Estimating the impacts of reservoir elevation changes on kokanee emergence in Flaming Gorge Reservoir, Wyoming-Utah
T. Modde, R.J. Jeric, W.A. Hubert, R.D. Gipson
2011, North American Journal of Fisheries Management (17) 470-473
Flaming Gorge Reservoir, like many western North American reservoirs, is managed to release water during the winter months to allow for water storage associated with melting snow and rain during spring. Decreases in reservoir elevation during winter can cause mortalities of kokanee Oncorhynchus nerka spawned along the shoreline the previous fall. This...
Passage and behavior of adult American shad in an experimental louver bypass system
B. Kynard, C. Buerkett
2011, North American Journal of Fisheries Management (17) 734-742
We tested 436 adult American shad Alosa sapidissima in an experimental louver bypass system, which was similar to a system operating at Holyoke Dam, Massachusetts, to determine guidance and passage efficiency and to study fish response to stimuli from physical structures, light intensity, and water velocity. Groups of 5–29 fish were exposed...
Thermal marking of Atlantic salmon otoliths
B. H. Letcher, T.D. Terrick
2011, North American Journal of Fisheries Management (18) 406-410
By exposing fry of Atlantic salmon Salmo salar to various temperature regimes, we determined conditions required to produce a readable thermal otolith mark. Marks were quantified by using a darkness index that represented the number of times darker the mark was than the background. Minimum requirements for a strong mark were 1...
The effects of wetland restoration on mercury bioaccumulation in the South Bay Salt Pond Restoration Project: Using the biosentinel toolbox to monitor changes across multiple habitats and spatial scales
Joshua T. Ackerman, Mark Marvin-DiPasquale, Darell Slotton, Mark P. Herzog, Collin A. Eagles-Smith
2011, Report, 2010 Annual Report to the Resources Legacy Fund, State Coastal Conservancy, and South Bay Salt Ponds Restoration Program
The project was initiated in April 2010, and to date has included four sampling events of surface water (April, May, June/July, and August 2010) and five sampling events of biota (April, May, June/July, August, and September 2010) and three sampling events for surface...
Modeling the fate and transport of polyaromatic hydrocarbons in the saturated zone, Grand Isle, Louisiana
Francis H. Chapelle, Mark A. Widdowson
2011, Report, Summary report for fate and effects of remnant oil remaining in the beach environment
No abstract available....
Seasonal Flux and Assemblage Composition of Planktic Foraminifera from the Northern Gulf of Mexico, 2008-2009
Jessica W. Spear, Richard Z. Poore
2011, Open-File Report 2011-1002
The U.S. Geological Survey established a sediment trap in the northern Gulf of Mexico to collect time-series data on the flux and assemblage composition of live planktic foraminifers. This report provides an update of the 2008 time-series data to include results from 2009. Ten species, or varieties, of planktic foraminifers...
Meat and bone meal and mineral feed additives may increase the risk of oral prion disease transmission
Christopher J. Johnson, Debbie McKenzie, Joel A. Pedersen, Judd M. Aiken
2011, Journal of Toxicology and Environmental Health, Part A (74) 161-166
Ingestion of prion-contaminated materials is postulated to be a primary route of prion disease transmission. Binding of prions to soil (micro)particles dramatically enhances peroral disease transmission relative to unbound prions, and it was hypothesized that micrometer-sized particles present in other consumed materials may affect prion disease transmission via the oral...
Aftershock distribution as a constraint on the geodetic model of coseismic slip for the 2004 Parkfield earthquake
Ninfa Bennington, Clifford Thurber, Kurt Feigl, Murray-Moraleda Jessica
2011, Pure and Applied Geophysics (168) 1553-1565
Several studies of the 2004 Parkfield earthquake have linked the spatial distribution of the event’s aftershocks to the mainshock slip distribution on the fault. Using geodetic data, we find a model of coseismic slip for the 2004 Parkfield earthquake with the constraint that the edges of coseismic slip patches align...
Quantifying solute transport processes: Are chemically "conservative" tracers electrically conservative?
