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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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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
Karhunen–Loève deep learning method for surrogate modeling and approximate Bayesian parameter estimation Karhunen–Loève deep learning method for surrogate modeling and approximate Bayesian parameter estimation
We evaluate the performance of the Karhunen–Loève Deep Neural Network (KL-DNN) framework for surrogate modeling and approximate Bayesian parameter estimation in partial differential equation models. In the surrogate model, the Karhunen–Loève (KL) expansions are used for the dimensionality reduction of the number of unknown parameters and variables, and a deep neural network is employed...
Authors
Yuanzhe Wang, Yifei Zong, James Lucian McCreight, Joseph D. Hughes, Michael N. Fienen, Alexandre Tartakovsky
Anthropogenic activities have greatly altered mangroves over the last hundred years Anthropogenic activities have greatly altered mangroves over the last hundred years
Mangroves not only provide ecosystem and cultural services but also contribute to the mitigation of global warming. Mangrove dynamics and their environmental responses as re-constructed from the past can inform current mangrove conservation and restoration. However, our understanding of mangrove dynamics over the past century and the impact of human activities on these ecosystems remains...
Authors
Yao Zhang, Guangming Zhao, Ken Krauss, Lianghao Pan, Yuanqin Xu, Xianwei Meng
Glaciers in Western Canada-conterminous US and Switzerland experience unprecedented mass loss over the last four years (2021–2024) Glaciers in Western Canada-conterminous US and Switzerland experience unprecedented mass loss over the last four years (2021–2024)
Over the period 2021–2024, glaciers in Western Canada and the conterminous US (WCAN-US), and Switzerland respectively lost mass at rates of 22.2 ± 9.0 and 1.5 ± 0.3 Gt yr−1 representing a twofold increase in mass loss compared to the period 2010–2020. Since 2020, total ice volume was depleted by 12% (WCAN-US) and 13% (Switzerland). Meteorological conditions that favored high rates of...
Authors
Brian Menounos, Matthias Huss, Shawn Marshall, Mark Ednie, Caitlyn Florentine, Lea Hartl
Parasite‐mediated competition limits dominant cervid competitor Parasite‐mediated competition limits dominant cervid competitor
Species interactions structure ecological communities through direct and indirect pathways with ecosystem-wide implications. Despite mounting interest in the importance of indirect interactions, empirical evidence remains limited. Here, we demonstrate the critical role of parasite-mediated competition in driving community outcomes in a multi-species system of conservation and management...
Authors
Jennifer A. Grauer, Joshua P. Twining, Manigandan Lejeune, Jacqueline L. Frair, Krysten L. Schuler, David W. Kramer, Angela K. Fuller