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Page 4822, results 120526 - 120550

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Publication Extents

Not all publications have extents, not all extents are completely accurate
The use of natural vs. man-modified wetlands by shorebirds and waterbirds
R. Michael Erwin, Malcolm Coulter, H. Cogswell
1986, Colonial Waterbirds (9) 137-138
The loss of wetlands continues world-wide. The impact especially has been felt in coastal areas, but water management elsewhere has resulted in marked reductions of aquatic bird populations. Concern for wetland management led to the convocation of a symposium on waterbird and shorebird use of natural and man-modified...
Bird poisoning from misuse of the carbamate Furadan in a Texas rice field
Edward L. Flickinger, C. A. Mitchell, Donald H. White, E. J. Kolbe
1986, Wildlife Society Bulletin (14) 59-62
More than 100 birds consisting largely of dickcissels and savannah sparrows, as well as 9 other species of songbirds and sandpipers, died from feeding on planted rice seed treated illegally with Furadan 4F. Brain ChE activity was depressed between 32-85% in 44% of the birds. Carbofuran residues in GI tract...
Radiotelemetry locates wintering grounds of DDE-contaminated black-crowned night-herons
Charles J. Henny, L. J. Blus
1986, Wildlife Society Bulletin (14) 236-241
This study was designed to determine if night-herons nesting at Ruby Lake, Nevada, shared a common wintering area with lesser contaminated night-herons nesting farther north in Oregon and Idaho. Radiotelemetry (29 transmitters) and banding studies indicated that the lesser-contaminated Oregon-Idaho night-herons wintered primarily in coastal Mexico (mean 22-23'N latitude), while...
Trap-related injuries to gray wolves in Minnesota
David W. Kuehn, Todd K. Fuller, L. David Mech, William J. Paul, Steven H. Fritts, William E. Berg
1986, Journal of Wildlife Management (50) 90-91
Gray wolves (Canis lupus) captured in traps with toothed jaws offset 1.8 cm incurred fewer injuries than those captured in 3 other types of steel traps. Few wolves seriously damaged canine or carnassial teeth while in traps....
Hatching success of Caspian terns nesting in the lower Laguna Madre, Texas, USA
C. A. Mitchell, T. W. Custer
1986, Colonial Waterbirds (9) 86-89
The average clutch size of Caspian Terns nesting in a colony in the Lower Laguna Madre near Laguna Vista, Texas, USA in 1984 was 1.9 eggs per nest. Using the Mayfield method for calculating success, one egg hatched in 84.1% of the nests and 69.8% of the eggs laid hatched....
Effects of liberalized harvest regulations on wood ducks in the Atlantic Flyway
Fred A. Johnson, J.E. Hines, Frank Montalbano III, J.D. Nichols
1986, Wildlife Society Bulletin (14) 383-388
Beginning in 1977the FWS provided southern Atlantic Flyway states the opportunity to liberalize wood duck harvest regulations. Harvest subsequently increased throughout the flyway but appeared to be more a function of population growth than changes in regulations. In the South, harvest rate increased only slightly for young males and no...
Organochlorine contaminants in passeriformes and other avian prey of the peregrine falcon in the western United States
L.R. DeWeese, L. C. McEwen, Gary L. Hensler, B.E. Petersen
1986, Environmental Toxicology and Chemistry (5) 675-693
About 1,150 individuals of 38 species of Passeriformes and other small birds were collected in 1980 at 36 locations in eight western U.S. states for organochlorine (OC) chemical analysis. The bird carcasses (less beak, tarsi, gastrointestinal tract, and feathers) were combined by species and location (4 to 15 specimens per...
Lead concentrations and reproductive success in European starlings Sturnus vulgaris nesting within highway roadside verges
C.E. Grue, D. J. Hoffman, W. N. Beyer, L.P. Franson
1986, Environmental Pollution (Series A) (42) 157-182
In 1981, the authors studied lead concentrations and reproductive success in free-living European starlings Sturnus vulgaris nesting within the verges of two Maryland highways with different traffic volumes, Route 197(average daily traffic volume[ADT] = 10,800 vehicles) and the Baltimore-Washington Parkway (ADT=52,500 vehicles) and a nearby control area. Concentrations (mg kg-1...
Effect of Orthene on an unconfined population of the meadow vole (Microtus pennsylvanicus)
David A. Jett, James D. Nichols, James E. Hines
1986, Canadian Journal of Zoology (64) 243-250
The possible impact on Microtus pennsylvanicus of ground applications of Orthene® insecticide was investigated in old-field habitats in northern Maryland during 1982 and 1983. The treatment grids in 1982 and 1983 were sprayed at 0.62 and 0.82 kg active ingredient/ha, respectively. A capture–recapture design robust to unequal capture probabilities was utilized to estimate population...
Range extension for the gray-backed tern in the western Pacific
R. B. Clapp, J.J. Hatch
1986, Colonial Waterbirds (9) 110-112
About 75 pairs of Gray-backed Terns (Sterna lunata) nested on Guguan in the Northern Mariana Islands in 1979. This locality represents a breeding range extension of about 2000 km to the west of the westernmost previously known colony. The species is also reported for the first time from Uracas, northernmost...
Demography, environmental uncertainty, and the evolution of mate desertion in the snail kite
Steven Beissinger
1986, Ecology (67) 1445-1459
The Snail Kite (Rostrhamus sociabilis), an endangered hawk, has a unique mating system in Florida (Beissinger and Snyder 1987): when food is abundant, males or females desert their mates at nearly equal frequency (ambisexual mate desertion) in the midst of a nesting cycle. I examined the demographic and environmental constraints...