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Historical changes in the Columbia River estuary based on sediment cores: feasibility studies
J.H. Petersen, R. Reisenbichler, G.R. Gelfenbaum, C. Peterson, D. Baker, P.R. Leavitt, C.A. Simenstad, F.G. Prahl
2003, Report
The importance of the Columbia River estuary to salmon, other fishes, migratory birds, and other species is fairly well established. Relatively little is known, however, about long-term, historic variations in biological processes and conditions within the estuary. For example, have conditions varied greatly with climatic regime shifts and how has...
Using 3D acoustic telemetry to assess the response of resident salmonids to strobe lights in Lake Roosevelt, Washington: Chief Joseph Kokanee Enhancement Feasibility Study, 2001-2002 annual report
R.W. Perry, M.J. Farley, G.S. Hansen, D.J. Shurtleff, D.W. Rondorf, R. LeCaire
2003, Report
In 1995, the Chief Joseph Kokanee Enhancement Project was established to mitigate the loss of anadromous fish due to the construction of Chief Joseph and Grand Coulee dams. The objectives of the Chief Joseph Enhancement Project are to determine the status of resident kokanee (Oncorhynchus nerka) populations above Chief Joseph...
Amphibian conservation genetics
C.M. Bridges, C. L. Rowe, W. A. Hopkins
2003, Book chapter, Amphibian decline: An integrated analysis of multiple stressor effects
No abstract available....
Bisphenol A is released from used polycarbonate animal cages into water at room temperature
Kembra L. Howdeshell, Paul H. Peterman, Barbara M. Judy, Julia A. Taylor, Carl E. Orazio, Rachel L. Ruhlen, Frederick S. vom Saal, Wade V. Welshons
2003, Environmental Health Perspectives (111) 1180-1187
Bisphenol A (BPA) is a monomer with estrogenic activity that is used in the production of food packaging, dental sealants, polycarbonate plastic, and many other products. The monomer has previously been reported to hydrolyze and leach from these products under high heat and alkaline conditions, and the amount of leaching...
Identification of larval Pacific lampreys (Lampetra tridentata), river lampreys (L. ayresi), and western brook lampreys (L. richardsoni) and thermal requirements of early life history stages of lampreys. Annual report 2002-2003
M.H. Meeuwig, J.M. Bayer, J.G. Seelye, R.A. Reiche
2003, Report
Two fundamental aspects of lamprey biology were examined to provide tools for population assessment and determination of critical habitat needs of Columbia River Basin (CRB) lampreys (the Pacific lamprey, Lampetra tridentata, and the western brook lamprey, L. richardsoni). We evaluated the usefulness of current diagnostic characteristics for identification of larval...
Capture methods for Musk Ducks
K. G. McCracken, J. Hemmings, D.C. Paton, A. D. Afton
2003, Wildfowl (54) 211-241
Musk Ducks Biziura lobata are endemic to wetlands, river systems and coastal oceanic waters of temperate Australia. Individuals of this species are difficult to capture because of their excellent swimming and diving abilities and frequent use of deep-water habitats. Night-lighting, baited clover-leaf traps and walk-in-nest-traps were used to capture Musk...
Desert tortoise (Gopherus agassizii) survival at two eastern Mojave Desert sites: Death by short-term drought?
Kathleen M. Longshore, Jef R. Jaeger, J. Mark Sappington
2003, Journal of Herpetology (37) 169-177
Survival of adult Desert Tortoises (Gopherus agassizii) appears related to site-specific variation in precipitation and productivity of annual plants. We studied adult tortoise survival rates at two closely situated, but physiographically different, sites in the eastern Mojave Desert over a nine-year period (spring 1992 to spring 2001). Survival rates were...
Improving size estimates of open animal populations by incorporating information on age
Bryan F.J. Manly, Trent L. McDonald, Steven C. Amstrup, Eric V. Regehr
2003, BioScience (53) 666-669
Around the world, a great deal of effort is expended each year to estimate the sizes of wild animal populations. Unfortunately, population size has proven to be one of the most intractable parameters to estimate. The capture-recapture estimation models most commonly used (of the Jolly-Seber type) are complicated and require...
