Velocity-based movement modeling for individual and population level inference
Ephraim M. Hanks, Mevin Hooten, Devin S. Johnson, Jeremy T. Sterling
2011, PLoS ONE (6) e22795
Understanding animal movement and resource selection provides important information about the ecology of the animal, but an animal's movement and behavior are not typically constant in time. We present a velocity-based approach for modeling animal movement in space and time that allows for temporal heterogeneity in an animal's response to...
Vegetation history along the eastern, desert escarpment of the Sierra San Pedro Mártir, Baja California, Mexico
Camille A. Holmgren, Julio L. Betancourt, Kate A. Rylander
2011, Quaternary Research (75) 647-657
Plant macrofossils from 38 packrat middens spanning the last ~ 33,000 cal yr BP record vegetation between ~ 650 and 900 m elevation along the eastern escarpment of the Sierra San Pedro Mártir, northern Baja California. The middens span most of the Holocene, with a gap between ~ 4600 and...
Variability of albedo and utility of the MODIS albedo product in forested wetlands
David M. Sumner, Qinglong Wu, Chandra S. Pathak
2011, Wetlands (31) 229-237
Albedo was monitored over a two-year period (beginning April 2008) at three forested wetland sites in Florida, USA using up- and down-ward facing pyranometers. Water level, above and below land surface, is the primary control on the temporal variability of daily albedo. Relatively low reflectivity of water accounts for the...
Visualizing trace element distribution in quartz using cathodoluminescence, electron microprobe, and laser ablation-inductively coupled plasma-mass spectrometry
Brian Rusk, Alan Koenig, Heather Lowers
2011, American Mineralogist (96) 703-708
Cathodoluminescent (CL) textures in quartz reveal successive histories of the physical and chemical fluctuations that accompany crystal growth. Such CL textures reflect trace element concentration variations that can be mapped by electron microprobe or laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS). Trace element maps in hydrothermal quartz from four different ore...
Database for potential hazards from future volcanic eruptions in California
Melissa N. White, David W. Ramsey, C. Dan Miller
2011, Data Series 661
More than 500 volcanic vents have been identified in the State of California. At least 76 of these vents have erupted, some repeatedly, during the past 10,000 yr. Past volcanic activity has ranged in scale and type from small rhyolitic and basaltic eruptions through large catastrophic rhyolitic eruptions. Sooner or...
EAARL topography-Three Mile Creek and Mobile-Tensaw Delta, Alabama, 2010
Amar Nayegandhi, J.M. Bonisteel-Cormier, A.P. Clark, C. W. Wright, J. C. Brock, D.B. Nagle, Saisudha Vivekanandan, Xan Fredericks
2011, Data Series 618
This DVD contains lidar-derived first-surface (FS) and bare-earth (BE) topography GIS datasets of a portion of the Mobile-Tensaw Delta region and Three Mile Creek in Alabama. These datasets were acquired on March 6, 2010....
Bathymetric survey of Carroll Creek Tributary to Lake Tuscaloosa, Tuscaloosa County, Alabama, 2010
K.G. Lee, D.R. Kimbrow
2011, Scientific Investigations Map 3176
The U.S. Geological Survey, in cooperation with the City of Tuscaloosa, conducted a bathymetric survey of Carroll Creek, on May 12-13, 2010. Carroll Creek is one of the major tributaries to Lake Tuscaloosa and contributes about 6 percent of the surface drainage area. A 3.5-mile reach of Carroll Creek was...
EAARL coastal topography-Virginia, post-Nor'Ida, 2009
J.M. Bonisteel-Cormier, Amar Nayegandhi, Xan Fredericks, E.S. Klipp, D.B. Nagle, Saisudha Vivekanandan, C. W. Wright, A. H. Sallenger, J. C. Brock
2011, Data Series 638
This DVD contains lidar-derived first-surface (FS) and bare-earth (BE) topography GIS datasets of a portion of the Virginia coastline beachface. These datasets were acquired post-Nor'Ida on November 27, 2009, November 29, 2009, and December 1, 2009....
