Watershed regressions for pesticides (warp) models for predicting atrazine concentrations in Corn Belt streams
Wesley W. Stone, Robert J. Gilliom
2012, Journal of the American Water Resources Association (48) 970-986
Watershed Regressions for Pesticides (WARP) models, previously developed for atrazine at the national scale, are improved for application to the United States (U.S.) Corn Belt region by developing region-specific models that include watershed characteristics that are influential in predicting atrazine concentration statistics within the Corn Belt. WARP models for the...
Prevalence of a potentially lethal parasite of wading birds in natural and agricultural wetlands in south Louisiana
Margaret C. Luent, Melissa Collins, Clinton Jeske, Paul Leberg
2012, Southeastern Naturalist (11) 415-422
Gambusia affinis (Western Mosquitofish) were sampled from 18 sites representing marsh, forested wetlands, and agricultural wetlands in south Louisiana to determine distribution and infection parameters of Eustrongylides ignotus, a potentially lethal nematode parasite of wading birds, (n = 400 per site). Overall, prevalence of infection was 0.3%, with significantly higher...
Hydrozincite seasonal precipitation at Naracauli (Sardinia – Italy): Hydrochemical factors and morphological features of the biomineralization process
D. Medas, R. Cidu, P. Lattanzi, F. Podda, Richard B. Wanty, G. De Giudici
2012, Applied Geochemistry (27) 1814-1820
Hydrozincite [Zn5(CO3)2(OH)6] precipitation from Naracauli waters (SW Sardinia) is, among other things, promoted by a microbial community made up of a filamentous cyanobacterium (Scytonema sp.) and a microalgae (Chlorella sp.). Hydrozincite bioprecipitation is responsible for the natural removal of harmful metals, especially Zn, from the stream waters. Thus, hydrozincite could be used...
Wildlife contact analysis: Emerging methods, questions, and challenges
Paul C. Cross, Tyler G. Creech, Michael R. Ebinger, Dennis M. Heisey, Kathryn M. Irvine, Scott Creel
2012, Behavioral Ecology and Sociobiology (66) 1437-1447
Recent technological advances, such as proximity loggers, allow researchers to collect complete interaction histories, day and night, among sampled individuals over several months to years. Social network analyses are an obvious approach to analyzing interaction data because of their flexibility for fitting many different social structures as well as the...
Geologic assessment of undiscovered conventional oil and gas resources--Middle Eocene Claiborne Group, United States part of the Gulf of Mexico Basin
Paul C. Hackley
2012, Open-File Report 2012-1144
The Middle Eocene Claiborne Group was assessed using established U.S. Geological Survey (USGS) assessment methodology for undiscovered conventional hydrocarbon resources as part of the 2007 USGS assessment of Paleogene-Neogene strata of the United States part of the Gulf of Mexico Basin including onshore and State waters. The assessed area is...
History of earthquakes and tsunamis along the eastern Aleutian-Alaska megathrust, with implications for tsunami hazards in the California Continental Borderland
Holly F. Ryan, Roland E. von Huene, Ray E. Wells, David W. Scholl, Stephen Kirby, Amy E. Draut
Julie A. Dumoulin, C. Dusel-Bacon, editor(s)
2012, Professional Paper 1795-A
During the past several years, devastating tsunamis were generated along subduction zones in Indonesia, Chile, and most recently Japan. Both the Chile and Japan tsunamis traveled across the Pacific Ocean and caused localized damage at several coastal areas in California. The question remains as to whether coastal California, in particular...
Archive of digital boomer subbottom profile data collected in the Atlantic Ocean offshore northeast Florida during USGS cruises 03FGS01 and 03FGS02 in September and October of 2003
Karynna Calderon, Arnell S. Forde, Shawn V. Dadisman, Dana S. Wiese, Daniel C. Phelps
2012, Data Series 670
In September and October of 2003, the U.S. Geological Survey (USGS), in cooperation with the Florida Geological Survey, conducted geophysical surveys of the Atlantic Ocean offshore northeast Florida from St. Augustine, Florida, to the Florida-Georgia border. This report serves as an archive of unprocessed digital boomer subbottom profile data, trackline...
