Considerations for monitoring raptor population trends based on counts of migrants
K. Titus, M.R. Fuller, J.L. Ruos
B-U. Meyburg, R.D. Chancellor, editor(s)
1989, Book chapter, Raptors in the Modern World: Proceedings of the III World Conference on Birds of Prey and Owls
Various problems were identified with standardized hawk count data as annually collected at six sites. Some of the hawk lookouts increased their hours of observation from 1979-1985, thereby confounding the total counts. Data recording and missing data hamper coding of data and their use with modern analytical techniques....
Buteos
K. Titus, M.R. Fuller, D.F. Stauffer, J.R. Sauer
Beth Giron Pendleton, Maurice N.= LeFranc Jr., Mary Beth Moss, editor(s)
1989, Book chapter, Proceedings of the Northeast Raptor Management Symposium and Workshop
Red-tailed, red-shouldered, and broad-winged hawks nest throughout the 11 northeastern states, and red-tailed, red-shouldered, and rough-legged hawks winter in this region. Historical and present ranges of these species are similar, although red-shouldered and broad-winged hawk ranges now have more vacant patches at a local and regional level. Only...
Northern Great Plains
R.L. Pederson, Dennis G. Jorde, S. Gay Simpson
L.M. Smith, R.L. Pederson, R.M. Kaminski, editor(s)
1989, Book chapter, Habitat Management for Migrating and Wintering Waterfowl in North America
We describe waterfowl populations and habitats in the Northern Great Plains; relate habitats and habitat managemnet pratices to annual cycle requirements of migrating and wintering ducks and geese; and suggest management approaches for wintering and migrating waterfowl....
Mississippi Alluvial Valley
K. J. Reinecke, R.M. Kaminski, D.J. Moorhead, J.D. Hodges, J.R. Nasser
L.M. Smith, R.L. Pederson, R.M. Kaminski, editor(s)
1989, Book chapter, Habitat Management for Migrating and Wintering Waterfowl in North America
Available data are summarized according to the following major topics: (1) characteristics of the Mississippi Alluvial Valley (MAV); (2) waterfowl populations associated with the MAV; (3) habitat requirements of migrating and wintering waterfowl in the MAV; (4) current habitat management practices in the MAV, including croplands, moist-soil impoundments, and...
Lead contamination of golden eagles Aquila chrysaetos within the range of the California condor Gymnogyps californianus
P.H. Bloom, J. M. Scott, O. H. Pattee, M. R. Smith
B-U. Meyburg, R.D. Chancellor, editor(s)
1989, Book chapter, Raptors in the Modern World: Proceedings of the III World Conference on Birds of Prey and Owls
Blood samples were taken from 66 golden eagles from June 1985 to January 1986 and analyzed for their lead content. Thirty-nine percent had blood lead levels greater than 0.2 ppm, indicating exposure to environmental lead. Within the exposed group, 3 had blood levels exceeding 0.6 ppm and one...
Snowy owl
D.G. Smith, D. H. Ellis
Beth Giron Pendleton, Maurice N.= LeFranc Jr., Mary Beth Moss, editor(s)
1989, Book chapter, Proceedings of the Northeast Raptor Management Symposium and Workshop.
The snowy owl is a rare to uncommon, irregular winter visitor in the northeastern United States, decreasing southward in abundance except during incursion years, when it is more common and widely distributed. Although snowy owls are recorded in northern New England every winter, major incursions occur at approximately three...
A coded tracking telemetry system
P.W. Howey, W.S. Seegar, M.R. Fuller, K. Titus
Charles J. Amlaner Jr., editor(s)
1989, Book chapter, Biotelemetry X: Proceedings of the Tenth International Symposium on Biotelemetry
We describe the general characteristics of an automated radio telemetry system designed to operate for prolonged periods on a single frequency. Each transmitter sends a unique coded signal to a receiving system that encodes and records only the appropriater, pre-programmed codes. A record of the time of each...
Aerial tracking of radio-marked white-tailed tropicbirds over the Caribbean Sea
M.R. Fuller, H.H. Obrecht III, C.J. Pennycuick, F.C. Schaffner
Charles J. Amlaner Jr., editor(s)
1989, Book chapter, Biotelemetry X: Proceedings of the Tenth International Symposium on Biotelemetry
We radio-marked nesting white-tailed tropicbirds at Culebra National Wildlife Refuge, Puerto Rico, and tracked them from a Cessna 182 during flights over the open sea. Locations of the birds were determined using standard aerial telemetry techniques for side-facing Yagi antennas. We used strut-mounted, 4-element Yagi antennas connected to...
Falcons
L.S. Schueck, M.R. Fuller, W.S. Seegar
1989, Book chapter, Proceedings of the Northeast Raptor Management Symposium and Workshop
Four species of Falco occur in the northeastern United States. The gyrfalcon is a rare winter visitor. The peregrine falcon federally listed as endangered, is a migrant and through reestablishment is breeding and wintering locally throughout the northeast. The merlin is a migrant and uncommon winter bird....
