Mammals of the Smokies
Edward Pivorun, M. J. Harvey, F.T. Van Manen, M.R. Pelton, J. D. Clark, E. Kim Delozier, B. Stiver
Steve Kemp, Kent Cave, editor(s)
2009, Book
Guide to the most popular and famous critters in the Great Smoky Mountains National Park. Includes bear, elk, deer, flying squirrels, and buffalo....
Atlantic salmon (Salmo salar) smolt production: the relative importance of survival and body growth
G.E. Horton, B. H. Letcher, M.M. Bailey, M.T. Kinnison
2009, Canadian Journal of Fisheries and Aquatic Sciences (66) 471-483
The complex life history of Atlantic salmon (Salmo salar) coupled with interacting abiotic and biotic factors leads to extreme demographic variability across the species' range. Our goal was to evaluate the relative importance of survival and body growth in determining smolt production across space and time. We used passive integrated...
Coldwater fish in wadeable streams
Jason B. Dunham, Amanda E. Rosenberger, Russell F. Thurow, C. Andrew Dolloff, Philip J. Howell
Scott A. Bonar, Wayne A. Hubert, David W. Willis, editor(s)
2009, Book chapter, Standard methods for sampling North American freshwater fishes
Standardizing sampling methods for fish populations across large regions is important for consistent measurement of large-scale effects of climate or geography. In addition, pooling samples creates larger sample sizes and can facilitate data sharing among scientists and land managers. Sampling freshwater fish has largely not been standardized due to the...
Gene-expression signatures of Atlantic salmon's plastic life cycle
N. Aubin-Horth, B. H. Letcher, H.A. Hofmann
2009, General and Comparative Endocrinology (163) 278-284
How genomic expression differs as a function of life history variation is largely unknown. Atlantic salmon exhibits extreme alternative life histories. We defined the gene-expression signatures of wild-caught salmon at two different life stages by comparing the brain expression profiles of mature sneaker males and immature males, and early migrants...
Detection and attribution of streamflow timing changes to climate change in the Western United States
H.G. Hidalgo, T. Das, M. D. Dettinger, D.R. Cayan, D.W. Pierce, T.P. Barnett, G. Bala, A. Mirin, A.W. Wood, Celine Bonfils, B.D. Santer, T. Nozawa
2009, Journal of Climate (22) 3838-3855
This article applies formal detection and attribution techniques to investigate the nature of observed shifts in the timing of streamflow in the western United States. Previous studies have shown that the snow hydrology of the western United States has changed in the second half of the twentieth century. Such changes...
Social, political, and institutional setting: Water management problems of the Rio Grande
A. J. Douglas
2009, Journal of Water Resources Planning and Management (135) 493-501
This paper discusses various water management issues facing federal, state, and local agencies charged with managing the water resources of the Rio Grande River Basin and its major tributaries. The Rio Grande - 3,058 km (=1,900 mi) long - is the fourth longest river in the United States. The river's...
Evaluation of procedures for prediction of unconventional gas in the presence of geologic trends
E. D. Attanasi, T.C. Coburn
2009, Natural Resources Research (18) 153-171
This study extends the application of local spatial nonparametric prediction models to the estimation of recoverable gas volumes in continuous-type gas plays to regimes where there is a single geologic trend. A transformation is presented, originally proposed by Tomczak, that offsets the distortions caused by the trend. This article reports...
Assessing reservoir operations risk under climate change
L.D. Brekke, E.P. Maurer, J.D. Anderson, M. D. Dettinger, E.S. Townsley, A. Harrison, T. Pruitt
2009, Water Resources Research (45)
Risk-based planning offers a robust way to identify strategies that permit adaptive water resources management under climate change. This paper presents a flexible methodology for conducting climate change risk assessments involving reservoir operations. Decision makers can apply this methodology to their systems by selecting future periods and risk metrics relevant...
Coldwater fish in small standing waters
Nigel P. Lester, Paul E. Bailey, Wayne A. Hubert
Scott A. Bonar, Wayne A. Hubert, David W. Willis, editor(s)
2009, Book chapter, Standard methods for sampling North American freshwater fishes
This chapter describes standard techniques for sampling coldwater fishes in small standing waters. Within the context of this book, coldwater fish species are those that prefer water temperatures less than 15°C, and small standing waters are lakes and reservoirs where surface area is less than 200 ha. Chapter 7 of...
Status and trends of the Lake Huron deepwater demersal fish ommunity, 2008
Edward F. Roseman, Timothy P. O’Brien, Stephen C. Riley, Steven A. Farha, John R. French
2009, Conference Paper
The U.S.Geological Survey Great Lakes Science Center has conducted trawl surveys to assess annual changes in the deepwater demersal fish community of Lake Huron since 1973. Since 1992, surveys have been carried out using a 21 m wing trawl towed on-contour at depths ranging from 9 to 110 m on...
Osprey: Worldwide sentinel species for assessing and monitoring environmental contamination in rivers, lakes, reservoirs, and estuaries
Robert A. Grove, Charles J. Henny, James L. Kaiser
2009, Journal of Toxicology and Environmental Health, Part B: Critical Reviews (12) 25-44
In the United States, many fish and wildlife species have been used nationwide to monitor environmental contaminant exposure and effects, including carcasses of the bald eagle (Haliaeetus leucocephalus), the only top avian predator regularly used in the past. Unfortunately, bald eagles are sensitive to investigator intrusion at the nest. Thus,...
