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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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Latest Pleistocene to 19th-century earthquakes on bending-moment reverse faults of the Seattle fault zone, Washington Latest Pleistocene to 19th-century earthquakes on bending-moment reverse faults of the Seattle fault zone, Washington

Fault-related folds and their associated secondary faults play a critical yet often underrecognized role in accommodating strain and generating earthquakes in active fold-and-thrust belts. In the Seattle fault zone (SFZ), Washington, USA, we present new paleoseismic, geomorphic, and geophysical evidence for late Pleistocene and Holocene earthquakes on shallow, south-dipping secondary...
Authors
Stephen J. Angster, Brian L. Sherrod, Jessie K. Pearl, Lydia M. Staisch, Wes Johns, Richard J. Blakely

A matter of timing: Sagebrush steppe restoration seeding outcomes altered by species responses to warmer spring temperatures and interannual weather variation A matter of timing: Sagebrush steppe restoration seeding outcomes altered by species responses to warmer spring temperatures and interannual weather variation

Introduction Restoration outcomes in cold desert ecosystems like sagebrush steppe are affected by weather variability, particularly during the spring, a critical time period for seedling establishment. Seedling emergence phenology is also highly variable among species in these ecosystems. Seed-based restoration outcomes are likely affected by the emergence timing of species in seed mixes...
Authors
Stella M Copeland, Jonathan D Bates, Kirk W Davies, Matthew Germino

Single receiver target localization in mobile marine acoustic telemetry Single receiver target localization in mobile marine acoustic telemetry

Many marine ecological studies track animal movement and migration using acoustic telemetry, in which animals are implanted with acoustic transmitters broadcasting a unique ID code. Receivers detect and decode these transmissions and provide an estimate of the animal’s location. As transmissions can be detected at distances of hundreds of meters to even several kilometers, localization...
Authors
Eric M. Gaskell, Tyler Reid Funnell, Christopher M. Holbrook, Darryl W. Hondorp, Xiaobo Tan

Sea-level rise in a coastal marsh: Linking increasing tidal inundation, decreasing soil strength and increasing pond expansion Sea-level rise in a coastal marsh: Linking increasing tidal inundation, decreasing soil strength and increasing pond expansion

Coastal marsh conversion into ponds, which may be triggered by sea-level rise, is considered an important driver of marsh loss and their valuable ecosystem services. Previous studies have focused on the role of wind waves in driving the expansion of interior marsh ponds, through lateral erosion of marsh edges surrounding the ponds. Here, we propose another mechanism between sea-level...
Authors
Mona Huyzentruyt, Lennert Schepers, Matt L. Kirwan, Glenn Guntenspergen, Stijn Temmerman

Global framework for communication of biological invasion risks Global framework for communication of biological invasion risks

Biological invasions, driven by the spread of non-native species, have become a critical global issue because of their far-reaching ecological and socioeconomic impacts. Effective communication of the risks of biological invasions is essential for implementing robust policy and legislation and gaining public support for conservation efforts. However, current policies often suffer from
Authors
Lorenzo Vilizzi, Vettath R. Suresh, Daniela Giannetto, Jeffrey E. Hill, Wesley M. Daniel, João G. Monteiro, Lennart Edsman, Hassan Sh Elmi, Ahmed Ibrahim Awale, Elnaz Najafi-Majd, Ramazan Mammadov, Sapto Andriyono, Djumanto, Mohammad Noor Azmai, Abdulwakil Saba, Belma K. Stroil, Avdul Adrović, Anna Vila-Gispert, Dani Boix, Oldřich Kopecký, Vilém Pavlu, Dragana Milošević, Danka Caković, Henrik Holbech, Kim Lundgreen, Juliane Lukas, Harald Ahnelt, Merike Linnamägi, Mehis Rohtla, David Almeida, Roberto Mendoza, Allan S. Gilles, Richard Thomas D. Pavia, Elisabeth Knudsen, Leivur J. Hansen, Philippe Goulletquer, Amelia Curd, Ivan Špelić, Jón E. Jónsson, Höskuldur Thráinsson, Angela Boggero, Mihails Pupins, Artūrs Škute, Lukas Petrulaitis, Ilona Jukonienė, Gábor Herczeg, Árpád Ferincz, Hugo Verreycken, Rob S.E.W. Leuven, Martin Malmstrøm, Gaute Velle, Trobjon Makhkamov, Akramjon Yuldashev, Dariusz Pietraszewski, Lidia Marszał, João Canning-Clode, Mariele Pasuch de Camargo, Cristina Preda, Daniyar Memedemin, Rigers Bakiu, Silvia Bakiu, Kristína S. Švolíková, Barbora Števove, Luka Duniš, Petra Kristan, Predrag Simonović, Radoslav Dekić, Riikka Puntila-Dodd, Miia Jauni, Karin H. Olsson, Kieu Anh Ta, Thuyet D. Bui, Baran Yoğurtçuoğlu, Sevan Ağdamar, Bahadir Yuldashov, Peyzulla Khydyrov, Leonidas Vardakas, Nicholas Koutsikos, Costas Perdikaris, Dzmitry Lukashanets, Oleg Borodin, Eliza Uzunova, Dimitriy Dashinov, Georgii Lazkov, Myskalai Ganybaeva, Daniya Ualiyeva, Raushan Zharmukhametova, Milica Ristovska, Aleksandra Cvetkovska Gjorgjievska, Burenbaatar Ganbaatar, Solongo Khadbaatar, Vadim E. Panov, Oleh Marenkov, Nurali Saidov, Mekhrovar Okhonniyozov, Yuriy Kvach, Volodymyr Yuryshynets, Marine Arakelyan, Hasmik Khachatryan, Levan Mumladze, Bella Japoshvili, Renanel Pickholtz, Tal Gavriel, Usman Atique, Muhammad Altaf, Sonia Iqbal, Zainab Al-Wazzan, Sahar Chebaane, Mohammad Hamid Hamdard, Abdul Rahman Osmani, Seyed Daryoush Moghaddas, Jamileh Javidpour, Mariyam Nashath, Faruhana Abdullah, Hari Prasad Sharma, Bharat Babu Shrestha, Vandana Vibhakaran, Shams M. Galib, Md. Abdul Gofur Khan, Udaya Priyantha Epa, Nadiya Cassim, Mahanama De Zoysa, Ratcha Chaichana, Kamalaporn Kanongdate, Nyein Chan, La Minn Ko Ko, Jigdrel Dorji, Chhimi Dorji, Khaml Inkhavilay, Chanhvilay Somvongsa, Kim Soben, Yutha Nida, Yohannes B. Tesfay, Bikila W. Dullo, Chulhong Oh, Youngjun Park, Shan Li, Hui Wei, Akihiko Koyama, Atsuhiko Isobe, Marina Piria

