Transcriptomic effects-based monitoring for endocrine active chemicals: Assessing relative contribution of treated wastewater to downstream pollution
Dalma Martinovic-Weigelt, Alvine C. Mehinto, Gerald T. Ankley, Nancy D. Denslow, Larry B. Barber, Kathy Lee, Ryan J. King, Heiko L. Schoenfuss, Anthony L. Schroeder, Daniel L. Villeneuve
2014, Environmental Science & Technology (48) 2385-2394
The present study investigated whether a combination of targeted analytical chemistry information with unsupervised, data-rich biological methodology (i.e., transcriptomics) could be utilized to evaluate relative contributions of wastewater treatment plant (WWTP) effluents to biological effects. The effects of WWTP effluents on fish exposed to ambient, receiving waters were studied at...
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...
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...
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...
Two approaches for incorporating climate change into natural resource management planning at Wind Cave National Park
Amy J. Symstad, Andrew J. Long, John Stamm, David A. King, Dominque M. Bachelet, Parker A. Norton
2014, Report
Wind Cave National Park (WICA) protects one of the world’s longest caves, has large amounts of high quality, native vegetation, and hosts a genetically important bison herd. The park’s relatively small size and unique purpose within its landscape requires hands-on management of these and other natural resources, all of which...
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...
Using spatial resampling to assess redd count survey length requirements for Pacific Lamprey
M.P. Mayfield, L. D. Schultz, Lance A. Wyss, M.E. Colvin, Carl B. Schreck
2014, North American Journal of Fisheries Management (34) 923-931
Pacific Lamprey Entosphenus tridentatus has declined across its range along the West Coast of North America, and an understanding of all life history phases is needed to address population recovery. Spawning surveys (redd counts) are common tools currently used to monitor returning adult salmonids, but such methodologies are in their infancy for...
A design for a sustained assessment of climate forcings and feedbacks on land use land cover change
Thomas Loveland, Rezaul Mahmood
2014, Bulletin of the American Meteorological Society (95) 1563-1572
Land use and land cover change (LULCC) significantly influences the climate system. Hence, to prepare the nation for future climate change and variability, a sustained assessment of LULCC and its climatic impacts needs to be undertaken. To address this objective, not only do we need to determine contemporary trends in...
The curved 14C vs. δ13C relationship in dissolved inorganic carbon: A useful tool for groundwater age- and geochemical interpretations
Liang-Feng Han, Niel Plummer, Pradeep Aggarwal
2014, Chemical Geology (387) 111-125
Determination of the 14C content of dissolved inorganic carbon (DIC) is useful for dating of groundwater. However, in addition to radioactive decay, the 14C content in DIC (14CDIC) can be affected by many geochemical and physical processes and numerous models have been proposed to refine radiocarbon ages of DIC in...
Correlations in distribution and concentration of calcium, copper and iron with zinc in isolated extracellular deposits associated with age-related macular degeneration
Jane M Flinn, Peter Kakalec, Ryan Tappero, Blair F. Jones, Imre Lengyel
2014, Metallomics (6) 1223-1228
Zinc (Zn) is abundantly enriched in sub-retinal pigment epithelial (RPE) deposits, the hallmarks of age-related macular degeneration (AMD), and is thought to play a role in the formation of these deposits. However, it is not known whether Zn is the only metal relevant for sub-RPE deposit formation. Because of their...
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...
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...
Normative standards for land use in Vermont: Implications for biodiversity
Charles A. Bettigole, Therese M. Donovan, Robert Manning, John Austin
2014, Biological Conservation (169) 392-400
The conversion of natural lands to developed uses poses a great threat to global terrestrial biodiversity. Natural resource managers, tasked with managing wildlife as a public trust, require techniques for predicting how much and where wildlife habitat is likely to be converted in the future. Here, we develop a methodology to estimate the “social carrying...
Geophysical investigations of the geologic and hydrothermal framework of the Pilgrim Springs Geothermal Area, Alaska
Jonathan M.G. Glen, Darcy McPhee, Paul A. Bedrosian
2014, Conference Paper, Proceedings, Thirty-Ninth Workshop on Geothermal Reservoir Engineering
Pilgrim Hot Springs, located on the Seward Peninsula in west-central Alaska, is characterized by hot springs, surrounding thawed regions, and elevated lake temperatures. The area is of interest because of its potential for providing renewable energy for Nome and nearby rural communities. We performed ground and airborne geophysical investigations of...
