Research in the refuge constraints to restoring diverse forest ecosystems at Hakalau
Stephanie G. Yelenik, Eli T. Rose, Eben H. Paxton, Evan M Rehm, Carla M. D'Antonio
2020, Newsletter, Friends of Hakalau Forst National Wildlife Refuge Newsletter
No abstract available. ...
Mineralogy and lithology of the Upper Cretaceous Niobrara Formation determined by hyperspectral core imaging
Justin E. Birdwell, Lionel C. Fontenot, Brigette Martini
2020, Mountain Geologist (57) 121-143
Sections of the Upper Cretaceous (Coniacian to Campanian) Niobrara Formation in two cores from Kansas and Colorado, the Amoco Rebecca Bounds and USGS Portland 1, respectively, were examined by hyperspectral core imaging and analysis. A spectral imaging system combining high-resolution photography (50 μm), 3D laser profiling (20 μm), and near-visible...
Parsing complex terrain controls on mountain glacier response to climate forcing
Caitlyn Elizabeth Florentine, Joel T. Harper, Daniel B. Fagre
2020, Global and Planetary Change (191)
Glaciers are a key indicator of changing climate in the high mountain landscape. Glacier variations across a mountain range are ultimately driven by regional climate forcing. However, changes also reflect local, topographically driven processes such as snow avalanching, snow wind-drifting, and radiation shading as well as the initial glacier conditions such as hypsometry and...
Automated location correction and spot height generation for named summits in the coterminous United States
Samantha Arundel, Gaurav Sinha
2020, International Journal of Digital Earth (13) 1570-1584
Spot elevations published on historical U.S. Geological Survey topographic maps were established as needed to enhance information imparted by the quadrangle’s contours. In addition to other features, labels were routinely placed on mountain summits. While some elevations were established through field survey triangulation, many were computed during...
Green turtle mitochondrial microsatellites indicate finer-scale natal homing to isolated islands than to continental nesting sites
Brian M. Shamblin, Kristen Hart, Kelly J. Martin, Simona A. Ceriani, Dean A. Bagley, Katherine L. Mansfield, Llewellyn M. Ehrhart, Campbell J. Nairn
2020, MEPS (643) 159-171
In highly mobile philopatric species, defining the scale of natal homing is fundamental to characterizing population dynamics and effectively managing distinct populations. Genetic tools have provided evidence of regional natal philopatry in marine turtles, but extensive sharing of maternally inherited mitochondrial control region (CR) haplotypes within regions (<500 km) often...
Use of strong habitat–abundance relationships in assessing population status of cryptic fishes: An example using the Harlequin Darter
Kathryn M Holcomb, Paul Schueller, Howard L. Jelks, John R Knight, Micheal S Allen
2020, Transactions of the American Fisheries Society (149) 320-334
Understanding trends in abundance is important to fisheries conservation, but techniques for estimating streamwide abundance of cryptic fishes with strong habitat–abundance relationships are not well established and need further development. We developed techniques for addressing this need using the Harlequin Darter Etheostoma histrio, a small, cryptic freshwater fish associated with submerged...
Predicting the floods that follow the flames
Jonathan J Gourley, Humberto Vergara, Ami Arthur, Robert A Clark, Dennis M. Staley, John W, Fulton, Laura A. Hempel, David C. Goodrich, Katherine Rowden, Peter R. Robichaud
2020, Bulletin of the American Meteorological Society (101) E1101-E1106
No abstract available....
Comparison of underwater video with electrofishing and dive‐counts for stream fish abundance estimation
Nathaniel P. Hitt, Karli M. Rogers, Craig D. Snyder, C. Andrew Dolloff
2020, Transactions of the American Fisheries Society (150) 24-37
Advances in video technology enable new strategies for stream fish research. We compared juvenile (age‐0) and adult (age 1+) Brook Trout Salvelinus fontinalis abundance estimates from underwater video with backpack electrofishing and dive‐count methods across a series of stream pools...
Quantifying drought’s influence on moist soil seed vegetation in California’s Central Valley through time-series remote sensing
Kristin B. Byrd, Austen Lorenz, James Anderson, Cynthia Wallace, Kara Moore-O'Leary, Jennifer Isola, Ricardo Ortega, Matt Reiter
2020, Ecological Applications (30)
Californias Central Valley, USA is a critical component of the Pacific Flyway despite loss of more than 90% of its wetlands. Moist soil seed (MSS) wetland plants are now produced by mimicking seasonal flooding in managed wetlands to provide an essential food resource for waterfowl. Managers need MSS plant area...
