Evaluation of influence of sediment on the sensitivity of a unionid mussel (Lamsilis silquoidea) to ammonia in 28-day water exposures
Ning Wang, Rebecca A. Consbrock, Christopher G. Ingersoll, M. Christopher Barnhart
2011, Environmental Toxicology and Chemistry (30) 2270-2276
A draft update of the U.S. Environmental Protection Agency ambient water quality criteria (AWQC) for ammonia substantially lowers the ammonia AWQC, primarily due to the inclusion of toxicity data for freshwater mussels. However, most of the mussel data used in the updated AWQC were generated from water-only exposures and limited...
Concentrations and bioaccessibility of metals in vegetation and dust near a mining haul road, Cape Krusenstern National Monument, Alaska
William G. Brumbaugh, Suzette A. Morman, Thomas W. May
2011, Environmental Monitoring and Assessment (182) 325-340
Vegetation, sub-surface peat, and road dust were sampled near the Delong Mountain Transportation System (DMTS) haul road in northwest Alaska in 2005-2006 to document aluminum, barium, cadmium, lead, and zinc concentrations, and to evaluate bioaccessibility of these metals. The DMTS haul road is the transport corridor between Red Dog Mine...
Habitat selection by female swift foxes (Vulpes velox) during the pup-rearing season
Indrani Sasmal, Jonathan A. Jenks, Troy W. Grovenburg, Shubham Datta, Greg M. Schroeder, Robert W. Klaver, Kevin M. Honness
2011, The Prairie Naturalist (43) 29-37
The swift fox (Vulpes velox) was historically distributed in western South Dakota including the region surrounding Badlands National Park (BNP). The species declined during the mid-1800s, largely due to habitat loss and poisoning targeted at wolves (Canis lupis) and coyotes (C. latrans). Only a small population of swift foxes near...
Behavioral, clinical, and pathological characterization of acid metalliferous water toxicity in mallards
John P. Isanhart, Hongmei Wu, Karamjeet Pandher, Russell K. MacRae, Stephen B. Cox, Michael J. Hooper
2011, Archives of Environmental Contamination and Toxicology (61) 653-667
From September to November 2000, United States Fish and Wildlife Service biologists investigated incidents involving 221 bird deaths at 3 mine sites located in New Mexico and Arizona. These bird deaths primarily involved passerine and waterfowl species and were assumed to be linked to consumption of acid metalliferous water (AMW)....
Multivariate analyses with end-member mixing to characterize groundwater flow: Wind Cave and associated aquifers
Andrew J. Long, Joshua F. Valder
2011, Journal of Hydrology (409) 315-327
Principal component analysis (PCA) applied to hydrochemical data has been used with end-member mixing to characterize groundwater flow to a limited extent, but aspects of this approach are unresolved. Previous similar approaches typically have assumed that the extreme-value samples identified by PCA represent end members. The method presented herein is...
Multiple applications of the U.S. EPA 1312 leach procedure to mine waste from the Animas watershed, SW Colorado
David L. Fey, Stan E. Church, Rhonda L. Driscoll, Monique G. Adams
2011, Geochemistry: Exploration, Environment, Analysis (11) 163-178
Eleven acid-sulphate and quartz-sericite-pyrite altered mine waste samples from the Animas River watershed in SW Colorado were subjected to a series of 5 to 6 successive leaches using the US EPA 1312 leach protocol to evaluate the transport of metals and loss of acidity from mine wastes as a function...
Multilevel eEmpirical Bayes modeling for improved estimation of toxicant formulations tosuppress parasitic sea lamprey in the Upper Great Lakes
Laura A. Hatfield, Steve Gutreuter, Michael A. Boogaard, Bradley P. Carlin
2011, Biometrics (67) 1153-1162
Estimation of extreme quantal-response statistics, such as the concentration required to kill 99.9% of test subjects (LC99.9), remains a challenge in the presence of multiple covariates and complex study designs. Accurate and precise estimates of the LC99.9 for mixtures of toxicants are critical to ongoing control of a parasitic invasive...
Stationarity: Wanted dead or alive?
Larry F. Lins, Timothy A. Cohn
2011, Journal of the American Water Resources Association (47) 475-480
Aligning engineering practice with natural process behavior would appear, on its face, to be a prudent and reasonable course of action. However, if we do not understand the long-term characteristics of hydroclimatic processes, how does one find the prudent and reasonable course needed for water management? We consider this question...
