The Polar WRF downscaled historical and projected twenty-first century climate for the coast and foothills of Arctic Alaska
Lei Cai, Vladimir A Alexeev, Christopher D. Arp, Benjamin M. Jones, Anna K. Liljedahl, Anne Gadeke
2018, Frontiers in Earth Science: Atmospheric Science (5)
Climate change is most pronounced in the northern high latitude region. Yet, climate observations are unable to fully capture regional-scale dynamics due to the sparse weather station coverage, which limits our ability to make reliable climate-based assessments. A set of simulated data products was therefore developed for the North Slope...
Managing individual nests promotes population recovery of a top predator
Jennyffer Cruz, Steve K. Windels, Wayne E. Thogmartin, Shawn M. Crimmins, Leland Grim, Benjamin Zuckerberg
2018, Journal of Applied Ecology (55) 1418-1429
Threatened species are managed using diverse conservation tactics implemented at multiple scales ranging from protecting individuals, to populations, to entire species. Individual protection strives to promote recovery at the population‐ or species‐level, although this is seldom evaluated.After decades of widespread declines, bald eagles, Haliaeetus leucocephalus, are recovering throughout their range...
Description of the National Hydrologic Model for use with the Precipitation-Runoff Modeling System (PRMS)
R. Steven Regan, Steven L. Markstrom, Lauren E. Hay, Roland J. Viger, Parker A. Norton, Jessica M. Driscoll, Jacob H. LaFontaine
2018, Techniques and Methods 6-B9
This report documents several components of the U.S. Geological Survey National Hydrologic Model of the conterminous United States for use with the Precipitation-Runoff Modeling System (PRMS). It provides descriptions of the (1) National Hydrologic Model, (2) Geospatial Fabric for National Hydrologic Modeling, (3) PRMS hydrologic simulation code, (4) parameters and...
Changes in biological communities of the Fountain Creek Basin, Colorado, 2003–2016, in relation to antecedent streamflow, water quality, and habitat
James Roberts, James F. Bruce, Robert E. Zuellig
2018, Scientific Investigations Report 2017-5162
The analysis described in this report is part of a longterm project monitoring the biological communities, habitat, and water quality of the Fountain Creek Basin. Biology, habitat, and water-quality data have been collected at 10 sites since 2003. These data include annual samples of aquatic invertebrate communities, fish communities, water...
Use of real-time dust monitoring and surface condition to evaluate success of unpaved road treatments
Bethany K. Kunz, Nicholas S. Green, Janice L. Albers, Mark L. Wildhaber, Edward E. Little
2018, Transportation Research Record (2672) 195-204
Fugitive dust from unpaved roads creates human health hazards, degrades road surfaces, and increases the cost of road maintenance. As a result, many different chemical treatments are applied to unpaved roads in an attempt to control dust and stabilize the wearing course. However, investigations of the effectiveness of these treatments...
Groundwater quality in the shallow aquifers of the Madera–Chowchilla and Kings subbasins, San Joaquin Valley, California
Miranda S. Fram, Jennifer L. Shelton
2018, Open-File Report 2017-1162
Groundwater provides more than 40 percent of California’s drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The GAMA Program’s Priority Basin Project assesses the quality of groundwater resources used for drinking-water supply and increases public access to groundwater-quality...
River otter distribution in Nebraska
N. R. Bieber, S. P. Wilson, Craig R. Allen
2018, Wildlife Society Bulletin (42) 136-143
The river otter (Lontra canadensis) was extirpated from Nebraska, USA, in the early 1900s and reintroduced starting in 1986. Information is needed regarding the distribution of river otters in Nebraska before decisions can be made regarding its conservation status. Understanding distribution of a species is critically important for effective management....
River otter distribution in Nebraska
N.R. Bieber, S.P. Wilson, Craig R. Allen
2018, Wildlife Society Bulletin (42) 136-143
The river otter (Lontra canadensis) was extirpated from Nebraska, USA, in the early 1900s and reintroduced starting in 1986. Information is needed regarding the distribution of river otters in Nebraska before decisions can be made regarding its conservation status. Understanding distribution of a species is critically important for effective management....
Simulation of hydrodynamics, water quality, and lake sturgeon habitat volumes in Lake St. Croix, Wisconsin and Minnesota, 2013
Erik A. Smith, Richard L. Kiesling, Jeffrey R. Ziegeweid, Sarah M. Elliott, Suzanne Magdalene
2018, Scientific Investigations Report 2017-5157
Lake St. Croix is a naturally impounded, riverine lake that makes up the last 40 kilometers of the St. Croix River. Substantial land-use changes during the past 150 years, including increased agriculture and urban development, have reduced Lake St. Croix water-quality and increased nutrient loads delivered to Lake St. Croix....
