The framework of a coastal hazards model: A tool for predicting the impact of severe storms
Patrick L. Barnard, Bill O’Reilly, Maarten van Ormondt, Edwin Elias, Peter Ruggiero, Li H. Erikson, Cheryl Hapke, Brian D. Collins, Robert T. Guza, Peter N. Adams, Julie Thomas
2009, Open-File Report 2009-1073
The U.S. Geological Survey (USGS) Multi-Hazards Demonstration Project in Southern California (Jones and others, 2007) is a five-year project (FY2007-FY2011) integrating multiple USGS research activities with the needs of external partners, such as emergency managers and land-use planners, to produce products and information that can be used to create more...
The Partition Intervalometer: A Programmable Underwater Timer for Marking Accumulated Sediment Profiles Collected in Anderson Sediment Traps: Development, Operation, Testing Procedures, and Field Results
Richard R. Rendigs, Roger Y. Anderson, Jingping Xu, Raymond E. Davis, Emile M. Bergeron
2009, Open-File Report 2009-1101
This manual illustrates the development of a programmable instrument designed to deploy a series of wafer-shaped discs (partitions) into the collection tube of a sediment trap in various aquatic environments. These hydrodynamically shaped discs are deployed at discrete time intervals from the Intervalometer and provide markers that delineate time intervals...
Copper: a metal for the ages
Jeff Doebrich
2009, Fact Sheet 2009-3031
Copper was one of the first metals ever extracted and used by humans, and it has made vital contributions to sustaining and improving society since the dawn of civilization. Copper was first used in coins and ornaments starting about 8000 B.C., and at about 5500 B.C., copper tools helped civilization...
A neotropical migrant bird's dilemma: where to stop for a good meal
Joseph J. Fontaine, Charles van Riper III
2009, Fact Sheet 2009-3038
To learn how migrating birds determine where to stop and find food, scientists from the U.S. Geological Survey, Northern Arizona University, and The University of Arizona studied the behavior of 28 species of neotropical migrant songbirds - warblers, flycatchers, tanagers, and vireos - along the lower Colorado River from 2001...
Geophysical Interpretations of the Southern Espanola Basin, New Mexico, That Contribute to Understanding Its Hydrogeologic Framework
V. J. S. Grauch, Jeffrey D. Phillips, Daniel Koning, Peggy S. Johnson, Viki Bankey
2009, Professional Paper 1761
The southern Espanola basin consists of a westward- and northward-thickening wedge of rift fill, composed primarily of Santa Fe Group sediments, that serves as an important aquifer for the city of Santa Fe and surrounding areas. Detailed aeromagnetic surveys were flown to better understand ground-water resources in this aquifer....
Assessing the Vulnerability of Public-Supply Wells to Contamination: Central Valley Aquifer System near Modesto, California
Martha L. Jagucki, Bryant C. Jurgens, Karen R. Burow, Sandra M. Eberts
2009, Fact Sheet 2009-3036
This fact sheet highlights findings from the vulnerability study of a public-supply well in Modesto, California. The well selected for study pumps on average about 1,600 gallons per minute from the Central Valley aquifer system during peak summer demand. Water samples were collected at the public-supply well and at monitoring...
Bayes factors and multimodel inference
W.A. Link, R. J. Barker
David L. Thomson, Evan G. Cooch, Michael J. Conroy, editor(s)
2009, Book chapter, Modeling demographic processes in marked populations
Multimodel inference has two main themes: model selection, and model averaging. Model averaging is a means of making inference conditional on a model set, rather than on a selected model, allowing formal recognition of the uncertainty associated with model choice. The Bayesian paradigm provides a natural framework for...
A traditional and a less-invasive robust design: choices in optimizing effort allocation for seabird population studies
S. J. Converse, W. L. Kendall, P.F. Doherty Jr., M.B. Naughton, J.E. Hines
David L. Thomson, Evan G. Cooch, Michael J. Conroy, editor(s)
2009, Book chapter, Modeling demographic processes in marked populations
For many animal populations, one or more life stages are not accessible to sampling, and therefore an unobservable state is created. For colonially-breeding populations, this unobservable state could represent the subset of adult breeders that have foregone breeding in a given year. This situation applies to many seabird populations, notably...
