Misapplied survey data and model uncertainty result in incorrect conclusions about the role of predation on alewife population dynamics in Lake Huron: a comment on He et al. (2015)
Stephen C. Riley, Erin S. Dunlop
2016, Canadian Journal of Fisheries and Aquatic Sciences (73) 860-864
Drastic recent and ongoing changes to fish populations and food webs in the Great Lakes have been well-described (Riley et al. 2008; Barbiero et al. 2009; Nalepa et al. 2009; Fahnenstiel et al. 2010;Evans et al. 2011; Gobin et al. 2015), and uncertainty regarding their potential effects on...
Saharan dust nutrients promote Vibrio bloom formation in marine surface waters
Jason R. Westrich, Alina M. Ebling, William M. Landing, Jessica L. Joyner, Keri M. Kemp, Dale W. Griffin, Erin K. Lipp
2016, Proceedings of the National Academy of Sciences of the United States of America (113) 5964-5969
Vibrio is a ubiquitous genus of marine bacteria, typically comprising a small fraction of the total microbial community in surface waters, but capable of becoming a dominant taxon in response to poorly characterized factors. Iron (Fe), often restricted by limited bioavailability and low external supply, is an essential micronutrient that can...
Modeled historical land use and land cover for the conterminous United States
Terry L. Sohl, Ryan R. Reker, Michelle A. Bouchard, Kristi L. Sayler, Jordan Dornbierer, Steve Wika, Robert Quenzer, Aaron M. Friesz
2016, Journal of Land Use Science (11) 476-499
The landscape of the conterminous United States has changed dramatically over the last 200 years, with agricultural land use, urban expansion, forestry, and other anthropogenic activities altering land cover across vast swaths of the country. While land use and land cover (LULC) models have been developed to model potential future...
Age- and season-specific variation in local and long-distance movement behavior of golden eagles
Sharon A. Poessel, Peter H. Bloom, Melissa A. Braham, Todd E. Katzner
2016, European Journal of Wildlife Research (62) 377-393
Animal movements can determine the population dynamics of wildlife. We used telemetry data to provide insight into the causes and consequences of local and long-distance movements of multiple age classes of conservation-reliant golden eagles (Aquila chrysaetos) in the foothills and mountains near Tehachapi, California. We estimated size and habitat-related correlates of...
Selection and quality assessment of Landsat data for the North American forest dynamics forest history maps of the US
Karen Schleeweis, Samuel N. Goward, Chengquan Huang, John L. Dwyer, Jennifer L. Dungan, Mary A. Lindsey, Andrew Michaelis, Khaldoun Rishmawi, Jeffery G. Masek
2016, International Journal of Digital Earth (9) 963-980
Using the NASA Earth Exchange platform, the North American Forest Dynamics (NAFD) project mapped forest history wall-to-wall, annually for the contiguous US (1986–2010) using the Vegetation Change Tracker algorithm. As with any effort to identify real changes in remotely sensed time-series, data gaps, shifts in seasonality, misregistration, inconsistent radiometry and...
Comparison of remote sensing indices for monitoring of desert cienegas
Natalie R. Wilson, Laura M. Norman, Miguel L. Villarreal, Leila Gass, Ron Tiller, Andrew Salywon
2016, Arid Land Research and Management (30) 460-478
This research considers the applicability of different vegetation indices at 30 m resolution for mapping and monitoring desert wetland (cienega) health and spatial extent through time at Cienega Creek in southeastern Arizona, USA. Multiple stressors including the risk of decadal-scale drought, the effects of current and predicted global warming, and continued...
Assessing the relationship between groundwater nitrate and animal feeding operations in Iowa (USA)
Keith W. Zirkle, Bernard T. Nolan, Rena R. Jones, Peter J. Weyer, Mary H. Ward, David C. Wheeler
2016, Science of the Total Environment (566-567) 1062-1068
Nitrate-nitrogen is a common contaminant of drinking water in many agricultural areas of the United States of America (USA). Ingested nitrate from contaminated drinking water has been linked to an increased risk of several cancers, specific birth defects, and other diseases. In this research, we assessed the relationship between animal...
Isotopically constrained lead sources in fugitive dust from unsurfaced roads in the southeast Missouri mining district
Emitt C. Witt III, Michael J. Pribil, John P. Hogan, David Wronkiewicz
2016, Environmental Pollution (216) 450-459
The isotopic composition of lead (Pb) in fugitive dust suspended by a vehicle from 13 unsurfaced roads in Missouri was measured to identify the source of Pb within an established long-term mining area. A three end-member model using 207Pb/206Pb and concentration as tracers resulted in fugitive dust samples plotting in the...
