Global glacier mass change in 2025
Michael Zemp, Ethan Z. Welty, Samuel U. Nussbaumer, Jacqueline Bannwart, Isabelle Gärtner-Roer, Albin Wells, Andreas Peter Ahlstrøm, Brian Anderson, Liss Marie Andreassen, Mohd. Farooq Azam, Jamie Barnett, Carlo Baroni, Nicholas Edward Barrand, Andreas Bauder, Eric Bernard, Etienne Berthier, Giulia Bertolotti, Tobias Bolch, Mylène Bonnefoy-Demongeot, Matthias H. Braun, David Burgess, David Cappelletti, Jonathan L. Carrivick, Luca Carturan, Daniele Cat Berro, Jorge Luis Ceballos, Guillermo Cobos, Rolando Cruz, Nicolas Cullen, Bolívar Cáceres, Johanna Dahlkvist, Otgonbayar Demberel, Simon de Villiers, Roberto Dinale, Eugene Drozdov, Inés Dussaillant, Luzmila Dávila, Nelly Elagina, Hallgeir Elvehøy, Alexander Erofeev, Daniel Falaschi, Andrea Fischer, Mauro Fischer, Caitlyn Florentine, Koji Fujita, Stephan Peter Galos, Ayon Garcia, Noel Gourmelen, Federico Grosso, Afanasiy Gubanov, Andri Gunnarsson, Anne Guyez, Lea Hartl, Martin Hoelzle, Jorge Huenante, Romain Hugonnet, Matthias Huss, Bernhard Hynek, Takuro Imazu, Rodolfo Iturraspe, Livia Jakob, Sharad Joshi, Neamat Karimi, Nina Kirchner, Bjarne Kjøllmoen, Jack Kohler, Stanislav Kutuzov, Ivan Lavrentiev, James Matthew Lea, Amerigo Lendvai, Huilin Li, Shenghai Li, Zhongqin Li, Andreas Linsbauer, Sebastián Marinsek, Enrico Mattea, Christoph Mayer, Christopher McNeil, Luca Mercalli, Alexandra Messerli, Carolyn Michael, Umberto Morra di Cella, Francisco Navarro, Hofiz Navruzshoev, Anton Neureiter, Gennady Nosenko, Massimo Pecci, Mauri Pelto, Victor Popovnin, Rainer Prinz, Carla Puigdomenech, Heather Purdie, Finnur Pálsson, Alberto Rossotto, Lucas Ruiz, Louis Sass, Erik Schytt Mannerfelt, Riccardo Scotti, Donghui Shangguan, Brenda Shepherd, Delphine Six, Andrey Smirnov, Ireneusz Sobota, Markus Strudl, Shin Sugiyama, Emmanuel Thibert, Laura Thomson, Thorsteinn Thorsteinsson, Levan Tielidze, Florian Tolle, Pavel Toropov, Paolo Tuccella, Gulomjon Umirzakov, Ryskul Usubaliev, Lauren Vargo, Wei Yang, Bernhard Zagel
2026, Nature Reviews Earth and Environment (7) 213-215
Glaciers lost 408 ± 132 Gt of mass during the hydrological year 2025, equivalent to 1.1 ± 0.4 mm sea-level rise. Since 1975, glacier mass loss has totalled 9,583 ± 1,211 Gt, equivalent to 26.4 ± 3.3 mm of sea-level rise, with six of the highest mass-loss years on record...
When is a parasite a problem?
Kevin D. Lafferty
James E. Byers, April M. Blakeslee, John P Wares, editor(s)
2026, Book chapter, The ecology and evolution of marine parasites and disease
A parasite’s perceived societal impact depends on the disease it causes and the perception of the affected host species. For instance, doctors and veterinarians have a mission to treat parasites that infect humans or that impact host species that have some utilitarian or aesthetic value for society. Marine scientists have...
Growth, movement, and survival of precocial shorebird chicks are constrained by their environment.
