Functional gene composition and metabolic potential of deep-sea coral-associated microbial communities
Zoe A. Pratte, Frank J. Stewart, Christina A. Kellogg
2023, Coral Reefs (42) 1011-1023
Over the past decade, an abundance of 16S rRNA gene surveys have provided microbiologists with data regarding the prokaryotes present in a coral-associated microbial community. Functional gene studies that provide information regarding what those microbes might do are fewer, particularly for non-tropical corals. Using the GeoChip...
The blue carbon reservoirs from Maine to Long Island, NY
Philip D. Colarusso, Zamir Libohova, Emily Shumchenia, Meagan J. Eagle, Megan Christian, Robert Vincent, Beverly Johnson
2023, Report
In response to the New England Governor and Eastern Canadian Premier 2017 Climate Change Action Plan recommendation to “manage blue carbon resources to preserve and enhance their existing carbon reservoirs,” the U.S. Environmental Protection Agency (EPA) convened a New England Blue Carbon Inventory Workgroup, comprised of a variety of federal,...
Fuel treatments in shrublands experiencing pinyon and juniper expansion result in trade-offs between desired vegetation and increased fire behavior
Claire L. Williams, Lisa M. Ellsworth, Eva Strand, Matt C. Reeves, Scott E. Shaff, Karen Short, Jeanne C. Chambers, Beth Newingham, Claire Tortorelli
2023, Fire Ecology (19)
BackgroundNative pinyon (Pinus spp.) and juniper (Juniperus spp.) trees are expanding into shrubland communities across the Western United States. These trees often outcompete with native sagebrush (Artemisia spp.) associated species, resulting in increased canopy fuels and reduced surface fuels. Woodland expansion often results in longer fire return intervals with potential for...
A spatially explicit modeling framework to guide management of subsidized avian predator densities
Shawn T. O’Neil, Peter S. Coates, Sarah C. Webster, Brianne E. Brussee, Seth J. Dettenmaier, John C. Tull, Pat J. Jackson, Michael L. Casazza, Shawn P. Espinosa
2023, Ecosphere (14)
Anthropogenic resource subsidization across western ecosystems has contributed to widespread increases in generalist avian predators, including common ravens (Corvus corax; hereafter, raven). Ravens are adept nest predators and can negatively impact species of conservation concern. Predation effects from ravens are especially concerning for greater...
Spatial and temporal overlap between hatchery- and natural-origin steelhead and Chinook salmon during spawning in the Klickitat River, Washington, USA
Joseph S. Zendt, Brady Allen, Tobias J. Kock, Russell Perry, Adam C. Pope
2023, North American Journal of Fisheries Management (43) 1687-1701
A goal of many segregated salmonid hatchery programs is to minimize potential interbreeding between hatchery- and natural-origin fish. To assess this on the Klickitat River, Washington, USA, we used radiotelemetry during 2009–2014 to evaluate spatiotemporal spawning...
Validity of the Landsat surface reflectance archive for aquatic science: Implications for cloud-based analysis
Daniel Andrade Maciel, Nima Pahlevan, Claudio Clemente Faria Barbosa, Evlyn Marcia Leao de Moraes de Novo, Rejane Souza Paulino, Vitor Souza Martins, Eric Vermote, Christopher J. Crawford
2023, Limnology and Oceanography Letters (8) 820-858
Originally developed for terrestrial science and applications, the US Geological Survey Landsat surface reflectance (SR) archive spanning ~ 40 yr of observations has been increasingly utilized in large-scale water-quality studies. These products, however, have not been rigorously validated using in situ measured reflectance. This letter quantifies and demonstrates the quality of the...
Effects of sucker gigging on fish populations in Oklahoma scenic rivers
D. Zetner, D. E. Shoup, Shannon K. Brewer
2023, Cooperator Science Series FWS/CSS-151-2023
Suckers (Catostomidae) are ecologically important, and some support popular fisheries, despite not being considered ‘sport fish’ in most states. Gigging suckers is a popular and culturally significant pastime in the Ozark Highlands, but little is known about the effect of gigging harvest on population dynamics of suckers. Therefore, research is...
Analysis of high-resolution single channel seismic data for use in sediment resource evaluation, eastern Texas and western Louisiana Continental Shelf, Gulf of Mexico
James G. Flocks, Arnell S. Forde, Stephen T. Bosse
2023, Scientific Investigations Report 2023-5093
Shallow subsurface geologic data recorded as high-resolution seismic profiles are used to interpret the geology of coastal and marine systems. These data were originally recorded on paper rolls that are stored in geophysical archives. Data collection has since converted to entirely digital formats, yet the analog data are still useful...
DisasterNet: Causal Bayesian networks with normalizing flows for cascading hazards
Xuechun Li, Paula Madeline Burgi, Wei Ma, Haeyoung Noh, David J. Wald, Susu Xu
2023, Conference Paper, KDD '23: Proceedings of the 29th ACM SIGKDD conference on knowledge discovery and data mining
Sudden-onset hazards like earthquakes often induce cascading secondary hazards (e.g., landslides, liquefaction, debris flows, etc.) and subsequent impacts (e.g., building and infrastructure damage) that cause catastrophic human and economic losses. Rapid and accurate estimates of these hazards and impacts are critical for timely and effective post-disaster responses. Emerging remote sensing...