Evaluation of relocation of unionid mussels to in situ refugia
W.G. Cope, M.C. Hove, D. L. Waller, D.J. Hornbach, M.R. Bartsch, L.A. Cunningham, H.L. Dunn, A.R. Kapuscinski
2003, Journal of Molluscan Studies (69) 27-34
The aim of this study was to evaluate the recovery and survival of four species of unionid mussles [pimpleback, Quadrula pustulosa pustulosa (I. Lea, 1831); spike, Elliptio dilatata (Rafinesque, 1820); Higgins eye, Lampsilis higginsii (I. Lea, 1857); and pocketbook, Lampsilis cardium (Rafinesque, 1820)] that were experimentally relocated to in situ...
Tidal truncation and barotropic convergence in a channel network tidally driven from opposing entrances
J.C. Warner, D. Schoellhamer, G. Schladow
2003, Estuarine, Coastal and Shelf Science (56) 629-639
Residual circulation patterns in a channel network that is tidally driven from entrances on opposite sides are controlled by the temporal phasing and spatial asymmetry of the two forcing tides. The Napa/Sonoma Marsh Complex in San Francisco Bay, CA, is such a system. A sill on the west entrance to...
Movement and habitat use by radio-tagged paddlefish in the upper Mississippi River and tributaries
S. J. Zigler, M. R. Dewey, B.C. Knights, A.L. Runstrom, M.T. Steingraeber
2003, North American Journal of Fisheries Management (23) 189-205
We used radio telemetry to evaluate the movement and habitat use of paddlefish Polyodon spathula in the upper Mississippi River and two tributary rivers. Radio transmitters were surgically implanted into 71 paddlefish in Navigation Pools 5A and 8 of the upper Mississippi River, the Chippewa River, and the Wisconsin River...
Environmental fate and effects of the lampricide TFM: a review
T.D. Hubert
2003, Journal of Great Lakes Research (29) 456-474
Use of 3-trifluoromethyl-4-nitrophenol (TFM) is limited geographically to the Great Lakes basin where it is the principal agent used in control of the sea lamprey (Petromyzon marinus). It is clear from available data that TFM has effects on the environment, but the effects reported are transient. Individual organisms and aquatic...
Evaluation of landscape models for wolverines in the interior northwest, United States of America
M.M. Rowland, M.J. Wisdom, Douglas H. Johnson, B.C. Wales, J.P. Copeland, F.B. Edelmann
2003, Journal of Mammalogy (84) 92-105
The wolverine (Gulo gulo) is an uncommon, wide-ranging carnivore of conservation concern. We evaluated performance of landscape models for wolverines within their historical range at 2 scales in the interior Northwest based on recent observations (n = 421) from Washington, Oregon, Idaho, and Montana. At the subbasin scale, simple overlays of...
U.S. Geological Survey Greater Everglades Science Program: 2002 Biennial Report
Arturo E. Torres, Aaron L. Higer, Heather S. Henkel, Patsy R. Mixson, Jane R. Eggleston, Teresa L. Embry, Gail Clement
2003, Open-File Report 03-54
IntroductionThe U.S. Geological Survey (USGS) conducts scientific investigations in south Florida to improve society’s understanding of the environment and assist in the sustainable use, protection, and restoration of the Everglades and other ecosystems within the region. The investigations summarized in this document have been carried out under the Greater Everglades...
Small-Scale Vertical Distribution of Bacterial Biomass and Diversity in Biological Soil Crusts from Arid Lands in the Colorado Plateau
F. Garcia-Pichel, S. L. Johnson, D. Youngkin, J. Belnap
2003, Microbial Ecology (46) 312-321
We characterized, at millimeter resolution, bacterial biomass, diversity, and vertical stratification of biological soil crusts in arid lands from the Colorado Plateau. Microscopic counts, extractable DNA, and plate counts of viable aerobic copiotrophs (VAC) revealed that the top centimeter of crusted soils contained atypically large bacterial populations, tenfold larger than...