Feipeng Huang, Chris Tyson, Brett R. Addis, Cory Elowe, Lauren Puleo, Stephan Saint-Juste, Maria Stager, Rose J. Swift, Luke Wilde, Nathan R. Senner
2026, Behavioral Ecology (37)
Young animals are often less mobile than adults, while also having high energetic demands. They may therefore be more vulnerable to local-scale changes in environmental conditions. In particular, when 1 sex must grow more rapidly than the other to achieve a larger adult size, that sex may experience especially dramatic...
First vertebrate assemblage from the middle member of the Fremouw Formation (Lower Triassic) of Antarctica
C. Henrik Woolley, Julia A. McIntosh, Roger M.H. Smith, Christian A. Sidor
2026, Antarctic Science (38) 278-297
The Fremouw Formation of the Central Transantarctic Mountains preserves the southernmost record of Early to Middle Triassic terrestrial ecosystems that developed in the aftermath of the end-Permian mass extinction. Although the well-studied vertebrate fossil assemblage in the lower member of the Fremouw Formation provides a detailed snapshot...
Satellite tracking of Galapagos Petrel Pterodroma phaeopygia reveals distribution and movements during chick rearing
Carolina B. Proaño, Sebastian M. Cruz, Josh Adams, Martin Wikelski
2026, Marine Ornithology: Journal of Seabird Research and Conservation (54) 63-74
We tracked 19 adult Galapagos Petrels Pterodroma phaeopygia during the chick-rearing seasons in 2009 and 2010 (Santa Cruz Island [n = 16] and Floreana Island [n = 3]) in the Galápagos Islands, Ecuador. Eight petrels performed 27 complete foraging trips lasting 0.6 to 18.8 days. Short trips (3.2 ± 2.1 days; 785 km; max displacement 671 km) and long trips...
Drought resistance is greater in montane conifers compared to coastal conifers in northern California
Gabriel J. Roletti, Rosemary L. Sherriff, Lucy P. Kerhoulas, Wallis Robinson, Jill J. Beckmann, Phillip J. van Mantgem
2026, Forest Ecology and Management (612)
Frequent and intense droughts are rapidly altering stand dynamics in western North American forests. The ecological and geographical diversity of northern California provides a unique opportunity to measure these responses across species, habitat types, and levels of competitive pressure. This study used dendrochronological techniques and linear mixed-effects models to assess...
Events during migration and winter
Aaron T. Pearse, Courtney L. Amundson, Mark P. Vrtiska
Bart M. Ballard, Michael G. Brasher, Joseph P. Fleskes, editor(s)
2026, Book chapter, Migrating and wintering waterfowl
No abstract available....
Long-term monotonic trends in water budget components in the contiguous United States: Insights from two hydrologic models
Phillip J. Goodling, Sydney Foks, Jessica Ayers
2026, Journal of the American Water Resources Association (62)
Characterizing changes to water availability for domestic, industrial, agricultural, and other uses is essential to support water management. To better quantify these changes, the U.S. Geological Survey and National Science Foundation National Center for Atmospheric Research produced two hydrologic models simulating water budget components from 1980 to 2021 over the...
Distribution and abundance of Least Bell’s Vireo (Vireo bellii pusillus) and Southwestern Willow Flycatcher (Empidonax traillii extimus) at the Hansen Dam Basin, Los Angeles County, California—2025 data summary
Suellen Lynn, Barbara E. Kus
2026, Data Report 1222
Executive Summary We surveyed for Least Bell’s Vireos (Vireo bellii pusillus; vireo) and Southwestern Willow Flycatchers (Empidonax traillii extimus; flycatcher) along Big Tujunga Creek in the Hansen Dam Basin in Los Angeles County, California, in 2025. Four vireo surveys were completed between April 17 and July 2, 2025, and three flycatcher...
Deep groundwater total dissolved solids mapping in the Dakota Group, Williston Basin, USA
Michael J. Stephens, Bennett Eugene Hoogenboom, Lyndsay B. Ball, Will Chang
2026, Groundwater
Growing concern about the quantity of available freshwater around the world has led to interest in surveying groundwater total dissolved solids (TDS) below water well depths. Deep TDS has not been systematically mapped, and there is much to learn about the distribution and controls on deeper groundwater. In sedimentary basins...
