Utilizing multi-sensor fire detections to map fires in the United States
Stephen M. Howard, Joshua J. Picotte, Michael Coan
2014, Conference Paper, The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XL-1,
In 2006, the Monitoring Trends in Burn Severity (MTBS) project began a cooperative effort between the US Forest Service (USFS) and the U.S.Geological Survey (USGS) to map and assess burn severity all large fires that have occurred in the United States since 1984. Using Landsat imagery, MTBS is mandated to...
Captive propagation, reproductive biology, and early life history of the Diamond Darter (Crystallaria cincotta)
Crystal L. Ruble, Patrick L. Rakes, John R. Shute, Stuart A. Welsh
2014, American Midland Naturalist (172) 107-118
Reproductive biology and early life history data are critical for the conservation and management of rare fishes. During 2008–2012 a captive propagation study was conducted on the Diamond Darter, Crystallaria cincotta, a rare species with a single extant population in the lower Elk River, West Virginia. Water temperatures during spawning ranged...
Carcass analog provides marine subsidies for macroinvertebrates and juvenile Atlantic 8 salmon in temperate oligotrophic streams
Margaret Q. Guyette, Cynthia S. Loftin, Joseph D. Zydlewski, Richard Cunjak
2014, Freshwater Biology (59) 392-406
Anadromous fish populations entering freshwater ecosystems provide organic matter and marine-derived nutrients during spawning and subsequent mortalities of adults. Dams and other impediments to connectivity in rivers and streams have affected anadromous fish populations in many regions and prevented or reduced this influx of organic materials and...
Self-confidence of anglers in identification of freshwater sport fish
C.J. Chizinski, D. R. Martin, Kevin L. Pope
2014, Fisheries Management and Ecology (21) 448-453
Although several studies have focused on how well anglers identify species using replicas and pictures, there has been no study assessing the confidence that can be placed in angler's ability to identify recreationally important fish. Understanding factors associated with low self-confidence will be useful in tailoring education programmes to improve...
Delineation of Tundra Swan Cygnus c. columbianus populations in North America: geographic boundaries and interchange
Craig R. Ely, William J.L. Sladen, Heather M. Wilson, Susan E. Savage, Kristine M. Sowl, Bill Henry, Mike Schwitters, James Snowden
2014, Wildfowl (64) 132-147
North American Tundra Swans Cygnus c. columbianus are composed of two wellrecognised populations: an Eastern Population (EP) that breeds across northern Canada and north of the Brooks Range in Alaska, which migrates to the eastern seaboard of the United States, and a Western Population (WP) that breeds in coastal regions of Alaska south of the Brooks...
Multielevation calibration of frequency-domain electromagnetic data
Burke J. Minsley, M. Andy Kass, Greg Hodges, Bruce D. Smith
2014, Geophysics (79) E201-E216
Systematic calibration errors must be taken into account because they can substantially impact the accuracy of inverted subsurface resistivity models derived from frequency-domain electromagnetic data, resulting in potentially misleading interpretations. We have developed an approach that uses data acquired at multiple elevations over the same location to assess calibration errors....
Evaluation of statistically downscaled GCM output as input for hydrological and stream temperature simulation in the Apalachicola–Chattahoochee–Flint River Basin (1961–99)
Lauren E. Hay, Jacob H. LaFontaine, Steven L. Markstrom
2014, Earth Interactions (18) 1-32
The accuracy of statistically downscaled general circulation model (GCM) simulations of daily surface climate for historical conditions (1961–99) and the implications when they are used to drive hydrologic and stream temperature models were assessed for the Apalachicola–Chattahoochee–Flint River basin (ACFB). The ACFB is a 50 000 km2 basin located in the...
Distributed Evaluation of Local Sensitivity Analysis (DELSA), with application to hydrologic models
O. Rakovec, Mary C. Hill, M.P. Clark, A. H. Weerts, A. J. Teuling, R. Uijlenhoet
2014, Water Resources Research (50) 409-426
This paper presents a hybrid local-global sensitivity analysis method termed the Distributed Evaluation of Local Sensitivity Analysis (DELSA), which is used here to identify important and unimportant parameters and evaluate how model parameter importance changes as parameter values change. DELSA uses derivative-based “local” methods to obtain the distribution of parameter...
Effects of iron on optical properties of dissolved organic matter
Brett Poulin, Joseph N. Ryan, George R. Aiken
2014, Environmental Science & Technology (48) 10098-10106
Iron is a source of interference in the spectroscopic analysis of dissolved organic matter (DOM); however, its effects on commonly employed ultraviolet and visible (UV–vis) light adsorption and fluorescence measurements are poorly defined. Here, we describe the effects of iron(II) and iron(III) on the UV–vis absorption and fluorescence of solutions...