Archive of digital Chirp subbottom profile data collected during USGS cruises 10CCT01, 10CCT02, and 10CCT03, Mississippi and Alabama Gulf Islands, March and April 2010
Arnell S. Forde, Shawn V. Dadisman, James G. Flocks, Dana S. Wiese, Nancy T. DeWitt, William R. Pfeiffer, Kyle W. Kelso, Phillip R. Thompson
2011, Data Series 611
This Digital Versatile Disc (DVD) publication was prepared by an agency of the United States Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other...
Provisional zircon and monazite uranium-lead geochronology for selected rocks from Vermont
John N. Aleinikoff, Nicholas M. Ratcliffe, Gregory J. Walsh
2011, Open-File Report 2011-1309
This report presents the results of zircon and monazite uranium-lead (U-Pb) geochronologic analyses of 24 rock samples. The samples in this study were collected from mapped exposures identified while conducting either new, detailed (1:24,000-scale) geologic quadrangle mapping or reconnaissance mapping, both of which were used for compilation of the bedrock...
EAARL topography-Potato Creek watershed, Georgia, 2010
J.M. Bonisteel-Cormier, Amar Nayegandhi, Xan Fredericks, J. W. Jones, C. W. Wright, J. C. Brock, D.B. Nagle
2011, Data Series 617
This DVD contains lidar-derived first-surface (FS) and bare-earth (BE) topography GIS datasets of a portion of the Potato Creek watershed in the Apalachicola-Chattahoochee-Flint River basin, Georgia. These datasets were acquired on February 27, 2010....
Observations of wave runup, setup, and swash on natural beaches
Hilary F. Stockdon, Rob A. Holman
2011, Data Series 602
Video-based observations of wave runup, setup, and swash from 10 dynamically diverse field experiments are presented. These data were used to develop widely applicable empirical parameterizations for wave setup, incident band swash height, infragravity band swash height, and the 2-percent exceedance level for wave runup. Details regarding the experiments, data...
EAARL coastal topography-eastern Florida, post-Hurricane Jeanne, 2004
Xan Fredericks, Amar Nayegandhi, J.M. Bonisteel-Cormier, C. W. Wright, A. H. Sallenger, J. C. Brock, E.S. Klipp, D.B. Nagle
2011, Data Series 627
This DVD contains lidar-derived bare-earth (BE) topography GIS datasets of a portion of the eastern Florida coastline beachface, acquired post-Hurricane Jeanne on October 1, 2004....
EAARL coastal topography-Northern Outer Banks, North Carolina, post-Nor'Ida, 2009
J.M. Bonisteel-Cormier, Amar Nayegandhi, C. W. Wright, A. H. Sallenger, J. C. Brock, D.B. Nagle, Saisudha Vivekanandan, E.S. Klipp, Xan Fredericks
2011, Data Series 616
This DVD contains lidar-derived first-surface (FS) and bare-earth (BE) topography GIS datasets of a portion of the northern Outer Banks beachface in North Carolina. These datasets were acquired post-Nor'Ida on November 27 and 29, 2009....
Quantile equivalence to evaluate compliance with habitat management objectives
Brian S. Cade, Pamela R. Johnson
2011, Journal of Fish and Wildlife Management (2) 169-182
Equivalence estimated with linear quantile regression was used to evaluate compliance with habitat management objectives at Arapaho National Wildlife Refuge based on monitoring data collected in upland (5,781 ha; n = 511 transects) and riparian and meadow (2,856 ha, n = 389 transects) habitats from 2005 to 2008. Quantiles were used because the management objectives specified...
Using data from an encounter sampler to model fish dispersal
A. Obaza, D.L. DeAngelis, J.C. Trexler
2011, Journal of Fish Biology (78) 495-513
A method to estimate speed of free-ranging fishes using a passive sampling device is described and illustrated with data from the Everglades, U.S.A. Catch per unit effort (CPUE) from minnow traps embedded in drift fences was treated as an encounter rate and used to estimate speed, when combined with an...
Using body mass dynamics to examine long-term habitat shifts of arctic-molting geese: Evidence for ecological change
Tyler L. Lewis, Paul L. Flint, Dirk V. Derksen, Joel A. Schmutz, Eric J. Taylor, Karen S. Bollinger
2011, Polar Biology (34) 1751-1762
From 1976 onward, molting brant geese (Branta bernicla) within the Teshekpuk Lake Special Area, Alaska, shifted from inland, freshwater lakes toward coastal wetlands. Two hypotheses explained this redistribution: (1) ecological change: redistribution of molting brant reflects improvements in coastal foraging habitats, which have undergone a succession toward salt-tolerant plants due...
