Organochlorines and mercury in eggs of coastal terns and herons in California, USA
H. M. Ohlendorf, T. W. Custer, Roy W. Lowe, M. Rigney, E. Cromartie
1988, Colonial Waterbirds (11) 85-94
In San Franciso Bay, California, USA, concentrations of DDE and mercury in eggs differed among Caspian Tern, Forster's Tern, Black-crowned Night-Heron, and Snowy Egret in 1982. Geometric mean DDE concentrations were higher (P < 0.05) in Caspian Tern eggs (6.93 ppm, wet weight) than in eggs of other species (1.92-2.84...
Reproductive effects of nest-marking studies in an American white pelican colony
D.E. Boellstorff, D. W. Anderson, H. M. Ohlendorf, E.J. O’Neill
1988, Colonial Waterbirds (11) 215-219
In 1981 and 1982 we studied the reproductive success of American White Pelicans in the Klamath Basin of northern California. We observed that reproductive success at one colony became reduced in 1981 when we entered that colony to collect eggs for chemical analysis and to mark nests for an...
Combined extraction-cleanup column chromatographic procedure for determination of dicofol in avian eggs
A. J. Krynitsky, C. J. Stafford, Stanley N. Wiemeyer
1988, Journal of the Association of Official Analytical Chemists (71) 539-542
Dicofol in avian eggs was completely oxidized to dichlorobenzophenone (DCBP) when a hexane Soxhlet extraction procedure was used. This degradation did not occur with other avian tissues (muscle and liver). For this reason, a combined extraction-cleanup column chromatographic procedure, without added heat, was developed for the determination of dicofol in...
Brain cholinesterase activity of apparently normal wild birds
E. F. Hill
1988, Journal of Wildlife Diseases (24) 51-61
Organophosphorus and carbamate pesticides are potent anticholinesterase substances that have killed large numbers of wild birds of various species. Cause of death is diagnosed by demonstration of depressed brain cholinesterase (ChE) activity in combination with chemical detection of anticholinesterase residue in the affected specimen. ChE depression is determined by comparison...
Correlates of nest-defense behavior of common terns
R.M. Erwin
1988, Journal of Field Ornithology (59) 135-142
Nest-defense behavior was studied at seven Common Tern (Sterna hirundo) colonies in southern coastal New Jersey during June and July 1981. Data were collected weekly on numbers of adults, nests, eggs, and young in relation to the frequency and intensity of dive attacks on a human intruder by nesting...
Variance estimation for the Federal Waterfowl Harvest Surveys
P.H. Geissler
1988, American Statistical Association, Proceedings of the Section on Survey Research Methods (1988) 698-703
The Federal Waterfowl Harvest Surveys provide estimates of waterfowl harvest by species for flyways and states, harvests of most other migratory game bird species (by waterfowl hunters), crippling losses for ducks, geese, and coots, days hunted, and bag per hunter. The Waterfowl Hunter Questionnaire Survey separately estimates the harvest...
Multivariate curve-fitting in GAUSS
C.M. Bunck, G.W. Pendleton
1988, American Statistical Association, Proceedings of the Statistical Computing Section (1988) 325-328
Multivariate curve-fitting techniques for repeated measures have been developed and an interactive program has been written in GAUSS. The program implements not only the one-factor design described in Morrison (1967) but also includes pairwise comparisons of curves and rates, a two-factor design, and other options. Strategies for selecting...
Mate desertion in the snail kite
S. R. Beissinger, N.F.R. Snyder
1988, Animal Behaviour (35) 477-487
Mate desertion during the breeding cycle was documented at 28 of 36 (78%) snail kite, Rostrhamus sociabilis nests in Florida between 1979 and 1983. Offspring mortality occurred at only one deserted nest, however. Parents that were deserted by their mates continued to care for their young until independence (3?5...
Mortality and hematology associated with the ingestion of one number four lead shot in black ducks, Anas rubripes
D.J. Pain, Barnett A. Rattner
1988, Bulletin of Environmental Contamination and Toxicology (40) 159-164
No abstract available....
Conservation of Hawaii's vanishing avifauna
J. M. Scott, C. B. Kepler, Charles van Riper III, S.I. Fefer
1988, BioScience (38) 238-253
No abstract available....
