Prevalence and effects of West Nile virus on wild American kestrel (Falco sparverius) populations in Colorado
Robert J. Dusek, William M. Iko, Erik K. Hofmeister
Ellen Paul, editor(s)
2012, Book chapter, Emerging avian disease
To assess the potential impacts of West Nile virus (WNV) on a wild population of free-ranging raptors, we investigated the prevalence and effects of WNV on American Kestrels (Falco sparverius) breeding along the Front Range of the Rocky Mountains in northern Colorado. We monitored kestrel nesting activity at 131 nest...
GRACEnet: addressing policy needs through coordinated cross-location research
Michael D. Jawson, Charles W. Walthall, Steven R. Shafer
Mark Liebig, Alan J. Franzluebbers, Ronald F. Follett, editor(s)
2012, Book chapter, Managing agricultural greenhouse gases coordinated agricultural research through GRACEnet to address our changing climate
GRACEnet (Greenhouse gas Reduction through Agricultural Carbon Enhancement network) was conceived to build upon ongoing USDA Agricultural Research Service (ARS) research to improve soil productivity, while addressing the challenges and opportunities of interest in C sequestration from a climate change perspective. The vision for GRACEnet was and remains: Knowledge and...
Simulating future uncertainty to guide the selection of survey designs for long-term monitoring
Steven L. Garman, E. William Schweiger, Daniel J. Manier
Robert A. Gitzen, Joshua J. Millspaugh, Andrew B. Cooper, Daniel S. Licht, editor(s)
2012, Book chapter, Design and analysis of long-term ecological monitoring studies
A goal of environmental monitoring is to provide sound information on the status and trends of natural resources (Messer et al. 1991, Theobald et al. 2007, Fancy et al. 2009). When monitoring observations are acquired by measuring a subset of the population of interest, probability sampling as part of a...
Origin of an unusual monazite-xenotime gneiss, Hudson Highlands, New York: SHRIMP U-Pb geochronology and trace element geochemistry
John N. Aleinikoff, Richard I. Grauch, Frank K. Mazdab, Loretta Kwak, C. Mark Fanning, Sandra L. Kamo
2012, American Journal of Science (312) 723-765
A pod of monazite-xenotime gneiss (MXG) occurs within Mesoproterozoic paragneiss, Hudson Highlands, New York. This outcrop also contains granite of the Crystal Lake pluton, which migmatized the paragneiss. Previously, monazite, xenotime, and zircon from MXG, plus detrital zircon from the paragneiss, and igneous zircon from the granite, were dated...
The role of efflorescent sulfate salts in Indiana’s mine water quality
Jeane Pope, E.R. Bayless, G. Olyphant, T. Branam
John B. Comer, editor(s)
2012, Book chapter, Effects of abandoned mine land reclamation on ground and surface water quality: Research and case histories from Indiana
Efflorescent sulfate salts (ESS), which form from evaporating acid mine drainage and occur in a wide variety of environments, can significantly alter water quality and are, therefore, important considerations for remediation strategies at coal refuse sites. Many ESS, including melanterite, rozenite, siderotil, copiapite, halotrichite, coquimbite, epsomite, potash alum, and gypsum,...
Mercury cycling in terrestrial watersheds
James B. Shanley, Kevin Bishop
Michael S. Banks, editor(s)
2012, Book chapter, Mercury in the environment: Pattern and process
This chapter discusses mercury cycling in the terrestrial landscape, including inputs from the atmosphere, accumulation in soils and vegetation, outputs in streamflow and volatilization, and effects of land disturbance. Mercury mobility in the terrestrial landscape is strongly controlled by organic matter. About 90% of the atmospheric mercury input is retained...
Variance components estimation for continuous and discrete data, with emphasis on cross-classified sampling designs
Brian R. Gray
Robert A. Gitzen, Joshua J. Millspaugh, Andrew B. Cooper, Daniel S. Licht, editor(s)
2012, Book chapter, Design and analysis of long-term ecological monitoring studies
Variance components may play multiple roles (cf. Cox and Solomon 2003). First, magnitudes and relative magnitudes of the variances of random factors may have important scientific and management value in their own right. For example, variation in levels of invasive vegetation among and within lakes may suggest causal agents that...
