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...
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....
Petrology and chemistry of the Green Acres gabbro complex near Winchester, Riverside County, California
Byron R. Berger
Douglas M. Morton, Fred K. Miller, editor(s)
2014, Book chapter, Peninsular Ranges Batholith, Baja California and Southern California
The Cretaceous Green Acres layered igneous complex, northeast of Winchester, California, is composed of a suite of olivine- and hornblende-bearing gabbros in the Peninsular Ranges batholith within the Perris tectonic block. A consistent mineral assemblage is observed throughout the complex, but there is considerable textural and modal heterogeneity. Both preclude...
North American Commission on Stratigraphic Nomenclature Note 66: records of Stratigraphic Commission, 2003-2013
Robert M. Easton, Octavian Catuneanu, Art D. Donovan, Richard H. Fluegeman, A.P. Hamblin, Howard Harper, Norman P. Lasca, Jared R. Morrow, Randall C. Orndorff, Peter Sadler, Robert W. Scott, Berry H. Tew
2014, Stratigraphy (11) 143-157
Note 66 summarizes activities of the North American Commission on Stratigraphic Nomenclature (NACSN) from November 2003 to October 2013 and is condensed from the minutes of the NACSN’s 58th to 68th annual meetings1. The purposes of the Commission are to develop statements of stratigraphic principles,recommend procedures applicable to the classification...
An ecological response model for the Cache la Poudre River through Fort Collins
Jennifer Shanahan, Daniel Baker, Brian P. Bledsoe, LeRoy Poff, David M. Merritt, Kevin R. Bestgen, Gregor T. Auble, Boris C. Kondratieff, John Stokes, Mark Lorie, John Sanderson
2014, Report
The Poudre River Ecological Response Model (ERM) is a collaborative effort initiated by the City of Fort Collins and a team of nine river scientists to provide the City with a tool to improve its understanding of the past, present, and likely future conditions of the Cache la Poudre River...
Projecting future grassland productivity to assess thesustainability of potential biofuel feedstock areas in theGreater Platte River Basin
Yingxin Gu, Bruce K. Wylie, Stephen P. Boyte, Khem P. Phuyal
2014, GCB Bioenergy (6) 35-43
This study projects future (e.g., 2050 and 2099) grassland productivities in the Greater Platte River Basin (GPRB) using ecosystem performance (EP, a surrogate for measuring ecosystem productivity) models and future climate projections. The EP models developed from a previous study were based on the satellite vegetation index, site geophysical and...
Stratigraphy, structure and regional correlation of eastern Blue Ridge sequences in southern Virginia and northwestern North Carolina: an interim report from new USGS mapping
Mark W. Carter, Arthur J. Merschat
2014, GSA Field Guides (35) 215-241
Examination of key outcrops in the eastern Blue Ridge in southern Virginia and northwestern North Carolina is used to evaluate existing stratigraphic and structural models. Recent detailed mapping along the Blue Ridge Parkway and the eastern flank of the Mount Rogers massif provides the opportunity to (1) evaluate legacy...
Modeling structured population dynamics using data from unmarked individuals
Evan H. Campbell Grant, Elise Zipkin, James T. Thorson, Kevin See, Heather J. Lynch, Yoichiro Kanno, Richard Chandler, Benjamin H. Letcher, J. Andrew Royle
2014, Ecology (95) 22-29
The study of population dynamics requires unbiased, precise estimates of abundance and vital rates that account for the demographic structure inherent in all wildlife and plant populations. Traditionally, these estimates have only been available through approaches that rely on intensive mark–recapture data. We extended recently developed N-mixture models to demonstrate how...
Metals, organic compounds, and nutrients in Long Island Sound: sources, magnitudes, trends, and impacts
John R. Mullaney, J.C. Varekamp, A.E. MCElroy, V.T. Brsslin
2014, Book chapter, Long Island Sound
Long Island Sound (LIS) is a relatively shallow estuary with a mean depth of 20 m (maximum depth 49 m) and a unique hydrology and history of pollutant loading. Those factors have contributed to a wide variety of contamination problems in its muddy sediments, aquatic life and water column....
