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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 65,000 articles authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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In situ, modeled, and earth observation monitoring of surface water availability in West African rangelands In situ, modeled, and earth observation monitoring of surface water availability in West African rangelands
Introduction: Rangeland ponds are vital to the livelihoods of pastoral and agropastoral communities in Africa, providing an important source of water for livestock. However, sparse instrumentation across much of Africa makes it extremely challenging to monitor surface water availability in these areas. Model estimates of surface water, for example, as used by the Famine Early Warning...
Authors
Kimberly Slinski, Gabriel B. Senay, Alkhalil Adoum, Shraddhanand Shukla, Amy McNally, James Rowland, Erwan Fillol, Soni Yatheendradas, Chris Funk, Andrew Hoell, Michael Jasinski
Photodegradation of lignocellulose in plant litter – Reinterpreting data from Méndez et al. (2022) Photodegradation of lignocellulose in plant litter – Reinterpreting data from Méndez et al. (2022)
No abstract available.
Authors
Daryl L. Moorhead, Katherine E.O. Todd-Brown, Alexi C. Besser, Dellena Evelyn Bloom, Ashley Bonner, Alejandro Cueva, Thomas C. Ingalls, Jiwei Li, Sasha C. Reed, Isabel Torres, Heather L. Throop
Hybridization and asymmetrical introgression between the vulnerable Gray‐Headed Chickadee and a more abundant congener, the Boreal Chickadee: Implications for conservation Hybridization and asymmetrical introgression between the vulnerable Gray‐Headed Chickadee and a more abundant congener, the Boreal Chickadee: Implications for conservation
Hybridization is a common process among bird species that can precipitate a mix of positive or negative species outcomes. Particularly for rare populations, detrimental effects of hybridization on demographic growth rates and genetic integrity are of serious concern. In Alaska and a small region of northwestern Canada, the endemic subspecies of Gray-headed Chickadee (Poecile cinctus...
Authors
Matthew Armstrong, Robert E. Wilson, James A. Johnson, Travis L. Booms, Callie Gesmundo, Zachary M. Pohlen, Paul Leonard, Sarah A. Sonsthagen
A wavier polar jet stream contributed to the mid-20th century winter warming hole in the United States A wavier polar jet stream contributed to the mid-20th century winter warming hole in the United States
Winter waves in the polar jet stream are associated with extreme cold outbreaks and can modulate longer-term winter temperature trends in the mid-latitudes. Recent research has highlighted a positive trend in jet stream waviness from 1990 to 2010, with a hypothesized connection to Arctic amplification of anthropogenic warming. However, an increase in jet stream waviness has also been...
Authors
Jacob I. Chalif, Erich C. Osterberg, Trevor Fuess Partridge
REDPy: A Python tool for automated repeating earthquake detection and visualization REDPy: A Python tool for automated repeating earthquake detection and visualization
Detecting and cataloging seismic events are among the most fundamental tasks in seismology. Many standardized tools for these tasks exist, including the open‐source package repeating earthquake detector in Python (REDPy). REDPy generates an organized catalog of seismic events from continuous waveform data, in which events are automatically separated into groups (“families”) by their...
Authors
Alicia J. Hotovec-Ellis
Permafrost–wildfire interactions: active layer thickness estimates for paired burned and unburned sites in northern high latitudes Permafrost–wildfire interactions: active layer thickness estimates for paired burned and unburned sites in northern high latitudes
As the northern high-latitude permafrost zone experiences accelerated warming, permafrost has become vulnerable to widespread thaw. Simultaneously, wildfire activity across northern boreal forest and Arctic/subarctic tundra regions impacts permafrost stability through the combustion of insulating organic matter, vegetation, and post-fire changes in albedo. Efforts to synthesis the...
Authors
Anna Talucci, Michael M. Loranty, Jean E. Holloway, Brendan M. Rogers, Heather D. Alexander, Natalie Baillargeon, Jennifer L. Baltzer, Logan T. Berner, Amy Breen, Leya Brodt, Brian Buma, Jacqueline Dean, Clement J.F. Delcourt, Lucas R. Diaz, Catherine M. Dieleman, Thomas A. Douglas, Gerald Frost, Benjamin V. Gaglioti, Rebecca E. Hewitt, Teresa N. Hollingsworth, M. Torre Jorenson, Mark J. Lara, Rachel A. Loehman, Michelle C. Mack, Kristen L. Manies, Christina Minions, Susan M. Natali, Jonathan A. O’Donnell, David Olefeldt, Alison K. Paulson, Adrian V. Rocha, Lisa B. Saperstein, T.A. Shestakova, Seeta Sistla, Oleg Sizov, Andrey Soromotin, Merritt R. Turetksy, Sander Veraverbeke, Michelle A. Walvoord
Staying alive: Post-translocation apparent survival of fishes in headwater springs following drought Staying alive: Post-translocation apparent survival of fishes in headwater springs following drought
Objective Increasing fragmentation from constructed barriers, increased water use, and climate change limits the resiliency of stream fish metapopulations by reducing colonization. Management actions such as stocking or translocating fish may help contribute to the resilience of isolated habitats and increase redundancy of populations in intermittent stream networks. Our objective was to...