[Book review] Helping and communal breeding in birds: ecology and evolution by Jerram L. Brown
R. B. Clapp
1988, Naturalist Review (1988) 4
Effects of monocrotophos and fenthion on discrimination acquisition and reversal in northern bobwhite (Colinus virginianus)
J.F. Kreitzer, W. James Fleming
1988, Environmental Toxicology and Chemistry (7) 237-240
Adult male northern bobwhite (Colinus virginianus) were fed diets containing organo-phosphorus pesticides, and the birds' discrimination acquisition and reversal performance was evaluated. The birds received the pesticide-laced diets continually, beginning 2 d before behavioral testing and ending after the birds completed the test series consisting of an acquisition and 10...
Selenium toxicosis in wild aquatic birds
H. M. Ohlendorf, A. W. Kilness, J. L. Simmons, R. K. Stroud, D. J. Hoffman, John F. Moore
1988, Journal of Toxicology and Environmental Health (24) 67-92
Severe gross and microscopic lesions and other changes were found in adult aquatic birds and in embryos from Kesterson Reservoir (a portion of Kesterson National Wildlife Refuge), Merced County, Calif., during 1984. Adult birds from that area were emaciated, had subacute to extensive chronic hepatic lesions, and had excess fluid...
Embryotoxic and teratogenic effects of selenium in the diet of mallards
D. J. Hoffman, G. H. Heinz
1988, Journal of Toxicology and Environmental Health (24) 477-490
Mallards (Anas platyrhynchos) were fed a control diet, diets containing 1, 5, 10, or 25 ppm Se as sodium selenite, or a diet containing 10 ppm Se as seleno-DL-methionine in the first of two experiments. Selenium at 10 ppm as selenomethionine or 25 ppm as sodium selenite caused a 40-44%...
Selawik National Wildlife Refuge land cover mapping project users guide
Carl J. Markon
1988, Report
Title III of the Alaska National Interest Lands Conservation Act (ANILCA, 1980) established the Selawik National Wildlife Refuge (SNWR). Section 304 of the Act requires the Secretary of Interior to "prepare, and from time to time revise, a comprehensive conservation plan" for the refuge. Before developing a plan for the...
Migration, Harvest, and Population Characteristics of Mourning Doves Banded in the Western Management Unit, 1964-1977
R. E. Tomlinson, David D. Dolton, H.M. Reeves, J.D. Nichols, L.A. McKibben
1988, Fish and Wildlife Technical Report 13
An annotated bibliography of field studies conducted on the Patuxent Wildlife Research Center: 1940-1987
R.J. Hall
1988, Biological Report 88(2)
The brown tree snake, Boiga irregularis, a threat to Pacific Islands
T. H. Fritts
1988, Biological Report 88(31)
Chlorpyrifos Hazards to Fish, Wildlife, and Invertebrates: A Synoptic Review
E.W. Odenkirchen, R. Eisler
1988, Contaminant Hazard Reviews Report 13 ; Biological Report 85(1.13).
Lead Hazards to Fish, Wildlife, and Invertebrates: A Synoptic Review
R. Eisler
1988, Contaminant Hazard Reviews Report 14 ; Biological Report 85(1.14)
National atlas of coastal waterbird colonies in the contiguous United States, 1976-82
J. A. Spendelow, S.R. Patton
1988, Biological Report 88 (5).
Demographic Characteristics of a Maine Woodcock Population and Effects of Habitat Management
T.J. Dwyer, G.F. Sepik, E.L. Derleth, D.G. McAuley
1988, Fish and Wildlife Research No. 4
A population of American woodcock (Scolopax minor) was studied on a 3,401-ha area of the Moosehorn National Wildlife Refuge in northeastern Maine from 1976 through 1985. During 1976-83, from 4 to 64 clearcuts were created each year, opening up large contiguous blocks of forest. A combination of mist nets, ground...
Arsenic Hazards to Fish, Wildlife, and Invertebrates: A Synoptic Review
R. Eisler
1988, Contaminant Hazard Reviews Report 12 ; Biological Report 85(1.12).
Bird Damage to Sunflower in North Dakota, South Dakota, and Minnesota, 1979-1981
R. L. Hothem, R. W. DeHaven, S.D. Fairaizl
1988, Fish and Wildlife Technical Report No. 15
Interpreting residues of petroleum hydrocarbons in wildlife tissues
R.J. Hall, N. C. Coon
1988, Biological Report 88(15)
A brief guidance publication that explains how to evaluate reports of petroleum concentrations in animal tissue. Sections on background, sampling and handling of samples, reports and interpretation, when to analyze for hydrocarbons, and how to interpret the magnitude of the concentrations....
