Evaluating the predictive abilities of community occupancy models using AUC while accounting for imperfect detection
Elise F. Zipkin, Evan H. Campbell Grant, William F. Fagan
2012, Ecological Applications (22) 1962-1972
The ability to accurately predict patterns of species' occurrences is fundamental to the successful management of animal communities. To determine optimal management strategies, it is essential to understand species-habitat relationships and how species habitat use is related to natural or human-induced environmental changes. Using five years of monitoring...
Joint estimation of habitat dynamics and species interactions: Disturbance reduces co-occurrence of non-native predators with an endangered toad
David A.W. Miller, Cheryl S. Brehme, James E. Hines, James D. Nichols, Robert N. Fisher
2012, Journal of Animal Ecology (81) 1288-1297
1. Ecologists have long been interested in the processes that determine patterns of species occurrence and co-occurrence. Potential short-comings of many existing empirical approaches that address these questions include a reliance on patterns of occurrence at a single time point, failure to account properly for imperfect detection and treating the environment...
Conceptual and numerical models of the glacial aquifer system north of Aberdeen, South Dakota
Katrina A. Marini, Galen K. Hoogestraat, Katherine R. Aurand, Larry D. Putnam
2012, Scientific Investigations Report 2012-5183
This U.S. Geological Survey report documents a conceptual and numerical model of the glacial aquifer system north of Aberdeen, South Dakota, that can be used to evaluate and manage the city of Aberdeen's water resources. The glacial aquifer system in the model area includes the Elm, Middle James, and Deep...
Geologic map of the Tuba City 30' x 60' quadrangle, Coconino County, northern Arizona
George H. Billingsley, Philip W. Stoffer, Susan S. Priest
2012, Scientific Investigations Map 3227
The Tuba City 30’ x 60’ quadrangle encompasses approximately 5,018 km² (1,920 mi²) within Coconino County, northern Arizona. It is characterized by nearly flat lying to gently dipping sequences of Paleozoic and Mesozoic strata that overly tilted Precambrian strata or metasedimentary and igneous rocks that are exposed at the bottom...
Determination of steroid hormones and related compounds in filtered and unfiltered water by solid-phase extraction, derivatization, and gas chromatography with tandem mass spectrometry
William T. Foreman, James L. Gray, Rhiannon C. ReVello, Chris E. Lindley, Scott A. Losche, Larry B. Barber
2012, Techniques and Methods 5-B9
A new analytical method has been developed and implemented at the U.S. Geological Survey National Water Quality Laboratory that determines a suite of 20 steroid hormones and related compounds in filtered water (using laboratory schedule 2434) and in unfiltered water (using laboratory schedule 4434). This report documents the procedures and...
Microbial colonization and controls in dryland systems
Stephen B. Pointing, Jayne Belnap
2012, Nature Reviews Microbiology (10) 551-562
Drylands constitute the most extensive terrestrial biome, covering more than one-third of the Earth's continental surface. In these environments, stress limits animal and plant life, so life forms that can survive desiccation and then resume growth following subsequent wetting assume the foremost role in ecosystem processes. In this Review, we...
Chlorophacinone residues in mammalian prey at a black-tailed prairie dog colony
Nimish B. Vyas, Craig S. Hulse, Clifford P. Rice
2012, Environmental Toxicology and Chemistry (31) 2513-2516
Black-tailed prairie dogs (BTPDs), Cynomys ludovicianus, are an important prey for raptors; therefore, the use of the rodenticide Rozol (0.005% chlorophacinone active ingredient) to control BTPDs raises concern for secondary poisonings resulting from the consumption of contaminated prey by raptors. In the present study, the authors observed Rozol exposure...
Gene expression, glutathione status and indicators of hepatic oxidative stress in laughing gull (Larus atricilla) hatchlings exposed to methylmercury
Kathryn Jenko, Natalie K. Karouna-Renier, David J. Hoffman
2012, Environmental Toxicology and Chemistry (31) 2588-2596
Despite extensive studies of methylmercury (MeHg) toxicity in birds, molecular effects on birds are poorly characterized. To improve our understanding of toxicity pathways and identify novel indicators of avian exposure to Hg, the authors investigated genomic changes, glutathione status, and oxidative status indicators in liver from laughing gull (Larus...