Pacific salmonines in the Great Lakes Basin
Randall M. Claramunt, Charles P. Madenjian, David Clapp
William W. Taylor, Abigail J. Lynch, Nancy J. Leonard, editor(s)
2012, Book chapter, Great Lakes fisheries policy and management a binational perspective
Pacific salmon (genus Oncorhynchus) are a valuable resource, both within their native range in the North Pacific rim and in the Great Lakes basin. Understanding their value from a biological and economic perspective in the Great Lakes, however, requires an understanding of changes in the ecosystem and of management actions...
Conducting fisheries investigations
Alexander V. Zale, Donna L. Parrish, Trent M. Sutton
2012, Book chapter, Fisheries techniques
No abstract available....
Recent changes in successional state of the deep-water fish communities of Lakes Michigan, Huron, and Ontario and management implications
Randy L. Eshenroder, Brian F. Lantry
William W. Taylor, Abigail J. Lynch, Nancy J. Leonard, editor(s)
2012, Book chapter, Great Lakes fisheries policy and management: A binational perspective
No abstract available....
History of land cover mapping
Thomas R. Loveland
Chandra P. Giri, editor(s)
2012, Book chapter, Remote sensing of land use and land cover: Principles and applications
The historical roots of land-cover mapping reside in the early history of aerial photography and applications spanning forestry, agriculture, urban planning, and water-resources management. Considering this long span of mapping, any attempt to provide an exhaustive treatment of the full history of land-cover mapping will necessarily be incomplete. For that...
Has the magnitude of floods across the USA changed with global CO2 levels?
Robert M. Hirsch, Karen R. Ryberg
2012, Hydrological Sciences Journal (57) 1-9
Statistical relationships between annual floods at 200 long-term (85–127 years of record) streamgauges in the coterminous United States and the global mean carbon dioxide concentration (GMCO2) record are explored. The streamgauge locations are limited to those with little or no regulation or urban development. The coterminous US is divided into...
Methylation of Hg downstream from the Bonanza Hg mine, Oregon
John E. Gray, Mark E. Hines, David P. Krabbenhoft, Bryn Thoms
2012, Applied Geochemistry (27) 106-114
Speciation of Hg and conversion to methyl-Hg were evaluated in stream sediment, stream water, and aquatic snails collected downstream from the Bonanza Hg mine, Oregon. Total production from the Bonanza mine was >1360t of Hg, during mining from the late 1800s to 1960, ranking it as an intermediate sized Hg...
Migrating birds’ use of stopover habitat in the southwestern United States
Janet M. Ruth, R.H. Diehl, R.K. Felix Jr.
2012, The Condor (114) 698-710
In the arid Southwest, migratory birds are known to use riparian stopover habitats; we know less about how migrants use other habitat types during migratory stopover. Using radar data and satellite land-cover data, we determined the habitats with which birds are associated during migration stopover. Bird densities differed significantly by...
Parasite invasion following host reintroduction: a case of Yellowstone’s wolves
Paul C. Cross, Emily S. Almberg, Andrew P. Dobson, Douglas W. Smith, Peter J. Hudson
2012, Philosophical Transactions of the Royal Society B: Biological Sciences (367) 2840-2851
Wildlife reintroductions select or treat individuals for good health with the expectation that these individuals will fare better than infected animals. However, these individuals, new to their environment, may also be particularly susceptible to circulating infections and this may result in high morbidity and mortality, potentially jeopardizing the goals of...
Klamath Basin Restoration Agreement Off-Project Water Program Evapotranspiration Map for October 2006
Water Resources Division, U.S. Geological Survey
2012, Report
Upper Klamath Basin Landsat Image for September 20, 2006: Path 44 Row 31
Daniel T. Snyder
2012, Report
This subset of a Landsat-5 image shows part of the upper Klamath Basin. The original images were obtained from the U.S. Geological Survey Earth Resources Observation and Science Center (EROS). EROS is responsible for archive management and distribution of Landsat data products. The Landsat-5 satellite is part of an ongoing...
