Publications
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.
Mission Area Publications
Mission Area Publications
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.
Filter Total Items: 174766
A hidden heelsplitter: Distribution of an undescribed endemic freshwater mussel in the Barrens Plateau A hidden heelsplitter: Distribution of an undescribed endemic freshwater mussel in the Barrens Plateau
Malacologists generally acknowledge that the Alasminota holstonia (Tennessee Heelsplitter) populations in the Caney Fork, Elk, and Duck river drainages in the Barrens Plateau region of middle Tennessee likely represent a closely related, but distinct, species, collectively referred to as Alasminota sp. (Barrens Heelsplitter). Recent surveys indicate that the species persists in at least...
Authors
Kristin I. Womble, Amanda E. Rosenberger, Andrew R. Henderson
Satellite tracking supports hypotheses of breeding allochrony and allopatry in the Endangered Pterodroma hasitata (Black-capped Petrel, Diablotin) Satellite tracking supports hypotheses of breeding allochrony and allopatry in the Endangered Pterodroma hasitata (Black-capped Petrel, Diablotin)
Pterodroma hasitata, the Black-capped Petrel (locally known as Diablotin), is the only extant Pterodroma petrel nesting in the Caribbean. The species is listed as globally Endangered by the IUCN and was recently listed as endangered under the U.S. Endangered Species Act. Pterodroma hasitata show a phenotypic gradient, ranging from a darker, smaller form to a paler, heavier form, that is...
Authors
Yvan G. Satgé, J. Brian Patteson, Bradford S. Keitt, Chris P. Gaskin, Patrick G.R. Jodice
Groundwater spatial variability within an atoll island: Assessing shallow aquifer heterogeneity with geophysical and physicochemical measurements Groundwater spatial variability within an atoll island: Assessing shallow aquifer heterogeneity with geophysical and physicochemical measurements
This study examines the spatial variability of shallow groundwater on Dhigelaabadhoo Island using electromagnetic induction surveys, groundwater monitoring, and sediment analyses. The research reveals how variations in island morphology—such as differences in elevation, reef flat width, and sediment composition—affect the spatial distribution of groundwater lenses and the overall aquifer...
Authors
Nidia Tobon-Velazquez, Gerd Masselink, T.J. O’Hare, Robert Bates, Ferdinand Oberle, Curt D. Storlazzi, D. C. Conley
Variation in soil organic carbon across a latitudinal chronosequence of mangrove poleward expansion Variation in soil organic carbon across a latitudinal chronosequence of mangrove poleward expansion
The critical carbon sink provided by coastal wetlands, known as blue carbon, can be affected by multiple aspects of climate change. One important example is warming-induced mangrove poleward expansion, which is shifting dominant plant cover across tropical–temperate transitional zones and altering ecosystem structure and function. We examined how mangrove expansion affects soil organic...
Authors
Yiyang Kang, Prakhin Assavapanuvat, Michael Osland, David A. Kaplan
Megafaunal community structure on ferromanganese and phosphorite hardgrounds in the Southern California Borderland Megafaunal community structure on ferromanganese and phosphorite hardgrounds in the Southern California Borderland
The Southern California Borderland (SCB) is a topographically complex region on the active continental margin that hosts varied hardground habitats, including ferromanganese (FeMn) crusts and phosphorites, marine minerals being considered for resource extraction. The SCB is influenced by seasonal upwelling and terrestrial inputs, and has a well-defined oxygen-minimum zone (OMZ). We...
Authors
Devin Vlach, Olivia S. Pereira, Francis Nguyen, Angelica Bradley, Kira Mizell, Lisa A. Levin
Fiber-optic sensing for earthquake hazards research, monitoring and early warning Fiber-optic sensing for earthquake hazards research, monitoring and early warning
The use of fiber‐optic sensing systems in seismology has exploded in the past decade. Despite an ever‐growing library of ground‐breaking studies, questions remain about the potential of fiber‐optic sensing technologies as tools for advancing if not revolutionizing earthquake‐hazards‐related research, monitoring, and early warning systems. A working group convened to explore these topics...