Response in the water quality of Delavan Lake, Wisconsin, to changes in phosphorus loading—Setting new goals for loading from its drainage basin
Dale M. Robertson, Benjamin J. Siebers, Reed A. Fredrick
2023, Scientific Investigations Report 2023-5073
During 1989–92, an extensive rehabilitation project was completed in and around Delavan Lake, Wisconsin, to improve the lake’s water quality. However, in 2016, the lake was listed by the Wisconsin Department of Natural Resources as impaired for excessive algal growth (high chlorophyll a concentrations), and high phosphorus input was listed...
Estimating streambed hydraulic conductivity for selected streams in the Mississippi Alluvial Plain using continuous resistivity profiling methods—Delta region
Ryan F. Adams, Benjamin Miller, Wade H. Kress, Burke J. Minsley, James R. Rigby
2023, Scientific Investigations Map 3500
Introduction The Mississippi Alluvial Plain is one of the most important agricultural regions in the United States, and crop productivity relies on groundwater irrigation from an aquifer system whose full capacity is unknown. Groundwater withdrawals from the Mississippi River Valley alluvial aquifer have resulted in substantial groundwater-level declines and reductions...
Scaling microseismic cloud shape during hydraulic stimulation using in-situ stress and permeability
Y. Mukuhira, M. Yang, T. Ishibashi, K. Okamoto, H. Moriya, Y. Kumano, H. Asanuma, S.A. Shapiro, Justin Rubinstein, T. Ito, K. Yan, Y. Zuo
2023, JGR Solid Earth (128)
Forecasting microseismic cloud shape as a proxy of stimulated rock volume may improve the design of an energy extraction system. The microseismic cloud created during hydraulic stimulation of geothermal reservoirs is known empirically to extend in the general direction of the maximum principal stress. However, this empirical relationship is often...
Converted-wave reverse time migration imaging in subduction zone settings
Leah Langer, Frederick Pollitz, Jeffrey J. McGuire
2023, Geophysical Journal International (235) 1384-1402
We use a newly developed 2-D elastic reverse time migration (RTM) imaging algorithm based on the Helmholtz decomposition to test approaches for imaging the descending slab in subduction zone regions using local earthquake sources. Our elastic RTM method is designed to reconstruct incident and scattered wavefields at depth, isolate...
Resilience of riparian vegetation productivity to early 21st century drought in northern California, USA
Paul Selmants, Caroline Rose Conrad, Tamara Wilson, Miguel L. Villarreal
2023, Ecosphere (14)
Drought and intensive land use can interact as stressors on riparian vegetation, especially along rivers flowing through seasonally dry landscapes. Knowledge of past riparian vegetation response to drought and land use change can provide land managers with a better understanding of changes induced by...
Biophysical factors control invasive annual grass hot spots in the Mojave Desert
Tanner Corless Smith, Tara B.B. Bishop, Michael C. Duniway, Miguel L. Villarreal, Anna C. Knight, Seth M. Munson, Eric K. Waller, Ryan Jensen, Richard A. Gill
2023, Biological Invasions (25) 3839-3859
Invasive annual grasses can promote ecosystem state changes and habitat loss in the American Southwest. Non-native annual grasses such as Bromus spp. and Schismus spp. have invaded the Mojave Desert and degraded habitat through increased fire occurrence, severity, and shifting plant community composition. Thus, it is important to identify and...
Potassium-39-derived 36Ar production during fission-neutron irradiation and its effect on 40Ar/39Ar ages
Jack N. Carter, Paul R. Renne, Leah E. Morgan
2023, Geochimica et Cosmochimica Acta (357) 26-34
Various interference reactions producing unwanted Ar isotopes from K, Ca, Cl and Ar require correction to satisfy the 40Ar/39Ar age equation. Using GEANT4, we design and build a model Cadmium Lined In Core Irradiation Tube (CLICIT) irradiation facility, as used in the...
Bayesian spatio-temporal survival analysis for all types of censoring with application to a wildlife disease study
Kehui Yao, Jun Zhu, Daniel J. O'Brien, Daniel P. Walsh
2023, Environmetrics (34)
In this article, we consider modeling arbitrarily censored survival data with spatio-temporal covariates. We demonstrate that under the piecewise constant hazard function, the likelihood for uncensored or right-censored subjects is proportional to the likelihood of multiple conditionally independent Poisson random variables. To address left- or interval-censored subjects, we propose to...