Incorporating detection probability into northern Great Plains pronghorn population estimates
Christopher N. Jacques, Jonathan A. Jenks, Troy W. Grovenburg, Robert W. Klaver, Christopher S. DePerno
2014, Journal of Wildlife Management (78) 164-174
Pronghorn (Antilocapra americana) abundances commonly are estimated using fixed-wing surveys, but these estimates are likely to be negatively biased because of violations of key assumptions underpinning line-transect methodology. Reducing bias and improving precision of abundance estimates through use of detection probability and mark-resight models may allow for more responsive pronghorn...
A new map of global ecological land units — An ecophysiographic stratification approach
Roger Sayre, Jack Dangermond, Charlie Frye, Randy Vaughan, Peter Aniello, Sean P. Breyer, Douglas Cribbs, Dabney Hopkins, Richard Nauman, William Derrenbacher, Dawn J. Wright, Clint Brown, Charles Convis, Jonathan H. Smith, Laurence Benson, D. Paco VanSistine, Harumi Warner, Jill Janene Cress, Jeffrey J. Danielson, Sharon L. Hamann, Thomas Cecere, Ashwan D. Reddy, Devon Burton, Andrea Grosse, Diane TRUE, Marc Metzger, Jens Hartmann, Nils Moosdorf, Hans Durr, Marc Paganini, Pierre Defourny, Olivier Arino, Simone Maynard, Mark Anderson, Patrick Comer
2014, Book
In response to the need and an intergovernmental commission for a high resolution and data-derived global ecosystem map, land surface elements of global ecological pattern were characterized in an ecophysiographic stratification of the planet. The stratification produced 3,923 terrestrial ecological land units (ELUs) at a base resolution of 250 meters....
Influence of variable rainbow smelt and gizzard shad abundance on walleye diets and growth
Mark J. Fincel, Daniel J. Dembkowski, Steven R. Chipps
2014, Lake and Reservoir Management (30) 258-267
Prey availability influences growth and condition of walleye (Sander vitreus) in large systems. In Lake Oahe, South Dakota, rainbow smelt (Osmerus mordax) and gizzard shad (Dorosoma cepedianum) are primary prey of walleye, but their abundance varies substantially year to year. To evaluate the influence of gizzard...
The temperature-productivity squeeze: Constraints on brook trout growth along an Appalachian river continuum
J. Todd Petty, David Thorne, Brock M. Huntsman, Patricia M. Mazik
2014, Hydrobiologia (727) 151-166
We tested the hypothesis that brook trout growth rates are controlled by a complex interaction of food availability, water temperature, and competitor density. We quantified trout diet, growth, and consumption in small headwater tributaries characterized as cold with low food and high trout density, larger tributaries characterized as cold with...
Response of reef corals on a fringing reef flat to elevated suspended-sediment concentrations: Moloka‘i, Hawai‘i
Paul L. Jokiel, Ku'ulei S. Rodgers, Curt D. Storlazzi, Michael E. Field, Claire V. Lager, Dan Lager
2014, PeerJ
A long-term (10 month exposure) experiment on effects of suspended sediment on the mortality, growth, and recruitment of the reef corals Montipora capitata and Porites compressa was conducted on the shallow reef flat off south Molokaʻi, Hawaiʻi. Corals were grown on wire platforms with attached coral recruitment tiles along a suspended solid concentration (SSC)...
Demography and behavior of polar bears summering on land in Alaska
Elizabeth L. Peacock
2014, Report
Polar bears (Ursus maritimus) in the southern Beaufort Sea population (SB) are spending increased time on the coastal North Slope of Alaska between July and October (Gleason and Rode 2010). The duration spent on land by polar bears, satellite collared on the sea-ice in the spring, during the summer and...
Identifying non-point sources of endocrine active compounds and their biological impacts in freshwater lakes
Beth H. Baker, Dalma Martinovic-Weigelt, Mark L. Ferrey, Larry B. Barber, Jeffrey H. Writer, Donald O. Rosenberry, Richard L. Kiesling, James R. Lundy, Heiko L. Schoenfuss
2014, Archives of Environmental Contamination and Toxicology (67) 374-388
Contaminants of emerging concern, particularly endocrine active compounds (EACs), have been identified as a threat to aquatic wildlife. However, little is known about the impact of EACs on lakes through groundwater from onsite wastewater treatment systems (OWTS). This study aims to identify specific contributions of OWTS to Sullivan Lake, Minnesota,...