Developing Gyrfalcon surveys and monitoring for Alaska
Mark R. Fuller, Philip F. Schempf, Travis L. Booms
2011, Conference Paper, Gyrfalcons and Ptarmigan in a Changing World
We developed methods to monitor the status of Gyrfalcons in Alaska. Results of surveys and monitoring will be informative for resource managers and will be useful for studying potential changes in ecological communities of the high latitudes. We estimated that the probability of detecting a Gyrfalcon at an occupied nest...
Movement patterns of Bar-headed Geese Anser indicus during breeding and post-breeding periods at Qinghai Lake, China
Peng Cui, Yuansheng Hou, Mingjie Tang, Haiting Zhang, Yuanchun Zuohua, Zuohua Yin, Tianxian Li, Shan Guo, Zhi Xing, Yubang He, Diann J. Prosser, Scott H. Newman, John Y. Takekawa, Baoping Yan, Fumin Lei
2011, Journal of Ornithology (152) 83-92
The highly pathogenic avian influenza (HPAI) H5N1 outbreak at Qinghai Lake, China, in 2005 caused the death of over 6,000 migratory birds, half of which were Bar-headed Geese Anser indicus. Understanding the movements of this species may inform monitoring of outbreak risks for HPAI viruses; thus, we investigated the movement...
Mortality of American alligators attributed to cannibalism
Michael F. Delany, Allan R. Woodward, Richard A. Kiltie, Clinton T. Moore
2011, Herpetologica (67) 174-185
Mortality of juvenile (Alligator mississippiensis) attributed to cannibalism on Orange Lake, Florida was examined. Alligator web tags used in mark–recapture studies were found in 12% of 267 stomachs sampled from alligators ≥168 cm TL. Captive alligators retained 76% of force-fed tags during a...
Monitoring bald eagles using lists of nests: Response to Watts and Duerr
John R. Sauer, Mark C. Otto, William L. Kendall, Guthrie S. Zimmerman
2011, Journal of Wildlife Management (75) 509-512
The post-delisting monitoring plan for bald eagles (Haliaeetus leucocephalus) roposed use of a dual-frame sample design, in which sampling of known nest sites in combination with additional area-based sampling is used to estimate total number of nesting bald eagle pairs. Watts and Duerr (2010) used data from repeated observations of...
Modifications of traps to reduce bycatch of freshwater turtles
R. Bruce Bury
2011, Journal of Wildlife Management (75) 3-5
Mortality of freshwater turtles varies among types and deployments of traps. There are few or no losses in hoop or fyke traps set where turtles may reach air, including placement in shallows, addition of floats on traps, and tying traps securely to a stake or to shore. Turtle mortality occurs...
Movements of wolves at the northern extreme of the species' range, including during four months of darkness
L. David Mech, H. Dean Cluff
2011, PLoS ONE (6)-1
Information about wolf (Canis lupus) movements anywhere near the northern extreme of the species' range in the High Arctic (>75°N latitude) are lacking. There, wolves prey primarily on muskoxen (Ovibos moschatus) and must survive 4 months of 24 hr/day winter darkness and temperatures reaching -53 C. The extent to which...
Modules based on the geochemical model PHREEQC for use in scripting and programming languages
Scott R. Charlton, David L. Parkhurst
2011, Computers & Geosciences (37) 1653-1663
The geochemical model PHREEQC is capable of simulating a wide range of equilibrium reactions between water and minerals, ion exchangers, surface complexes, solid solutions, and gases. It also has a general kinetic formulation that allows modeling of nonequilibrium mineral dissolution and precipitation, microbial reactions, decomposition of organic compounds, and other...
Migration strategies of Swan Geese Anser cygnoides from northeast Mongolia
Nyambayar Batbayar, John Y. Takekawa, Scott H. Newman, Diann J. Prosser, Tseveenmyadag Natsagdorj, Xiangming Xiao
2011, Wildfowl (61) 90-109
In 2006–2008, 25 Swan Geese Anser cygnoides were marked with solar-powered GPS satellite transmitters in northeast Mongolia to examine the timing and pathways of their migration. Most geese began their autumn migration in August, flying southeast toward a staging area at the Yalu River Estuary on the China-North Korea border....
Methane hydrates and contemporary climate change
Carolyn D. Ruppel
2011, Nature Eduction Knowledge (2) 12
As the evidence for warming climate became better established in the latter part of the 20th century (IPCC 2001), some scientists raised the alarm that large quantities of methane (CH4) might be liberated by widespread destabilization of climate-sensitive gas hydrate deposits trapped in marine and permafrost-associated sediments (Bohannon 2008, Krey...
