U.S. Geological Survey Karst Interest Group Proceedings, October 19–20, 2021
Eve L. Kuniansky, Lawrence E. Spangler, editor(s)
2021, Scientific Investigations Report 2020-5019
Karst hydrogeologic systems represent challenging and unique conditions to scientists attempting to study groundwater flow and contaminant transport. Karst terrains are characterized by distinct and beautiful landscapes, caverns, and springs, and many of the exceptional karst areas are designated as national or state parks. The range and complexity of landforms...
Landsat Update October 2021
Anya Hartpence
2021, Newsletter
No abstract available....
Sediment transport in the Yankee Fork of the Salmon River near Stanley, Idaho, water years 2012–19
Gregory M. Clark, Scott D. Ducar
2021, Scientific Investigations Report 2021-5111
Placer and dredging operations in the Yankee Fork Basin, Idaho, have left more than 5 miles of the lower Yankee Fork of the Salmon River (Yankee Fork) in a highly altered fluvial condition, resulting in poor habitat quantity and quality for native fish species. Since 2011, the Bureau of...
A comparison of Landsat 8 Operational Land Imager and Provisional Aquatic Reflectance science product, Sentinel–2B, and WorldView–3 imagery for empirical satellite-derived bathymetry, Unalakleet, Alaska
Sandra K. Poppenga, Jeffrey J. Danielson
2021, Scientific Investigations Report 2021-5097
Satellite-derived bathymetry (SDB) based upon an empirical band ratio method is a cost-effective means for mapping nearshore bathymetry in coastal areas vulnerable to natural hazards. This is particularly important for the low-lying coastal community of Unalakleet, Alaska, that has been negatively affected not only by flooding, storm surge, and historically...
Changes in vegetation structure and gopher tortoise population structure after 17 years of restoration management
Rebecca C. Pudner, Hardin Waddle, Suzi P. Mersmann, John S. Kush, Craig Guyer, Sharon M. Hermann
2021, Natural Areas Journal (41) 273-282
We examined a study plot sampled in the Conecuh National Forest of southern Alabama in 1999 and again in 2016 after stand thinning and persistent prescribed fire were used to improve habitat quality. These management activities were designed, in part, to enhance habitat quality for the gopher tortoise (Gopherus polyphemus),...
Testing a generalizable machine learning workflow for aquatic invasive species on Rainbow Trout (Oncorhynchus mykiss) in northwest Montana
Sean C. Carter, Charles B. van Rees, Brian K. Hand, Clint C. Muhlfeld, Gordon Luikart, John S Kimball
2021, Frontiers in Big Data (October 2021)
Biological invasions are accelerating worldwide, causing major ecological and economic impacts in aquatic ecosystems. The urgent decision-making needs of invasive species managers can be better met by the integration of biodiversity big data with large-domain models and data-driven products. Remotely sensed data products can be combined with existing invasive species...
Acute mortality in California tiger salamander (Ambystoma californiense) and Santa Cruz long-toed salamander (Ambystoma macrodactylum croceum) caused by Ribeiroia ondatrae (Class: Trematoda)
Saskia Keller, Constance Roderick, Christopher Caris, Daniel A. Grear, Rebecca A. Cole
2021, International Journal for Parasitology: Parasites and Wildlife (16) 255-261
In early September 2019, a morbidity and mortality event affecting California tiger salamanders (Ambystoma californiense) and Santa Cruz long-toed salamanders (Ambystoma macrodactylum croceum) in late stages of metamorphosis was reported at a National Wildlife Refuge in Santa Cruz County, California, U.S.A. During the postmortem disease investigation, severe integumentary metacercarial (Class:...
The effects of ENSO and the North American monsoon on mast seeding in two Rocky Mountain conifer species
Andreas Wion, Ian Pearse, Kyle C. Rodman, Thomas T. Veblen, Miranda Redmond
2021, Philosophical Transactions of the Royal Society B: Biological Sciences (376)
We aimed to disentangle the patterns of synchronous and variable cone production (i.e. masting) and its relationship to climate in two conifer species native to dry forests of western North America. We used cone abscission scars to reconstruct ca 15 years of recent cone production in Pinus edulis and Pinus ponderosa, and used redundancy analysis...
The ecology and evolution of synchronized reproduction in long-lived plants
Mario B. Pesendorfer, Davide Ascoli, Michal Bogdziewicz, Andrew Hacket-Pain, Ian Pearse, Giorgio Vacchiano
2021, Philosophical Transactions of the Royal Society B: Biological Sciences (376)
Populations of many long-lived plants exhibit spatially synchronized seed production that varies extensively over time, so that seed production in some years is much higher than on average, while in others, it is much lower or absent. This phenomenon termed masting or mast seeding has important consequences for plant reproductive success, ecosystem dynamics and...