ARkStorm@Tahoe: Stakeholder perspectives on vulnerabilities and preparedness for an extreme storm event in the greater Lake Tahoe, Reno, and Carson City region
Christine M. Albano, Dale A. Cox, Michael D. Dettinger, Kevin Shaller, Toby L. Welborn, Maureen McCarthy
2014, Report
Atmospheric rivers (ARs) are strongly linked to extreme winter precipitation events in the Western U.S., accounting for 80 percent of extreme floods in the Sierra Nevada and surrounding lowlands. In 2010, the U.S. Geological Survey developed the ARkStorm extreme storm scenario for California to quantify risks from extreme winter storms...
Stream water temperature limits occupancy of salamanders in mid-Atlantic protected areas
Evan H. Campbell Grant, Amber N. M. Wiewel, Karen C. Rice
2014, Journal of Herpetology (48) 45-50
Stream ecosystems are particularly sensitive to urbanization, and tolerance of water-quality parameters is likely important to population persistence of stream salamanders. Forecasted climate and landscape changes may lead to significant changes in stream flow, chemical composition, and temperatures in coming decades. Protected areas where landscape alterations are minimized will therefore...
The environmental geochemistry of Arsenic – An overview
Robert J. Bowell, Charles N. Alpers, Heather E. Jamieson, D. Kirk Nordstrom, Juraj Majzlan
2014, Reviews in Mineralogy and Geochemistry (79) 1-16
Arsenic is one of the most prevalent toxic elements in the environment. The toxicity, mobility, and fate of arsenic in the environment are determined by a complex series of controls dependent on mineralogy, chemical speciation, and biological processes. The element was first described by Theophrastus in 300 B.C. and named...
Preface
Robert J. Bowell, Charles N. Alpers, Heather E. Jamieson, D. Kirk Nordstrom, Juraj Majzlan
2014, Reviews in Mineralogy and Geochemistry (79) iii-v
Arsenic is perhaps history’s favorite poison, often termed the “King of Poisons” and the “Poison of Kings” and thought to be the demise of fiction’s most famous ill-fated lovers. The toxic nature of arsenic has been known for millennia with the mineral realgar (AsS), originally named “arsenikon” by Theophrastus in...
Mapping advanced argillic alteration at Cuprite, Nevada, using imaging spectroscopy
Gregg A. Swayze, Roger N. Clark, Alexander F.H. Goetz, K. Eric Livo, George N. Breit, Fred A. Kruse, Stephen J. Sutley, Lawrence W. Snee, Heather A. Lowers, James L. Post, Roger E. Stoffregen, Roger P. Ashley
2014, Economic Geology (109) 1179-1221
Mineral maps based on Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) data were used to study late Miocene advanced argillic alteration at Cuprite, Nevada. Distributions of Fe-bearing minerals, clays, micas, sulfates, and carbonates were mapped using the Tetracorder spectral-shape matching system. The Al content of white micas increases toward altered areas and...
Finding that academic position
David W. Willis, Daniel A. Isermann
William W. Taylor, Abigail J. Lynch, Nancy J. Leonard, editor(s)
2014, Book chapter, Future of fisheries: Perspectives for emerging professionals
No abstract available....
Population demographics and life history of the round hickorynut (Obovaria subrotunda) in the Duck River, Tennessee
Chase Ehlo, James B. Layzer
2014, American Midland Naturalist (171) 1-15
Population characteristics and life history aspects of healthy mussel populations are poorly understood. The reproductive cycle, age and growth, and population structure of Obovaria subrotunda were examined at four sites in the middle Duck River, Tennessee. Obovaria subrotunda was confirmed to be a bradytictic species, spawning in the late summer and holding glochidia in...
Observations from borehole dilution logging experiments in fractured crystalline rock under variable hydraulic conditions
Philip T. Harte, J. Alton Anderson, John Williams
2014, Conference Paper, Symposium on the application of geophysics to engineering and environmental problems 2014
Identifying hydraulically active fractures in low permeability, crystalline-bedrock aquifers requires a variety of geophysical and hydrogeophysical borehole tools and approaches. One such approach is Single Borehole Dilution Tests (SBDT), which in some low flow cases have been shown to provide greater resolution of borehole flow than other logging procedures, such...