Crevice-nesting auklets are early-successional species requiring disturbance to persist
Heather M. Renner, Lawrence R Walker, Christopher F. Waythomas, Jeffrey C. Williams, Yuri Artkhin
2018, Arctic, Antarctic, and Alpine Research (49) 585-599
Auklets (Aethia spp.) are small seabirds, endemic to the North Pacific Ocean, that nest in rock crevices on islands in Alaska and Russia. Nesting habitats for least (A. pusilla) and crested (A. cristatella) auklet colonies in the southern part of their range (Aleutian and Kuril Islands) are becoming overgrown...
Chemical concentrations in water and suspended sediment, Green River to Lower Duwamish Waterway near Seattle, Washington, 2016–17
Kathleen E. Conn, Robert W. Black, Norman T. Peterson, Craig A. Senter, Elena A. Chapman
2018, Data Series 1073
From August 2016 to March 2017, the U.S. Geological Survey (USGS) collected representative samples of filtered and unfiltered water and suspended sediment (including the colloidal fraction) at USGS streamgage 12113390 (Duwamish River at Golf Course, at Tukwila, Washington) during 13 periods of differing flow conditions. Samples were analyzed by...
Extreme-event geoelectric hazard maps: Chapter 9
Jeffrey J. Love, Paul A. Bedrosian
2018, Book chapter, Extreme events in geospace
Maps of geoelectric amplitude covering about half the continental United States are presented that will be exceeded, on average, once per century in response to an extreme-intensity geomagnetic disturbance. These maps are constructed using an empirical parameterization of induction: convolving latitude-dependent statistical maps of extreme-value geomagnetic disturbances, obtained from decades...
Effects of watershed and in-stream liming on macroinvertebrate communities in acidified tributaries to an Adirondack lake
Scott D. George, Barry P. Baldigo, Gregory B. Lawrence, Randall L. Fuller
2018, Ecological Indicators (85) 1058-1067
Liming techniques are being explored as a means to accelerate the recovery of aquatic biota from decades of acid deposition in many regions. The preservation or restoration of native sportfish populations has typically been the impetus for liming programs, and as such, less attention has been given to its effects...
Nutrient dynamics in partially drained arctic thaw lakes
Joshua C. Koch, Tom F. Fondell, Joel A. Schmutz, Sarah M. Laske
2018, Journal of Geophysical Research: Biogeosciences (123) 440-452
Thaw lakes are ubiquitous on arctic coastal plains (ACPs). While many thaw lakes have steep banks, stable water levels, and static surface areas, others only partially fill their basins and vary in area over the summer. These partially drained lakes (PDLs) are hydrologically connected to the wetlands immediately surrounding them....
Effects of sea lamprey substrate modification and carcass nutrients on macroinvertebrate assemblages in a small Atlantic coastal stream
Daniel M. Weaver, Stephen M. Coghlan Jr., Joseph D. Zydlewski
2018, Journal of Freshwater Ecology (33) 19-30
Aquatic macroinvertebrates respond to patch dynamics arising from interactions of physical and chemical disturbances across space and time. Anadromous fish, such as sea lamprey, Petromyzon marinus, migrate from the ocean and alter physical and chemical properties of recipient spawning streams. Sea lamprey disturb stream benthos physically through nest construction and spawning,...
Mapping forest change using stacked generalization: An ensemble approach
Sean P. Healey, Warren B. Cohen, Zhiqiang Yang, C. Kenneth Brewer, Evan B. Brooks, Noel Gorelick, Alexander J. Hernandez, Chengquan Huang, M. Joseph Hughes, Robert E. Kennedy, Thomas Loveland, Gretchen G. Moisen, Todd A. Schroeder, Stephen V. Stehman, James Vogelmann, Curtis E. Woodcock, Limin Yang, Zhe Zhu
2018, Remote Sensing of Environment (204) 717-728
The ever-increasing volume and accessibility of remote sensing data has spawned many alternative approaches for mapping important environmental features and processes. For example, there are several viable but highly varied strategies for using time series of Landsat imagery to detect changes in forest cover. Performance among algorithms varies across complex natural systems, and it...
Effects of environmental conditions on reproductive effort and nest success of Arctic‐breeding shorebirds
Emily L. Weiser, Stephen C. Brown, Richard B. Lanctot, H. River Gates, Kenneth F. Abraham, Rebecca L. Bentzen, Joel Bety, Megan L. Boldenow, Rodney W. Brook, Tyrone F. Donnelly, Willow B. English, Scott A. Flemming, Samantha E. Franks, H. Grant Gilchrist, Marie-Andree Giroux, Andrew C. Johnson, Steve Kendall, Lisa V. Kennedy, Laura Koloski, Eunbi Kwon, Jean-Francois Lamarre, David B. Lank, Christopher J. Latty, Nicolas Lecomte, Joseph R. Liebezeit, Laura McKinnon, Erica Nol, Johanna Perz, Jennie Rausch, Martin D. Robards, Sarah T. Saalfeld, Nathan R. Senner, Paul A. Smith, Mikhail Soloviev, Diana V. Solovyeva, David H. Ward, Paul F. Wood, Brett K. Sandercock
2018, Ibis (160) 608-623
The Arctic is experiencing rapidly warming conditions, increasing predator abundance, and diminishing population cycles of keystone species such as lemmings. However, it is still not known how many Arctic animals will respond to a changing climate with altered trophic interactions. We studied clutch size, incubation duration and nest survival of...
