Evaluation of data collected by Guam Division of Aquatic and Wildlife Resources during population establishment and monitoring of ko'ko' (Hypotaenidia owstoni) on Rota, Commonwealth of the Northern Mariana Islands, and wildlife monitoring datasets on Cocos Island and Guam
Richard J. Camp, Sarah A B Nash, Kristina L. Paxton
2024, Report
Efforts to recover the critically endangered ko’ko’ (Guam rail, Hypotaenidia owstoni) through establishing an experimental population on the island of Rota in the Commonwealth of the Northern Mariana Islands have been ongoing for three decades. The U.S. Geological Survey collaborated with the Guam Division of...
A new database of giant impacts over a wide range of masses and with material strength: A first analysis of outcomes
Alexandre Emsenhuber, Erik Asphaug, Saverio Cambioni, Travis S. J. Gabriel, Stephen R. Schwartz, Robert E. Melikyan, C. Adeene Denton
2024, The Planetary Science Journal (5)
In the late stage of terrestrial planet formation, planets are predicted to undergo pairwise collisions known as giant impacts. Here, we present a high-resolution database of giant impacts for differentiated colliding bodies of iron–silicate composition, with target masses ranging from 1 × 10−4M⊕ up to super-Earths (5 M⊕). We vary the...
Numerical modeling of debris flows: A conceptual assessment
Richard M. Iverson, David L. George
2024, Book chapter, Advances in Debris-flow Science and Practice
Real-world hazard evaluation poses many challenges for the development and application of numerical models of debris flows. In this chapter we provide a conceptual overview of physically based, depth-averaged models designed to simulate debris-flow motion across three-dimensional terrain. When judiciously formulated and applied, these models can...
A comparison of contemporary and historical hydrology and water quality in the foothills and coastal plain of the Arctic National Wildlife Refuge, Arctic Slope, northern Alaska
Joshua C. Koch, Heather Best, Carson Baughman, Charles Couvillion, Michael P. Carey, Jeff Conaway
2024, Scientific Investigations Report 2024-5008
The Arctic National Wildlife Refuge is a unique landscape in northern Alaska with limited water resources, substantial biodiversity of rare and threatened species, as well as oil and gas resources. The region has unique hydrology related to perennial springs, and the formation of large aufeis fields—sheets of ice that grow...
Evaluation of an impulse-response emulator for groundwater contaminant transport modeling
Brent Porter Heerspink, Michael N. Fienen, Howard W. Reeves
2024, Groundwater
There is a significant need to develop decision support tools capable of delivering accurate representations of environmental conditions, such as ground and surface water solute concentrations, in a timely and computationally efficient manner. Such tools can be leveraged to assess a large number of potential management strategies for mitigating non-point...
Performance-based earthquake early warning for tall buildings
S. Farid Ghahari, Khachik Sargsyan, Grace Alexandra Parker, Dan Swensen, Mehmet Çelebi, Hamid Haddadi, Ertugrul Taciroglu
2024, Earthquake Spectra (40) 1425-1451
The ShakeAlert Earthquake Early Warning (EEW) system aims to issue an advance warning to residents on the West Coast of the United States seconds before the ground shaking arrives, if the expected ground shaking exceeds a certain threshold. However, residents in tall buildings may experience much greater...
New uses for ancient middens: Bridging ecological and evolutionary perspectives
Katie M. Becklin, Julio L. Betancourt, Joseph Braasch, Olivier Dézerald, Francisca Díaz, Angélica L. González, Robert Harbert, Camille A. Holmgren, Angela D. Hornsby, Claudio L. Latorre, Marjorie D. Matocq, Felisa A. Smith
2024, Trends in Ecology and Evolution (39) 479-493
Rodent middens provide a fine-scale spatiotemporal record of plant and animal communities over the late Quaternary. In the Americas, middens have offered insight into biotic responses to past environmental changes and historical factors influencing the distribution and diversity of species. However, few studies have used middens to investigate...
Evaluation of in vitro treatments against the causative agent of Diadema antillarum scuticociliatosis (DaSc)
James S. Evans, Julie Jenice Voelschow, Isabella T. Ritchie, Mya Breitbart, Ian Hewson, Christina A. Kellogg
2024, Diseases of Aquatic Organisms (157) 107-112
ABSTRACT: In the 1980s, a mass die-off of the long-spined sea urchin Diadema antillarum occurred on Florida and Caribbean coral reefs. D. antillarum populations largely did not recover, and in 2022, remaining populations experienced another mass mortality event. A ciliate most similar to Philaster apodigitiformis was identified as the causative agent of the 2022 event,...
