First-year growth, condition, and size-selective winter mortality of freshwater drum in the lower Missouri River
P.J. Braaten, C.S. Guy
2004, Transactions of the American Fisheries Society (133) 385-398
We compared first-year growth and relative condition (Kn) of the 1997 and 1998 year-classes of freshwater drum Aplodinotus grunniens among three sites in a 235-km reach of the channelized Missouri River and tested for the occurrence of size-selective overwinter mortality during the first winter. Prewinter mean length was 15 mm...
The probable importance of snow and sediment shielding on cosmogenic ages of north-central Colorado Pinedale and pre-Pinedale moraines
L. Benson, R. Madole, W. Phillips, G. Landis, T. Thomas, P. Kubik
2004, Quaternary Science Reviews (23) 193-206
Eight uncorrected 36Cl ages for Pinedale boulders in north-central Colorado fall in the range 16.5 to 20.9 kyr. 10Be age determinations on four of five boulders are in close agreement (???6% difference) with 36Cl determinations. Hypothetical corrections for snow shielding increased the 36Cl ages of Pinedale boulder surfaces by an...
Nitrification in the Upper Mississippi River: Patterns, controls, and contribution to the NO3- budget
E.A. Strauss, W. B. Richardson, L.A. Bartsch, J.C. Cavanaugh, D.A. Bruesewitz, H. Imker, J.A. Heinz, D.M. Soballe
2004, Journal of the North American Benthological Society (23) 1-14
We measured nitrification rates in sediment samples collected from a variety of aquatic habitats in Navigation Pool 8 of the Upper Mississippi River (UMR) 7 times between May 2000 and October 2001. We also conducted nutrient-enrichment experiments and analyzed vertical profiles of sediment to determine factors regulating nitrification. Nitrification rates...
Isotopic, geochemical, and temporal characterization of Proterozoic basement rocks in the Quitovac region, northwestern Sonora, Mexico: Implications for the reconstruction of the southwestern margin of Laurentia
A. Iriondo, W. R. Premo, Luis M. Martinez-Torres, J. R. Budahn, William W. Atkinson Jr., D. F. Siems, B. Guaras-Gonzalez
2004, Geological Society of America Bulletin (116) 154-170
A detailed geochemical characterization of 19 representative Proterozoic basement rocks in the Quitovac region in northwestern Sonora, Mexico, has identified two distinct Paleoproterozoic basement blocks that coincide spatially with the previously proposed Caborca and "North America" blocks. New U-Pb zircon geochronology revises their age ranges, the Caborca (1.78-1.69 Ga) and...
Grey wolf Canis lupus Linnaeus, 1758
L.D. Mech, L. Boitani
Claudio Sillero-Zubiri, Michael Hoffmann, David W. Macdonald, editor(s)
2004, Book chapter, Canids: foxes, wolves, jackals, and dogs: status survey and conservation action plan
No abstract available....
Spatial and temporal multiyear sea ice distributions in the Arctic: A neural network analysis of SSM/I data, 1988-2001
G. I. Belchansky, David C. Douglas, I.V. Alpatsky, Nikita G. Platonov
2004, Journal of Geophysical Research (109)
Arctic multiyear sea ice concentration maps for January 1988-2001 were generated from SSM/I brightness temperatures (19H, 19V, and 37V) using modified multiple layer perceptron neural networks. Learning data for the neural networks were extracted from ice maps derived from Okean and ERS satellite imagery to capitalize on the stability of...
Foraging ecology in White-tailed Kites (Elanus leucurus)
H.M. Mohan
2004, Thesis
No abstract available....
Distribution and abundance of the southwestern willow flycatcher at selected southern California sites in 2001. Prepared for the California Department of Fish and Game, Wildlife Management Division, Sacramento, California
J. Rourke, B. Kus, M. Whitfield
2004, Report
No abstract available at this time...