Comparison of time nonlocal transport models for characterizing non-Fickian transport: From mathematical interpretation to laboratory application
Bingqing Lu, Yong Zhang, Chunmiao Zheng, Christopher T. Green, Charles O’Neill, Hong-Guang Sun, Jiazhong Qian
2018, Water (10) 1-28
Non-Fickian diffusion has been increasingly documented in hydrology and modeled by promising time nonlocal transport models. While previous studies showed that most of the time nonlocal models are identical with correlated parameters, fundamental challenges remain in real-world applications regarding model selection and parameter definition. This study compared three popular time...
Photographs of wading bird depredation events to monitor invasion extent of Asian Swamp Eel (Monopterus albus)
Andrew T. Taylor, James M. Long, H. von Scmeling
2018, Southeastern Naturalist (17) N72-N76
Several anecdotes exist of wading birds depredating invasive Monopterus albus (Asian Swamp Eel) in waterways of the conterminous US. We present photographic evidence of 4 different wading bird species depredating adult Asian Swamp Eels in Georgia and Florida herein. Photographs taken by wildlife enthusiasts could provide a means for early...
High resolution water body mapping for SWAT evaporative modelling in the Upper Oconee watershed of Georgia, USA
Amber R. Ignatius, John Jones
2018, Hydrological Processes (32) 51-65
Technological improvements in remote sensing and geographic information systems have demonstrated the abundance of artificially constructed water bodies across the landscape. Although research has shown the ubiquity of small ponds globally, and in the southeastern United States in particular, their cumulative impact in terms of evaporative alteration is less well...
Advancements in hydrochemistry mapping: methods and application to groundwater arsenic and iron concentrations in Varanasi, Uttar Pradesh, India
Ricardo A. Olea, N. Janardhana Raju, Juan J. Egozcue, Vera Pawlowsky-Glahn, Shubhra Singh
2018, Stochastic Environmental Research and Risk Assessment (32) 241-259
The area east of Varanasi is one of numerous places along the watershed of the Ganges River with groundwater concentrations of arsenic surpassing the maximum value of 10 parts per billion (ppb) recommended by the World Health Organization in drinking water. Here we apply geostatistics and compositional data analysis for...
Characterizing aquatic habitats for long‐term monitoring of a fourth‐order, regulated river in the Pacific Northwest, USA
Christopher P. Konrad, K. Burton, R. Little, Andrew S. Gendaszek, Mark D. Munn, Scott W. Anderson
2018, River Research and Applications (34) 24-33
A pragmatic approach to the long‐term monitoring of rivers leverages available information with targeted field investigations to address key uncertainties relevant to management decisions. An over‐arching management issue for many rivers is how reservoir operation affects the amount and location of in‐channel sediment and the resulting distribution of aquatic habitats....
Barataria and Terrebonne Bays: Chapter F in Emergent wetlands status and trends in the northern Gulf of Mexico: 1950-2010
Lawrence Handley, Kathryn A. Spear, Mirka Zapletal, Cindy A. Thatcher, William R. Jones, Scott A. Wilson
2018, Report, Emergent Wetlands Status and Trends in the Northern Gulf of Mexico: 1950-2010 report
The study area included in the Barataria and Terrebonne Bays vignette of southeastern Louisiana spans eastward from Terrebonne Bay to Barataria Bay (Figure 1) and includes portions of Terrebonne, Lafourche, St. Charles, Jefferson, Orleans, Plaquemines, and St. Bernard Parishes. This area falls between the Mississippi River on the east and northeast, extends down through...
Resilience in environmental risk and impact assessment: Concepts and measurement
David G. Angeler, Craig R. Allen, Ahjond S. Garmestani, Kevin L. Pope, Dirac Twidwell, Mirco Bundschuh
2018, Bulletin of Environmental Contamination and Toxicology (101) 543-548
Different resilience concepts have different assumptions about system dynamics, which has implications for resilience-based environmental risk and impact assessment. Engineering resilience (recovery) dominates in the risk assessment literature but this definition does not account for the possibility of ecosystems to exist in multiple regimes. In this paper we discuss resilience...
Dietary bioprocessed soybean meal does not affect the growth of exercised juvenile rainbow trout (Oncorhynchus mykiss)
Jill M. Voorhees, Michael Barnes, Steven R. Chipps, Michael Browne
2018, Journal of Animal Research and Nutrition (3) 1-13
Context: This 88-day experiment evaluated the rearing performance of juvenile rainbow trout (Oncorhynchus mykiss) fed one of three isonitrogenous and isocaloric diets and reared at velocities of either 2.3 or 18.7 cm s-1.Objective: Evaluate the effects of diet and exercise during rainbow trout rearing.Design: Fishmeal was the primary protein source...