Multi-year cut-to-drown management limits Phragmites australis growth, belowground resources, and rhizome viability in Great Lakes wetlands Multi-year cut-to-drown management limits Phragmites australis growth, belowground resources, and rhizome viability in Great Lakes wetlands

The distribution and abundance of Phragmites in the Great Lakes coastal zone has expanded in part due to its unique ventilation physiology and its ability to take advantage of changes in lake levels over the past several decades. During an extended period of low lake levels in the early 2000s, Phragmites expanded into vast shallow water areas as lake bottoms were exposed. Many of those...
Authors
Wesley A. Bickford, Kaira A. Schaefer, Spenser L. Widin, Kurt P. Kowalski

Teach me how to pycap: A high-capacity well decision support tool using analytical solutions in Python Teach me how to pycap: A high-capacity well decision support tool using analytical solutions in Python

Regulatory agencies in humid temperate environments rely on timely evaluations of streamflow depletion and drawdown to protect aquatic ecosystems and existing water users. Numerical models offer detailed insights, but their complexity and time demands often preclude their practical use in rapid decision-making. We present pycap-dss, an open-source Python package that implements a suite...
Authors
Michael N. Fienen, Aaron Pruitt, Howard W. Reeves

Experimental lure design reveals the best attractants for increasing detection of multiple mesocarnivores Experimental lure design reveals the best attractants for increasing detection of multiple mesocarnivores

Many mesocarnivores have low detection rates that hinder practitioners' abilities to implement effective monitoring strategies. Using olfactory attractants (i.e. lures) may increase detection rates, but variation in effects among species is not well understood. Thus, investigating factors influencing detection of mesocarnivores, can inform and improve monitoring efforts. We evaluated the...
Authors
Danielle N. Brosend, Anna K. Moeller, Robert Charles Lonsinger

Modeling carbon fluxes in tidal forested wetlands in the Mississippi river deltaic plain under various hydrologic conditions: Implications for river diversions Modeling carbon fluxes in tidal forested wetlands in the Mississippi river deltaic plain under various hydrologic conditions: Implications for river diversions

Our understanding of the impacts of climate change, sea-level rise (SLR), and freshwater management on the magnitude and variability of carbon fluxes in tidal forested wetlands remains limited. In this study, we applied a process-driven wetland biogeochemistry model, Wetland Carbon Assessment Tool—DeNitrification-DeComposition (WCAT-DNDC) model to explore responses of carbon fluxes in...
Authors
Hongqing Wang, Ken W. Krauss, Gary P. Shaffer, Brett Patton, Daniel Kroes, Gregory E. Noe, Zhaohua Dai, Lindsey Dettwiller, Carl C. Trettin

Prioritizing resource protection and understanding potential susceptibility of springs to surficial changes in a low-temperature geothermal system Prioritizing resource protection and understanding potential susceptibility of springs to surficial changes in a low-temperature geothermal system

Geothermal systems are vulnerable to changes in water budget and composition, requiring science-based management. This study uses a dataset of spring water temperatures, time series of groundwater residence time tracers (tritium and carbon-14), and stable isotopes of water to understand geothermal flow in a low-temperature geothermal system in north west Colorado, United States...
Authors
Connor P. Newman, Jeff D. Pepin

A catalogue of Do's and Don'ts in the modeling of environmental systems A catalogue of Do's and Don'ts in the modeling of environmental systems

Modeling plays a vital role in understanding and managing complex environmental systems, but its credibility and quality depend heavily on a comprehensive set of defensible model activities and practices, especially when the system of interest is plagued with uncertainties and conflicting stakeholder perspectives. This paper proposes a catalogue of Do's and Don'ts to guide modelers in...
Authors
Xifu Sun, Anthony J. Jakeman, Serena H Hamilton, Volker Grimm, Randall J. Hunt, Sondoss El Sawah, Hsiao-Hsuan Wang, Barry Croke, Min Chen

Earthquake-hazard exposure of residents with potential access and functional needs in the United States Earthquake-hazard exposure of residents with potential access and functional needs in the United States

Earthquake response plans and earthquake early warning (EEW) systems designed for general populations may not consider potential access and functional needs (AFN) of individuals with physical, sensory, cognitive, or social limitations. Previous efforts to map the distribution of these populations have focused on social-vulnerability indices that ignore or oversimply these limitations...
Authors
Nathan J. Wood, Alice Pennaz, Jeanne M. Jones
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