Kamini Singha, Li Li, Frederick D. Day-Lewis, Aaron B. Regberg
2011, Geophysics (76) F53-F63
The concept of a nonreactive or conservative tracer, commonly invoked in investigations of solute transport, requires additional study in the context of electrical geophysical monitoring. Tracers that are commonly considered conservative may undergo reactive processes, such as ion exchange, thus changing the aqueous composition of the system. As a result,...
Host specificity and ecology of infectious hematopoietic necrosis virus (IHNV) in Pacific salmonids
Gael Kurath, A. K. Garver K., M. K. Purcell, Ma. Penaranda Michelle, Svetlana Rudakova Svetlana
R. C. Cipriano, A.W. Bruckner, I.S. Shchelkunov, editor(s)
2011, Conference Paper, Bridging America and Russia with shared perspectives on aquatic animal health: Proceedings of the Third Bilateral Conference between Russia and the United States
Some circumstances IHNV infection can cause acute disease with mortality ranging from 5-90% in host populations. Genetic typing of IHNV field isolates has shown that three major genetic groups of the virus occur in North America. These groups are designated the U, M, and L virus genogroups because they occur...
Chapter 9: Occurrence of small mammals: Deer mice and challenge of trapping across large spatial extents
Steven E. Hanser, Matthias Leu, Cameron L. Aldridge, Scott E. Nielsen, Steven T. Knick
2011, Book chapter, Sagebrush ecosystem conservation and management: Ecoregional assessment tools and models for the Wyoming Basins
Small mammal communities living in sagebrush (Artemisia spp.) may be sensitive to habitat isolation and invasion by exotic grass species. Yet there have been no spatially explicit models to improve our understanding of landscape-scale factors determining small mammal occurrence or abundance. We live-trapped small mammals at 186 locations in the...
Chapter 10: Occurrence of non-native invasive plants: The role of anthropogenic features
Scott E. Nielsen, Cameron L. Aldridge, Steven E. Hanser, Matthias Leu, Steven T. Knick
2011, Book chapter, Sagebrush ecosystem conservation and management: Ecoregional assessment tools and models for the Wyoming Basins
The invasion of non-native plants in the Wyoming Basins Ecoregional Assessment (WBEA) area is a major economic and ecological stress, with invasions thought to be hastened by energy developments. Given the potential impacts of nonnative invasive plants and the rapid changes in land use in the WBEA, broad-scale assessments and...
A westward extension of the warm pool leads to a westward extension of the Walker circulation, drying eastern Africa
A. Park Williams, Christopher C. Funk
2011, Climate Dynamics (37) 2417-2435
Observations and simulations link anthropogenic greenhouse and aerosol emissions with rapidly increasing Indian Ocean sea surface temperatures (SSTs). Over the past 60 years, the Indian Ocean warmed two to three times faster than the central tropical Pacific, extending the tropical warm pool to the west by ~40° longitude (>4,000 km). This propensity...
Chapter 11: Management considerations
Steven T. Knick, Steven E. Hanser, Matthias Leu, Cameron L. Aldridge, Scott E. Nielsen, Mary M. Rowland, Sean P. Finn, Michael J. Wisdom
2011, Book chapter, Sagebrush ecosystem conservation and management: Ecoregional assessment tools and models for the Wyoming Basins
We conducted an ecoregional assessment of sagebrush (Artemisia spp.) ecosystems in the Wyoming Basins and surrounding regions (WBEA) to determine broad-scale species-environmental relationships. Our goal was to assess the potential influence from threats to the sagebrush ecosystem on associated wildlife through the use of spatially explicit occurrence and abundance models....
Book review: The Tallgrass Prairie Center guide to seed and seedling identification in the Upper Midwest
Diane L. Larson, Susan M. Galatowitsch
2011, Prairie Naturalist (43)
This attractive, slim volume provides a wonderful introduction to a neglected aspect of prairie plant identification: seeds and seedlings. Williams, and the illustrator Brent Butler, take the mystery out of dichotomous keys with clear descriptions, vivid illustrations, and abundant photographs of characteristics that distinguish common, tallgrass prairie, seedlings. A botanical...
Portrait of a small population of boreal toads (Anaxyrus boreas)
Erin Muths, Rick D. Scherer
2011, Herpetologica (67) 369-377
Much attention has been given to the conservation of small populations, those that are small because of decline, and those that are naturally small. Small populations are of particular interest because ecological theory suggests that they are vulnerable to the deleterious effects of environmental, demographic, and genetic stochasticity as well...