Assessing influence from wastewater treatment facilities on Glorieta Creek and the Pecos River within Pecos National Historical Park, New Mexico, February–October 2022
K. Wilkins, K.R. Beisner, R.E. Travis
2024, Open-File Report 2024-1014
The Pecos National Historical Park protects 2.9 miles of the Pecos River and part of Glorieta Creek within the park boundaries. Updated water-quality data can assist resource managers in determining if effluent from two nearby wastewater treatment plants (WWTPs) is affecting the quality of the water in the Pecos River...
Preface to focus section on new frontiers and advances in global seismology
Robert E. Anthony, Nicolas Leroy, Robert Mellors, Adam T. Ringler, Joachim Saul, Martin Vallée, David C. Wilson
2024, Seismological Research Letters (95) 1473-1477
Over the last century, many of the fundamental advances in our understanding of the solid Earth have been underpinned by seismic observations recorded on long‐running networks of globally distributed seismic instruments (e.g., Agnew et al., 1976; Romanowicz et al., 1984; Hanka and Kind, 1994; Peterson and Hutt,...
Seabirds and humpback whales give early warning to marine heatwaves
Lauren Bien, Rob Suryan, Mayumi L. Arimitsu, John Moran
2024, Open Access Government
Between 2014 and 2016, an extreme marine heatwave struck the North Pacific Ocean, affecting nearshore and pelagic (offshore, open ocean) ecosystems from southern California to Alaska. This unprecedented event, characterized by unusually warm ocean temperatures over a large area, was the longest-duration marine heatwave recorded to date. The Gulf of...
Where is the water? Desert [poster]
Simona Love, Sophie Hill, Gregory Carling, Josh Lemonte, Benjamin Abbott, Raymond Lee, Rachel Wood, Elizabeth Bailey, Hayley Corson-Dosch, Cee Nell, Ryan Nixon
2024, General Information Product 238
DescriptionWater is an integral part of how we interact with the environment and live our everyday lives. This educational poster illustrates where water is in a desert environment, how it moves, and different ways water is used both naturally and through human interaction. This poster is intended for eighth-grade audiences...
Where is the water? Suburban [poster]
Manon Hale, Anna Wright, Sophie Hill, Benjamin Abbott, Raymond Lee, Rachel Wood, Elizabeth Bailey, Ryan Nixon, Rebecca Hale, Hayley Corson-Dosch, Cee Nell, Keely Song
2024, General Information Product 236
DescriptionWater is an integral part of how we interact with the environment and live our everyday lives. This educational poster illustrates where water is in the suburbs, how it moves, and different ways water is used both naturally and through human interaction. This poster is intended for eighth-grade audiences and...
Where is the water? Agriculture [poster]
Simona Love, Sophie Hill, Bryan Hopkins, Benjamin Abbott, Raymond Lee, Rachel Wood, Elizabeth Bailey, Hayley Corson-Dosch, Cee Nell, Ryan Nixon
2024, General Information Product 234
DescriptionWater is an integral part of how we interact with the environment and live our everyday lives. This educational poster illustrates agricultural water use, how water moves, and different ways that water is used both naturally and through human interaction. This poster is intended for eighth-grade audiences and younger....
Where is the water? Urban [poster]
Simona Love, Sophie Hill, Bryan Hopkins, Benjamin Abbott, Raymond Lee, Rachel Wood, Elizabeth Bailey, Ryan Nixon, Hayley Corson-Dosch, Cee Nell, Rebecca Hale
2024, General Information Product 233
DescriptionWater is an integral part of how we interact with the environment and live our everyday lives. This educational poster illustrates where water is in urban environments, how it moves, and different ways water is used both naturally and through human interaction. This poster is intended for eighth-grade audiences and...
Where is the water? Forest [poster]
Simona Love, Sophie Hill, Gregory Carling, Benjamin Abbott, Raymond Lee, Rachel Wood, Elizabeth Bailey, Hayley Corson-Dosch, Cee Nell, Ryan Nixon
2024, General Information Product 237
DescriptionWater is an integral part of how we interact with the environment and live our everyday lives. This educational poster illustrates where water is in forests, how it moves, and different ways water is used both naturally and through human interaction. This poster is intended for eighth-grade audiences and younger....
Where is the water? Coast [poster]
Simona Love, Sophie Hill, Richard Gill, Benjamin Abbott, Raymond Lee, Rachel Wood, Elizabeth Bailey, Hayley Corson-Dosch, Cee Nell, Ryan Nixon
2024, General Information Product 232
DescriptionWater is an integral part of how we interact with the environment and live our everyday lives. This educational poster illustrates where water is on the coast, how water moves, and different ways that water is used both naturally and through human interaction. This poster is intended for eighth-grade audiences...
