Fish and land use influence Gammarus lacustris and Hyalella azteca (Amphipoda) densities in large wetlands across the upper Midwest
Michael J. Anteau, Alan D. Afton, Andrea C.E. Anteau, E. Barry Moser
2011, Hydrobiologia (664) 69-80
Gammarus lacustris and Hyalella azteca (hereafter G. lacustris and H. azteca, respectively) are important components of secondary production in wetlands and shallow lakes of the upper Midwest, USA. Within the past 50 years, amphipod densities have decreased while occurrences of fish and intensity of agricultural land use have increased...
Evaluating spawning migration patterns and predicting spawning success of shovelnose sturgeon in the Lower Missouri River
M. L. Wildhaber, S. H. Holan, G. M. Davis, D. W. Gladish, A. J. DeLonay, D. M. Papoulias, D. K. Sommerhauser
2011, Journal of Applied Ichthyology (27) 301-308
Approaches using telemetry, precise reproductive assessments, and surgically implanted data storage tags (DSTs) were used in combination with novel applications of analytical techniques for fish movement studies to describe patterns in migratory behavior and predict spawning success of gravid shovelnose sturgeon. From 2004 to 2007, over 300 gravid female shovelnose...
Discussion of Near-Transducer Errors in ADCP Measurements: Experimental Findings by Marian Muste, Dongsu Kim, and Juan A Gonzalez-Castro
David S. Mueller, Kevin A. Oberg
2011, Journal of Hydraulic Engineering (137) 863-866
Experimental challenge and pathology of highly pathogenic avian influenza virus H5N1 in dunlin (Calidris alpina), an intercontinental migrant shorebird species
Jeffrey S. Hall, J. Christian Franson, Robert E. Gill Jr., Carol U. Meteyer, Joshua L. TeSlaa, Sean W. Nashold, Robert J. Dusek, S. Ip
2011, Influenza and Other Respiratory Viruses (5) 365-372
Background Shorebirds (Charadriiformes) are considered one of the primary reservoirs of avian influenza. Because these species are highly migratory, there is concern that infected shorebirds may be a mechanism by which highly pathogenic avian influenza virus (HPAIV) H5N1 could be introduced into North America from Asia. Large numbers of dunlin...
Evidence of qualitative differences between soil-occupancy effects of invasive vs. native grassland plant species
Nicholas R. Jordan, Diane L. Larson, Sheri C. Huerd
2011, Invasive Plant Science and Management (4) 11-21
Diversified grasslands that contain native plant species are being recognized as important elements of agricultural landscapes and for production of biofuel feedstocks as well as a variety of other ecosystem services. Unfortunately, establishment of such grasslands is often difficult, unpredictable, and highly vulnerable to interference and invasion by weeds. Evidence...
Seasonal flows on warm Martian slopes
Alfred S. McEwen, Lujendra Ojha, Colin M. Dundas, Sarah S. Mattson, Shane Byrne, James J. Wray, Selby C. Cull, Scott L. Murchie, Nicolas Thomas, Virginia C. Gulick
2011, Science (333) 740-743
Water probably flowed across ancient Mars, but whether it ever exists as a liquid on the surface today remains debatable. Recurring slope lineae (RSL) are narrow (0.5 to 5 meters), relatively dark markings on steep (25° to 40°) slopes; repeat images from the Mars Reconnaissance Orbiter High Resolution Imaging Science...
Evidence and implications of recent and projected climate change in Alaska's forest ecosystems
Jane M. Wolken, Teresa N. Hollingsworth, T. Scott Rupp, Stuart Chapin, Sarah F. Trainor, Tara M. Barrett, Patrick F. Sullivan, A. David McGuire, Eugénie S. Euskirchen, Paul E. Hennon, Erik A. Beever, Jeff S. Conn, Lisa K. Crone, David V. D’Amore, Nancy Fresco, Thomas A. Hanley, Knut Kielland, James J. Kruse, Trista Patterson, Edward A.G. Schuur, David L. Verbyla, John Yarie
2011, Ecosphere (2) 1-35
The structure and function of Alaska's forests have changed significantly in response to a changing climate, including alterations in species composition and climate feedbacks (e.g., carbon, radiation budgets) that have important regional societal consequences and human feedbacks to forest ecosystems. In this paper we present the first comprehensive synthesis of...
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...
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...
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...
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...
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...
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...
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....
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
