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Page 4686, results 117126 - 117150

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Habitat Suitability Index Models: Common shiner
Joan G. Trial, Charles S. Wade, Jon G. Stanley, Patrick C. Nelson
1983, FWS/OBS 82/10.40
A review and synthesis of existing information were used to develop riverine and lacustrine habitat models for common shiner (Notropis cornutus). The models are scaled to produce an index of habitat suitability between 0 (unsuitable habitat) to 1 (optimally suitable habitat) for the northeastern range of the common shiner in...
Aquifer systems in the Great Basin region of Nevada, Utah, and adjacent states: A study plan
James R. Harrill, Alan H. Welch, David E. Prudic, James M. Thomas, Rita L. Carman, Russell W. Plume, Joseph S. Gates, James L. Mason
1983, Open-File Report 82-445
The Great Basin Regional Aquifer Study includes about 140,000 square miles in parts of Nevada, Utah, California, Idaho, Oregon, and Arizona. Within that area, 240 hydrographic areas occupy structural depressions formed primarily by basin-and-range faulting. The principal aquifers are in basin- fill deposits; however, permeable carbonate rocks underlie valleys in...
Habitat Suitability Index Models: Littleneck clam
Kenneth Rodnick, Hiram W. Li
1983, FWS/OBS 82/10.59
The littleneck clam, a member of the family Veneridae, is a hardshell species found in estuaries, bays, sloughs, and open coastl ines along the Pacific coast. This clam primarily inhabits the intertidal zone, but also occurs in subtidal areas (Hancock et ale 1979). It ranges from the Aleutian Islands to...
Habitat Suitability Index Models: Black-capped chickadee
Richard L. Schroeder
1983, FWS/OBS 82/10.37
A review and synthesis of existing information was used to develop a habitat model for the black-capped chickadee (Parus atricapillus). The model is scaled to produce an index of habitat suitability between 0 (unsuitable habitat) and 1 (optimally suitable habitat) for areas of the continental United States. Habitat suitability indexes...
Avian use of forest habitats in the Pembina Hills of northeastern North Dakota
Craig A. Faanes, Jonathan M. Andrew
1983, Resource Publication 151
North Dakota has the least extensive total area of forested habitats of any of the 50 United States. Although occurring in limited area, forest communities add considerably to the total ecological diversity of the State. The forests of the Pembina Hills region in northeastern North Dakota are one of only...
Habitat Suitability Index Models: Downy woodpecker
Richard L. Schroeder
1983, FWS/OBS 82/10.38
A review and synthesis of existing information was used to develop a habitat model for the downy woodpecker (Picoides eubescens). The model is scaled to produce an index of habitat suitability between 0 (unsuitable habitat) and 1 (optimally suitable habitat) for areas of the continental United States. Habitat suitability indexes...
Habitat Suitability Index Models: Fallfish
Joan G. Trial, Charles S. Wade, Jon G. Stanley, Patrick C. Nelson
1983, FWS/OBS 82/10.48
A review and synthesis of existing information were used to develop riverine and lacustrine habitat models for fallfish (Semotilis corporalis), a freshwater species. The models are scaled to produce an index of habitat suitability between 0 (unsuitable habitat) to 1 (optimally suitable habitat) for freshwater, marine and estuarine areas of...
Habitat Suitability Index Models: Mink
Arthur W. Allen
1983, FWS/OBS 82/10.61
The mink (Mustela vison) is a predatory, semiaquatic mammal that is generally associated with stream and river banks, lake shores, fresh and saltwater marshes, and marine shore habitats (Gerell 1970).  Mink are chiefly nocturnal and remain active throughout the year (Marshall 1936); Gerell 1969; Burgess 1978)....
Habitat Suitability Index Models: Lewis' woodpecker
Patrick J. Sousa
1983, FWS/OBS 82/10.32
This document is part of the Habitat Suitability Index (HSI) Model Series (FWS/OBS-82/10), which provides habitat information useful for impact assessment and habitat management. Several types of habitat i nformat i on are provided. The Habitat Use Information Section is largely constrained to those data that can be used to...
Habitat Suitability Information: Blacknose dace
Joan G. Trial, Jon G. Stanley, Mary Batcheller, Gary Gebhart, O. Eugene Maughan, Patrick C. Nelson
1983, FWS/OBS 82/10.41
A review and synthesis of existing information were used to develop riverine and lacustrine habitat models for Blacknose dace, a freshwater species. The models are scaled to produce an index of habitat suitability between 0 (unsuitable habitat) to 1 (optimally suitable habitat) for freshwater, marine, and estuarine areas of the...
Biogeochemical sampling in the Mahd Adh Dhahab District, Kingdom of Saudi Arabia
Richard J. Ebens, Hansford T. Shacklette, Ronald G. Worl
1983, Open-File Report 83-330
A biogeochemical reconnaissance of the Mahd adh Dhahab district, Kingdom of Saudi Arabia, confirms the ability of deep-rooted Acacia trees to reflect bedrock concentrations of some trace elements. The analytical values for lead, zinc, selenium, and cadmium in ash of tree branches are significantly higher in samples from areas of...
Habitat Suitability Index Models: Yellow perch
Douglas A. Krieger, James W. Terrell, Patrick C. Nelson
1983, FWS/OBS 82/10.55
A review and synthesis of existing information were used to develop riverine and lacustrine habitat models for yellow perch (Perca flavescens). The models are scaled to produce an index of habitat suitability between 0 (unsuitable habitat) to 1 (optimally suitable habitat) for riverine, lacustrine, and palustrine habitat in the 48...
Habitat suitability index models: redhead (wintering)
Rebecca J. Howard, Harold A. Kantrud
1983, FWS/OBS 82/10.53
The redhead is a North American waterfowl species with economic as well as ecological importance. It is highly desired by hunters. Retrieved redhead kill in the United States averaged 143,000 birds during the three waterfowl seasons from 1975 to 1977 (U.S. Department of the Interior 1981a, 1981b). Populations on the...
Use of flumes in measuring discharge
F. A. Kilpatrick, V.R. Schneider
1983, Techniques of Water-Resources Investigations 03-A14
Flumes for measuring discharge are usually of two general groups-critical-flow flumes and supercritical-flow flumes. In this chapter, the underlying design principles for each group are discussed; the most commonly used flumes are described and their discharge ratings presented. There is also discussion of considerations in choosing and fitting the appropriate...