Day-roosts of female long-eared myotis in western Oregon
David L. Waldien, J. P. Hayes, Edward B. Arnett
2000, Journal of Wildlife Management (64) 785-796
Roosts are a critical habitat component for bats and may influence their survival and fitness. We used radiotelemetry to investigate characteristics of day-roosts of female long-eared myotis (Myotis evotis) in watersheds characterized by different forest conditions and the spatial relationships between day-roosts and available water. We tracked 21 bats to...
Avian toxicologic diagnosis
C.J. Sigurdson, J. C. Franson
A.M. Fudge, editor(s)
2000, Book chapter, Laboratory Medicine: Avian and Exotic Pets
This chapter describes the sources and pathophysiology of some potential poisons that affect birds and summarizes useful laboratory tests. The diagnosis of poisoning in birds, as in mammals, requires a complete and accurate history, careful observation of clinical signs, and a thorough necropsy evaluation. Appropriate sample handling and analysis, based...
National Wildlife Health Center's Quarterly Mortality Report
K. A. Converse, Kimberli J.G. Miller, L. Glaser, T. Creekmore, A. Schrader
2000, Supplement to the Journal of Wildlife Diseases (36)
Preliminary Report on the Spring Survey of Desert Tortoises at the Goffs Permanent Study Plot and Special Project on Effects of Roads
K.H. Berry
2000, Report
No abstract available at this time...
Can individual-based models yield a better assessment of population viability?
Y.G. Matsinos, W.F. Wolff, D.L. DeAngelis
S. and Burgman M. Ferson M., editor(s)
2000, Book chapter, Quantitative methods in conservation biology
No abstract available....
Effects of introduced crayfish on selected native fishes of Arizona
J. Carpenter
2000, Thesis
The virile crayfish (Orconectes virilis), an aggressive polytrophic species, has been introduced into many Arizona streams. I investigated competition and predation between this crayfish and several native Arizona fishes. I conducted field experiments to assess competition for food between crayfish and fish, and laboratory experiments to examine competition for shelter...
Managers' summary - Ecological studies of the Pryor Mountain Wild Horse Range, 1992-1997
F. J. Singer, K.A. Schoenecker
2000, Book
Ecological Studies of the Pryor Mountain Wild Horse Range, 1992-1997 provides a synthesis of key findings of landscape-scale, interdisciplinary studies of the effects of wild horses and native ungulates on a rugged, mountain ecosystem. This is perhaps the most comprehensive study of a wild horse herd conducted. This...
SNTEMP (In)frequently asked questions
J.M. Bartholow
2000, Report
Here, you will find a series of questions and answers resulting from many years of technical assistance with SNTEMP and SSTEMP. These (in)frequently asked questions are presented here so that you may get a feel for the range of questions posed, learn from the questions and their 'answers,' and share...
Redescription of Amphilius jacksonii (Siluriformes: Amphiliidae) with habitat and life-history notes
Stephen J. Walsh, Lauren J. Chapman, Amanda E. Rosenberger, Colin A. Chapman
2000, Ichthyological Exploration of Freshwaters (11) 163-174
No abstract available....
Florida manatee now resident in the Bahamas
James P. Reid
2000, Sirenews (33) 7-8
In January 2000, both the Bahamas National Trust and the Save the Manatee Club received reports of a manatee at Bullocks Harbor, Great Harbour Cay, Bahamas. Under permit with the Bahamas’ Department of Fisheries, I visited Great Harbour Cay from 25 to 27 February 2000 to make a field assessment...
A revised load estimation procedure for the Susquehanna, Potomac, Patuxent, and Choptank rivers
Steven E. Yochum
2000, Water-Resources Investigations Report 2000-4156
The U.S. Geological Survey's Chesapeake Bay River Input Program has updated the nutrient and suspended-sediment load data base for the Susquehanna, Potomac, Patuxent, and Choptank Rivers using a multiple-window, center-estimate regression methodology. The revised method optimizes the seven-parameter regression approach that has been used historically by the program. The revised...
Surface-subsurface exchange and nutrient spiraling: Chapter 6
Patrick J. Mulholland, Donald L. DeAngelis
Jeremy B. Jones, Patrick J. Mulholland, editor(s)
2000, Book chapter, Streams and groundwaters
No abstract available....
Is Acropora palmata (elkhorn coral) making a comeback in the Virgin Islands?
Caroline S. Rogers
2000, Reef Encounters (27) 15-17
White band disease (WBD) ravaged Acropora palmata (elkhorn coral) on many coral reefs in the Caribbean in the late 1970’s and 1980’s, including those around St. John and St. Croix, U. S. Virgin Islands—USVI (Gladfelter 1982, Rogers 1985). Quantitative data, photographs, and anecdotal observations indicate WBD killed large stands of...
Sediment yield following severe volcanic disturbance - A two-decade perspective from Mount St. Helens
J. J. Major, T.C. Pierson, R.L. Dinehart, J. E. Costa
2000, Geology (28) 819-822
Explosive volcanic eruptions perturb water and sediment fluxes in watersheds; consequently, posteruption sediment yields can exceed pre-eruption yields by several orders of magnitude. Annual suspended-sediment yields following the catastrophic 1980 Mount St. Helens eruption were as much as 500 times greater than typical background level, and they generally declined nonlinearly...