Water cycle processes [poster]
Eliza Anderson, Sophie Hill, Ryan Nixon, Benjamin Abbott, Raymond Lee, Rachel Wood, Gregory Carling, Bryan Hopkins, Hayley Corson-Dosch, Cee Nell, Elizabeth Bailey
2024, General Information Product 235
DescriptionThe water cycle describes how water moves from Earth’s surface into the atmosphere, then back to the surface again or to below Earth’s surface. This educational poster depicts five key water-cycle processes that transport or transform water between states: evaporation, transpiration, condensation, precipitation, and infiltration. It illustrates examples of natural...
Spatial distribution of API gravity and gas/oil ratios for petroleum accumulations in Upper Cretaceous strata of the San Miguel, Olmos, and Escondido Formations of the south Texas Maverick Basin—Implications for petroleum migration and charge history
Colin A. Doolan, William H. Craddock, Marc L. Buursink, Javin J. Hatcherian, Steven M. Cahan
2024, Scientific Investigations Report 2023-5124
The Maverick Basin of south Texas is currently undergoing active exploration and production of gas and oil from tight sandstone reservoirs. The most productive tight sandstones in the basin are in the Upper Cretaceous San Miguel, Olmos, and Escondido Formations. These units are second only to the Eagle Ford Shale...
Evaluation of sensors for continuous monitoring of harmful algal blooms in the Finger Lakes region, New York, 2019 and 2020
Brett D. Johnston, Kaitlyn M. Finkelstein, Sabina R. Gifford, Michael D. Stouder, Elizabeth A. Nystrom, Philip Savoy, Joshua J. Rosen, Matthew B. Jennings
2024, Scientific Investigations Report 2024-5010
In response to the increasing frequency of cyanobacterial harmful algal blooms (CyanoHABs) in the Finger Lakes region of New York State, a pilot study by the U.S. Geological Survey, in collaboration with the New York State Department of Environmental Conservation, was conducted to enhance CyanoHAB monitoring and understanding. High-frequency sensors...
The Metzger marsh restoration: A vegetation-centric look after 27 years
Douglas A. Wilcox, Kurt P. Kowalski, Alexandra (Sasha) A Bozimowski
2024, Journal of Great Lakes Research (50)
We investigated wetland vegetation before, during, and after dike construction at the Metzger Marsh project in western Lake Erie, which was designed to restore a 300-ha wetland that had been degraded following the loss of a protective barrier beach. A dike was constructed in 1995 to replace the function of...
Pre-existing ground cracks as lava flow pathways at Kīlauea in 2014
T. Orr, Edward W. Llewellin, Kyle R. Anderson, Matthew R. Patrick
2024, Bulletin of Volcanology (86)
In 2014, the Pāhoa lava flow at Kīlauea, on the Island of Hawaiʻi (USA), entered a string of pre-existing meter-width ground cracks in the volcano’s East Rift Zone. The ground cracks transported lava below the surface in a direction discordant to the slope of the landscape....
Controls on in-stream nitrogen loss in western Lake Erie tributaries
Rebecca Kreiling, Lynn A. Bartsch, Patrik Mathis Perner, Kenna Jean Breckner, Tanja N. Williamson, James M. Hood, Nathan F. Manning, Laura T. Johnson
2024, Journal of Great Lakes Research (50)
Management efforts to reduce cyanobacterial harmful algal blooms (cHABs) in the Great Lakes have focused on decreasing tributary inputs of phosphorus (P). Recent research has indicated that reduction of both P and nitrogen (N) can lessen cHABs severity. Microbially mediated N cycling in streambed sediment may reduce N riverine loads,...
Relation between the relative abundance and collapse of Aphanizomenon flos-aquae and microbial antagonism in Upper Klamath Lake, Oregon
Jennifer C. Underwood, Natalie Celeste Hall, Adam Mumford, Ronald W. Harvey, Paul Anthony Bliznik, Kaitlyn Michelle Jeanis
2024, FEMS Microbiology Ecology (100)
Aphanizomenon flos-aquae (AFA) is the dominant filamentous cyanobacterium that develops into blooms in Upper Klamath Lake, Oregon each year. During AFA bloom and collapse, ecosystem conditions for endangered Lost River and shortnose suckers deteriorate, thus motivating the need to identify processes that limit AFA abundance and decline. Here we investigate...
Establishment of terrestrial mammals on former reservoir beds following large dam removal on the Elwha River, Washington, USA
Rebecca McCaffery, Sara Cendejas-Zarelli, Katy R Goodwin, Patricia J. Happe, Kurt Jenkins, Kimberly A. Sager-Fradkin
2024, Frontiers in Ecology and Evolution (12)
Terrestrial wildlife species are important yet often overlooked taxa in the recovery of ecosystems following dam removal. Their presence can shape ecosystem recovery, signal restoration of ecosystem function, and influence food web dynamics and nutrient transfer. We used camera traps to examine seasonal use of two former reservoir beds...