Archive of digital chirp subbottom profile data collected during USGS cruise 10BIM04 offshore Cat Island, Mississippi, September 2010
Arnell S. Forde, Shawn V. Dadisman, Jack L. Kindinger, Jennifer L. Miselis, Dana S. Wiese, Noreen A. Buster
2012, Data Series 724
In September of 2010, the U.S. Geological Survey (USGS), in cooperation with the U.S. Army Corps of Engineers (USACE), conducted a geophysical survey to investigate the geologic controls on barrier island framework of Cat Island, Miss., as part of a broader USGS study on Barrier Island Mapping (BIM). These surveys...
N2-fixing red alder indirectly accelerates ecosystem nitrogen cycling
Steven S. Perakis, Joselin J. Matkins, David E. Hibbs
2012, Ecosystems (15) 1182-1193
Symbiotic N2-fixing tree species can accelerate ecosystem N dynamics through decomposition via direct pathways by producing readily decomposed leaf litter and increasing N supply to decomposers, as well as via indirect pathways by increasing tissue and detrital N in non-fixing vegetation. To evaluate the relative importance of these pathways, we...
Radio telemetry equipment and applications for carnivores
Mark R. Fuller, Todd K. Fuller
Luigi Boitani, Roger A. Powell, editor(s)
2012, Book chapter, Carnivore ecology and conservation: A handbook of techniques
Radio-telemetry was not included in the first comprehensive manual of wildlife research techniques (Mosby 1960) because the first published papers were about physiological wildlife telemetry (LeMunyan et al. 1959) and because research using telemetry in field ecology was just being initiated (Marshall et al. 1962; Cochran and Lord 1963). Among...
Influence of permafrost distribution on groundwater flow in the context of climate-driven permafrost thaw: Example from Yukon Flats Basin, Alaska, United States
Michelle Ann Walvoord, Clifford I. Voss, Tristan P. Wellman
2012, Water Resources Research (48)
Understanding the role of permafrost in controlling groundwater flow paths and fluxes is central in studies aimed at assessing potential climate change impacts on vegetation, species habitat, biogeochemical cycling, and biodiversity. Recent field studies in interior Alaska show evidence of hydrologic changes hypothesized to result from permafrost degradation. This study...
Health assessment of captive and wild-caught West Indian manatees (Trichechus manatus)
M. Andrew Stamper, Robert K. Bonde
Ellen Hines, John E. Reynolds III, Lemnuel Aragones, Antonio Mignucci-Giannoni, Miriam Marmontel, editor(s)
2012, Book chapter, Sirenian conservation: Isues and strategies in developing countries
A random biogeochemical walk into three soda lakes of the western USA: With an introduction to a few of their microbial denizens
Ronald S. Oremland
Joseph Seckbach, Aharon Oren, Helga Stan-Lotter, editor(s)
2012, Book chapter, Polyextremophiles -- Organisms living under multiple stress
Mapping plant species ranges in the Hawaiian Islands: developing a methodology and associated GIS layers
Jonathan P. Price, James D. Jacobi, Samuel M. Gon III, Dwight Matsuwaki, Loyal Mehrhoff, Warren Wagner, Matthew Lucas, Barbara Rowe
2012, Open-File Report 2012-1192
This report documents a methodology for projecting the geographic ranges of plant species in the Hawaiian Islands. The methodology consists primarily of the creation of several geographic information system (GIS) data layers depicting attributes related to the geographic ranges of plant species. The most important spatial-data layer generated here is...
Remaining recoverable petroleum in giant oil fields of the Los Angeles Basin, southern California
Donald L. Gautier, Marilyn E. Tennyson, Troy A. Cook, Ronald R. Charpentier, Timothy R. Klett
2012, Fact Sheet 2012-3120
Using a probabilistic geology-based methodology, a team of U.S. Geological Survey (USGS) scientists recently assessed the remaining recoverable oil in 10 oil fields of the Los Angeles Basin in southern California. The results of the assessment suggest that between 1.4 and 5.6 billion barrels of additional oil could be recovered...
Archive of digital boomer subbottom data collected during USGS cruise 05FGS01 offshore east-central Florida, July 17-29, 2005
Arnell S. Forde, Shawn V. Dadisman, Dana S. Wiese, Daniel C. Phelps
2012, Data Series 647
In July of 2005, the U.S. Geological Survey (USGS), in cooperation with the Florida Geological Survey (FGS), conducted a geophysical survey of the Atlantic Ocean offshore of Florida's east coast from Flagler Beach to Daytona Beach. This report serves as an archive of unprocessed digital boomer subbottom data, trackline maps,...