Sampling and analysis plan for the water-quality monitoring program in Lake Koocanusa and upper Kootenai River, Montana, water years 2022–23
Lindsey R. King, Sara L. Caldwell Eldridge, Melissa A. Schaar, Travis S. Schmidt, Thomas Chapin, Ashley M. Bussell
2026, Open-File Report 2026-1005
The U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, collected water-quality samples and environmental data in Lake Koocanusa (also known as “Koocanusa Reservoir”), the Kootenai River, and the Tobacco River during water years 2022–23. The transboundary Lake Koocanusa is in southeastern British Columbia, Canada, and northwestern Montana,...
Seabed maps showing topography, ruggedness, backscatter intensity, sediment mobility, and the distribution of geologic substrates in quadrangle 3 of the Stellwagen Bank National Marine Sanctuary region offshore of Boston, Massachusetts
Page C. Valentine, VeeAnn A. Cross
2026, Scientific Investigations Map 3544
The U.S. Geological Survey, in cooperation with the National Marine Sanctuary Program of the National Oceanic and Atmospheric Administration, has conducted seabed mapping and related research in the Stellwagen Bank National Marine Sanctuary (SBNMS) region since 1993. The area being mapped using geophysical and geological data includes the SBNMS and...
Methods for estimating daily upstream location of the freshwater-saltwater interface along the Maurice and Cohansey Rivers, New Jersey
Jennifer L. Closson, Thomas P. Suro, Lukasz M. Niemoczynski
2026, Scientific Investigations Report 2025-5090
The Delaware River basin (DRB) provides drinking water to 15 million people in the surrounding area. Water is frequently withdrawn from the freshwater reaches of streams, above head of tide, in the DRB for use as public drinking water. During extended periods of low flow, saltwater can move upstream, which...
Thickness and other characteristics of overbank sediment deposited during an extreme flood in May 1978 along the Powder River, Montana
John A. Moody, Robert H. Meade
2026, Scientific Investigations Report 2026-5122
An extreme flood on the Powder River in southeastern Montana in May 1978 inundated its valley and deposited sediment on the floodplains and terraces at multiple heights. The recurrence interval for this flood was less than 1 percent in the reach between Moorhead and Broadus, Montana. Peak discharges at the...
Geologic map of the Emmons Lake volcanic center, Alaska
Thomas P. Miller, Christopher F. Waythomas, Margaret T. Mangan, Frank A. Trusdell, Andrew T. Calvert
2026, Scientific Investigations Map 3519
Introduction The Emmons Lake volcanic center is a spatially clustered group of stratovolcanoes and calderas in the southwestern part of the Alaska Peninsula, Alaska. The volcanic center is characterized by several ice- and snow-clad stratovolcanoes located within and along the margins of a nested-caldera complex that includes Emmons Lake. A shieldlike...
Distribution and threats to the Arizona toad in Clark County
Kenzi M Stemp, Blake Hossack
2026, Final Project Report D18
The Arizona Toad (Anaxyrus microscaphus) has been petitioned for protection under the U.S. Endangered Species Act (ESA) and is under evaluation for inclusion as a Covered Species under the Clark County Multi Species Habitat Conservation Plan Amendment (Clark County Department of Comprehensive Planning and USFWS, 2001; USFWS, 2015b). Although the...
Field evaluation of the Automated Barge Clearing Deterrent (ABCD): Hydrodynamic, navigation, and fish response effects
S. Jarrell Smith, Jessica Z. LeRoy, Charles Wainwright, Michael Glubzinski
2026, Technical Report ERDC/CHL TR-26-7
The escape and subsequent spread of invasive carp (notably, bighead carp [Hypophthalmichthys nobilis] and silver carp [H. molitrix]) from aquaculture ponds and sewage lagoons into the Mississippi and Illinois Rivers poses a significant risk to further spread of these fish into the Great Lakes. Prior research demonstrated that commercial tows...