Retirement investment theory explains patterns in songbird nest-site choice
Henry M. Streby, Jeanine M. Refsnider, Sean M. Peterson, David E. Andersen
2014, Proceedings of the Royal Society B: Biological Sciences (281)
When opposing evolutionary selection pressures act on a behavioural trait, the result is often stabilizing selection for an intermediate optimal phenotype, with deviations from the predicted optimum attributed to tracking a moving target, development of behavioural syndromes or shifts in riskiness over an individual's lifetime. We investigated nest-site choice by...
USGS48 Puerto Rico precipitation - A new isotopic reference material for δ2H and δ18O measurements of water
Haiping Qi, Tyler B. Coplen, Lauren V. Tarbox, Jennifer M. Lorenz, Martha A. Scholl
2014, Isotopes in Environmental and Health Studies (50) 442-447
A new secondary isotopic reference material has been prepared from Puerto Rico precipitation, which was filtered, homogenised, loaded into glass ampoules, sealed with a torch, autoclaved to eliminate biological activity, and calibrated by dual-inlet isotope-ratio mass spectrometry. This isotopic reference material, designated as USGS48, is intended to be one of...
Evidence of natural reproduction by Muskellunge in middle Tennessee rivers
Lila H. Warren, Phillip William Bettoli
2014, Southeastern Naturalist (13) 506-514
Native Esox masquinongy (Muskellunge) in the Cumberland River drainage, TN, were nearly extirpated in the 1970s due to decades of over-fishing and habitat degradation from coal mining, logging, and other land-use practices. In an effort to preserve the species in that drainage, a stocking program began in 1976 in the upper Caney...
Landscapes of Santa Rosa Island, Channel Islands National Park, California
R. Randall Schumann, Scott A. Minor, Daniel R. Muhs, Jeffery S. Pigati
2014, Book chapter, Monographs of the Western North American Naturalist
Santa Rosa Island (SRI) is the second-largest of the California Channel Islands. It is one of 4 east–west aligned islands forming the northern Channel Islands chain, and one of the 5 islands in Channel Islands National Park. The landforms, and collections of landforms called landscapes, of Santa Rosa Island have...
A comparison of resident fish assemblages in managed and unmanaged coastal wetlands in North Carolina and South Carolina
Kelly F. Robinson, Cecil A. Jennings
2014, Southeastern Naturalist (13) 237-260
The dominant fish species within impounded coastal wetlands in the southeastern US may be different from the species that dominate natural marshes. We tested the hypothesis that resident fish assemblages inhabiting impounded coastal wetlands in South Carolina would differ from resident assemblages in natural marshes of the southeastern United States....
Tsunami-generated sediment wave channels at Lake Tahoe, California-Nevada, USA
James G. Moore, Richard A. Schweickert, Christopher A. Kitts
2014, Geosphere (10) 757-768
A gigantic ∼12 km3 landslide detached from the west wall of Lake Tahoe (California-Nevada, USA), and slid 15 km east across the lake. The splash, or tsunami, from this landslide eroded Tioga-age moraines dated as 21 ka. Lake-bottom short piston cores recovered sediment as old as 12 ka that did not...
Arsenic associated with historical gold mining in the Sierra Nevada foothills: Case study and field trip guide for Empire Mine State Historic Park, California
Charles N. Alpers, Perry A Myers, Daniel Millsap, Tamsen B Regnier
Robert J. Bowell, Charles N. Alpers, Heather E. Jamieson, D. Kirk Nordstrom, Juraj Majzlan, editor(s)
2014, Reviews in Mineralogy and Geochemistry (79) 553-587
The Empire Mine, together with other mines in the Grass Valley mining district, produced at least 21.3 million troy ounces (663 tonnes) of gold (Au) during the 1850s through the 1950s, making it the most productive hardrock Au mining district in California history (Clark 1970). The Empire Mine...
Development of a multimetric index for fish assemblages in a cold tailwater in Tennessee
Tomas J. Ivasauskas, Phillip William Bettoli
2014, Transactions of the American Fisheries Society (143) 495-507
Tailwaters downstream of hypolimnetic-release hydropeaking dams exhibit a unique combination of stressors that affects the structure and function of resident fish assemblages. We developed a statistically and biologically defensible multimetric index of fish assemblages for the Caney Fork River below Center Hill Dam, Tennessee. Fish assemblages were sampled at five...
Productivity of functional guilds of fishes in managed wetlands in coastal South Carolina
Kelly F. Robinson, Cecil A. Jennings
2014, Journal of Fish and Wildlife Management (5) 70-86
In coastal South Carolina, many wetlands are impounded and managed as migratory waterfowl habitat. Impoundment effects on fish production and habitat quality largely are unknown. We used the size-frequency method to estimate summer production of fish guilds in three impoundments along the Combahee River, South Carolina. We predicted that guild-specific...