Predicting the spatial extent of liquefaction from geospatial and earthquake specific parameters
Jing Zhu, Laurie G. Baise, Eric M. Thompson, David J. Wald, Keith L. Knudsen
George Deodatis, Bruce R. Ellingwood, Dan M. Frangopol, editor(s)
2014, Conference Paper, Safety, reliability, risk and life-cycle performance of structures and infrastructures: Proceedings of the 11th international conference on structural safety and reliability
The spatially extensive damage from the 2010-2011 Christchurch, New Zealand earthquake events are a reminder of the need for liquefaction hazard maps for anticipating damage from future earthquakes. Liquefaction hazard mapping as traditionally relied on detailed geologic mapping and expensive site studies. These traditional techniques are difficult to apply globally...
Water quality monitoring protocol for wadeable streams and rivers in the Northern Great Plains Network
Marcia H. Wilson, Barbara L. Rowe, Robert A. Gitzen, Stephen K. Wilson, Kara J. Paintner-Green
2014, Natural Resource Report NPS/NGPN/NRR—2014/868
Preserving the national parks unimpaired for the enjoyment of future generations is a fundamental purpose of the National Park Service (NPS). To address growing concerns regarding the overall physical, chemical, and biological elements and processes of park ecosystems, the NPS implemented science-based management through “Vital Signs” monitoring in 270 national...
Development and characterization of 12 microsatellite markers for the Island Night Lizard (Xantusia riversiana), a threatened species endemic to the Channel Islands, California, USA
Ryan P. O’Donnell, Charles A. Drost, Karen E. Mock
2014, Conservation Genetics Resources (6) 699-700
The Island Night Lizard is a federally threatened species endemic to the Channel Islands of California. Twelve microsatellite loci were developed for use in this species and screened in 197 individuals from across San Nicolas Island, California. The number of alleles per locus ranged from 6 to 21. Observed heterozygosities...
Summary of preliminary step-trend analysis from the Interagency Whitebark Pine Long-termMonitoring Program—2004-2013
Kristin Legg, Erin Shanahan, Rob Daley, Kathryn M. Irvine
2014, Natural Resource Data Series NPS/GRYN/NRDS—2014/600
In mixed and dominant stands, whitebark pine (Pinus albicaulis) occurs in over two million acres within the six national forests and two national parks that comprise the Greater Yellowstone Ecosystem (GYE). Currently, whitebark pine, an ecologically important species, is impacted by multiple ecological disturbances; white pine blister rust (Cronartium ribicola),...
Statistical assessment on a combined analysis of GRYN-ROMN-UCBN upland vegetation vital signs
Kathryn M. Irvine, Thomas J. Rodhouse
2014, Natural Resource Report NPS/UCBN/NRR—2014/855
As of 2013, Rocky Mountain and Upper Columbia Basin Inventory and Monitoring Networks have multiple years of vegetation data and Greater Yellowstone Network has three years of vegetation data and monitoring is ongoing in all three networks. Our primary objective is to assess whether a combined analysis of these data...
The impact of climate and reservoirs on longitudinal riverine carbon fluxes from two major watersheds in the Central and Intermontane West
Sarah M. Stackpoole, Edward G. Stets, Robert G. Striegl
2014, Journal of Geophysical Research: Biogeosciences (119) 848-863
A nested sampling network on the Colorado (CR) and Missouri Rivers (MR) provided data to assess impacts of large-scale reservoir systems and climate on carbon export. The Load Estimator (LOADEST) model was used to estimate both dissolved inorganic and organic carbon (DIC and DOC) fluxes for a total of 22...
Arsenic speciation and sorption in natural environments
Kate M. Campbell, D. Kirk Nordstrom
2014, Reviews in Mineralogy and Geochemistry (79) 185-216
Aqueous arsenic speciation, or the chemical forms in which arsenic exists in water, is a challenging, interesting, and complicated aspect of environmental arsenic geochemistry. Arsenic has the ability to form a wide range of chemical bonds with carbon, oxygen, hydrogen, and sulfur, resulting in a large variety of compounds that...
Waterfowl in Cuba: Current status and distribution
Pedro Blanco Rodriquez, Francisco Vilella, Barbara Sanchez Oria
2014, Wildfowl (4) 498-511
Cuba and its satellite islands represent the largest landmass in the Caribbean archipelago and a major repository of the region’s biodiversity. Approximately 13.4% of the Cuban territory is covered by wetlands, encompassing approximately 1.48 million ha which includes mangroves, flooded savannas, peatlands, freshwater swamp forests and various types of managed wetlands. Here, we synthesise...
