Embryonic effects of an environmentally relevant PCB mixture in the domestic chicken
Mary Ann Ottinger, Emma T. Lavoie, Mary E. B. Bohannon, Allegra M. Marcel, Anna E. Tschiffely, Kara B. Duffy, Moira A. McKernan, Nichola Thompson, H. Kasen Whitehouse, Kimya Davani, Marci Strauss, Donald E. Tillitt, Joshua Lipton, Karen M. Dean
2018, Environmental Toxicology and Chemistry (37) 2513-2522
Studies were conducted to develop methods to assess the effects of a complex mixture of polychlorinated biphenyls (PCBs) in the domestic chicken (Gallus domesticus). Treatments were administered by egg injection to compare embryonic effects of an environmentally relevant PCB congener mixture in the domestic chicken over a range of doses....
Regional patterns in the geochemistry of oil-field water, southern San Joaquin Valley, California, USA
Peter B. McMahon, Justin T. Kulongoski, Avner Vengosh, Isabelle M. Cozzarelli, Matthew K. Landon, Yousif K. Kharaka, Janice M. Gillespie, Tracy Davis
2018, Applied Geochemistry (98) 127-140
Chemical and isotopic data for water co-extracted with hydrocarbons in oil and gas fields are commonly used to examine the source of the formation water and possible impacts on groundwater in areas of oil and gas development. Understanding the geochemical variability of oil-field water could help to evaluate its origin and delineate possible contamination of shallow aquifers in...
Application of Raman spectroscopy as thermal maturity probe in shale petroleum systems: Insights from natural and artificial maturation series
Paul C. Hackley, N. Keno Lunsdorf
2018, Energy & Fuels (32) 11190-11202
Raman spectroscopy was studied as a thermal maturity probe in a series of Upper Devonian Ohio Shale samples from the Appalachian Basin spanning from immature to dry gas conditions. Raman spectroscopy also was applied to samples spanning a similar thermal range...
100-year lower Mississippi floods in a global climate model: Characteristics and future changes
Karin van der Wiel, Sarah B. Kapnick, Gabriel A. Vecchi, James A. Smith, Paul C. D. Milly, Liwei Jia
2018, Journal of Hydrometeorology (19) 1547-1563
Floods in the Mississippi basin can have large negative societal, natural, and economic impacts. Understanding the drivers of floods, now and in the future, is relevant for risk management and infrastructure-planning purposes. We investigate the drivers of 100-yr-return lower Mississippi River floods using a global coupled climate model with an...
Heterogeneity of a landscape influences size of home range in a North American cervid
W. David Walter, Tyler S. Evans, David Stainbrook, Bret D. Wallingford, Christopher S. Rosenberry, Duane R. Diefenbach
2018, Scientific Reports (8)
In the northeastern United States, chronic wasting disease has recently been detected in white-tailed deer (Odocoileus virginianus) populations, and understanding the relationship between landscape configuration and home range may improve disease surveillance and containment efforts. The objectives of our study were to compare size of home range for deer occupying...
Climate Assessments and Scenario Planning (CLASP)
Alexander Bryan
2018, Report
The NE CASC boasts an interdisciplinary array of scientists, from ecologists to biologists, hydrologists to climatologists, each contributing new, original academic research to advance our understanding of the impacts of climate change on wildlife and other natural resources in the Northeast. Needed was an...
Current research in land, water, and agroecosystems: ASABE journals 2017 year in review
Kyle R. Douglas-Mankin
2018, Transactions of the ASABE (61) 1639-1651
This article highlights current research into land and water resources, agroecosystems, and agricultural production systems published by the Natural Resources and Environmental Systems (NRES) community of ASABE journals (Transactions of the ASABE and Applied Engineering in Agriculture) in 2017. This article reviews the context, scope, and key results of the...
Wetland stratigraphic evidence for variable megathrust earthquake rupture modes at the Cascadia subduction zone
Alan R. Nelson, Robert C. Witter, Simon Englehart, Andrea Hawkers, Benjamin P. Horton
2018, Conference Paper, IGCP Project 639: Sea-level change from minutes to millenia
Although widespread agreement that the Cascadia subduction zone produces great earthquakes of magnitude 8 to 9 was reached decades ago, debate continues about the rupture lengths, magnitudes, and frequency of megathrust earthquakes recorded by wetland stratigraphy fringing Cascadia’s estuaries. Correlation of such coastal earthquake evidence along the subduction zone has...