Mercury export from the Yukon River Basin and potential response to a changing climate
Paul F. Schuster, Robert G. Striegl, George R. Aiken, David P. Krabbenhoft, John F. DeWild, Kenna D. Butler, Ben Kamark, Mark Dornblaser
2011, Environmental Science & Technology (45) 9262-9267
We measured mercury (Hg) concentrations and calculated export and yield from the Yukon River Basin (YRB) to quantify Hg flux from a large, permafrost-dominated, high-latitude watershed. Exports of Hg averaged 4400 kg Hg yr-1. The average annual yield for the YRB during the study period was 5.17 μg m-2 yr-1,...
Kin encounter rate and inbreeding avoidance in canids
Eli Geffen, Michael Kam, Reuven Hefner, Pall Hersteinsson, Anders Angerbjorn, Love Dalen, Eva Fuglei, Karin Noren, Jennifer R. Adams, John Vicetich, Thomas J. Meier, L.D. Mech, Bridgett M. VonHoldt, Daniel R. Stahler, Robert K. Wayne
2011, Molecular Biology (20) 5348-5358
Mating with close kin can lead to inbreeding depression through the expression of recessive deleterious alleles and loss of heterozygosity. Mate selection may be affected by kin encounter rate, and inbreeding avoidance may not be uniform but associated with age and social system. Specifically, selection for kin recognition and inbreeding...
Half-dead colonies of Montastraea annularis release viable gametes on a degraded reef in the US Virgin Islands
Ilsa B. Kuffner, T. Don Hickey, Valerie J. Paul, Jennifer M. Morrison, Linda J. Walters, Katie R. Grablow, Teresa Turner, Edward R. Parish
2011, Bulletin of Marine Science (87) 855-856
How reservoirs alter drinking water quality: Organic matter sources, sinks, and transformations
Tamara E.C. Kraus, Brian A. Bergamaschi, Peter J. Hernes, Daniel H. Doctor, Carol Kendall, Bryan D. Downing, Richard F. Losee
2011, Lake and Reservoir Management (27) 205-219
Within reservoirs, production, transformation, and loss of dissolved organic matter (DOM) occur simultaneously. While the balance between production and loss determines whether a reservoir is a net sink or source of DOM, changes in chemical composition are also important because they affect DOM reactivity with respect to disinfection by-product (DBP)...
Impacts of invasive plants on Sandhill Crane (Grus canadensis) roosting habitat
Andrew C. Kessler, James W. Merchant, Craig R. Allen, Steven D. Shultz
2011, Invasive Plant Science and Management (4) 369-377
Invasive plants continue to spread in riparian ecosystems, causing both ecological and economic damage. This research investigated the impacts of common reed, purple loosestrife, riparian shrubland, and riparian woodlands on the quality and quantity of sandhill crane roosting habitat in the central Platte River, Nebraska, using a discrete choice model....
Is the model a misfit in Hawaii? The North American model in our most recent state
Christopher A. Lepczyk, Edwin D. Johnson, Steven C. Hess
2011, The Wildlife Professional (5) 64-67
Isolation and characterization of 21 polymorphic microsatellite loci in the Japanese dace (Tribolodon hakonensis)
Noriyuki Koizumi, Thomas W. Quinn, Myeongsoo Park, Jennifer A. Fike, Kazuya Nishida, Takeshi Takemura, Keiji Watabe, Atsushi Mori
2011, Conservation Genetics Resources (3) 565-567
Twenty one polymorphic microsatellite loci for the Japanese dace (Tribolodon hakonensis) were isolated and characterized. The number of observed alleles per locus in 32 individuals ranged from 3 to 30. The observed and expected heterozygosities ranged from 0.125 to 0.969 and from 0.175 to 0.973, respectively. All loci conformed to...
Hydrogeochemical processes governing the origin, transport and fate of major and trace elements from mine wastes and mineralized rock to surface waters
D. Kirk Nordstrom
2011, Applied Geochemistry (26) 1777-1791
The formation of acid mine drainage from metals extraction or natural acid rock drainage and its mixing with surface waters is a complex process that depends on petrology and mineralogy, structural geology, geomorphology, surface-water hydrology, hydrogeology, climatology, microbiology, chemistry, and mining and mineral processing history. The concentrations of metals, metalloids,...