Detecting emergence, growth, and senescence of wetland vegetation with polarimetric synthetic aperture radar (SAR) data
Alisa L. Gallant, Shannon G. Kaya, Lori White, Brian Brisco, Mark F. Roth, Walter J. Sadinski, Jennifer Rover
2014, Water (6) 694-722
Wetlands provide ecosystem goods and services vitally important to humans. Land managers and policymakers working to conserve wetlands require regularly updated information on the statuses of wetlands across the landscape. However, wetlands are challenging to map remotely with high accuracy and consistency. We investigated the use of multitemporal polarimetric synthetic...
Evapotranspiration variability and its association with vegetation dynamics in the Nile Basin, 2002–2011
Henok Alemu, Gabriel B. Senay, Armel T. Kaptue, Valeriy Kovalskyy
2014, Remote Sensing (6) 5885-5908
Evapotranspiration (ET) is a vital component in land-atmosphere interactions. In drylands, over 90% of annual rainfall evaporates. The Nile Basin in Africa is about 42% dryland in a region experiencing rapid population growth and development. The relationship of ET with climate, vegetation and land cover in the basin during 2002–2011...
Spatio-temporal patterns and climate variables controlling of biomass carbon stock of global grassland ecosystems from 1982 to 2006
Jiangzhou Xia, Shuguang Liu, Shunlin Liang, Yang Chen, Wenfang Xu, Wenping Yuan
2014, Remote Sensing (6) 1783-1802
Grassland ecosystems play an important role in subsistence agriculture and the global carbon cycle. However, the global spatio-temporal patterns and environmental controls of grassland biomass are not well quantified and understood. The goal of this study was to estimate the spatial and temporal patterns of the global grassland biomass and...
Earth observation based assessment of the water production and water consumption of Nile Basin agro-ecosystems
Wim Bastiaanssen, Poolad Karimi, Lisa-Maria Rebelo, Zheng Duan, Gabriel B. Senay, Lal Muthuwatte, Vladimir Smakhtin
2014, Remote Sensing (6) 10306-10334
The increasing competition for water resources requires a better understanding of flows, fluxes, stocks, and the services and benefits related to water consumption. This paper explains how public domain Earth Observation data based on Moderate Resolution Imaging Spectroradiometer (MODIS), Second Generation Meteosat (MSG), Tropical Rainfall Measurement Mission (TRMM) and various...
Exchange of nitrogen and phosphorus between a shallow lagoon and coastal waters
Melanie Hayn, Robert W. Howarth, Neil K. Ganju, Peter Berg, Kenneth H. Foreman, Anne E. Giblin, Karen McGlathery
2014, Estuaries and Coasts (37) 63-73
West Falmouth Harbor, a shallow lagoon on Cape Cod, has experienced a threefold increase in nitrogen load since the mid- to late 1990s due to input from a groundwater plume contaminated by a municipal wastewater treatment plant. We measured the exchange of nitrogen and phosphorus between the harbor and the...
A geologic approach to field methods in fluvial geomorphology
Faith A. Fitzpatrick
Mary J Thornbush, Casey D Allen, Faith A. Fitzpatrick, editor(s)
2014, Book chapter, Geomorphological Fieldwork
A geologic approach to field methods in fluvial geomorphology is useful for understanding causes and consequences of past, present, and possible future perturbations in river behavior and floodplain dynamics. Field methods include characterizing river planform and morphology changes and floodplain sedimentary sequences over long periods of time along a longitudinal...
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,...
Bathymetric Terrain Model of the Puerto Rico Trench and the Northeastern Caribbean Region for Marine Geological Investigations
Brian D. Andrews, Uri S. ten Brink, William W. Danforth, Jason D. Chaytor, J Granja-Bruna, A Carbo-Gorosabel
2014, Open-File Report 2013-1125
Multibeam bathymetry data collected in the Puerto Rico Trench and Northeast Caribbean region are compiled into a seamless bathymetric terrain model for broad-scale geological investigations of the trench system. These data, collected during eight separate surveys between 2002 and 2013, covering almost 180,000 square kilometers are published here in large...
Quantifying spatial scaling patterns and their local and regional correlates in headwater streams: Implications for resilience
Emma Gothe, Leonard Sandin, Craig R. Allen, David G. Angeler
2014, Ecology and Society (19)
The distribution of functional traits within and across spatiotemporal scales has been used to quantify and infer the relative resilience across ecosystems. We use explicit spatial modeling to evaluate within- and cross-scale redundancy in headwater streams, an ecosystem type with a hierarchical and dendritic network structure. We assessed the cross-scale...
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...