Prospective earthquake forecasts at the Himalayan Front after the 25 April 2015 M 7.8 Gorkha Mainshock
Margaret Segou, Thomas E. Parsons
2016, Seismological Research Letters (87) 816-825
When a major earthquake strikes, the resulting devastation can be compounded or even exceeded by the subsequent cascade of triggered seismicity. As the Nepalese recover from the 25 April 2015 shock, knowledge of what comes next is essential. We calculate the redistribution of crustal stresses and implied earthquake probabilities for...
Effect of electric barrier on passage and physical condition of juvenile and adult rainbow trout
Megan J. Layhee, Adam J. Sepulveda, Amy Shaw, Matthew Smuckall, Kevin Kapperman, Alejandro Reyes
2016, Journal of Fish and Wildlife Management (7) 28-35
Electric barriers can inhibit passage and injure fish. Few data exist on electric barrier parameters that minimize these impacts and on how body size affects susceptibility, especially to nontarget fish species. The goal of this study was to determine electric barrier voltage and pulse-width settings that inhibit passage of larger...
Chemical abrasion-SIMS (CA-SIMS) U-Pb dating of zircon from the late Eocene Caetano caldera, Nevada
Kathryn E. Watts, Matthew A. Coble, Jorge A. Vazquez, Christopher D. Henry, Joseph P. Colgan, David A. John
2016, Chemical Geology (439) 139-151
Zircon geochronology is a critical tool for establishing geologic ages and time scales of processes in the Earth's crust. However, for zircons compromised by open system behavior, achieving robust dates can be difficult. Chemical abrasion (CA) is a routine step prior to thermal ionization mass spectrometry (TIMS) dating of zircon...
Reevaluating geographic variation in life-history traits of a widespread Nearctic amphibian
Jon M. Davenport, Blake R. Hossack
2016, Journal of Zoology (299) 304-310
Animals from cold environments are usually larger than animals from warm environments, which often produce clines in body size. Because variation in body size can lead to trade-offs between growth and reproduction, life-history traits should also vary across climatic gradients. To determine if life-history traits of wood frogs Rana sylvatica vary with...
Macroinvertebrate and diatom metrics as indicators of water-quality conditions in connected depression wetlands in the Mississippi Alluvial Plain
Billy Justus, David Burge, Jennifer Cobb, Travis Marsico, Jennifer Bouldin
2016, Freshwater Science (35) 1049-1061
Methods for assessing wetland conditions must be established so wetlands can be monitored and ecological services can be protected. We evaluated biological indices compiled from macroinvertebrate and diatom metrics developed primarily for streams to assess their ability to indicate water quality in connected depression wetlands. We collected water-quality and biological...
Ground motions at the outermost limits of seismically triggered landslides
Randall W. Jibson, Edwin L. Harp
2016, Bulletin of the Seismological Society of America (106) 708-719
Over the last few decades, we and our colleagues have conducted field investigations in which we mapped the outermost limits of triggered landslides in four earthquakes: 1987 Whittier Narrows, California (M 5.9), 1987 Superstition Hills, California (M 6.5), 1994 Northridge, California (M 6.7), and 2011 Mineral, Virginia (M 5.8). In an additional two earthquakes,...
Collaborations, research, and adaptive management to address nonnative Phragmites australis in the Great Lakes Basin
Kurt P. Kowalski
2016, Fact Sheet 2016-3031
Phragmites australis, also known as common reed, is a native North American wetland grass that has grown in North America for thousands of years. More recently, a nonnative, invasive variety of Phragmites from Eurasia is rapidly invading wetlands across the continental United States and other parts of North America, where...
Distribution of the Sonora Tiger Salamander (Ambystoma mavortium stebbinsi) in Mexico
Blake R. Hossack, Erin L. Muths, James C. Rorabaugh, Julio A. Lemos Espinal, Brent H. Sigafus, Thierry A. Chambert, Gerardo Carreon Arroyo, David Hurtado Felix, Daniel Toyos Martinez, Thomas R. Jones
2016, Herpetological Review (47) 177-180
The Sonoran Tiger Salamander (Ambystoma mavortium stebbinsi Lowe, 1954) was listed as federally endangered in the USA in 1997 (USFWS 1997). In the USA, the distribution of A. mavortium stebbinsi is limited to the San Rafael Valley (approximately 567 km2), between the Sierra San Antonio (called the Patagonia Mountains in...