Machine learning predictions of nitrate in groundwater used for drinking supply in the conterminous United States
Katherine Marie Ransom, Bernard T. Nolan, Paul E. Stackelberg, Kenneth Belitz, Miranda S. Fram
2021, Science of the Total Environment
Groundwater is an important source of drinking water supplies in the conterminous United State (CONUS), and presence of high nitrate concentrations may limit usability of groundwater in some areas because of the...
Evolution in eruptive style of the 2018 eruption of Veniaminof volcano, Alaska, reflected in groundmass textures and remote sensing
Matthew W. Loewen, Hannah R. Dietterich, Nathan Graham, Pavel Izbekof
2021, Bulletin of Volcanology (83)
Variable eruptive style and explosivity is common in basaltic to basaltic andesite volcanoes but can have uncertain origins. Veniaminof volcano in the Alaska-Aleutian arc is a frequently active open-vent center, regularly producing Strombolian eruptions and small lava flows from an intracaldera cone within an intracaldera ice...
Modes of climate variability bridge proximate and evolutionary mechanisms of masting
Davide Ascoli, Andrew Hacket-Pain, Ian S. Pearse, Giorgio Vacchiano, Susanna Corti, Paolo Davini
2021, Philosophical Transactions of the Royal Society B: Biological Sciences (376)
There is evidence that variable and synchronous reproduction in seed plants (masting) correlates to modes of climate variability, e.g. El Niño Southern Oscillation and North Atlantic Oscillation. In this perspective, we explore the breadth of knowledge on how climate modes control reproduction in major masting species throughout Earth's biomes. We...
Active virus-host interactions at sub-freezing temperatures in Arctic peat soil
Gareth Trubl, Jeffrey A Kimbrel, Jose Liquet-Gonzalez, Erin E. Nuccio, Peter K. Weber, Jennifer Pett-Ridge, Janet K. Jansson, Mark Waldrop, Steve Blazewicz
2021, Microbiome (9)
BackgroundWinter carbon loss in northern ecosystems is estimated to be greater than the average growing season carbon uptake and is primarily driven by microbial decomposers. Viruses modulate microbial carbon cycling via induced mortality and metabolic controls, but it is unknown whether viruses are active under winter conditions (anoxic and...
Understanding mast seeding for conservation and land management
Ian S. Pearse, Andreas Wion, Angela Gonzalez, Mario B. Pesendorfer
2021, Philosophical Transactions of the Royal Society B: Biological Sciences (376)
Masting, the intermittent and synchronous production of large seed crops, can have profound consequences for plant populations and the food webs that are built on their seeds. For centuries, people have recorded mast crops because of their importance in managing wildlife populations. In the past 30 years, we have begun...
Effects of hydrologic variability and remedial actions on first flush and metal loading from streams draining the Silverton caldera, 1992–2014
Tanya N Petach, Robert L. Runkel, Rory M. Cowie, Diane M. McKnight
2021, Hydrological Processes (35)
This study examined water quality in the upper Animas River watershed, a mined watershed that gained notoriety following the 2015 Gold King mine release of acid mine drainage to downstream communities. Water-quality data were used to evaluate trends in metal concentrations and loads over a two-decade...
Similarities and differences between two deadly Caribbean coral diseases: White plague and stony coral tissue loss disease
Aldo Cróquer, Ernesto Weil, Caroline Rogers
2021, Frontiers in Marine Science (8)
For several decades, white plagues (WPDs: WPD-I, II and III) and more recently, stony coral tissue loss disease (SCTLD) have significantly impacted Caribbean corals. These diseases are often difficult to separate in the field as they produce similar gross signs. Here we aimed to compare what we know...
Limited co-existence of native unionids and invasive dreissenid mussels more than 30 Y post dreissenid invasion in a large river system
S. Keretz, D. Woolnough, Edward F. Roseman, T.J. Morris, A. Elgin, D.T. Zanatta
2021, American Midland Naturalist (186) 157-175
There are serious concerns for native freshwater mussel survival (Bivalvia: Unionidae) in the Laurentian Great Lakes region after populations were seemingly pushed to the brink of extirpation following the introduction of dreissenid mussels (Dreissena polymorpha and D. rostriformis bugensis) in the mid-1980s. The Detroit River was the first major...
