Temporal variation and scale in movement-based resource selection functions
M.B. Hooten, E.M. Hanks, D.S. Johnson, M.W. Alldredge
2013, Statistical Methodology (17) 82-98
A common population characteristic of interest in animal ecology studies pertains to the selection of resources. That is, given the resources available to animals, what do they ultimately choose to use? A variety of statistical approaches have been employed to examine this question and each has advantages and disadvantages with...
Spatial occupancy models for large data sets
Devin S. Johnson, Paul B. Conn, Mevin Hooten, Justina C. Ray, Bruce A. Pond
2013, Ecology (94) 801-808
Since its development, occupancy modeling has become a popular and useful tool for ecologists wishing to learn about the dynamics of species occurrence over time and space. Such models require presence–absence data to be collected at spatially indexed survey units. However, only recently have researchers recognized the need to correct...
Aggregation of carbon dioxide sequestration storage assessment units
Madalyn S. Blondes, John H. Schuenemeyer, Ricardo A. Olea, Lawrence J. Drew
2013, Stochastic Environmental Research and Risk Assessment (27) 1839-1859
The U.S. Geological Survey is currently conducting a national assessment of carbon dioxide (CO2) storage resources, mandated by the Energy Independence and Security Act of 2007. Pre-emission capture and storage of CO2 in subsurface saline formations is one potential method to reduce greenhouse gas emissions and the negative impact of...
A quantitative analysis of the state of knowledge of turtles of the United States and Canada
Jeffrey E. Lovich, Joshua R. Ennen
2013, Amphibia-Reptilia (34) 11-23
The “information age” ushered in an explosion of knowledge and access to knowledge that continues to revolutionize society. Knowledge about turtles, as measured by number of published papers, has been growing at an exponential rate since the early 1970s, a phenomenon mirrored in all scientific disciplines. Although knowledge about turtles,...
At-sea behavior varies with lunar phase in a nocturnal pelagic seabird, the swallow-tailed gull
Sebastian M. Cruz, Mevin Hooten, Kathryn P. Huyvaert, Carolina B. Proano, David J. Anderson, Vsevolod Afanasyev, Martin Wikelski
2013, PLoS ONE (8)
Strong and predictable environmental variability can reward flexible behaviors among animals. We used long-term records of activity data that cover several lunar cycles to investigate whether behavior at-sea of swallow-tailed gulls Creagrus furcatus, a nocturnal pelagic seabird, varied with lunar phase in the Galápagos Islands. A Bayesian hierarchical model showed...
Taming wildlife disease: bridging the gap between science and management
Maxwell B. Joseph, Joseph R. Mihaljevic, Ana Lisette Arellano, Jordan G. Kueneman, Paul C. Cross, Pieter T.J. Johnson
2013, Journal of Applied Ecology (50) 702-712
1.Parasites and pathogens of wildlife can threaten biodiversity, infect humans and domestic animals, and cause significant economic losses, providing incentives to manage wildlife diseases. Recent insights from disease ecology have helped transform our understanding of infectious disease dynamics and yielded new strategies to better manage wildlife diseases. Simultaneously, wildlife disease...
Inferential consequences of modeling rather than measuring snow accumulation in studies of animal ecology
Paul C. Cross, Robert W. Klaver, Angela Brennan, Scott Creel, Jon P. Beckmann, Megan D. Higgs, Brandon M. Scurlock
2013, Ecological Applications (23) 643-653
Abstract. It is increasingly common for studies of animal ecology to use model-based predictions of environmental variables as explanatory or predictor variables, even though model prediction uncertainty is typically unknown. To demonstrate the potential for misleading inferences when model predictions with error are used in place of direct measurements, we...
The continuum of hydroclimate variability in western North America during the last millennium
Toby R. Ault, Julia E. Cole, Jonathan T. Overpeck, Gregory T. Pederson, Scott St. George, Bette Otto-Bliesner, Connie A. Woodhouse, Clara Deser
2013, Journal of Climate (26) 5863-5878
The distribution of climatic variance across the frequency spectrum has substantial importance for anticipating how climate will evolve in the future. Here we estimate power spectra and power laws (ß) from instrumental, proxy, and climate model data to characterize the hydroclimate continuum in western North America (WNA). We test the...