Manual hierarchical clustering of regional geochemical data using a Bayesian finite mixture model
Karl J. Ellefsen, David Smith
2016, Applied Geochemistry (75) 200-210
Interpretation of regional scale, multivariate geochemical data is aided by a statistical technique called “clustering.” We investigate a particular clustering procedure by applying it to geochemical data collected in the State of Colorado, United States of America. The clustering procedure partitions the field samples for the entire survey area into...
On the sustainability of inland fisheries: Finding a future for the forgotten
Steven J. Cooke, Edward H. Allison, Beard Jr., Robert Arlinghaus, Angela Arthington, Devin Bartley, Ian G. Cowx, Carlos Fuentevilla, Nancy J. Leonard, Kai Lorenzen, Abigail Lynch, Vivian M. Nguyen, So-Jung Youn, William W. Tayor, Robin Welcomme
2016, Ambio (45) 753-764
At present, inland fisheries are not often a national or regional governance priority and as a result, inland capture fisheries are undervalued and largely overlooked. As such they are threatened in both developing and developed countries. Indeed, due to lack of reliable data, inland fisheries have never been part of...
Molecular detection of airborne Coccidioides in Tucson, Arizona
Nancy A. Chow, Dale W. Griffin, Bridget M. Barker, Vladimir N. Loparev, Anastasia P. Litvintseva
2016, Medical Mycology (54) 584-592
Environmental surveillance of the soil-dwelling fungus Coccidioides is essential for the prevention of Valley fever, a disease primarily caused by inhalation of the arthroconidia. Methods for collecting and detectingCoccidioides in soil samples are currently in use by several laboratories; however, a method utilizing current air sampling technologies has not been formally demonstrated for...
Year-round monitoring of contaminants in Neal and Rogers Creeks, Hood River Basin, Oregon, 2011-12, and assessment of risks to salmonids
Whitney B. Temple, Jennifer L. Morace, Elena B. Nilsen, David Alvarez, Kevin Masterson
2016, PLoS ONE (11)
Pesticide presence in streams is a potential threat to Endangered Species Act listed salmonids in the Hood River basin, Oregon, a primarily forested and agricultural basin. Two types of passive samplers, polar organic chemical integrative samplers (POCIS) and semipermeable membrane devices (SPMDs), were simultaneously deployed at four sites in the...
Yellowstone River Compact Commission sixty-fifth annual report, 2016
Seth Davidson
2016, Report
No abstract available....
The new Landsat 8 potential for remote sensing of colored dissolved organic matter (CDOM)
E. Terrence Slonecker, Daniel K. Jones, Brian A. Pellerin
2016, Marine Pollution Bulletin (107) 518-527
Due to a combination of factors, such as a new coastal/aerosol band and improved radiometric sensitivity of the Operational Land Imager aboard Landsat 8, the atmospherically-corrected Surface Reflectance product for Landsat data, and the growing availability of corrected fDOM data from U.S. Geological Survey gaging stations, moderate-resolution remote sensing of...
Effects of pulse and press drying disturbance on benthic stream communities
Dustin T. Lynch, Daniel D. Magoulick
2016, Freshwater Science (35) 998-1009
Natural disturbance is an integral component of most ecosystems and occurs in 3 different forms: pulse, press, and ramp. In lotic ecosystems, seasonal drought is a major form of disturbance, particularly in intermittent headwater streams, which often are reduced to pools that serve as refuges for biota. We used simulated...
Increased water deficit decreases Douglas fir growth throughout western US forests
Christina M Restaino, David L. Peterson, Jeremy S. Littell
2016, Proceedings of the National Academy of Sciences of the United States of America (113) 9557-9562
Changes in tree growth rates can affect tree mortality and forest feedbacks to the global carbon cycle. As air temperature increases, evaporative demand also increases, increasing effective drought in forest ecosystems. Using a spatially comprehensive network of Douglas-fir (Pseudotsuga menziesii) chronologies from 122 locations that experience distinctly different climate in...
Digestive physiology comparisons of aquatic invertebrates in the Upper Mississippi River Basin
Blake W. Sauey, Jon Amberg, Scott T. Cooper, Sandra K. Grunwald, Roger J. Haro, Mark P. Gaikowski
2016, Journal of Freshwater Ecology (31) 303-314
Limited information is available on the composition of digestive enzymes present in unionid mussels and the zebra mussel, Dreissena polymorpha. Available information is nearly exclusive to species used for culture purposes. A commercially available enzyme assay kit was used to examine the effect of habitat within an ecosystem, season, and species...