User guide to the bayesian modeling of non-stationary, univariate, spatial data using R language package BMNUS
Karl J. Ellefsen, Margaret A. Goldman, Bradley S. Van Gosen
2020, Techniques and Methods 7-C20
Bayesian modeling of non-stationary, univariate, spatial data is performed using the R-language package BMNUS. A unique advantage of this package is that it can map the mean, standard deviation, quantiles, and probability of exceeding a specified value. The package includes several R-language classes that prepare the data for the modeling,...
Bayesian modeling of non-stationary, univariate, spatial data for the Earth sciences
Karl J. Ellefsen, Bradley S. Van Gosen
2020, Techniques and Methods 7-C24
Some Earth science data, such as geochemical measurements of element concentrations, are non-stationary—the mean and the standard deviation vary spatially. It is important to estimate the spatial variations in both statistics because such information is indicative of geological and other Earth processes. To this end, an estimation method is formulated...
Continuous water-quality and suspended-sediment transport monitoring in the San Francisco Bay, California, water years 2016–17
Darin C. Einhell, Maureen A. Downing-Kunz, Daniel N. Livsey
2020, Fact Sheet 2020-3023
The U.S. Geological Survey (USGS) monitors water quality and suspended-sediment transport in the San Francisco Bay (Bay) as part of a multi-agency effort to address estuary management, water supply, and ecological concerns. The San Francisco Bay area is home to millions of people, and the Bay teems with plants and...
Geologic map of the southern flank of Mauna Loa Volcano, Island of Hawai‘i, Hawaii
Frank A. Trusdell, John P. Lockwood
2020, Scientific Investigations Map 2932-C
On the Island of Hawaiʻi, Mauna Loa, the largest volcano on Earth, has erupted 33 times since written descriptions became available in 1832. Some eruptions began with only brief seismic unrest, whereas others followed several months to a year of increased seismicity. Once underway, its eruptions can produce lava flows...
Stormwater control impacts on runoff volume and peak flow: A meta-analysis of watershed modelling studies
Colin D. Bell, Jordyn M. Wolfand, Chelsea L. Panos, Aditi S. Bhaskar, Ryan L. Gilliom, Terri S. Hogue, Kristina G. Hopkins, Anne J. Jefferson
2020, Hydrological Processes (34) 3134-3152
Decades of research has concluded that the percent of impervious surface cover in a watershed is strongly linked to negative impacts on urban stream health. Recently, there has been a push by municipalities to offset these effects by installing structural stormwater control measures (SCMs), which are landscape features designed to...
InFRM Flood Decision Support Toolbox user guide
Interagency Flood Risk Management (InFRM)
2020, Report
Digital geospatial flood inundation mapping can be a powerful tool for flood risk management. Flood preparedness, communication, warning, response and mitigation can be enhanced by flood inundation mapping that shows floodwater extent and depth over the land surface. Flood inundation maps that accurately reflect observed and forecasted hydrodynamic...
Fostering real-time climate adaptation: Analyzing past, current, and forecast temperature to understand the dynamic risk to Hawaiian honeycreepers from avian malaria
Lucas B. Fortini, Lauren R. Kaiser, Dennis Lapointe
2020, Global Ecology and Conservation (23)
Various vector control options are increasingly being considered to safeguard forest birds in their natural habitats from avian malaria transmission. However, vector control options require localized deployment that is not logistically, ethically, ecologically, nor economically viable everywhere and all the time. Based on thermal tolerances of the sporogonic stages of...
Polymeric nanofiber-carbon nanotube composite mats as fast-equilibrium passive samplers for polar organic pollutants
Jiajie Qian, Andres Martinez, Rachel F Marek, Matthew R. Nagorzanski, Hui Zhi, Edward Furlong, Dana W. Kolpin, Gregory H. LeFevre, David M. Cwiertny
2020, Environmental Science & Technology (54) 6703-6712
To improve the performance of polymeric electrospun nanofiber mats (ENMs) for equilibrium passive sampling applications in water, we integrated two types of multiwalled carbon nanotubes (CNTs; with and without surface carboxyl groups) into polyacrylonitrile (PAN) and polystyrene (PS) ENMs. For 11 polar and moderately hydrophobic compounds (−0.07 ≤ logKOW ≤ 3.13),...
Lessons learned from monitoring of turbidity currents and guidance for future platform designs
Michael Clare, D. Gwyn Lintern, Kurt J. Rosenberger, John Hughes Clarke, Charles K. Paull, Roberto Gwiazda, Matthieu J.B. Cartigny, Peter J. Talling, Daniel Perara, Jingping Xu, Daniel Parsons, Ricardo Silva Jacinto, Ronan Apprioual
2020, Special Publications (500) 605-634
Turbidity currents transport globally significant volumes of sediment and organic carbon into the deep-sea and pose a hazard to critical infrastructure. Despite advances in technology, their powerful nature often damages expensive instruments placed in their path. These challenges mean that turbidity currents have only been measured in a few locations...