Development of a domestic earthquake alert protocol combining the USGS pager and FEMA Hazus systems
David J. Wald, H.A. Seligson, Jesse Rozelle, J. Burns, Kristin Marano, Kishor S. Jaiswal, Mike Hearne, D Bausch
2018, Conference Paper
The U.S. Geological Survey’s PAGER automated alert system provides rapid (10-20 min) loss estimates in terms of ranges of fatalities and economic impact for all significant earthquakes around the globe. In contrast, FEMA’s Hazus software, which is currently operated manually by FEMA personnel internally within several hours of any large...
Impacts of temporal revisit designs on the power to detect trend with a linear mixed model: An application to long-term monitoring of Sierra Nevada lakes
Leigh Ann H. Starcevich, Kathryn M. Irvine, Andrea M. Heard
2018, Ecological Indicators (93) 847-855
Long-term ecological monitoring programs often use linear mixed models to estimate trend in an ecological indicator sampled across large landscapes. A linear mixed model is versatile for estimating a linear trend in time as well as components of spatial and temporal variationin the case of unbalanced data structures, which are common in complex monitoring designs where...
State transportation agencies partner to deploy and enhance ShakeCast
L. Turner, David J. Wald, Kuo-wan Lin, Brian Chiou, Daniel Slosky
2018, Conference Paper, Proceedings of the Eleventh National Conference on Earthquake Engineering
The California Department of Transportation (Caltrans) is organizing and leading a three-year Transportation Pooled Fund (TPF) project, Connecting the Dots: Implementing ShakeCast Across Multiple State Departments of Transportation for Rapid Post-Earthquake Response. Ten state Departments of Transportation (DOT)—CA, ID, MO, MS, OK, OR, SC, TX, UT, AND WA—have partnered and...
Multidirectional abundance shifts among North American birds and the relative influence of multifaceted climate factors
Qiongyu Huang, John R. Sauer, Ralph O. Dubayah
2018, Global Change Biology (23) 3610-3622
Shifts in species distributions are major fingerprint of climate change. Examining changes in species abundance structures at a continental scale enables robust evaluation of climate change influences, but few studies have conducted these evaluations due to limited data and methodological constraints. In this study, we estimate temporal changes in abundance...
Performance assessments of a novel well design for reducing exposure to bedrock‐derived arsenic
Richard B. Winston, Joseph D. Ayotte
2018, Groundwater (56) 762-769
Arsenic in groundwater is a serious problem in New England, particularly for domestic well owners drawing water from bedrock aquifers. The overlying glacial aquifer generally has waters with low arsenic concentrations but is less used because of frequent loss of well water during dry periods and the vulnerability to surface‐sourced...
Tidal response of groundwater in a leaky aquifer—Application to Oklahoma
Chi-Yuen Wang, Mai-Linh Doan, Lian Xu, Andrew J. Barbour
2018, Water Resources Research (54) 8019-8033
Quantitative interpretation of the tidal response of water levels measured in wells has long been made either with a model for perfectly confined aquifers or with a model for purely unconfined aquifers. However, many aquifers may be neither totally confined nor purely unconfined at the frequencies of tidal loading but...
Hydrodynamics and sediment mobility processes over a degraded senile coral reef
Legna M. Torres-Garcia, P. Soupy Dalyander, Joseph W. Long, David G. Zawada, Kimberly K. Yates, Christopher Moore, Maitane Olabarrieta
2018, Journal of Geophysical Research: Oceans (123) 7053-7066
Coral reefs can influence hydrodynamics and morphodynamics by dissipating and refracting incident wave energy, modifying circulation patterns, and altering sediment transport pathways. In this study, the sediment and hydrodynamic response of a senile (dead) barrier reef (Crocker Reef, located in the upper portion of the Florida Reef Tract) to storms...
Interactions and impacts of domesticated animals on cranes in agriculture
Jane E. Austin, Kunikazu Momose, George W. Archibald
2018, Book chapter, Cranes and agriculture: A global guide for sharing the landscape
Affiliations of most cranes to humans and agriculture means they often interact with a variety of domestic animals. Those interactions can be beneficial or neutral when domestic animal densities and their impact on wetland or grassland systems are low to moderate, as found in more traditional agricultural practices. The most...
What makes a first‐magnitude spring?: Global sensitivity analysis of a speleogenesis model to gain insight into karst network and spring genesis
Wesley R. Henson, Rob de Rooij, Wendy D. Graham
2018, Water Resources Research (54) 7417-7434
Often, karstic conduit network geometry is unknown. This lack of knowledge represents a significant limitation when modeling flow and solute transport in karst systems. In this study, we apply Morris Method Global Sensitivity Analysis to a speleogenesis model to identify model input parameters, and combinations thereof, that most significantly influence...