Active neutron interrogation experiments and simulation verification using the SIngle-scintillator Neutron and Gamma-Ray spectrometer (SINGR) for geosciences
Lena E. Heffern, Craig J. Hardgrove, Ann Parsons, E. B. Johnson, R. Starr, G. Stoddard, R. E. Blakeley, T. Prettyman, Travis S.J. Gabriel, H. Barnaby, J. Christian, M.A. Unzueta, C. Tate, Alynn Martin, J. Moersch
2021, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment (1020)
We present a new SIngle-scintillator Neutron and Gamma Ray spectrometer (SINGR) instrument for use with both passive and active measurement techniques. Here we discuss the application of SINGR for planetary exploration missions, however, hydrology, nuclear non-proliferation, and resource prospecting are all...
Influence of permafrost type and site history on losses of permafrost carbon after thaw
Kristen L. Manies, Miriam C. Jones, Mark Waldrop, Mary-Catherine Leewis, Christopher C. Fuller, Robert S. Cornman, Kristen Hoefke
2021, Journal of Geophysical Research-Biogeosciences (126)
We quantified permafrost peat plateau and post-thaw carbon (C) stocks across a chronosequence in Interior Alaska to evaluate the amount of C lost with thaw. Macrofossil reconstructions revealed three stratigraphic layers of peat: (1) a base layer of fen/marsh peat, (2) peat from a forested peat plateau...
Preface to book: Wetland carbon and environmental management
Ken Krauss, Zhiliang Zhu, Camille Stagg
Ken W. Krauss, Zhiliang Zhu, Camille L. Stagg, editor(s)
2021, Book chapter, Wetland carbon and environmental management
The idea for this book, including its organization and contents, has its origin in the latest environmental and climate policy requirements in the United States, as well as science advances. In 2007, the U.S. Congress passed the Energy Independence and Security Act (EISA), from which Section 712 required U.S. Federal...
Potential for carbon and nitrogen sequestration by restoring tidal connectivity and enhancing soil surface elevations in denuded and degraded south Florida mangrove ecosystems
N. Cormier, Ken Krauss, Amanda Demopoulos, Brita J. Jessen, Jennifer McClain Counts, Andrew From, Laura L. Flynn
Ken W. Krauss, Zhiliang Zhu, Camille L. Stagg, editor(s)
2021, Book chapter, Wetland carbon and environmental management
Mangroves are tidally dependent wetlands that are influenced often by alterations in hydrology associated with coastal developments that impact their distribution, health, and function. Alteration in frequency, depth, duration, and seasonality of tidal inundation can lead to changes in forest condition, although these stress-adapted ecosystems may persist for many years...
Carbon fluxes and potential soil accumulation within Greater Everglades cypress and pine forested wetlands
W. Barclay Shoemaker, Frank E. Anderson, Andre Daniels, Matt Sirianni
Zhiliang Zhu, Ken W. Krauss, Camille L. Stagg, editor(s)
2021, Book chapter, Wetland carbon and environmental management
In forested wetlands, accumulation of organic matter in soil is partly governed by carbon fluxes where photosynthesis, respiration, lateral advection of waterborne carbon, fire-derived carbon emissions, and methanogenesis are balanced by changes in stored carbon. Stored carbon can eventually accumulate as soil over time if net primary productivity exceeds biomass...
Modeling the impacts of hydrology and management on carbon balance at the Great Dismal Swamp, Virginia and North Carolina, USA
Rachel Sleeter
Ken W. Krauss, Zhiliang Zhu, Camille L. Stagg, editor(s)
2021, Book chapter, Wetland carbon and environmental management
The impact of drainage on the stability of peatland carbon sinks is well known; however, much less is understood regarding the way active management of the water-table affects carbon balance. In this study, we determined the carbon balance in the Great Dismal Swamp, a large, forested peatland in the southeastern...
Summary of wetland carbon and environmental management: Path forward
Zhiliang Zhu, Ken Krauss, Camille Stagg, Eric Ward, Victoria Woltz
Zhiliang Zhu, Ken W. Krauss, Camille L. Stagg, editor(s)
2021, Book chapter, Wetland carbon and environmental management
Wetlands around the world are under pressure from both anthropogenic sources such as land-use change and accelerating climate change (Erwin, 2009; Moomaw et al., 2018). Storage of carbon resources is a key ecosystem service of wetlands and offer natural solutions to climate change mitigation; policies and management actions could determine...
The importance of wetland carbon dynamics to society: Insight from the Second State of the Carbon Cycle Science Report
Randall Kolka, Carl Trettin, Lisamarie Windham-Myers
Ken W. Krauss, Zhiliang Zhu, Camille L. Stagg, editor(s)
2021, Book chapter, Wetland carbon and environmental management
The Second State of the Carbon Cycle Report (SOCCR2) culminated in 19 chapters that spanned all North American sectors – from Energy Systems to Agriculture and Land Use – known to be important for understanding carbon (C) cycling and accounting. Wetlands, both inland and coastal, were found to be significant...