Understanding drivers of mercury in lake trout (Salvelinus namaycush), a top-predator fish in southwest Alaska's parklands
Krista K. Bartz, Michael P. Hannam, Tammy L. Wilson, Ryan F. Lepak, Jacob M. Ogorek, Daniel Young, Collin A. Eagles-Smith, David P. Krabbenhoft
2023, Environmental Pollution (330)
Mercury (Hg) is a widespread element and persistent pollutant, harmful to fish, wildlife, and humans in its organic, methylated form. The risk of Hg contamination is driven by factors that regulate Hg loading, methylation, bioaccumulation, and biomagnification. In remote locations, with infrequent access and limited data, understanding the relative importance...
CONUS404: The NCAR-USGS 4-km long-term regional hydroclimate reanalysis over the CONUS
R. M. Rasmussen, F. Chen, C. H. Liu, K. Ikeda, A. Prein, J. Kim, T. Schneider, A. Dai, D. Gochis, A. Dugger, Y. Zhang, A. Jaye, J. Dudhia, C. He, M. Harrold, L. Xue, S. Chen, A. Newman, E. Dougherty, R. Abolafia-Rozenzweig, N. Lybarger, Roland J. Viger, David P. Lesmes, Katherine Skalak, John Brakebill, Donald Walter Cline, Krista A. Dunne, K. Rasmussen, G. Miguez-Macho
2023, Bulletin of the American Meteorological Society (104) E1382-E1408
A unique, high-resolution, hydroclimate reanalysis, 40-plus-year (October 1979–September 2021), 4 km (named as CONUS404), has been created using the Weather Research and Forecasting Model by dynamically downscaling of the fifth-generation European Centre for Medium-Range Weather Forecasts (ECMWF) atmospheric reanalysis of the global climate dataset (ERA5) over the conterminous United States....
Diving deeper into seep distribution along the Cascadia Convergent Margin, USA
Jane A. Rudebusch, Nancy G. Prouty, James E. Conrad, Janet Watt, Jared W. Kluesner, Jenna C. Hill, Nathaniel C. Miller, Sally J. Watson, Jess Hillman
2023, Frontiers in Earth Science (11)
Previous margin-wide studies of methane seep distribution along the Cascadia Subduction Zone indicate peaks in seep density within the landward limit of the of gas hydrate stability zone (GHSZ; ≤500 m depth), suggesting a link between current ocean warming, acceleration of hydrate dissociated, and methane emissions. This inferred connection,...
Waterfowl show spatiotemporal trends in influenza A H5 and H7 infections but limited taxonomic variation
Cody M. Kent, Sarah N. Bevins, Jennifer M. Mullinax, Jeffery D. Sullivan, Diann Prosser
2023, Ecological Applications (33)
Influenza A viruses in wild birds pose threats to the poultry industry, wild birds, and human health under certain conditions. Of particular importance are wild waterfowl, which are the primary reservoir of low pathogenicity influenza viruses that ultimately cause high pathogenicity outbreaks in poultry farms. Despite much work on the...
Ten best practices for effective phenological research
Richard Primack, Amanda S. Gallinat, Elizabeth R. Ellwood, Theresa M. Crimmins, Mark D. Schwartz, Michelle Staudinger, Abraham J. Miller-Rushing
2023, International Journal of Biometeorology (67) 1509-1522
The number and diversity of phenological studies has increased rapidly in recent years. Innovative experiments, field studies, citizen science projects, and analyses of newly available historical data are contributing insights that advance our understanding of ecological and evolutionary responses to the environment, particularly climate change. However, many phenological data sets...
Satellite tracking reveals use of Biscayne National Park by sea turtles tagged in multiple locations
Kristen Hart, Allison Benscoter, Haley M. Turner, Michael Cherkiss, Andrew Crowder, Jacquelyn C. Guzy, David Roche, Christopher R. Sasso, Glenn D. Goodwin, Derek A. Burkholder
2023, Regional Studies in Marine Science (65)
Although historical observations date back to the 1800’s, there is little information on sea turtle occupancy within Biscayne National Park (BNP). The park is located along the Florida reef tract and is dominated by the Gulfstream, which acts as a corridor for many marine animals. Here we used satellite telemetry to determine areas of use in...
Estuarine salinity extremes: Using the Coastal Salinity Index to quantify the role of droughts, floods, hurricanes, and freshwater flow alteration
Laura Feher, Michael Osland, Christopher Swarzenski
2023, Estuarine, Coastal and Shelf Science (291)
In the face of accelerating climate change, advancing understanding of how extreme climatic events influence estuarine salinities can help to inform resource management. Extreme salinities driven by droughts, hurricanes, floods, and freshwater flow alterations can lead to ecological transformations in estuarine ecosystems. Here, we applied the Coastal Salinity Index (CSI; Conrads and Darby...
Hydrogeologic framework of southwestern Louisiana
Maxwell A. Lindaman
2023, Scientific Investigations Report 2023-5004
A hydrogeologic framework was constructed for the Coastal Lowlands aquifer system in southwestern Louisiana. Data from previous hydrogeologic and geologic studies were synthesized and expanded using 2,242 geophysical logs to map 4 hydrogeologic units: the Chicot aquifer system, Evangeline aquifer, Jasper aquifer system, and Catahoula aquifer. Raster surfaces were...