Excessive phosphorus loading contributes to future vulnerability of mangrove ecosystems by reducing net ecosystem exchange of carbon
Ken W. Krauss, Jeremy R. Conrad, Jamie A. Duberstein, Eric J. Ward, Judith Z. Drexler, Kevin J. Buffington, Brian W. Benscoter, Haley Jane Miller, Natalie T. Faron, Sergio Merino, Andrew From, Elitsa I. Peneva-Reed, Zhiliang Zhu, Karen M. Thorne, Ilka C. Feller
2026, Coastal Futures (4)
J.N. “Ding” Darling National Wildlife Refuge (DDNWR) is located on Sanibel Island along the southwestern coast of Florida, USA. There, eutrophication attributed to agricultural discharge along the Caloosahatchee River has affected the area’s aquatic habitat. In anticipation of additional nutrient loading, we experimentally fertilized mangrove forests with nitrogen (+N; NH4)...
Geochemical disequilibrium at the brittle-ductile transition
Raphael Gottardi, Ryan J. McAleer, Gabriele Casale, Martin Wong
2026, Geochemistry, Geophysics, Geosystems (27)
We investigate the microtextural, microchemical, and isotopic effects of late-stage ductile deformation in quartzite mylonites and kyanite–muscovite–quartz veins from the Raft River shear zone (Utah). Quartz microstructures record pervasive disequilibrium, expressed by unannealed features including undulatory extinction, deformation lamellae, and poorly defined fabrics, typical of waning deformation in shear zones....
Tsunami hazards posed by sublacustrine landslides in Lake Quinault, Washington State
SeanPaul La Selle, Finn Løvholt, Steven Gibbons
2026, Report
No abstract available....
Making many out of one: Synthetic geologic deformation model distributions for use in USGS NSHM25‐PRVI Puerto Rico-U.S. Virgin Island update
Alexandra Elise Hatem, Kevin Ross Milner, Richard W. Briggs, Jessica A. Thompson Jobe
2026, Seismological Research Letters
A key use‐case of geologic slip rates is within deformation models used in probabilistic seismic hazard analyses. Field‐derived geologic slip rates have formed the cornerstone of deformation models in such applications for decades. Recent advancements in seismic hazard analyses have expanded the use of faults for which geologic slip rates...
Low streamflows in Massachusetts: Variability over space and time and relations with climatic and basin variables
Catherine A. Chamberlin, Glenn Hodgkins
2026, Journal of the American Water Resources Association (62)
Streamflows in Massachusetts have set record lows in recent years despite generally wetter conditions than during the drought of the 1960s, and the reasons for this are not known. To analyse potential drivers of low streamflows in Massachusetts, six low-flow metrics were computed at 107 streamgages. These metrics represent low-flow...
Early Miocene volcanic rocks and associated tectonics, Lava Hills and southern Bristol Mountains, California
David M. Miller, Janet Harvey, David C. Buesch, Phillip B. Gans
2026, Conference Paper, Miocene Mojave: The volcanic story: Desert Symposium field guide and proceedings
Volcanic rocks of latest Oligocene to early Miocene age form an east-west belt across part of the central eastern Mojave Desert from the Whipple Mountains on the east to the Rosamond Hills on the west. We term this the central belt because it is separated from northern and southern belts...
Letter from leadership
Aaron Lien, Stephanie Anne McAfee
2026, Newsletter
No abstract available....
Small cumulative survival costs of enzootic disease could suppress long-term population size
Brad M. Glorioso, Graziella V. DiRenzo, Jeffrey M. Lorch, Brittany A. Mosher, David A.W. Miller, Evan H. Campbell Grant, Hardin Waddle
2026, Royal Society Open Science (13)
Fungal pathogens can cause epizootics that result in widespread mortality and rapid population declines in some species. However, even in the absence of high disease-induced mortality, enzootic mycoses could have large-scale impacts on host population dynamics. Here, we examined the effects of ophidiomycosis, an enzootic fungal disease, on a Louisiana...
