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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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Carbon sequestration along a gradient of tidal marsh degradation in response to sea level rise Carbon sequestration along a gradient of tidal marsh degradation in response to sea level rise
Tidal marshes are considered one of the world's most efficient ecosystems for belowground organic carbon sequestration and hence climate mitigation. Marsh systems are however also vulnerable to degradation due to climate-induced sea level rise, whereby marsh vegetation conversion to open water often follows distinct spatial patterns: levees (i.e. marsh zones 30 m from creeks). Here, we...
Authors
Mona Huyzentruyt, Maarten Wens, Gregory S. Fivash, David Walters, Steven Bouillon, Joel Carr, Glenn Guntenspergen, Matt L. Kirwan, Stijn Temmerman
Restoration based on cost-benefit optimization: A grasslands pilot study Restoration based on cost-benefit optimization: A grasslands pilot study
Ecological restoration is essential to meeting global biodiversity conservation goals. Given limited conservation budgets, deciding where to restore habitat is a key challenge for the coming decade. We developed a spatially explicit framework to optimize ecological restoration site selection by integrating land use history, species distributions, and economic costs. The framework...
Authors
Sarah R. Weiskopf, Toni Lyn Morelli, Tina G. Mozelewski, Alexey N. Shiklomanov, Susannah B. Lerman
Effects of carbamazepine to visual function in early life stage fish Effects of carbamazepine to visual function in early life stage fish
The frequent detection of pharmaceuticals and personal care products (PPCPs) in the environment raises concern for aquatic systems. Carbamazepine (CBZ), an antiepileptic drug, is among the most detected PPCP globally, with concentrations in surface water exceeding those that induce toxicity to aquatic organisms. Non-targeted transcriptomic profiling was conducted in zebrafish (Danio...
Authors
Jason Tyler Magnuson, Holly J. Puglis, Jessica K. Leet, Adam H. Moody, Célio Freire Mariz, Thea M. Edwards, Daniela M. Pampanin
Magmatic source of the opening phase of Kīlauea’s 2018 Lower East Rift Zone eruption Magmatic source of the opening phase of Kīlauea’s 2018 Lower East Rift Zone eruption
The 2018 eruption of Kīlauea volcano in its Lower East Rift Zone began with the discharge of evolved high-Ti basalt as weak lava fountains and short, slow-moving lava flows. The lavas were quickly geochemically recognized as being derived from magmas stored within the rift zone and remobilized by a new intrusion, a sequence that is common at Kīlauea. This initial phase of the 2018...
Authors
Rose Gallo, Laurine Barreau, Tom Shea, Nicolas Cluzel, Chris Russo, Aaron J. Pietruszka, William Nelson, Allan Lerner, Paul J. Wallace, Cheryl Gansecki
Harvest of long-tailed ducks from an important hunting location on Lake Michigan Harvest of long-tailed ducks from an important hunting location on Lake Michigan
Annual waterfowl harvest in North America is estimated through a collaborative and strategic process, with federal harvest surveys the primary method of estimation. Sea duck hunters participating in federal harvest surveys represent a small proportion of the overall waterfowl hunting population, limiting the utility of harvest estimates for sea ducks. The long-tailed duck (Clangula...
Authors
Luke J. Fara, William S. Beatty, Brian R. Gray, Kevin P. Kenow, Michael W. Eichholz
Seasonal and decadal changes in winter body condition of four sympatric diving ducks Seasonal and decadal changes in winter body condition of four sympatric diving ducks
Winter body condition is an important driver of survival, reproductive output, and overall population health in waterfowl. Diving duck species use distinct habitats, exploit unique resources, and can collectively provide an integrated index of winter habitat quality. The San Francisco Bay (SFB) is the largest estuary on the west coast of North America, serving as critical wintering...
Authors
Mason A. Hill, Susan E.W. De La Cruz, Laurie Anne Hall, Stacy M. Moskal, John Y. Takekawa, John M. Eadie
Decadal trends and occurrence of geogenic constituents and mixtures in groundwater across the continental United States Decadal trends and occurrence of geogenic constituents and mixtures in groundwater across the continental United States
Worldwide, about 50% of the population is served by groundwater-sourced drinking water. Numerous groundwater quality assessments have found that geogenic constituents are among the most common contaminants in drinking-water aquifers. Documenting changing groundwater quality is a crucial aspect of water availability assessments. We assess trends and occurrence of geogenic constituent...
Authors
Melinda L. Erickson, Sarah M. Elliott, MaryLynn Musgrove, Elise Danica Hinman, Margaux Jeanne Sleckman, Sarah M. Stackpoole, Bruce D. Lindsey
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