Diversity, distribution, and conservation status of the native freshwater fishes of the southern United States
Melvin L. Warren Jr., Brooks M. Burr, Stephen J. Walsh, Henry L. Bart Jr., Robert C. Cashner, David A. Etnier, Byron J. Freeman, Bernard R. Kuhajda, Richard L. Mayden, Henry W. Robison, Stephen T. Ross, Wayne C. Starnes
2000, Fisheries (25) 7-31
The Southeastern Fishes Council Technical Advisory Committee reviewed the diversity, distribution, and status of all native freshwater and diadromous fishes across 51 major drainage units of the southern United States. The southern United States supports more native fishes than any area of comparable size on the North American continent north...
Techniques used to monitor radio-tagged juvenile salmonids at Columbia and Snake River Dams
N.S. Adams, R.S. Shively, C. Grant
J.E. Eiler, D.J. Acorn, M.R. Neuman, editor(s)
2000, Conference Paper, Proceedings of the 15th international symposium on biotelemetry
No abstract available ...
Diagenesis and reservoir quality of the Upper Mississippian Aux Vases Sandstone, Illinois Basin
Janet K. Pitman, Mitchell E. Henry, Hannes E. Leetaru
2000, Professional Paper 1609
Conventional reservoir quality data for more than 300 wells provided by the Illinois and Indiana state geological surveys were analyzed to determine the factors governing porosity and permeability in the Upper Mississippian Aux Vases Sandstone, an important hydrocarbon-producing unit in the Illinois Basin. In addition, approximately 150 samples of the...
Are North Slope surface alluvial fans pre-Holocene relicts?
Erk Reimnitz, Stephen C. Wolf
2000, Professional Paper 1605
The surface morphology of the northern slope of the Brooks Range (North Slope) from the Canning River, Alaska, eastward is dominated by a series of large alluvial fans and braided streams floored by coarse alluvium. On the basis of our studies, we conclude that the fans are not prograding now...
Recent research on the hydrodynamics of the Sacramento - San Joaquin River Delta and north San Francisco Bay
Jon R. Burau, Stephen G. Monismith, Mark T. Stacey, Richard N. Oltmann, Jessica Lacy, David H. Schoellhamer
2000, Interagency Ecological Program Newsletter (11) 45-55
This article presents an overview of recent findings from hydrodynamic research on circulation and mixing in the Sacramento-San Joaquin Delta (Delta) (Figure 1) and North San Francisco Bay (North Bay) (Figure 2). For the purposes of this article, North Bay includes San Pablo Bay, Carquinez Strait, and Suisun Bay. The...
Species richness and abundance of ectomycorrhizal basidiomycete sporocarps on a moisture gradient in the Tsuga heterophylla zone
Thomas E. O’Dell, Joseph F. Ammirati, Edward G. Schreiner
2000, Canadian Journal of Botany (77) 1699-1711
Sporocarps of epigeous ectomycorrhizal fungi and vegetation data were collected from eight Tsuga heterophylla (Raf.) Sarg. - Pseudotsuga menziesii (Mirb.) Franco stands along a wet to dry gradient in Olympic National Park, Washington, U.S.A. One hundred and fifty species of ectomycorrhizal fungi were collected from a total sample area of 2.08 ha. Over 2 years, fungal...
The Tintina Gold Belt - A global perspective
Richard J. Goldfarb, Craig J. R. Hart, Marti L. Miller, Lance D. Miller, G. Lang Farmer, David I. Groves
Terry L. Tucker, Moira T. Smith, editor(s)
2000, Book chapter, The Tintina Gold Belt: Concepts, exploration, and discoveries: Special volume 2
The so-called Tintina Gold Belt extends for more than 1000 km along the length of the northern North American Cordillera. Middle to Late Cretaceous Au deposits within the belt have various similar characteristics, among which are a spatial and temporal association with magmatism; Bi-W-Te signatures in deposits hosted by granitod...
Taking the Earth's Pulse
Robert L. Woodward, Harley Mitchell Benz, Kaye M. Shedlock, William M. Brown III
2000, Fact Sheet 103-97
During the past 35 years, scientists have developed a vast network of seismometers that record earthquakes, volcanic eruptions, and nuclear explosions throughout the world. Seismographic data support disaster response, scientific research, and global security. With this network, the United States maintains world leadership in monitoring the greatest natural and technological...
The effects of dissolved gas supersaturation on white sturgeon larvae
T.D. Counihan, Allen I. Miller, M.G. Mesa, M.J. Parsley
2000, Transactions of the American Fisheries Society (127) 316-322
Spill at dams has caused supersaturation of atmospheric gas in waters of the Columbia and Snake rivers and raised concerns about the effects of dissolved gas supersaturation (DGS) on white sturgeons Acipenser transmontanus. The timing and location of white sturgeon spawning and the dispersal of white sturgeon larvae from incubation...
Effects of rearing density and raceway conformation on growth, food conversion, and survival of juvenile spring chinook salmon
R.D. Ewing, J.E. Sheahan, M.A. Lewis, Aldo N. Palmisano
2000, Progressive Fish-Culturist (60) 167-178
Four brood years of juvenile spring chinook salmon Oncorhynchus tshawytscha were reared in conventional and baffled raceways at various rearing densities and loads at Willamette Hatchery, Oregon. A period of rapid linear growth occurred from August to November, but there was little or no growth from November to March when...
Creating an effective fact sheet
Peter H. Stauffer, James W. Hendley II
2000, Fact Sheet 008-97