Monitoring behaviors and activity of bats at wind turbines with near infrared videography
Paul M. Cryan, P. M. Gorresen, F.J. Bonaccorso, M. A. Hayes
2011, Conference Paper, 41st Annual meeting of the North American Society for Bat Research
No abstract available....
A new species of Perlesta (Plecoptera: Perlidae) from North Carolina with additional records for North Carolina and Virginia
B.C. Kondratieff, R.E. Zuellig, D. R. Lenat
2011, Illiesia (7) 297-301
Twenty-eight species of Nearctic Perlesta are currently recognized (Stark 1989, 2004; Kondratieff et al. 2006, 2008; Grubbs and DeWalt 2008, Grubbs and DeWalt 2011, Kondratieff and Myers 2011). Interestingly, but needing confirmation, Perlesta has been recently recorded from Central America (Gutiérrez-Fonseca and Springer 2011). Continued collecting and study of Perlesta...
Contaminants limit ecosystem potential, not average potential of ecosystems
Travis S. Schmidt, W.H. Clements, Brian S. Cade
2011, Conference Paper, Rocky Mountain Society of Environmental Toxicology and Chemistry
No abstract available....
Integrating field observations and inverse and forward modeling: application at a site with acidic, heavy-metal-contaminated groundwater
Pierre D. Glynn, James G. Brown
2011, Book chapter, Geochemical modeling of groundwater: vadose and geothermal systems
Transfer of trace metals from streams to terrestrial food webs by emerging aquatic insects in mineralized alpine ecosystems
Johanna M. Kraus, R. B. Wanty, Travis S. Schmidt, David M. Walters, Craig A. Stricker
2011, Conference Paper, Rocky Mountain Society of Environmental Toxicology and Chemistry
No abstract available....
Allelopathic cover crop prior to seeding is more important than subsequent grazing/mowing in grassland establishment
Daniel G. Milchunas, Mark W. Vandever, Leonard O. Ball, Skip Hyberg
2011, Rangeland Ecology and Management (64) 291-300
The effects of grazing, mowing, and type of cover crop were evaluated in a previous winter wheat–fallow cropland seeded to grassland under the Conservation Reserve Program in eastern Colorado. Prior to seeding, the fallow strips were planted to forage sorghum or wheat in alternating strips (cover crops), with no grazing,...
Quantitative polymerase chain reaction (PCR) for detection of aquatic animal pathogens in a diagnostic laboratory setting
Maureen K. Purcell, Rodman G. Getchell, Carol A. McClure, S.E. Weber, Kyle A. Garver
2011, Journal of Aquatic Animal Health (23) 148-161
Real-time, or quantitative, polymerase chain reaction (qPCR) is quickly supplanting other molecular methods for detecting the nucleic acids of human and other animal pathogens owing to the speed and robustness of the technology. As the aquatic animal health community moves toward implementing national diagnostic testing schemes, it will need to...
Pliocene Model Intercomparison Project (PlioMIP): experimental design and boundary conditions (Experiment 2)
A.M. Haywood, Harry J. Dowsett, Marci M. Robinson, Danielle K. Stoll, A.M. Dolan, D.J. Lunt, B. Otto-Bliesner, M.A. Chandler
2011, Geoscientific Model Development (4) 571-577
The Palaeoclimate Modelling Intercomparison Project has expanded to include a model intercomparison for the mid-Pliocene warm period (3.29 to 2.97 million yr ago). This project is referred to as PlioMIP (the Pliocene Model Intercomparison Project). Two experiments have been agreed upon and together compose the initial phase of PlioMIP. The...
Assessment of mangrove forests in the Pacific region using Landsat imagery
Bibek Bhattarai, Chandra Giri
2011, Journal of Applied Remote Sensing (5)
The information on the mangrove forests for the Pacific region is scarce or outdated. A regional assessment based on a consistent methodology and data sources was needed to understand their true extent. Our investigation offers a regionally consistent, high resolution (30 m), and the most comprehensive mapping of mangrove forests...
