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Page 4671, results 116751 - 116775

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Not all publications have extents, not all extents are completely accurate
Habitat Suitability Index Models: Northern Gulf of Mexico brown shrimp and white shrimp
Robert Eugene Turner, Michael S. Brody
1983, FWS/OBS 82/10.54
A review and synthesis of existing information were used to develop estuarine habitat models for brown shrimp (Penaeus aztecus) and white shrimp (Penaeus setiferus). The models are scaled to produce an index of habitat suitability between 0 (unsuitable habitat) to 1 (optimally suitable habitat) for estuarine areas of the northern...
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...
A surface vitrinite reflectance anomaly related to Bell Creek oil field, Montana, U.S.A.
C.E. Barker, M.C. Dalziel, M. J. Pawlewicz
1983, Open-File Report 83-826
Vitrinite reflectance measurements from surface samples of mudrock and coal show anomalously high values over the Bell Creek oil field. The average vitrinite reflectance (Rm) increases to a maximum of 0.9 percent over the field against background values of about 0.3 percent. The Rm anomaly coincides with a geochemical anomaly...
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...
Mineral resource potential map of the Dolly Ann Roadless Area, Alleghany County, Virginia
Frank G. Lesure, Jay G. Jones
1983, Miscellaneous Field Studies Map 1358-D
The Dolly Ann Roadless Area comprises 7,900 acres (3,200 ha) in the George Washington National Forest in the Valley and Ridge physiographic province of west-central Virginia. The area is at the southern ·end of Warm Springs Mountain in Alleghany County just northeast of Covington, the county seat (index map). U.S....
Habitat Suitability Index Models: Coho salmon
Thomas E. McMahon
1983, FWS/OBS 82/10.49
The coho salmon (Oncorhynchus kisutch) is native to the northern Pacific Ocean, spawning and rearing in streams from Monterey Bay, California, to Point Hope, Alaska, and southward along the Asiatic coast to Japan. Its center of abundance in North America is from Oregon to Alaska (Briggs 1953; Godfrey 1965; Hart...
Habitat Suitability Index Models: Williamson's sapsucker
Patrick J. Sousa
1983, FWS/OBS 82/10.47
The Williamson's sapsucker (Sphyrapicus thyroideus) " ... inhabits middle elevation pine forests and high elevation spruce-fir forests" (Crockett 1975:111) as well as aspen stands (Hansley 1977; Hansley, pers. comm.) throughout its range in the western Uni ted States. The Rocky Mounta in subspecies (S. t. nataliae) exhibits altitudinal and latitudinal...
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...
Biology, population structure, and estimated forage requirements of lake trout in Lake Michigan
Gary W. Eck, LaRue Wells
1983, Technical Paper 111
Data collected during successive years (1971-79) of sampling lake trout (Salvelinus namaycush) in Lake Michigan were used to develop statistics on lake trout growth, maturity, and mortality, and to quantify seasonal lake trout food and food availability. These statistics were then combined with data on lake trout year-class strengths and...
Habitat Suitability Index Models: Clapper rail
James C. Lewis, Russell L. Garrison
1983, FWS/OBS 82/10.51
A review and synthesis of existing information were used to develop a model suitable for evaluating the quality of coastal habitat of clapper rails (Rallus longirostris). The model is scaled to produce an index of habitat suitability between 0 (unsuitable habitat) and 1 (optimally suitable habitat) for coastal 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: Baird's sparrow
Patrick J. Sousa, W. Neil McDonal
1983, FWS/OBS 82/10.44
A review and synthesis of existing information were used to develop a habitat model for Baird's sparrow. The model is scaled to produce an index of suitability between 0 (unsuitable habitat) to 1 (optimally suitable habitat) for Baird's sparrow habitat in the Northern Great Plains. Habitat suitability indices are designed...
Habitat Suitability Index Models: Southern red-backed vole (western United States)
Arthur W. Allen
1983, FWS/OBS 82/10.42
Habitat preferences of the southern red-backed vole (Clethrionomys gapperi) are described in this publication, which is one of a series of Habitat Suitability Index (HSI) models. A review and synthesis of the literature is followed by development of a model of the species-habitat requirements of the southern red-backed vole. Habitat suitability...