Invertebrate and fish assemblage relations to dissolved oxygen minima in lowland streams of southwestern Louisiana
B. G. Justus, Scott V. Mize, Daniel Kroes
2012, River Research and Applications (30) 11-28
Dissolved oxygen (DO) concentrations in lowland streams are naturally lower than those in upland streams; however, in some regions where monitoring data are lacking, DO criteria originally established for upland streams have been applied to lowland streams. This study investigated the DO concentrations at which fish and invertebrate assemblages...
Flood-inundation maps for the Leaf River at Hattiesburg, Mississippi
John B. Storm
2012, Scientific Investigations Map 3228
Digital flood-inundation maps for a 1.7-mile reach of the Leaf River were developed by the U.S. Geological Survey (USGS) in cooperation with the City of Hattiesburg, City of Petal, Forrest County, Mississippi Emergency Management Agency, Mississippi Department of Homeland Security, and the Emergency Management District. The Leaf River study reach...
Mapping the potential distribution of the invasive Red Shiner, Cyprinella lutrensis (Teleostei: Cyprinidae) across waterways of the conterminous United States
Helen M. Poulos, Barry Chernoff, Pam L. Fuller, David Butman
2012, Aquatic Invasions (7) 377-385
Predicting the future spread of non-native aquatic species continues to be a high priority for natural resource managers striving to maintain biodiversity and ecosystem function. Modeling the potential distributions of alien aquatic species through spatially explicit mapping is an increasingly important tool for risk assessment and prediction. Habitat modeling also...
Concentrations, loads, and yields of select constituents from major tributaries of the Mississippi and Missouri Rivers in Iowa, water years 2004-2008
Jessica D. Garrett
2012, Scientific Investigations Report 2012-5240
Excess nutrients, suspended-sediment loads, and the presence of pesticides in Iowa rivers can have deleterious effects on water quality in State streams, downstream major rivers, and the Gulf of Mexico. Fertilizer and pesticides are used to support crop growth on Iowa's highly productive agricultural landscape and for household and commercial...
Digital Mapping Techniques '10-Workshop Proceedings, Sacramento, California, May 16-19, 2010
David R. Soller
David R. Soller, editor(s)
2012, Open-File Report 2012-1171
The Digital Mapping Techniques '10 (DMT'10) workshop was attended by 110 technical experts from 40 agencies, universities, and private companies, including representatives from 19 State geological surveys (see Appendix A). This workshop, hosted by the California Geological Survey, May 16-19, 2010, in Sacramento, California, was similar in nature to the...
Southwest Washington littoral drift restoration—Beach and nearshore morphological monitoring
Andrew W. Stevens, Guy Gelfenbaum, Peter Ruggiero, George M. Kaminsky
2012, Open-File Report 2012-1175
A morphological monitoring program has documented the placement and initial dispersal of beach nourishment material (280,000 m3) placed between the Mouth of the Columbia River (MCR) North Jetty and North Head, at the southern end of the Long Beach Peninsula in southwestern Washington State. A total of 21 topographic surveys...
Bankfull-channel geometry and discharge curves for the Rocky Mountains Hydrologic Region in Wyoming
Katharine Foster
2012, Scientific Investigations Report 2012-5178
Regional curves relate bankfull-channel geometry and bankfull discharge to drainage area in regions with similar runoff characteristics and are used to estimate the bankfull discharge and bankfull-channel geometry when the drainage area of a stream is known. One-variable, ordinary least-squares regressions relating bankfull discharge, cross-sectional area, bankfull width, and bankfull...
Simulated effects of alternative withdrawal strategies on groundwater flow in the unconfined Kirkwood-Cohansey aquifer system, the Rio Grande water-bearing zone, and the Atlantic City 800-foot sand in the Great Egg Harbor and Mullica River Basins, New Jersey
Daryll A. Pope, Glen B. Carleton, Debra E. Buxton, Richard L. Walker, Jennifer L. Shourds, Pamela A. Reilly
2012, Scientific Investigations Report 2012-5187
Groundwater is essential for water supply and plays a critical role in maintaining the environmental health of freshwater and estuarine ecosystems in the Atlantic Coastal basins of New Jersey. The unconfined Kirkwood-Cohansey aquifer system and the confined Atlantic City 800-foot sand are major sources of groundwater in the area, and...
Digital recovery of 19th century surveys in Tampa Bay, Florida: Topographic charts and Public Land Surveys
Ellen A. Raabe, Laura C. Roy, Carole C. McIvor, Andrew D. Gleim
2012, Data Series 727
Recovery of historic data to a digital setting adresses the need for data integration through time, bridging technical gaps and differences. The goal of this study was to evaluate a marsh-to-mangrove conversion spanning 125 years and the implications for present coastal-resource management (Yates and others, 2011; Raabe and others, 2012)....