Trapping and shooting light geese on migration and wintering areas
R. R. Cox Jr., C.D. Ankeny
M. A. Johnson, C.D. Ankeny, editor(s)
2004, Book chapter, Direct control and alternative harvest strategies for North American light geese: Report of the Direct Control and Alternative Harvest Measures Working Group. Arctic Goose Joint Venture Special Publication
Writing refuge management goals and objectives: a handbook
Robert S. Adamcik, Elizabeth Bell, Don C. DeLong Jr., John H. Schomaker, David B. Hamilton, Murray K. Laubhan, Richard L. Schroeder
2004, Report
Goals and objectives are the unifying elements of successful refuge management. They identify and focus management priorities, provide a context for resolving issues, guide specific projects, provide rationale for decisions, and offer a defensible link among management actions, refuge purpose(s), Service policy, and the National Wildlife Refuge System (Refuge System) mission. Pursuant to Refuge...
Swift fox Vulpes velox (Say, 1823)
A. Moehrenschlager, M.A. Sovada
Claudio Sillero-Zubiri, Michael Hoffmann, David W. Macdonald, editor(s)
2004, Book chapter, Canids: foxes, wolves, jackals, and dogs: status survey and conservation action plan
No abstract available....
Book review: Bioindicators & biomonitors, principles, concepts, and applications
James P. Bennett
2004, Science of the Total Environment (328) 295-295
Lessons learned from the wildfires
Jon E. Keeley, C. J. Fotheringham
R.W. Halsey, editor(s)
2004, Book chapter, Fire, chaparral and survival in southern California.
No abstract available at this time...
An experimental demonstration of stem damage as a predictor of fire-caused mortality for ponderosa pine
P. J. van Mantgem, M.W. Schwartz
2004, Canadian Journal of Forest Research (34) 1343-1347
Identifying marine bird distribution and evaluating visitor impacts
Mayumi L. Arimitsu, Marc D. Romano, John F. Piatt
2004, Report, Annual Report (PMIS 35598) to National Park Service
Tundra swan research needs on the Upper Mississippi River
K.P. Kenow, J.M. Nissen, R. Drieslein, E.M. Thorson
D.K. Weaver, M.H. Linck, R.E. Shea, editor(s)
2004, Book chapter, Selected Papers of the Nineteenth Trumpeter Swan Society Conference
Abstract not submitted to date...
Riparian ecosystem assessments
J. Stromberg, M. Briggs, M. Scott, P. Shafroth
M. B. Baker, P. F. Ffolliott, L. F. DeBano, D. G. Neary, editor(s)
2004, Book chapter, Riparian areas of the southwestern United States: Hydrology, ecology, and management
No abstract available....
Plant communities
K. McEachern
2004, Book chapter, The natural resources of Point Loma
No abstract available....
Pleistocene glaciations of the Rocky Mountains
K. L. Pierce
A.R. Gillespie, S.C. Porter, B.F. Atwater, editor(s)
2004, Book chapter, The Quaternary Period in the United States: Developments in Quaternary Science, v. 1
Abstract has not been submitted...
Comparative ecology and conservation priorities of swift and kit foxes
A. Moehrenschlager, B.L. Cypher, K. Ralls, R. List, M.A. Sovada
D.W. MacDonald, C. Sillero-Zubiri, editor(s)
2004, Book chapter, Biology and Conservation of Wild Canids
Dynamic consequences of allochthonous nutrient input into freshwater systems
D.L. DeAngelis, P. J. Mulholland
G. A. Polis Huxel, G.R., editor(s)
2004, Food Webs at the Landscape Level 12-24
Abstract not supplied at this time...
National Wildlife Health Center Quarterly Mortality Report
K. A. Converse, R. Sohn, G. McLaughlin, C. Lemanksi
2004, Supplement to the Journal of Wildlife Diseases (40)
Estimating the time of melt onset and freeze onset over Arctic sea-ice area using active and passive microwave data
Gennady I. Belchansky, David C. Douglas, Ilia N. Mordvintsev, Nikita G. Platonov
2004, Remote Sensing of Environment (92) 21-39
Accurate calculation of the time of melt onset, freeze onset, and melt duration over Arctic sea-ice area is crucial for climate and global change studies because it affects accuracy of surface energy balance estimates. This comparative study evaluates several methods used to estimate sea-ice melt and freeze onset dates: (1)...
Pintail north-south flight paths in the Grassland Ecological Area
J. P. Fleskes
2004, Book chapter, 2002/2003 Transactions of the Western Section of The Wildlife Society
No abstract available....
2000-2002 Anza-Borrego Desert State Park Amphibian Survey
M.L. Warburton, Robert N. Fisher, S.A. Hathaway
2004, Report
No abstract available at this time...
