlap in the Anthropocene, conventional conservation paradigms focused on land-sparing are shifting toward strategies that support human–wildlife coexistence. However, achieving sustainable coexistence is often hindered by a limited understanding of the dynamic social–ecological processes that drive integrated human–wildlife systems. This Special...
Spatial behavior of socially isolated wild pigs (Sus scrofa) following sounder removal via trapping
Sebastian Gomez-Maldonado, Matthew T. McDonough, Jonathon Joseph Valente, Mark D. Smith, Stephen S. Ditchkoff
2026, Pest Management Science
BACKGROUNDThe rapid expansion of wild pig (Sus scrofa) populations across North America, coupled with increased concern over disease transmission, has intensified the need for effective management strategies. Trapping is widely regarded as the most effective control method; however, trapping events often fail to capture entire sounders. The...
Multi-site evaluation of a postfire debris-flow runout forecast method
Katherine R. Barnhart, Jason W. Kean, Donald N. Lindsay, Eric Leland Bilderback
2026, Earth's Future (14)
Postfire debris flows pose a hazard to human life, property, and infrastructure when they travel from steep source areas to urbanized alluvial fans or other developed areas. Existing methods for rapid (<1 week) postfire debris-flow hazard assessment document the increase in the likelihood and size of debris flows as the magnitude...
Epigenetics in captivity: Restoring wild phenotypes in captive-reared salmonids
Tia Attfield, Andrew Edgar Honsey, Amanda Susanne Ackiss, Andreas Luek, Brian Meagher, Hayley Nuetzel, Ilana Koch, Julien April, Kristy Wakeling, Kyle Wellband, Raphael Bouchard, Sarah J. Lehnhert, Shawn R. Narum, Timothy Healy, Trevor E. Pitcher, Clare J. Venney
2026, Evolutionary Applications (19)
Captive rearing is a common practice for the stocking, conservation, and supplementation of fish species worldwide, but captive-reared fish can exhibit altered phenotypes leading to reduced fitness in nature compared to wild conspecifics. In salmonids, certain studies have found limited genetic differentiation between wild and captive-reared fish. However, documented changes...
ECCOE Landsat quarterly calibration and validation report—Quarter 3, 2025
Md Obaidul Haque, Nahid Hasan, Ashish Shrestha, Rajagopalan Rengarajan, Mark Lubke, Daniel Steinwand, Paul Bresnahan, Jerad L. Shaw, Kathryn Ruslander, Esad Micijevic, Michael J. Choate, Cody Anderson, Jeff Clauson, Kurt Thome, Amit Angal, Raviv Levy, Jeff Miller, Leibo Ding, Cibele Teixeira Pinto
2026, Open-File Report 2026-1069
Executive Summary The U.S. Geological Survey Earth Resources Observation and Science Calibration and Validation (Cal/Val) Center of Excellence (ECCOE) focuses on improving the accuracy, precision, calibration, and product quality of remote-sensing data, leveraging years of multiscale optical system geometric and radiometric calibration and characterization experience. The ECCOE Landsat Cal/Val Team continually...
Edible baits for systemic flea control, plague mitigation, and wildlife conservation: Evaluation of four active ingredients with three rodent species in western North America
David A. Eads, Marc R. Matchett, Magnus McCaffery, Ashlyn Hemmah, Angela R. Jarding, Jennifer Cordova, Heather Heimann, Stefano Liccioli, Laura E. Gardiner, Jordan Cormack, Holly Hicks, Jason Fly, Eddie Childers, Travis Livieri, Michelle L. Hladik, Dean E. Biggins
2026, International Journal of Parasitology: Parasites and Wildlife (29)
The flea-borne agent of plague, Yersinia pestis, is lethal to endangered black-footed ferrets (Mustela nigripes, BFFs) and the prairie dogs (Cynomys spp., PDs) on which BFFs depend for habitat and prey. We developed bait pellets containing insecticides for flea control with PDs. Individual baits contained 0.46, 0.91, 1.21, or...
Spatial units to support Lake Erie Cisco Coregonus artedi restoration
Joshua P. Egan, Amanda Susanne Ackiss, Andrew M. Muir
2026, Report
At the request of the Lake Erie Committee, spatial units for Lake Erie Cisco were delineated during spring 2024. Spatial units correspond to the reproductive habitat of extirpated (unoccupied spatial units) and extant (occupied spatial units) populations. Spatial units were delineated using a Council of Lake Committees-endorsed method that involves...
The effects of scientific uncertainty and values trade-offs on flow management decisions for an endangered fish
Brian Mahardja, William E. Smith, Brian D. Healy, Cameron Koizumi, Matthew L. Nobriga, Shawn Acuña, Brian A. Crawford, Kristin K. Arend, Michael C. Runge
2026, Ecosphere (17)
Consumptive use of freshwater is of concern in many estuarine ecosystems, and various frameworks have been used to prescribe environmental flows to benefit native species. However, few of these frameworks explicitly examine the potential trade-offs between socioeconomic and conservation-oriented values. This is exemplified in California, USA, where freshwater management has...
Assessment of undiscovered conventional oil and gas resources of South America and the Caribbean, 2025
Christopher J. Schenk, Tracey J. Mercier, Phuong A. Le, Andrea D. Cicero, Sarah E. Gelman, Jane S. Hearon, Benjamin G. Johnson, Jenny H. Lagesse, Heidi M. Leathers-Miller
2026, Fact Sheet 2026-3066
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean conventional resources of 37.6 billion barrels of oil and 281.6 trillion cubic feet of gas in 31 geologic provinces of South America and the Caribbean....
Finding the (small) cores: Spatial covariance tracks grassland bird community occupancy in fragmented grasslands
Lauren L. Berry, Brett Alexander DeGregorio, Daniel R. Uden, Caleb Powell Roberts
2026, Ecosphere (17)
Grasslands are an imperiled ecosystem, and grassland bird abundance is declining across North America. One of the strongest drivers for these declines is woody plant encroachment of grasslands. In the Great Plains and Sagebrush biomes of North America, spatial covariance—a remote-sensing metric for tracking boundaries between vegetation...