Inferences about landbird abundance from count data: recent advances and future directions
J.D. Nichols, L. Thomas, P.B. Conn
David L. Thomson, Evan G. Cooch, Michael J. Conroy, editor(s)
2009, Book chapter, Modeling demographic processes in marked populations
We summarize results of a November 2006 workshop dealing with recent research on the estimation of landbird abundance from count data. Our conceptual framework includes a decomposition of the probability of detecting a bird potentially exposed to sampling efforts into four separate probabilities. Primary inference methods are described...
One size does not fit all: Adapting mark-recapture and occupancy models for state uncertainty
W. L. Kendall
David L. Thomson, Evan G. Cooch, Michael J. Conroy, editor(s)
2009, Book chapter, Modeling demographic processes in marked populations
Multistate capture?recapture models continue to be employed with greater frequency to test hypotheses about metapopulation dynamics and life history, and more recently disease dynamics. In recent years efforts have begun to adjust these models for cases where there is uncertainty about an animal?s state upon capture. These efforts...
Exploring extensions to multi-state models with multiple unobservable states
L.L. Bailey, W. L. Kendall, D.R. Church
David L. Thomson, Evan G. Cooch, Michael J. Conroy, editor(s)
2009, Book chapter, Modeling demographic processes in marked populations
Many biological systems include a portion of the target population that is unobservable during certain life history stages. Transition to and from an unobservable state may be of primary interest in many ecological studies and such movements are easily incorporated into multi-state models. Several authors have investigated properties...
Inference about species richness and community structure using species-specific occupancy models in the National Swiss Breeding Bird Survey MUB
M. Kery, J. Andrew Royle
David L. Thomson, Evan G. Cooch, Michael J. Conroy, editor(s)
2009, Book chapter, Modeling demographic processes in marked populations
Species richness is the most widely used biodiversity measure. Virtually always, it cannot be observed but needs to be estimated because some species may be present but remain undetected. This fact is commonly ignored in ecology and management, although it will bias estimates of species richness and related...
A generalized mixed effects model of abundance for mark-resight data when sampling is without replacement
B.T. McClintock, Gary C. White, K.P. Burnham, M.A. Pryde
David L. Thomson, Evan G. Cooch, Michael J. Conroy, editor(s)
2009, Book chapter, Modeling demographic processes in marked populations
In recent years, the mark-resight method for estimating abundance when the number of marked individuals is known has become increasingly popular. By using field-readable bands that may be resighted from a distance, these techniques can be applied to many species, and are particularly useful for relatively small, closed populations....
Filling a void: abundance estimation of North American populations of arctic geese using hunter recoveries
R.T. Alisauskas, K.L. Drake, J.D. Nichols
David L. Thomson, Evan G. Cooch, Michael J. Conroy, editor(s)
2009, Book chapter, Modeling demographic processes in marked populations
We consider use of recoveries of marked birds harvested by hunters, in conjunction with continental harvest estimates, for drawing inferences about continental abundance of a select number of goose species. We review assumptions of this method, a version of the Lincoln?Petersen approach, and consider its utility as a tool...
Kilauea slow slip events: Identification, source inversions, and relation to seismicity
Emily K. Montgomery-Brown, P. Segall, Asta Miklius
2009, Journal of Geophysical Research B: Solid Earth (114)
Several slow slip events beneath the south flank of Kilauea Volcano, Hawaii, have been inferred from transient displacements in daily GPS positions. To search for smaller events that may be close to the noise level in the GPS time series, we compare displacement fields on Kilauea's south flank with displacement...
Coastal wetlands: an integrated ecosystem approach
G. M. E. Perillo, E. Wolanski, Donald R. Cahoon, M.M. Brinson, editor(s)
2009, Book
Coastal wetlands are under a great deal of pressure from the dual forces of rising sea level and the intervention of human populations both along the estuary and in the river catchment. Direct impacts include the destruction or degradation of wetlands from land reclamation and infrastructures. Indirect impacts derive from...
Analysis of Effects of 2003 and Full-Allocation Withdrawals in Critical Area 1, East-Central New Jersey
Frederick J. Spitz
2009, Open-File Report 2009-1104
Critical Area 1 in east-central New Jersey was mandated in the early 1980s to address large drawdowns caused by increases in groundwater withdrawals. The aquifers involved include the Englishtown aquifer system, Wenonah-Mount Laurel aquifer, and the Upper and Middle Potomac-Raritan-Magothy aquifers. Groundwater levels recovered as a result of mandated cutbacks...