Stock structure, dynamics, demographics, and movements of walleyes spawning in four tributaries to Green Bay
Daniel J. Dembkowski, Daniel A. Isermann, Steven R. Hogler, Wesley Larson, Keith N. Turnquist
2018, Journal of Great Lakes Research (44) 970-978
To test assumptions related to the current conceptual model for walleye Sander vitreusmanagement in Green Bay, we evaluated whether: 1) spawning aggregations in the Fox, Menominee, Oconto, and Peshtigo rivers represent genetically distinct stocks; 2) population dynamics and demographics vary among walleye spawning at these locations; 3) walleye spawning in these rivers contribute to...
Simulation of groundwater flow, 1895–2010, and effects of additional groundwater withdrawals on future stream base flow in the Elkhorn and Loup River Basins, central Nebraska—Phase three
Amanda T. Flynn, Jennifer S. Stanton
2018, Scientific Investigations Report 2018-5106
The U.S. Geological Survey, in cooperation with the Lewis and Clark, Lower Elkhorn, Lower Loup, Lower Platte North, Lower Niobrara, Middle Niobrara, Upper Elkhorn, and the Upper Loup Natural Resources Districts, designed a study to refine the spatial and temporal discretization of a previously modeled area. This updated study focused on...
Evaluation of anal fin spines, otoliths, and scales for estimating age and back-calculated lengths of yellow perch in southern Green Bay
Daniel A. Isermann, Jason J. Breeggemann, Tammie J. Paroli
2018, Journal of Great Lakes Research (44) 979-989
Southern Green Bay supports important fisheries for yellow perch Perca flavescens and valid estimates of age structure and growth are critical to effective management. Anal fin spines and scales are used by the Wisconsin Department of Natural Resources for age estimation, but these structures may provide lower precision and accuracy than otoliths. The primary objective of our assessment was to...
Occupancy modeling species–environment relationships with non‐ignorable survey designs
Kathryn M. Irvine, Thomas J. Rodhouse, Wilson J. Wright, Anthony R. Olsen
2018, Ecological Applications (28) 1616-1625
Statistical models supporting inferences about species occurrence patterns in relation to environmental gradients are fundamental to ecology and conservation biology. A common implicit assumption is that the sampling design is ignorable and does not need to be formally accounted for in analyses. The analyst assumes data are representative of the...
A geostatistical state‐space model of animal densities for stream networks
Daniel J. Hocking, James T. Thorson, Kyle O’Neil, Benjamin H. Letcher
2018, Ecological Applications (28) 1782-1796
Population dynamics are often correlated in space and time due to correlations in environmental drivers as well as synchrony induced by individual dispersal. Many statistical analyses of populations ignore potential autocorrelations and assume that survey methods (distance and time between samples) eliminate these correlations, allowing samples to be treated independently....
Economics, helium, and the U.S. Federal Helium Reserve: Summary and outlook
Steven T. Anderson
2018, Natural Resources Research (27) 455-477
In 2017, disruptions in the global supply of helium reminded consumers, distributors, and policy makers that the global helium supply chain lacks flexibility, and that attempts to increase production from the U.S. Federal Helium Reserve (the FHR) may not be able to compensate for the loss of one of the...
Delineation of contributing areas for 2017 pumping conditions to selected wells in Ingham County, Michigan
Carol L. Luukkonen
2018, Open-File Report 2018-1133
As part of local wellhead protection area programs, areascontributing water to production wells need to be periodicallyupdated because groundwater-flow paths depend in part onthe stresses to the groundwater-flow system. A steady-stategroundwater-flow model that was constructed in 2009 wasupdated to reflect recent (2017) pumping conditions in theLansing and East Lansing area...
Great Lakes coastal fish habitat classification and assessment
K. E. Kovalenko, L.B. Johnson, C. M. Riseng, M. J. Cooper, K. Johnson, L. A. Mason, James E. McKenna Jr., B. L. Sparks-Jackson, D.G. Uzarski
2018, Journal of Great Lakes Research (44) 1100-1109
Basin-scale assessment of fish habitat in Great Lakes coastal ecosystems would increase our ability to prioritize fish habitat management and restoration actions. As a first step in this direction, we identified key habitat factors associated with highest probability of occurrence for several societally and ecologically important coastal fish species as well as community metrics,...