Wide-area estimates of saltcedar (Tamarix spp.) evapotranspiration on the lower Colorado River measured by heat balance and remote sensing methods
Pamela L. Nagler, Kiyomi Morino, Kamel Didan, J. Erker, John Osterberg, Kevin R. Hultine, Edward P. Glenn
2009, Ecohydrology (2) 18-33
In many places along the lower Colorado River, saltcedar (Tamarix spp) has replaced the native shrubs and trees, including arrowweed, mesquite, cottonwood and willows. Some have advocated that by removing saltcedar, we could save water and create environments more favourable to these native species. To test these assumptions we compared sap...
Mapping and monitoring Mt. Graham Red Squirrel habitat with GIS and thematic mapper imagery
James R. Hatten, John L. Koprowski
H. Reed Sanderson, John L. Koprowski, editor(s)
2009, Book chapter, The Last Refuge of the Mt. Graham Red Squirrel
To estimate the Mt. Graham red squirrel (MGRS) population, personnel visit a proportion of middens each year to determine their occupancy (Snow in this vol.). The method results in very tight confidence intervals (high precision), but the accuracy of the population estimate is dependent upon knowing where all the middens...
A Miocene to Pleistocene climate and elevation record of the Sierra Nevada (California)
A. Mulch, Andrei M. Sarna-Wojcicki, M. E. Perkins, C. P. Chamberlain
2009, PNAS (105) 6819-6824
Orographic precipitation of Pacific-sourced moisture creates a rain shadow across the central part of the Sierra Nevada (California) that contrasts with the southern part of the range, where seasonal monsoonal precipitation sourced to the south obscures this rain shadow effect. Orographic rainout systematically lowers the hydrogen isotope composition of precipitation...
Analysis of vegetation changes in Rock Creek Park, 1991-2007
Jeff S. Hatfield, Cairn Krafft
2009, Natural Resource Technical Report NPS/NCR/NCRO/NRTR--2009/001
Vegetation data collected at Rock Creek Park every 4 years during 1991-2007 were analyzed for differences among 3 regions within the park and among years. The variables measured and analyzed were percentage of twigs browsed, percentage of canopy cover, species richness of herbaceous plants, number of tree seedlings in each...
Effects of urbanization on the chemical, physical, and biological characteristics of small Blackland Prairie streams in and near the Dallas-Fort Worth metropolitan area, Texas
J. Bruce Moring
2009, Scientific Investigations Report 2006-5101-C
In 2001, the U.S. Geological Survey National Water Quality Assessment Program began a series of studies in the contiguous United States to examine the effects of urbanization on the chemical, physical, and biological characteristics of streams. Small streams in the Texas Blackland Prairie level III ecoregion in and near the...
Bedrock geology of the Montpelier area, central Vermont
Gregory J. Walsh, Jonathan Kim, Marjorie H. Gale
2009, Conference Paper, Guidebook to the northeast kingdom, Vermont and surrounding regions
No abstract available....
Selenium Recycling in the United States in 2004
Micheal W. George, Lorie A. Wagner
2009, Circular 1196-T
The vast majority of selenium consumption in the United States is in dissipative uses, such as alloys, animal feeds, fertilizers, glass decolorizer, and pigments. The nondissipative use as a photoreceptor for xerographic copiers is declining. As a result of a lack of a substantial supply of selenium-containing scrap, there are...
Coastal-Change and Glaciological Map of the Palmer Land Area, Antarctica: 1947-2009
Jane G. Ferrigno, Alison J. Cook, Amy M. Mathie, Richard S. Williams Jr., Charles Swithinbank, Kevin M. Foley, Adrian J. Fox, Janet W. Thomson, Jorn Sievers
2009, IMAP 2600-C
Reduction in the area and volume of the two polar ice sheets is intricately linked to changes in global climate, and the resulting rise in sea level could severely impact the densely populated coastal regions on Earth. Antarctica is Earth's largest reservoir of glacial ice. Melting of the West Antarctic...
Alaska resource data file, new and revised records version 1.7
U.S. Geological Survey
2008, Open-File Report 2008-1225
No abstract available....
Mycobacteriosis in striped bass
Frank Panek
2008, Report
Mycobacteriosis is a bacterial disease in which striped bass (rockfish) may be disfigured as a result of skin ulcers and internal lesions. The bass may also be skinny or in extremely poor condition due to the chronic nature of this wasting disease. Stripers are a highly prized target species for...
Infectious salmon anemia virus
Frank Panek
2008, Report
The occurrence of infectious salmon anemia virus in Atlantic salmon populations in the Northeast may threaten interagency recovery efforts for this endangered species....
Fish passage research: S.O. Conte Anadromous Fish Research Laboratory
Steve Garebedian
2008, Report
The Leetown Science Center’s S.O. Conte Anadromous Fish Research Laboratory conducts basic and applied scientific studies of fish passage and migration to define underlying principles and relationships of fish behavior and hydraulics, and to develop integrated, predictive research that can be applied to a wide range of fish passage problems....
Disease of coral and coral reef fishes
Frank Panek
2008, Fact Sheet 2008
The Department of the Interior protects sensitive habitats amounting to about 3,600,000 acres of coral reefs and other submerged lands. These reefs are important ecosystems in 13 National Wildlife Refuges, 10 National Parks and in certain territorial waters such as the Wake Atoll....
Fisheries and aquatic resources—fish health
Frank Panek
2008, Report
Fish health research at Leetown had its origin in the 1930’s when the Leetown Fish Hatchery and Experiment Station was constructed. In 1978, the National Fish Health Research Laboratory, now a component of the Leetown Science Center, was established to solve emerging and known disease problems affecting fish and other...