Economic, land use, and ecosystem services impacts of Rwanda's Green Growth Strategy: An application of the IEEM+ESM platform
Onil Banerjee, Kenneth J. Bagstad, Martin Cicowiecz, Sebastian Dudek, Mark Horridge, Janaki Alavalapati, Michel K. Masozera, Emmanuel Rukundo, Evariste Rutebuka
2020, Science of the Total Environment (729)
We develop and link the Integrated Economic-Environmental Modeling (IEEM) Platform to ecosystem services modeling (ESM). The IEEM+ESM Platform is an innovative decision-making framework for exploring complex public policy goals and elucidating synergies and trade-offs between alternative policy portfolios. The IEEM+ESM approach is powerful in its ability to shed light on...
Longitudinal, lateral, vertical, and temporal thermal heterogeneity in a large impounded river: Implications for cold-water refuges
Francine H. Mejia, Christian E. Torgersen, Eric K Berntsen, Joseph R Maroney, J M Connor, Aimee H. Fullerton, Joseph L. Ebersole, Mark L Lorang
2020, Remote Sensing (12)
Dam operations can affect mixing of the water column, thereby influencing thermal heterogeneity spatially and temporally. This occurs by restricting or eliminating connectivity in longitudinal, lateral, vertical, and temporal dimensions. We examined thermal heterogeneity across space and time and identified potential cold-water refuges for salmonids in a large impounded river...
Time-dependent accumulation of Cd, Co, Cu, Ni, and Zn in mayfly and caddisfly larvae in experimental streams: Metal sensitivity, uptake pathways, and mixture toxicity
Laurie S. Balistrieri, Christopher A. Mebane, Travis S. Schmidt
2020, Science of the Total Environment (732)
Conceptual and quantitative models were developed to assess time-dependent processes in four sequential experimental stream studies that determined abundances of natural communities of mayfly and caddisfly larvae dosed with single metals (Cd, Co, Cu, Ni, Zn) or multiple metals (Cd+Zn, Co+Cu, Cu+Ni, Cu+Zn, Ni+Zn, Cd+Cu+Zn, Co+Cu+Ni, Cu+Ni+Zn). Metal mixtures...
Trophodynamics of per- and polyfluoroalkyl substances in the food web of a large Atlantic slope river
T. N. Penland, W. G. Cope, Thomas J. Kwak, M.J. Strynar, C. A. Grieshaber, R. J. Heise, F.W. Sessions
2020, Environmental Science and Technology (54) 6800-6811
Per- and polyfluoroalkyl substances (PFASs) have attracted scientific and regulatory attention due to their persistence, bioaccumulative potential, toxicity, and global distribution. We determined the accumulation and trophic transfer of 14 PFASs (5 short-chain and 9 long-chain) within the food web of...
Discovery of a reproducing wild population of the swamp eel Amphipnous cuchia (Hamilton, 1822) in North America
Frank Jordan, Leo Nico, Krystal Huggins, Peter J. Martinat, Dahlia A. Martinez, Victoria L. Rodrigues
2020, BioInvasions Records (9) 367-374
We report discovery of an established population of the Asian swamp eel Amphipnous cuchia (Hamilton, 1822) in Bayou St. John, an urban waterway in New Orleans, Louisiana, USA. This fish, commonly referred to as cuchia (kuchia), is a member of the family Synbranchidae and is native to southern and southeastern Asia. Recently-used...
Magnitude and frequency of floods in Alabama, 2015
Brandon T. Anderson
2020, Scientific Investigations Report 2020-5032
To improve flood-frequency estimates at rural streams in Alabama, annual exceedance probability flows at gaged locations and regional regression equations used to estimate annual exceedance probability flows at ungaged locations were developed by using current geospatial data, new analytical methods, and annual peak-flow data through September 2015 at 242 streamgages...
Disturbances drive changes in coral community assemblages and coral calcification capacity
Travis A. Courtney, Brian B. Barnes, Iliana Chollett, Robin Elahi, Kevin Gross, James R. Guest, Ilsa B. Kuffner, Elizabeth A. Lenz, Hanna R Nelson, Caroline Rogers, Lauren Toth, Andreas J Andersson
2020, Ecosphere (11)
Anthropogenic environmental change has increased coral reef disturbance regimes in recent decades, altering the structure and function of many coral reefs globally. In this study, we used coral community survey data collected from 1996 to 2015 to evaluate coral calcification capacity (CCC) dynamics with respect to recorded pulse disturbances for...