Inoculation of bats with European Geomyces destructans supports the novel pathogen hypothesis for the origin of white-nose syndrome
Lisa Warnecke, James M. Turner, Trent K. Bollinger, Jeffrey M. Lorch, Vikram Misra, Paul M. Cryan, Gudrun Wibbelt, David S. Blehert, Craig K. R. Willis
2012, Proceedings of the National Academy of Sciences (109) 6999-7003
White-nose syndrome (WNS) is an emerging disease of hibernating bats associated with cutaneous infection by the fungus Geomyces destructans (Gd), and responsible for devastating declines of bat populations in eastern North America. Affected bats appear emaciated and one hypothesis is that they spend too much time out of torpor during hibernation, depleting...
Surface-water radon-222 distribution along the west-central Florida shelf
Christopher G. Smith, L. L. Robbins
2012, Open-File Report 2012-1212
In February 2009 and August 2009, the spatial distribution of radon-222 in surface water was mapped along the west-central Florida shelf as collaboration between the Response of Florida Shelf Ecosystems to Climate Change project and a U.S. Geological Survey Mendenhall Research Fellowship project. This report summarizes the surface distribution of...
Style, usage, grammar, and punctuation
Alexander V. Zale, David A. Hewitt, Brian R. Murphy
Cecil A. Jennings, Thomas E. Lauer, Bruce Vondracek, editor(s)
2012, Book chapter, Scientific communication for natural resource professionals
Spring snow goose hunting influences body composition of waterfowl staging in Nebraska
Aaron T. Pearse, Gary L. Krapu, Robert R. Cox Jr.
2012, Journal of Wildlife Management (76) 1393-1400
A spring hunt was instituted in North America to reduce abundance of snow geese (Chen caerulescens) by increasing mortality of adults directly, yet disturbance from hunting activities can indirectly influence body condition and ultimately, reproductive success. We estimated effects of hunting disturbance by comparing body composition of snow geese and...
Puerto Rico and Florida manatees represent genetically distinct groups
Margaret E. Hunter, Antonio A. Mignucci-Giannoni, Kimberly Pause Tucker, Tim L. King, Robert K. Bonde, Brian A. Gray, Peter M. McGuire
2012, Conservation Genetics (13) 1623-1635
The West Indian manatee (Trichechus manatus) populations in Florida (T. m. latirostris) and Puerto Rico (T. m. manatus) are considered distinct subspecies and are listed together as endangered under the United States Endangered Species Act. Sustained management and conservation efforts for the Florida subspecies have led to the suggested reclassification...
Generation of a U.S. national urban land use product
James A. Falcone, Collin G. Homer
2012, Photogrammetric Engineering and Remote Sensing (78) 1057-1068
Characterization of urban land uses is essential for many applications. However, differentiating among thematically-detailed urban land uses (residential, commercial, industrial, institutional, recreational, etc.) over broad areas is challenging, in part because image-based solutions are not ideal for establishing the contextual basis for identifying economic function and use. At present no...
Sample design effects in landscape genetics
Sara J. Oyler-McCance, Bradley C. Fedy, Erin L. Landguth
2012, Conservation Genetics
An important research gap in landscape genetics is the impact of different field sampling designs on the ability to detect the effects of landscape pattern on gene flow. We evaluated how five different sampling regimes (random, linear, systematic, cluster, and single study site) affected the probability of correctly identifying the...
Constraining the location of the Archean--Proterozoic suture in the Great Basin based on magnetotelluric soundings
Brian D. Rodriguez, Jay A. Sampson
2012, Open-File Report 2012-1117
It is important to understand whether major mining districts in north-central Nevada are underlain by Archean crust, known to contain major orogenic gold deposits, or, alternatively, by accreted crust of the Paleoproterozoic Mojave province. Determining the location and orientation of the Archean-Proterozoic suture zone between the Archean crust and Mojave...
Bathymetric controls on sediment transport in the Hudson River estuary: Lateral asymmetry and frontal trapping
David K. Ralston, W. Rockwell Geyer, John C. Warner
2012, Journal of Geophysical Research (117)
Analyses of field observations and numerical model results have identified that sediment transport in the Hudson River estuary is laterally segregated between channel and shoals, features frontal trapping at multiple locations along the estuary, and varies significantly over the spring-neap tidal cycle. Lateral gradients in depth, and therefore baroclinic pressure...