Postcard for Ride the Rockies 2009
Janet Slate
2009, General Information Product 89
2009 Ride The Rockies route on shaded-relief mosaic of USGS Landsat 7 satellite images, west-central Colorado....
Fort Collins Science Center - Fiscal Year 2008 Science Accomplishments
Juliette T. Wilson (compiler)
2009, Open-File Report 2009-1107
Public land and natural resource managers in the United States are confronted with increasingly complex decisions that have important ramifications for both ecological and human systems. The scientists and technical professionals at the U.S. Geological Survey (USGS) Fort Collins Science Center (FORT) contribute a unique blend of ecological, socioeconomic, and...
Klamath River Water Quality Data from Link River Dam to Keno Dam, Oregon, 2008
Annett B. Sullivan, Michael L. Deas, Jessica Asbill, Julie D. Kirshtein, Kenna D. Butler, Jennifer Vaughn
2009, Open-File Report 2009-1105
This report documents sampling and analytical methods and presents field data from a second year of an ongoing study on the Klamath River from Link River Dam to Keno Dam in south central Oregon; this dataset will form the basis of a hydrodynamic and water quality model. Water quality was...
The Longview/Lakeview barite deposits, southern National Petroleum Reserve, Alaska (NPRA) — Potential-field models and preliminary size estimates
Jeanine M. Schmidt, Jonathan M. G. Glen, Robert L. Morin
2009, Professional Paper 1760-C
Longview and Lakeview are two of the larger stratiform barite deposits hosted in Mississippian Akmalik Chert in the Cutaway Basin area (Howard Pass C-3 quadrangle) of the southern National Petroleum Reserve, Alaska (NPRA). Geologic studies for the South NPRA Integrated Activity Plan and Environmental Impact Statement process included an attempt...
Acid neutralizing capacity and leachate results for igneous rocks, with associated carbon contents of derived soils, Animas River AML site, Silverton, Colorado
Douglas B. Yager, Mark R. Stanton, LaDonna M. Choate, Alison Burchell Alison
2009, Conference Paper, 26th annual meetings of the American Society of Mining and Reclamation and 11th Billings Land Reclamation Symposium 2009 : Billings, Montana, USA, 30 May-5 June 2009
Mine planning efforts have historically overlooked the possible acid neutralizing capacity (ANC) that local igneous rocks can provide to help neutralize acidmine drainage. As a result, limestone has been traditionally hauled to mine sites for use in neutralizing acid drainage. Local igneous rocks, when used as part of mine life-cycle...
Sea Floor off San Diego, California
Peter Dartnell, Helen Gibbons
2009, General Information Product 87
Ocean-floor image generated from multibeam-bathymetry data acquired by the U.S. Geological Survey (USGS); Woods Hole Oceanographic Institution; Scripps Institution of Oceanography; California State University, Monterey Bay; and Fugro Pelagos. To learn more, visit http://pubs.usgs.gov/sim/2007/2959/....
Spatially referenced statistical assessment of dissolved-solids load sources and transport in streams of the Upper Colorado River Basin
Terry A. Kenney, Steven J. Gerner, Susan G. Buto, Lawrence E. Spangler
2009, Scientific Investigations Report 2009-5007
The Upper Colorado River Basin (UCRB) discharges more than 6 million tons of dissolved solids annually, about 40 to 45 percent of which are attributed to agricultural activities. The U.S. Department of the Interior estimates economic damages related to salinity in excess of $330 million annually in the Colorado River...
Relation between Streamflow of Swiftcurrent Creek, Montana, and the Geometry of Passage for Bull Trout (Salvelinus confluentus)
Gregor T. Auble, Christopher L. Holmquist-Johnson, Jim T. Mogen, Lynn R. Kaeding, Zachary H. Bowen
2009, Scientific Investigations Report 2009-5100
Operation of Sherburne Dam in northcentral Montana has typically reduced winter streamflow in Swiftcurrent Creek downstream of the dam and resulted in passage limitations for bull trout (Salvelinus confluentus). We defined an empirical relation between discharge in Swiftcurrent Creek between Sherburne Dam and the downstream confluence with Boulder Creek and...