Spatial pattern formation of coastal vegetation in response to external gradients and positive feedbacks affecting soil porewater salinity: A model study
J. Jiang, Donald L. DeAngelis, T. J. Smith III, S.Y. Teh, H. L. Koh
2012, Landscape Ecology (27) 109-119
Coastal vegetation of South Florida typically comprises salinity-tolerant mangroves bordering salinity-intolerant hardwood hammocks and fresh water marshes. Two primary ecological factors appear to influence the maintenance of mangrove/hammock ecotones against changes that might occur due to disturbances. One of these is a gradient in one or more environmental factors. The...
Effects of roads on survival of San Clemente Island foxes
N.P. Snow, William F. Andelt, Thomas R. Stanley, J.R. Resnik, L. Munson
2012, Journal of Wildlife Management (76) 243-252
Roads generate a variety of influences on wildlife populations; however, little is known about the effects of roads on endemic wildlife on islands. Specifically, road‐kills of island foxes (Urocyon littoralis) on San Clemente Island (SCI), Channel Islands, California, USA are a concern for resource managers. To determine the effects of...
Microbial reduction of structural iron in interstratified illite-smectite minerals by a sulfate-reducing bacterium
D. Liu, H. Dong, M.E. Bishop, Jiahua Zhang, Hongfang Wang, S. Xie, Shaoming Wang, L. Huang, D. D. Eberl
2012, Geobiology (10) 150-162
Clay minerals are ubiquitous in soils, sediments, and sedimentary rocks and could coexist with sulfate‐reducing bacteria (SRB) in anoxic environments, however, the interactions of clay minerals and SRB are not well understood. The objective of this study was to understand the reduction rate and capacity of structural Fe(III) in dioctahedral...
Genetic diversity and species diversity of stream fishes covary across a land-use gradient
M.J. Blum, M.J. Bagley, D.M. Walters, S.A. Jackson, F.B. Daniel, D.J. Chaloud, Brian S. Cade
2012, Oecologia (168) 83-95
Genetic diversity and species diversity are expected to covary according to area and isolation, but may not always covary with environmental heterogeneity. In this study, we examined how patterns of genetic and species diversity in stream fishes correspond to local and regional environmental conditions. To do so, we compared population...
The hidden cost of wildfires: Economic valuation of health effects of wildfire smoke exposure in Southern California
L.A. Richardson, P.A. Champ, J.B. Loomis
2012, Journal of Forest Economics (18) 14-35
There is a growing concern that human health impacts from exposure to wildfire smoke are ignored in estimates of monetized damages from wildfires. Current research highlights the need for better data collection and analysis of these impacts. Using unique primary data, this paper quantifies the economic cost of health effects...
Upper Klamath Basin Landsat Image for August 19, 2006: Path 44 Row 31
Daniel T. Snyder
2012, Report
This subset of a Landsat-5 image shows part of the upper Klamath Basin. The original images were obtained from the U.S. Geological Survey Earth Resources Observation and Science Center (EROS). EROS is responsible for archive management and distribution of Landsat data products. The Landsat-5 satellite is part of an ongoing...
Recent paleorecords document rising mercury contamination in Lake Tanganyika
Christopher H. Conaway, Peter W. Swarzenski, A.S. Cohen
2012, Applied Geochemistry (27) 352-359
Recent Lake Tanganyika Hg deposition records were derived using 14C and excess 210Pb geochronometers in sediment cores collected from two contrasting depositional environments: the Kalya Platform, located mid-lake and more removed from watershed impacts, and the Nyasanga/Kahama River delta region, located close to the lake’s shoreline north of Kigoma. At the Kalya...
Significance of a 3D Elevation Program to wetland mapping
Gregory I. Snyder, Megan Lang
2012, National Wetlands Newsletter (34) 11-15
The recent National Enhanced Assessment conducted by the U.S. Geology Survey identified billions of dollars in potential annual benefits if a national-scale enhanced elevation data program was implemented. Given the importance of topography to wetlands, wetland mapping could benefit significantly from improved elevation data. ...