A national streamflow network gap analysis
Julie E. Kiang, David W. Stewart, Stacey A. Archfield, Emily B. Osborne, Ken Eng
2013, Scientific Investigations Report 2013-5013
The U.S. Geological Survey (USGS) conducted a gap analysis to evaluate how well the USGS streamgage network meets a variety of needs, focusing on the ability to calculate various statistics at locations that have streamgages (gaged) and that do not have streamgages (ungaged). This report presents the results of analysis...
Geologic map of the Winslow 30’ × 60’ quadrangle, Coconino and Navajo Counties, northern Arizona
George H. Billingsley, Debra L. Block, Margaret Hiza Redsteer
2013, Scientific Investigations Map 3247
The Winslow 30’ × 60’ quadrangle encompasses approximately 5,018 km2 (1,960 mi2) within Coconino and Navajo Counties of northern Arizona. It is characterized by gently dipping Paleozoic and Mesozoic strata that dip 1° to 2° northeastward in the southwestern part of the quadrangle and become nearly flat-lying in the northeastern...
Reconnaissance geologic map of Kodiak Island and adjacent islands, Alaska
Frederic H. Wilson
2013, Scientific Investigations Map 2999
Kodiak Island and its adjacent islands, located on the west side of the Gulf of Alaska, contain one of the largest areas of exposure of the flysch and melange of the Chugach terrane of southern Alaska. However, in the past 25 years, only detailed mapping covering small areas in the...
Database for the Geologic Map of Newberry Volcano, Deschutes, Klamath, and Lake Counties, Oregon
Joseph A. Bard, David W. Ramsey, Norman S. MacLeod, David R. Sherrod, Lawrence A. Chitwood, Robert A. Jensen
2013, Data Series 771
Newberry Volcano, one of the largest Quaternary volcanoes in the conterminous United States, is a broad shield-shaped volcano measuring 60 km north-south by 30 km east-west with a maximum elevation of more than 2 km. Newberry Volcano is the product of deposits from thousands of eruptions, including at least 25...
The landfall and inland penetration of a flood-producing atmospheric river in Arizona. Part I: observed synoptic-scale, orographic, and hydrometeorological characteristics
Paul J. Neiman, F. Martin Ralph, Benjamin J. Moore, Mimi Hughes, Kelly M. Mahoney, Jason M. Cordeira, Michael D. Dettinger
2013, Journal of Hydrometeorology (14) 460-484
Atmospheric rivers (ARs) are a dominant mechanism for generating intense wintertime precipitation along the U.S. West Coast. While studies over the past 10 years have explored the impact of ARs in, and west of, California’s Sierra Nevada and the Pacific Northwest’s Cascade Mountains, their influence on the weather across the...
Age-specific survival of tundra swans on the lower Alaska Peninsula
Brandt W. Meixell, Mark S. Lindberg, Paul B. Conn, Christian P. Dau, John E. Sarvis, Kristine M. Sowl
2013, The Condor (115) 280-289
The population of Tundra Swans (Cygnus columbianus columbianus) breeding on the lower Alaska Peninsula represents the southern extremity of the species' range and is uniquely nonmigratory. We used data on recaptures, resightings, and recoveries of neck-collared Tundra Swans on the lower Alaska Peninsula to estimate collar loss, annual apparent survival,...
Estimating thermal regimes of bull trout and assessing the potential effects of climate warming on critical habitats
Leslie A. Jones, Clint C. Muhlfeld, Lucy A. Marshall, Brian L. McGlynn, Jeffrey L. Kershner
2013, River Research and Applications (30) 204-216
Understanding the vulnerability of aquatic species and habitats under climate change is critical for conservation and management of freshwater systems. Climate warming is predicted to increase water temperatures in freshwater ecosystems worldwide, yet few studies have developed spatially explicit modelling tools for understanding the potential impacts. We parameterized a nonspatial...
Use of exposure history to identify patterns of immunity to pneumonia in bighorn sheep (Ovis canadensis)
Raina K. Plowright, Kezia Manlove, E. Frances Cassirer, Thomas H. Besser, Peter J. Hudson
2013, PLoS ONE (8)
Individual host immune responses to infectious agents drive epidemic behavior and are therefore central to understanding and controlling infectious diseases. However, important features of individual immune responses, such as the strength and longevity of immunity, can be challenging to characterize, particularly if they cannot be replicated or controlled in captive...
Circuit theory and model-based inference for landscape connectivity
Ephraim M. Hanks, Mevin Hooten
2013, Journal of the American Statistical Association (108) 22-33
Circuit theory has seen extensive recent use in the field of ecology, where it is often applied to study functional connectivity. The landscape is typically represented by a network of nodes and resistors, with the resistance between nodes a function of landscape characteristics. The effective distance between two locations on...