Using avian radar to examine relationships among avian activity, bird strikes, and meteorological factors
Peter S. Coates, Michael L. Casazza, Brian J. Halstead, Joseph P. Fleskes, James A. Laughlin
2011, Human-Wildlife Interactions (5) 249-268
Radar systems designed to detect avian activity at airfields are useful in understanding factors that influence the risk of bird and aircraft collisions (bird strikes). We used an avian radar system to measure avian activity at Beale Air Force Base, California, USA, during 2008 and 2009. We conducted a 2-part...
Use of spatial capture-recapture modeling and DNA data to estimate densities of elusive animals
Marc Kery, Beth Gardner, Tabea Stoeckle, Darius Weber, J. Andrew Royle
2011, Conservation Biology (25) 356-364
Assessment of abundance, survival, recruitment rates, and density (i.e., population assessment) is especially challenging for elusive species most in need of protection (e.g., rare carnivores). Individual identification methods, such as DNA sampling, provide ways of studying such species efficiently and noninvasively. Additionally, statistical methods that correct for undetected animals and...
Use of recent and historical records to estimate status and trends of a rare and imperiled stream fish, Percina jenkinsi (Percidae)
Megan M. Hagler, Mary Freeman, Seth J. Wenger, Byron J. Freeman, Patrick L. Rakes, J.R. Shute
2011, Canadian Journal of Fisheries and Aquatic Sciences (68) 739-748
Rarely encountered animals may be present but undetected, potentially leading to incorrect assumptions about the persistence of a local population or the conservation priority of a particular area. The federally endangered and narrowly endemic Conasauga logperch (Percina jenkinsi) is a good example of a rarely encountered fish species of conservation...
Patterns of hybridization of nonnative cutthroat trout and hatchery rainbow trout with native redband trout in the Boise River, Idaho
Helen M. Neville, Jason B. Dunham
2011, North American Journal of Fisheries Management (31) 1163-1176
Hybridization is one of the greatest threats to native fishes. Threats from hybridization are particularly important for native trout species as stocking of nonnative trout has been widespread within the ranges of native species, thus increasing the potential for hybridization. While many studies have documented hybridization between native cutthroat trout...
Impact of mine and natural sources of mercury on water, sediment, and biota in Harley Gulch adjacent to the Abbott-Turkey Run mine, Lake County, California
James J. Rytuba, Roger L. Hothem, Brianne E. Brussee, Daniel N. Goldstein
2011, Open-File Report 2011-1265
Executive SummaryStable-isotope data indicate that there are three sources of water that effect the composition and Hg concentration of waters in Harley Gulch: (1) meteoric water that dominates water chemistry during the wet season; (2) thermal water effluent from the Turkey Run mine that effects the chemistry at sample site...
Using digital photography to examine grazing in montane meadows
Susan K. McIlroy, Barbara H. Allen-Diaz, Alexander C. Berg
2011, Rangeland Ecology and Management (64) 187-195
Cattle (Bos taurus) numbers on national forests are allocated based on allotment grazing capacity, but spatial patterns of timing and density at smaller scales are difficult to assess. However, it is often in meadows or riparian areas that grazing may affect hydrology, biodiversity, and other important ecosystem characteristics. To explore...
Bathymetry and digital elevation models of Coyote Creek and Alviso Slough, South San Francisco Bay, California
Amy C. Foxgrover, David P. Finlayson, Bruce E. Jaffe, Theresa A. Fregoso
2011, Open-File Report 2011-1315
In 2010, the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center completed three cruises to map the bathymetry of the main channel and shallow intertidal mudflats in the southernmost part of south San Francisco Bay. The three surveys were merged to generate comprehensive maps of Coyote Creek (from...
Changes in low-flow frequency from 1976-2006 at selected streamgages in New York, excluding Long Island
Thomas P. Suro, Christopher L. Gazoorian
2011, Scientific Investigations Report 2011-5112
Many Federal, State, and local agencies use low-flow data to establish water-use policy and help determine the total maximum daily loads and effluent limits of point and nonpoint sources of contamination of surface water during periods of decreased streamflow. Low-flow magnitude and frequency are used often by water-supply planners, reservoir...
