Landscape composition, patch size, and distance to edges: Interactions affecting duck reproductive success
David Joseph Horn, Michael L. Phillips, Rolf R. Koford, William R. Clark, Marsha A. Sovada, Raymond J. Greenwood
2005, Ecological Applications (15) 1367-1376
Prairies and other North American grasslands, although highly fragmented, provide breeding habitat for a diverse array of species, including species of tremendous economic and ecological importance. Conservation and management of these species requires some understanding of how reproductive success is affected by edge effects, patch size, and characteristics of the...
The impact of disease in the American white pelican in North America
Tonie E. Rocke, Kathryn A. Converse, Carol U. Meteyer, R. McLean
2005, Waterbirds (28) 87-94
Records of reported die-offs of the American White Pelican (Pelicanus erythrorhynchos) held by the U.S. Geological Survey National Wildlife Health Center from 1978 through 2003 indicate that type C botulism (caused by Clostridium botulinum) was the major cause of mortality. In 1996, over 15,000 birds, including 8,500 American White Pelicans,...
Efficacy of formalin and hydrogen peroxide to increase survival of channel catfish infected with saprolegniasis
Jeff J. Rach, Theresa M. Schreier, Mark P. Gaikowski, Susan M. Schleis
2005, North American Journal of Aquaculture (67) 312-318
The efficacy of formalin and hydrogen peroxide to increase survival associated with external saprolegniasis on fingerlings of channel catfish Ictalurus punctatus was evaluated in four laboratory trials. Fungal epizootics were initiated according to procedures developed in a fungal-disease model. Fish were abraded with a dremel tool and then placed in an aerated...
Preliminary analysis of strong-motion recordings from the 28 September 2004 Parkfield, California earthquake
Anthony Shakal, Vladimir Graizer, Moh Huang, Rodger D. Borcherdt, Hamid Haddadi, Kuo-Wan Lin, Christopher D. Stephens, P. Roffers
2005, Seismological Research Letters (76) 27-39
The 2004 Mw 6.0 Parkfield earthquake of 28 September 2004 occurred on the San Andreas Fault near the small town of Parkfield in central California. As a result of a widely accepted likelihood of an earthquake in the area, a large number of strong-motion stations and...
Eider females form non-kin brood-rearing coalitions
M. Ost, E. Vitikainen, P. Waldeck, L. Sundstrom, K. Lindstrom, Tuula E. Hollmen, J. Christian Franson, Mikaei Kilpi
2005, Molecular Ecology (14) 3903-3908
Kin selection is a powerful tool for understanding cooperation among individuals, yet its role as the sole explanation of cooperative societies has recently been challenged on empirical grounds. These studies suggest that direct benefits of cooperation are often overlooked, and that partner choice may be a widespread mechanism of cooperation....
Modeling tritium transport through a deep unsaturated zone in an arid environment
C.J. Mayers, Brian J. Andraski, C.A. Cooper, S.W. Wheatcraft, David A. Stonestrom, R. L. Michel
2005, Vadose Zone Journal (4) 967-976
Understanding transport of tritium (3H) in unsaturated zones is critical to evaluating options for waste isolation. Tritium typically is a large component of low-level radioactive waste (LLRW). Studies at the U.S. Geological Survey's Amargosa Desert Research Site (ADRS) in Nevada investigate 3H transport from a closed LLRW facility. Two boreholes...
Cancer in sea turtles
Thierry M. Work
2005, Hawaii Medical Journal (64) 23-24
No abstract available....
The effects of sea level and palaeotopography on lithofacies distribution and geometries in heterozoan carbonates, south-eastern Spain
C.L. Johnson, E. K. Franseen, R.H. Goldstein
2005, Sedimentology (52) 513-536
This study utilized three-dimensional exposures to evaluate how sea-level position and palaeotopography control the facies and geometries of heterozoan carbonates. Heterozoan carbonates were deposited on top of a Neogene volcanic substrate characterized by palaeotopographic highs, palaeovalleys, and straits that were formed by subaerial erosion, possibly original volcanic topography, and faults...
Role for Fe(III) minerals in nitrate-dependent microbial U(IV) oxidation
John M. Senko, Yasser Mohamed, Thomas A. Dewers, Lee R. Krumholz
2005, Environmental Science & Technology (39) 2529-2536
Microbiological reduction of soluble U(VI) to insoluble U(IV) is a means of preventing the migration of that element in groundwater, but the presence of nitrate in U(IV)-containing sediments leads to U(IV) oxidation and remobilizaton. Nitrite or iron(III) oxyhydroxides may oxidize U(IV) under nitrate-reducing conditions, and we determined the rate and...
Grass buffers for playas in agricultural landscapes: A literature synthesis
Cynthia P. Melcher, Susan K. Skagen
2005, Open-File Report 2005-1220
We summarize current knowledge about grass buffers for protecting small, isolated wetlands in agricultural contexts, including information relevant to protecting playas from runoff containing sediments, nutrients, pesticides, and other contaminants, and information on how buffers may affect densities and productivity of grassland birds. Land-uses surrounding the approximately 60,000 playas within...