The ancient blue oak woodlands of California: longevity and hydroclimatic history
D.W. Stahle, R.D. Griffin, D.M. Meko, M.D. Therrell, J.R. Edmondson, M.K. Cleaveland, D.J. Burnette, J.T. Abatzoglou, K.T. Redmond, M. D. Dettinger, D.R. Cayan
2013, Earth Interactions (17) 1-23
Ancient blue oak trees are still widespread across the foothills of the Coast Ranges, Cascades, and Sierra Nevada in California. The most extensive tracts of intact old-growth blue oak woodland appear to survive on rugged and remote terrain in the south Coast Ranges and on the foothills west and southwest...
Variation in body mass dynamics among sites in Black Brant Branta bernicla nigricans supports adaptivity of mass loss during moult
Thomas F. Fondell, Paul L. Flint, Joel A. Schmutz, Jason L. Schamber, Christopher A. Nicolai
2013, Ibis (155) 593-604
Birds employ varying strategies to accommodate the energetic demands of moult, one important example being changes in body mass. To understand better their physiological and ecological significance, we tested three hypotheses concerning body mass dynamics during moult. We studied Black Brant in 2006 and 2007 moulting at three sites in...
Concentration, flux, and the analysis of trends of total and dissolved phosphorus, total nitrogen, and chloride in 18 tributaries to Lake Champlain, Vermont and New York, 1990–2011
Laura Medalie
2013, Scientific Investigations Report 2013-5021
Annual concentration, flux, and yield for total phosphorus, dissolved phosphorus, total nitrogen, and chloride for 18 tributaries to Lake Champlain were estimated for 1990 through 2011 using a weighted regression method based on time, tributary streamflows (discharges), and seasonal factors. The weighted regression method generated two series of daily estimates...
Influence of richness and seeding density on invasion resistance in experimental tallgrass prairie restorations
Kristine T. Nemec, Craig R. Allen, Christopher J. Helzer, David A. Wedin
2013, Ecological Restoration (31) 168-185
In recent years, agricultural producers and non-governmental organizations and agencies have restored thousands of hectares of cropland to grassland in the Great Plains of the United States. However, little is known about the relationships between richness and seeding density in these restorations and resistance to invasive plant species. We assessed...
One hundred and six years of population and community dynamics of Sonoran Desert Laboratory perennials
Susana Rodriguez-Buritica, Helen Raichle, Robert H. Webb, Raymond M. Turner, Larry Venable
2013, Ecological Archives (94) 976-976
This data set constitutes all information associated with the Spalding-Shreve permanent vegetation plots from 1906 through 2012, which is the longest-running plant monitoring program in the world. The program consists of detailed maps of all Sonoran Desert perennial plants in 30 permanent plots located on Tumamoc Hill, near Tucson, Arizona,...
Field trial of a pulsed limestone diversion well
Philip L. Sibrell, C. Denholm, Margaret Dunn
2013, Conference Paper, 2nd Wyoming reclamation and restoration symposium and 30th annual meeting of the American society of mining and reclamation: Reclamation across industries
The use of limestone diversion wells to treat acid mine drainage (AMD) is well-known, but in many cases, acid neutralization is not as complete as would be desired. Reasons for this include channeling of the water through the limestone bed, and the slow reaction rate of the limestone gravel. A...
In situ quantification of Br and Cl in minerals and fluid inclusions by LA-ICP-MS: a powerful tool to identify fluid sources
Johannes Hammerli, Brian Rusk, Carl Spandler, Poul Emsbo, Nicholas H.S. Oliver
2013, Chemical Geology (337-338) 75-87
Bromine and chlorine are important halogens for fluid source identification in the Earth's crust, but until recently we lacked routine analytical techniques to determine the concentration of these elements in situ on a micrometer scale in minerals and fluid inclusions. In this study, we evaluate the potential of in situ...
The 3D Elevation Program: summary for Wisconsin
William J. Carswell Jr.
2013, Fact Sheet 2013-3032
Elevation data are essential to a broad range of applications, including forest resources management, wildlife and habitat management, national security, recreation, and many others. For the State of Wisconsin, elevation data are critical for agriculture and precision farming, natural resources conservation, flood risk management, infrastructure and construction management, water supply...