Authors
Sophia Marie Bonjour, Keith B. Gido, Peter J. Pfaff, Abigail Rick, Aiden Masek
High-throughput screening identifies bisphenol P as a potent cardiotoxin, inducing cardiotoxicity through apoptosis and NF-κB Pathway High-throughput screening identifies bisphenol P as a potent cardiotoxin, inducing cardiotoxicity through apoptosis and NF-κB Pathway
The increasing use of plastic additives, particularly bisphenols (BPs), has raised significant concerns about their potential risks to human health, especially during critical developmental stages. In this study, we developed a novel high-throughput toxicity screening platform using zebrafish (Danio rerio) to identify and prioritize chemicals with cardiotoxic potential, which is based on
Authors
Jiazhen Wang, Jason Tyler Magnuson, Yanqiu Feng, Wenjing Zhao, Chuanzi Gao, Chunmiao Zheng, Wenhui Qiu
Cascading land surface hazards as a nexus in the Earth system Cascading land surface hazards as a nexus in the Earth system
Earth’s surface is sculpted by numerous processes that move sediment, ranging from gradual and benign to abrupt and catastrophic. Although infrequent, high-magnitude sediment mobilization events can be hazardous to people and infrastructure, leaving topographic imprints on the landscape and remarkable narratives in the historical record. Hazardous events such as fires, storms, and...
Authors
Brian J. Yanites, Marin Clark, Joshua J. Roering, A. Joshua West, Dimitrios Zekkos, Jane W. Baldwin, Corina Cerovski-Darriau, Sean F. Gallen, Daniel E. Horton, Eric Kirby, Ben Leshchinksy, H. Benjamin Mason, Seulgi Moon, Katherine R. Barnhart, Adam M. Booth, Jonathan A. Czuba, Scott W. McCoy, Luke A. McGuire, Allison M. Pfeiffer, Jennifer L. Pierce
Simulated soundscapes and transfer learning boost the performance of acoustic classifiers under data scarcity Simulated soundscapes and transfer learning boost the performance of acoustic classifiers under data scarcity
1. The biodiversity crisis necessitates spatially extensive methods to monitor multiple taxonomic groups for evidence of change in response to evolving environmental conditions. Programs that combine passive acoustic monitoring and machine learning are increasingly used to meet this need. These methods require large, annotated datasets, which are time-consuming and expensive to produce...
Authors
Matthew J Weldy, Damon B. Lesmeister, Tom Denton, Adam Duarte, Ben J. Vernasco, Amandine Gasc, Jennifer Rowe, Michael J. Adams, Matthew G. Betts
Trait-based selection of seeds ingested and dispersed by North American waterfowl Trait-based selection of seeds ingested and dispersed by North American waterfowl
There are few studies on the extent to which waterfowl select plant food compared with what is available in wetland ecosystems. We used a new dataset on the presence of seeds in the alimentary canal or feces to identify flowering plant species whose seeds are ingested by North American ducks or geese. These data are a proxy for dispersal interactions because an important fraction of...
Authors
Bia A. Almeida, Mihai Costea, Giliandro G. Silva, Leonardo Maltchik, Susan E.W. De La Cruz, John Y. Takekawa, Andy J. Green
Metabarcoding analysis of arthropod pollinator diversity: A methodological comparison of eDNA derived from flowers and DNA derived from bulk samples of insects Metabarcoding analysis of arthropod pollinator diversity: A methodological comparison of eDNA derived from flowers and DNA derived from bulk samples of insects
Limitations of traditional insect sampling methods have motivated the development and optimisation of new non-lethal methods capable of quantifying diverse arthropod communities. Environmental DNA (eDNA) metabarcoding using arthropod-specific primers has recently been investigated as a novel way to characterise arthropod communities from the DNA they deposit on the surface of plants...
Authors
Kara Suzanne Jones, David S. Pilliod, Aaron W. Aunins