Mercury in birds of the San Francisco Bay-Delta: trophic pathways, bioaccumulation and ecotoxicological risk to avian reproduction
S.E. Schwarzbach, T.H. Suchanek, G. H. Heinz, Joshua T. Ackerman, Collin A. Eagles-Smith, T.L. Adelsbach, John Y. Takekawa, A.K. Miles, D. J. Hoffman, Wainwright-De La Cruz, S.E. Spring, M.A. Ricca, T. Maurer
2005, Report
No abstract available at this time...
Wetlands and use by breeding waterfowl in the National Grasslands: Grand River National Grasslands, South Dakota, and McKenzie District of the Little Missouri National Grasslands, North Dakota
J. E. Austin, D. A. Buhl
2005, Report
Cabeza Prieta National Wildlife Refuge visitors: Behaviors and attitudes about recreation opportunities
Phadrea D. Ponds, Nina Burkardt
2005, Human Dimensions of Wildlife (10) 75-76
No abstract available....
Why is metal bioaccumulation so variable? Biodynamics as a unifying concept
Samuel N. Luoma, Philip S. Rainbow
2005, Environmental Science & Technology (39) 1921-1931
Ecological risks from metal contaminants are difficult to document because responses differ among species, threats differ among metals, and environmental influences are complex. Unifying concepts are needed to better tie together such complexities. Here we suggest that a biologically based conceptualization, the biodynamic model, provides the necessary unification for a...
Microbial biogeochemistry of uranium mill tailings
Edward R. Landa
2005, Advances in Applied Microbiology (57) 113-130
Uranium mill tailings (UMT) are the crushed ore residues from the extraction of uranium (U) from ores. Among the radioactive wastes associated with the nuclear fuel cycle, UMT are unique in terms of their volume and their limited isolation from the surficial environment. For this latter reason, their management and...
Diseases of amphibian eggs and embryos
D. E. Green, K. A. Converse
S.K. Majumdar, J.E. Huffman, F.J. Brenner, A.I. Panah, editor(s)
2005, Book chapter, Wildlife Diseases: Landscape Epidemiology, Spatial Distribution and Utilization of Remote Sensing Technology.
Amphibians generally are prolific egg producers. In tropical and semi-tropical regions, deposition of eggs may occur year-round or may coincide with rainy seasons, while in temperate regions, deposition of eggs usually occurs immediately after emergence from hibernation. Numbers of eggs produced by each species may vary from a few dozen...
Batrachoseps pacificus (Cope, 1865), Channel Islands Slender Salamander
Robert W. Hansen, David B. Wake, Gary M. Fellers
Michael Lannoo, editor(s)
2005, Book chapter, Amphibian Declines: The Conservation Status of United States Species. Volume 2: Species Accounts.
No abstract available at this time...
Estimation of inorganic species aquatic toxicity
James P. Hickey
Gary K. Ostrander, editor(s)
2005, Book chapter, Techniques in aquatic toxicology
The acute aquatic toxicities (narcoses) for a range of organism types may be estimated with LSER for a large number of inorganic and organometal species, many with an accuracy at or within an order of magnitude. Optimum estimations make use of a bioavailable metal fraction and a more accurate...
Rana muscosa Camp 1917, Mountain Yellow-legged Frog
Vance Vredenburg, Gary M. Fellers, Carlos Davidson
Michael Lannoo, editor(s)
2005, Book chapter, Amphibian Declines: The Conservation Status of United States Species. Volume 2: Species Accounts.
No abstract available at this time...
Dilemma of the common species: Florida Box Turtles
C.K. Dodd Jr.
2005, Iguana (12) 152-159
Abstract not supplied at this time...
Protecting visitor health in beach waters of Lake Michigan: problems and opportunities
Meredith B. Nevers, Richard L. Whitman
T. Edsall, M. Munawar, editor(s)
2005, Book chapter, State of Lake Michigan: Ecology, Health, and Management
In this paper, we will review past research on Escherichia coli (E. Coli) and its relationship to recreational waters. Further, we will discuss current monitoring research and future prospects for improving monitoring efficiency to protect the health of beachgoers....
Mountain Systems
C. Korner, M. Ohsawa, and others
R. Hassan, R. Scholes, N. Ash, editor(s)
2005, Book chapter, Ecosystems and human well-being: Current state and trends, Volume 1
No abstract available....
Geochemical controls on microbial nitrate-dependent U(IV) oxidation
John M. Senko, Joseph M. Suflita, Lee R. Krumholz
2005, Geomicrobiology Journal (22) 371-378
After reductive immobilization of uranium, the element may be oxidized and remobilized in the presence of nitrate by the activity of dissimilatory nitrate-reducing bacteria. We examined controls on microbially mediated nitrate-dependent U(IV) oxidation in landfill leachate-impacted subsurface sediments. Nitrate-dependent U(IV)-oxidizing bacteria were at least two orders of magnitude less numerous...
Roads and Florida's herpetofauna: a review and mitigation case study
L. L. Smith, Kimberly G. Smith, W.J. Barichivich, C.K. Dodd Jr., K. Sorensen
W.E. Meshaka Jr., K.J. Babbitt, editor(s)
2005, Book chapter, Amphibians and Reptiles. Status and Conservation in Florida.
Abstract not supplied at this time...
Alternative management practices of Cirsium arvense: final report
D.L. Larson, J.L. Larson, C. Reed
2005, Report
