Biological monitoring of environmental quality: The use of developmental instability
D.C. Freeman, J.M. Emlen, J.H. Graham, R. A. Hough, T.A. Bannon
1994, Journal of Environmental Engineering (4) 6-11
Distributed robustness is thought to influence the buffering of random phenotypic variation through the scale-free topology of gene regulatory, metabolic, and protein-protein interaction networks. If this hypothesis is true, then the phenotypic response to the perturbation of particular nodes in such a network should be proportional to the number of...
Scale asymmetry: A tool to detect developmental instability under the fractal geometry scope
C.L. Alados, J. Escos, J.M. Emlen
M.M. Novak, editor(s)
1994, Conference Paper, Fractals in the natural and applied sciences, Proceedings second IFIP working conference on fractals in natural and applied sciences
No abstract available...
Potentiometric-surface map of the Sparta aquifer in Mississippi, October through December 1989
William T. Oakley, David E. Burt Jr.
1994, Water-Resources Investigations Report 94-4048
No abstract available. ...
Developmental stability in plants: symmetries, stress and epigenesis
D.C. Freeman, J.H. Graham, J.M. Emlen
1994, Book chapter, Developmental instability: Its origins and evolutionary implications
No abstract available...
Temperature and CO2 Effects on Blood O2 Equilibria in Northern Squawfish, Ptychocheilus oregonensis
Joseph J. Cech Jr., Daniel T. Castleberry, Todd E. Hopkins
1994, Canadian Journal of Fisheries and Aquatic Sciences (51) 13-19
In vitro blood O2 equilibrium curves were constructed at 9, 15, 18, and 21 °C from temperature-acclimated northern squawfish, Ptychocheilus oregonensis. At low (<1 mm Hg, 1 mm Hg = 133.32 Pa), P50s generally showed variable increases with temperature from 3.6 mm Hg at 9 °C to 8.7 mm Hg at 21...
Assessing smoltification of juvenile spring Chinook salmon Oncorhynchus tshawytscha using changes in body morphology
J.W. Beeman, D.W. Rondorf, M.E. Tilson
1994, Canadian Journal of Fisheries and Aquatic Sciences (51) 836-844
A morphometric measure of smoltification of juvenile spring chinook salmon (Oncorhynchus tshawytscha) was developed and evaluated. Fish were collected from hatcheries in Washington and Idaho prior to release and at McNary Dam on the Columbia River during their downstream migration. Distances between 15 anatomical landmarks were digitized from photographs of...
Northern squawfish Ptychochelius oregonensis, O2 consumption rate: Effects of temperature and body size
Joseph J. Cech Jr., Daniel T. Castleberry, Todd E. Hopkins, James H. Petersen
1994, Canadian Journal of Fisheries and Aquatic Sciences (51) 8-12
Northern squawfish, Ptychocheilus oregonensis (live weight range 0.361–1.973 kg), O2consumption was measured with temperature-controlled, flow-through respirometers for >24 h. Mean standard O2 consumption rate of northern squawfish increased with acclimation temperature: 24.3, 49.1, 75.0, and 89.4 mg∙kg−0.67∙h−1 at 9, 15, 18, and 21 °C, respectively. Q10analysis showed that O2 consumption rate temperature sensitivity...
An intersection model for estimating sea otter mortality along the Kenai Peninsula
James L. Bodkin, Mark S. Udevitz
Thomas R. Loughlin, editor(s)
1994, Book chapter, Marine mammals and the <i>Exxon Valdez</i>
We developed an intersection model to integrate parameters estimated from three distinct data sets that resulted from the Exxon Valdez oil spill: (1) the distribution, amount, and movements of spilled oil; (2) the distribution and abundance of sea otters along the Kenai Peninsula; and (3) the estimates of site-specific sea otter mortality...
Water Resources Data, Georgia, Water Year 1993
W.R. Stokes, R.D. McFarlane
1994, Water Data Report GA-93-1
Tree rings : timekeepers of the past
Richard L. Phipps, J. McGowan
1994, Report
Evapotranspiration estimation using a normalized difference vegetation index transformation of satellite data
P. M. Seevers, R. W. Ottmann
1994, Hydrological Sciences Journal (39) 333-345
Evapotranspiration of irrigated crops on two irrigation service areas along the lower Colorado River was estimated using a normalized difference vegetation index of satellite data. A procedure was developed which equated the index to crop coefficients. Evapotranspiration estimates for fields for three dates of thematic mapper data were highly correlated...