The effect of leaf beetle herbivory on the fire behaviour of tamarisk (Tamarix ramosissima Lebed.)
Gail M. Drus, Tom L. Dudley, Matthew L. Brooks, John R. Matchett
2012, International Journal of Wildland Fire (22) 446-458
The non-native tree, Tamarix spp. has invaded desert riparian ecosystems in the south-western United States. Fire hazard has increased, as typically fire-resistant native vegetation is replaced by Tamarix. The tamarisk leaf beetle, Diorhabda carinulata Desbrochers, introduced for biological control, may affect fire behaviour by converting hydrated live Tamarix leaves and...
Mapping grasslands suitable for cellulosic biofuels in the Greater Platte River Basin, United States
Bruce K. Wylie, Yingxin Gu
2012, Fact Sheet 2012-3126
Biofuels are an important component in the development of alternative energy supplies, which is needed to achieve national energy independence and security in the United States. The most common biofuel product today in the United States is corn-based ethanol; however, its development is limited because of concerns about global food...
Digital geologic map of the Redding 1° x 2° quadrangle, Shasta, Tehama, Humboldt, and Trinity Counties, California
Luis A. Fraticelli, John P. Albers, William P. Irwin, Milton C. Blake, Carl M. Wentworth
2012, Open-File Report 2012-1228
The Redding 1° x 2° quadrangle in northwestern California transects the Franciscan Complex and southern Klamath Mountains province as well as parts of the Great Valley Complex, northern Great Valley, and southernmost Cascades volcanic province. The tectonostratigraphic terranes of the Klamath province represent slices of oceanic crust, island arcs, and...
Tohoku-Oki Earthquake Tsunami Runup and Inundation Data for Sites Around the Island of Hawaiʻi
Frank A. Trusdell, Amy Chadderton, Graham Hinchliffe, Andrew Hara, Brent Patenge, Tom Weber
2012, Open-File Report 2012-1229
At 0546 U.t.c. March 11, 2011, a Mw 9.0 ("great") earthquake occurred near the northeast coast of Honshu Island, Japan, generating a large tsunami that devastated the east coast of Japan and impacted many far-flung coastal sites around the Pacific Basin. After the earthquake, the Pacific Tsunami Warning Center issued...
Predicting sea-level rise vulnerability of terrestrial habitat and wildlife of the Northwestern Hawaiian Islands
Michelle H. Reynolds, Paul Berkowitz, Karen N. Courtot, Crystal M. Krause
Michelle H. Reynolds, Paul Berkowitz, Karen N. Courtot, Crystal M. Krause, editor(s)
2012, Open-File Report 2012-1182
If current climate change trends continue, rising sea levels may inundate low-lying islands across the globe, placing island biodiversity at risk. Recent models predict a rise of approximately one meter (1 m) in global sea level by 2100, with larger increases possible in areas of the Pacific Ocean. Pacific Islands...
Recently Active Traces of the Berryessa Fault, California: A Digital Database
James J. Lienkaemper
2012, Data Series 710
The purpose of this map is to show the location of and evidence for recent movement on active fault traces within the Berryessa section and parts of adjacent sections of the Green Valley Fault Zone, California. The location and recency of the mapped traces is primarily based on <a href="http://pubs.usgs.gov/ds/710/geomorph_fig.html"...
Upper Clear Creek watershed aquatic chemistry and biota surveys, 2004-5, Whiskeytown National Recreation Area, Shasta County, California
Marissa L. Wulff, Jason T. May, Larry R. Brown
2012, Open-File Report 2012-1173
The U.S. Geological Survey, in cooperation with the National Park Service and Whiskeytown National Recreation Area, performed a comprehensive aquatic biota survey of the upper Clear Creek watershed, Shasta County, California, during 2004-5. Data collected in this study can provide resource managers with information regarding aquatic resources, watershed degradation, and...
The United States National Climate Assessment - Alaska Technical Regional Report
Carl J. Markon, Sarah F. Trainor, F. Stuart Chapin III
Carl J. Markon, Sarah F. Trainor, F. Stuart Chapin III, editor(s)
2012, Circular 1379
The Alaskan landscape is changing, both in terms of effects of human activities as a consequence of increased population, social and economic development and their effects on the local and broad landscape; and those effects that accompany naturally occurring hazards such as volcanic eruptions, earthquakes, and tsunamis. Some of the...
