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Browse more than 160,000 publications authored by our scientists over the past 100+ year history of the USGS.  Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.

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We are focused on some of the most significant issues society faces, and our science is making a substantial contribution to the well-being of the Nation and the world. Learn more about the major topics our research covers and the programs focused on those topics.

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Filter Total Items: 175538

Flexible phenology of a C4 grass linked to resiliency to seasonal and multiyear drought events in the American southwest Flexible phenology of a C4 grass linked to resiliency to seasonal and multiyear drought events in the American southwest

Rising temperatures are predicted to further limit dryland water availability as droughts become more intense and frequent and seasonal precipitation patterns shift. Vegetation drought stress may increase mortality and cause declines and delays in phenological events, thereby impacting species' capacity to persist and recover from extreme drought conditions. We compare phenological...
Authors
Rebecca A Finger-Higgens, David L. Hoover, Anna C. Knight, Daniel Rodolphe Schlaepfer, Michael C. Duniway
By
Ecosystems Mission Area, Southwest Biological Science Center

Paleo-scours within the layered sulfate-bearing unit at Gale crater, Mars: Evidence for intense wind erosion Paleo-scours within the layered sulfate-bearing unit at Gale crater, Mars: Evidence for intense wind erosion

The surface of modern Mars is largely shaped by wind, but the influence of past wind activity is less well constrained. Sedimentary rocks exposed in the lower foothills of Aeolis Mons, the central mound within Gale crater, record a transition from predominantly lacustrine deposition in the Murray formation to aeolian deposition in the Mirador formation. Here, we report a series of...
Authors
A.L. Roberts, S. Gupta, S.G. Banhan, A. Cowart, Lauren A. Edgar, W. Rapin, W.E. Dietrich, E.S. Kite, J.M. Davis, G. Caravaca, C.A. Mondro, P.J. Gasda, J.R. Johnson, Stéphane Le Mouélic, D.M. Fey, A.B. Bryk, G. Paar, R.A. Harris, A. Fraeman, A.R. Vasavada
By
Natural Hazards Mission Area, Astrogeology Science Center

Environmental persistence and toxicity of weathered wildland fire retardants to rainbow trout Environmental persistence and toxicity of weathered wildland fire retardants to rainbow trout

Long-term fire retardants are employed to combat and control wildfires by altering the way fuels burn, and they continue to decrease fire intensity after water in the retardant solution has evaporated. After application, fire retardants may persist on dry stream beds or in riparian habitats before precipitation events flush the retardant into intermittent streams. We exposed juvenile (30...
Authors
Christina M. Mackey, Michael G. Iacchetta, Holly J. Puglis
By
Ecosystems Mission Area, Columbia Environmental Research Center

Distribution and abundance of Least Bell’s Vireos (Vireo bellii pusillus) and Southwestern Willow Flycatchers (Empidonax traillii extimus) at the Mojave River Dam, San Bernardino County, California—2024 data summary Distribution and abundance of Least Bell’s Vireos (Vireo bellii pusillus) and Southwestern Willow Flycatchers (Empidonax traillii extimus) at the Mojave River Dam, San Bernardino County, California—2024 data summary

We surveyed for Least Bell’s Vireos (Vireo bellii pusillus; vireo) and Southwestern Willow Flycatchers (Empidonax traillii extimus; flycatcher) at the Mojave River Dam study area near Hesperia, California, in 2024. Four vireo surveys were completed between April 17 and July 2, 2024, and three flycatcher surveys were completed between May 23 and July 2, 2024. We detected three territorial...
Authors
Scarlett L. Howell, Barbara E. Kus
By
Ecosystems Mission Area, Western Ecological Research Center (WERC)

Using distance sampling with camera traps to estimate densities of ungulates on tropical oceanic islands Using distance sampling with camera traps to estimate densities of ungulates on tropical oceanic islands

Reliable population estimates are one of the most elementary needs for the management of wildlife, particularly for introduced ungulates on oceanic islands. We aimed to produce accurate and precise density estimates of Philippine deer (Rusa marianna) and wild pigs (Sus scrofa) on Guam using motion-triggered cameras combined with distance sampling to estimate densities from observations...
Authors
Richard J. Camp, Trevor M. Bak, Matthew D Burt, Scott Vogt
By
Ecosystems Mission Area, Pacific Island Ecosystems Research Center

Fine-resolution satellite remote sensing improves spatially distributed snow modeling to near real time Fine-resolution satellite remote sensing improves spatially distributed snow modeling to near real time

Given the highly variable distribution of seasonal snowpacks in complex mountainous environments, the accurate snow modeling of basin-wide snow water equivalent (SWE) requires a spatially distributed approach at a sufficiently fine grid resolution (
Authors
Graham A. Sexstone, Garrett Alexander Akie, David J. Selkowitz, Theodore B. Barnhart, David M. Rey, Claudia León-Salazar, Emily Carbone, Lindsay A. Bearup
By
Water Resources Mission Area, Colorado Water Science Center, Wyoming-Montana Water Science Center
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