Status and conservation of North American raptors migrating to the neotropics
S.E. Senner, M.R. Fuller
B-U. Meyburg, R.D. Chancellor, editor(s)
1989, Book chapter, Raptors in the Modern World: Proceedings of the III World Conference on Birds of Prey and Owls
Aquatic birds and selenium in the San Joaquin Valley and San Francisco Bay
H. M. Ohlendorf, R. L. Hothem
Alice Q. Howard, editor(s)
1989, Book chapter, Selenium and agricultural drainage: Implications for San Francisco Bay and the California environment - Proceedings of the third selenium symposium, March 15, 1986, Berkeley, California
No abstract available....
Selected toxic trace-element and pesticide concentrations in water, sediment, and biota from the southern Tulare Lake area near Kern National Wildlife Refuge, California
R. A. Schroeder, D. Palawski, J. P. Skorupa
A.Q Howard, editor(s)
1989, Book chapter, Selenium and Agricultural Drainage: Implications for San Francisco Bay and the California Environment. Proceedings of the Fourth Selenium Symposium, Berkeley, California
Selenium and small mammal populations at Kesterson reservoir
D. R. Clark Jr.
Alice Q. Howard, editor(s)
1989, Book chapter, Selenium and Agricultural Drainage: Implications for San Francisco Bay and the California Environment. Proceedings of the Fourth Selenium Symposium, March 21, 1987, Berkeley, California
Waterfowl mortality factors
J.D. Nichols
Kirk H. Beattie, editor(s)
1989, Book chapter, Sixth International Waterfowl Symposium
The objectives of waterfowl management in North America involve population size and harvest. Any management action intended to influence population size must do so through one of four demographic variables: reproduction, mortality, immigration, and emigration. Mortality is especially important because hunting can be strongly influenced by management....
Environmental contaminants and diving ducks in San Francisco Bay
H. M. Ohlendorf, Katherine C. Marois, Roy W. Lowe, Thomas E. Harvey, P.R. Kelly
A.Q Howard, editor(s)
1989, Book chapter, Selenium and Agricultural Drainage: Implications for San Francisco Bay and the California Environment. Proceedings of the Fourth Selenium Symposium
Concentrations of selenium, mercury, and cadmium were measured in surf scoters in San Francisco Bay to assess possible effects of contaminants on health or reproduction of diving ducks....
Reproductive success of birds in the grasslands, 1986
R. L. Hothem
A.Q Howard, editor(s)
1989, Book chapter, Selenium and Agricultural Drainage: Implications for San Francisco Bay and the California Environment. Proceedings of the Fourth Selenium Symposium
This paper deals with the effects of contaminants, including selenium, in agricultural drainwater on reproduction of aquatic birds in the Grasslands area of western Merced County, California...
Western habitats - Session summary
K. Titus, M.R. Fuller
Beth Giron Pendleton, editor(s)
1989, Book chapter, Proceedings of the Western Raptor Management Symposium and Workshop
Determining the status of all habitats in the nine western states considered in this symposium is a difficult task. The authors of habitat status papers commented that the diversity of habitat classification systems limited their ability to relate habitat status to raptors. Differences of scale, objectives and survey...
Bald eagle and osprey
Charles J. Henny, R.G. Anthony
Beth Giron Pendleton, editor(s)
1989, Book chapter, Proceedings of the Western Raptor Management Symposium and Workshop
Bald eagles nested in all nine western states during recent years (about 19% of known U.S. population in 1982). The known numbers of nesting pairs in the west increased substantially in the last 10 years and totaled 584 in 1986. Much of the increase was due to more intensive survey...
Tidal and nontidal wetlands of northern Atlantic states
Dennis G. Jorde, J. R. Longcore, P.W. Brown
L.M. Smith, R.L. Pederson, R.M. Kaminski, editor(s)
1989, Book chapter, Habitat Management for Migrating and Wintering Waterfowl in North America
Summary of availability, habitat use, and management of waterfowl habitat during migration and winter in northern Atlantic states....
Bioaccumulation and effects of selenium in wildlife
H. M. Ohlendorf
L.W. Jacobs, editor(s)
1989, Book chapter, Selenium in Agriculture and the Environment
Selenium in relation to wildlife and agricultural drainage water
H. M. Ohlendorf, J. P. Skorupa
1989, Book chapter, Proceedings of the Fourth International Symposium on Uses of Selenium and Tellurium
Current status of the Puerto Rican parrot conservation program
G.D. Lindsey, M.K. Brock, M.H. Wilson
1989, Book chapter, Wildlife Management in the Caribbean Islands, Proceedings of the Fourth Meeting of Caribbean Foresters
Kirtland's warblers on their wintering grounds in the Bahama archipelago--a preliminary report
P.W. Sykes Jr.
1989, Book chapter, At the Crossroads--Extinction or Survival. Proceedings of the Kirtland's Warbler Symposium, February 9-11, 1989
1989 Exclusive Economic Zone symposium: Summary and recommendations
M. Lockwood, G. W. Hill
1989, Marine Geodesy (13) 347-350
The fourth in a series of biennial national Exclusive Economic Zone symposia was held on November 14–16, 1989. The purpose of the meeting was to examine ongoing and planned mapping and research activities in the ocean waters of the United States. Approximately 220 individuals attended the...
FOLD, federally owned Landsat data, September 1989
Water Resources Division, U.S. Geological Survey
1989, Report
The FOLD data base lists all Landsat CCT's held by participating agencies. Duplicate CCT listings are maintained when more than one agency holds identical CCT's; this permits the user to select the most convenient site to obtain a copy. Copies of the listing are distributed by EDC to contributing agencies...