Authors
Jeffrey J. McGuire, Andrew J. Barbour, Zack J. Spica, Verónica Rodríguez Tribaldos, Zhongwen Zhan, Bradley P. Lipovsky, Robert J. Mellors, Ettore Biondi, Clara Yoon, Martin Karrenbach, Adam T. Ringler, James William Atterholt, Avinash Nayak, Theresa Marie Sawi, Loic Viens, Eileen R. Martin, Allen L. Husker, Paul Bodin, Morgan P. Moschetti, Qibin Shi, Nathaniel C. Miller, Prisha Puri
Lessons from 40 years of communicating volcanic risk during crises Lessons from 40 years of communicating volcanic risk during crises
Since the 1985 Nevado del Ruiz eruption that killed over 23,000 people in Armero, Colombia, risk communication has become central to volcanic crisis management. Despite the development of effective tools and programmes for volcanic risk communication, considerable challenges remain.
Authors
Lara Mani, Jenni Barclay, Carina Fearnley, Richard E.A. Robertson, Blaise Mafuko Nyandwi, Sara Barsotti, Amy Donovan, Wendy K. Stovall
Potential for continental scientific drilling to inform fault mechanics and earthquake science Potential for continental scientific drilling to inform fault mechanics and earthquake science
Our understanding of fault mechanics and earthquake processes remains limited, largely due to minimal direct observations near active faults at seismogenic depths. This lack of data restricts our ability to accurately assess and mitigate both natural and human-induced seismic hazards. However, recent advancements in drilling capabilities and downhole sensing technologies offer an...
Authors
Elizabeth S. Cochran, Natalia Zakharova, Brett Carpenter, Folarin Kolawole, Nicholas W. Hayman, Hiroki Sone, Douglas R. Schmitt, Peter Eichhubl, William Ellsworth, Yves Guglielmi, Stephen H. Hickman, Harold J. Tobin
Cosmic dust reveals dynamic shifts in central Arctic sea-ice coverage over the past 30,000 years Cosmic dust reveals dynamic shifts in central Arctic sea-ice coverage over the past 30,000 years
Arctic sea-ice loss affects biological productivity, sustenance in coastal communities, and geopolitics. Forecasting these impacts requires mechanistic understanding of how Arctic sea ice responds to climate change, but this is limited by scarce long-term records. We present continuous 30,000-year reconstructions of sea-ice coverage from the Arctic Ocean based on measurements of two...
Authors
Frank J. Pavia, Jesse Farmer, Laura Gemery, Thomas M. Cronin, Jonathan Treffkorn, Kenneth A. Farley
Occurrence and surface availability of Siskiyou Mountains Salamanders (Plethodon stormi) and Scott Bar Salamanders (P. asupak) in northern California Occurrence and surface availability of Siskiyou Mountains Salamanders (Plethodon stormi) and Scott Bar Salamanders (P. asupak) in northern California
Estimating the distributions of cryptic species is essential for conservation, yet our understanding is hampered by animal behavior and imperfect detection. We developed and implemented a multiscale occupancy survey protocol to estimate the probability of occurrence, probability of being active on the surface, and detection probability of two range-restricted terrestrial salamanders...
Authors
Brian Halstead, Daniel Antonio Macias, Casey D. Moss, Patrick M. Kleeman, Jonathan P. Rose
Spatial distribution and relative biomass of bigheaded carps in Lake Balaton, Hungary estimated from an environmental DNA survey Spatial distribution and relative biomass of bigheaded carps in Lake Balaton, Hungary estimated from an environmental DNA survey
Silver carp (Hypophthalmichthys nobilis), bighead carp (H. molitrix) and their hybrids, collectively known as bigheaded carps, have been introduced to Lake Balaton, Hungary. The current stock sizes are difficult to assess. We investigated environmental DNA (eDNA) techniques targeted for bigheaded carps, assessed the spatial distribution of eDNA in Lake Balaton, compared eDNA...
Authors
Nora Boross, Ardo Laszlo, Duane C. Chapman, Gergely Boros, Zoltán Vitál, Viktor Tóth, Nathan Thompson, Katy E. Klymus, Catherine A. Richter
Development of genomic markers for monitoring and research on plethodontid salamanders Development of genomic markers for monitoring and research on plethodontid salamanders
Despite the importance of plethodontid salamanders and their vulnerability to ongoing environmental change, they are inherently difficult to monitor due to their cryptic nature. Recent advances in genomics have created new opportunities for monitoring of populations and their responses to environmental perturbations. In this study, we developed a new target capture-based genomic panel...
Authors
Benjamin M. Fitzpatrick, Kara Suzanne Jones, Aaron W. Aunins, Michael S. Eackles, David C. Kazyak