Mercury concentrations in perch (Perca fluviatilis) as influenced by lacustrine physical and chemical factors in two regions of Russia
T. Haines, V. Komov, C. Jagoe
C.J. Watras, J.W. Huckabee, editor(s)
1994, Book chapter, Mercury pollution: Integration and synthesis
No abstract available....
Simulation of ground-water flow and the movement of saline water in the Hueco Bolson aquifer, El Paso, Texas, and adjacent areas
George E. Groschen
1994, Open-File Report 92-171
The Hueco bolson aquifer is being pumped at increasing rates to supply water for El Paso, Texas, and Ciudad Juarez, Mexico. Water-use projections for 1984-2000 indicate that the upward trend in pumping rates probably will continue, which will put an increasing burden on the limited freshwater resources of the aquifer....
An analysis of human-induced land transformations in the San Francisco Bay/Sacramento area
David A. Kirtland, L.J. Gaydos, Keith Clarke, Lee DeCola, William Acevedo, Cindy Bell
1994, World Resource Review (6) 206-217
Part of the U.S. Geological Survey's Global Change Research Program involvesstudying the area from the Pacific Ocean to the Sierra foothills to enhance understanding ofthe role that human activities play in global change. The study investigates the ways thathumans transform the land and the effects that changing the landscape may...
Concentrations of dissolved radon-222 in water from selected wells and springs in Idaho, 1989-91
L.D. Cecil, D. J. Parliman, D.D. Edwards, H.W. Young
1994, Open-File Report 94-66
Technology transfer opportunities :partnerships : Aquatic contaminants in colloidal phases and humic complexes
Water Resources Division, U.S. Geological Survey
1994, Fact Sheet 065-94
Earthquake Alaska: Are we prepared?
Rodney Combellick, Roger Head, Randall G. Updike, editor(s)
1994, Open-File Report 94-218
No abstract available....
Evaluation of Greater White-fronted Goose Habitat Suitability Index (HSI) Model
D.L. Orthmeyer
1994, Report
No abstract available at this time...
Graptemys ernsti
J.E. Lovich, C.J. McCoy
1994, Book chapter, Catalogue of American Amphibians and Reptiles
No abstract available at this time...
Magnitude and frequency of floods in Alaska and conterminous basins of Canada
Stanley H. Jones, Charles B. Fahl
1994, Water-Resources Investigations Report 93-4179
Equations for estimating the magnitude and frequency of floods at ungaged sites on streams in Alaska and conterminous basins of Canada were developed using multipleregression analyses of basin climatic and physical characteristics and peak-flow statistics from 260 gaged locations in Alaska and 72 gaged locations in Canada. Methods are presented...
Breeding status of the least Bell's vireo in the Tijuana River Valley, California, 1994
B.E. Kus
1994, Report
No abstract available at this time...
Late Wisconsinan to Pre-Illinoian(G?) glacial and periglacial events in eastern Pennsylvania; (Guidebook for the 57th field conference, Friends of the Pleistocene northeastern section, May 20-22, 1994, Hazleton, Pennsylvania)
D. D. Braun, E.J. Ciolkosz, J. D. Inners, J. B. Epstein, G. M. Clark, I.D. Sasowsky, Robin Koberle
1994, Open-File Report 94-434
Monitoring the impacts and persistence of fine sediment in the Prairie Creek Watershed: Water Years 1991-1992
C.B. Meyer, R.M. Coey, R.D. Klein, Mary Ann Madej, D.W. Best, V.L. Ozaki
1994, Report
No abstract available at this time...
The status of sea ducks in the North Pacific Rim: Toward their conservation and management
R. Ian Goudie, Solange Brault, Bruce Conant, Alexander V. Kondratyev, Margaret R. Petersen, Kees Vermeer
Richard E. McCabe, Kelly G. Wadsworth, editor(s)
1994, Conference Paper, Transactions of the fifty-ninth North American wildlife and natural resources conference
Sea ducks (tribe Mergini after Johnsgard 1960) are the most northerly distributed ducks, and species diversity is greatest in the North Pacific. They exploit a diversity of inshore and offshore marine habitats during the non-breeding season, and their use of habitat during breeding varies from coastal through freshwater wetlands of...
Genetic diversity in Arctic-nesting geese: Implications for management and conservation
Craig R. Ely, Kim T. Scribner
Richard E. McCabe, Kelly G. Wadsworth, editor(s)
1994, Conference Paper, Transactions of the fifty-ninth North American wildlife and natural resources conference
The North Pacific Rim harbors breeding populations of many unique wildlife resources, of which waterfowl are among the most abundant and taxonomically diverse. Arctic nesting geese in particular are wide-spread in distribution (Figure 1), and though only seasons residents, they have evolved many unique adaptations for breeding in northern latitudes....
