Publications
This is a list of publications written by Patuxent employees since Patuxent opened in 1939. To search for Patuxent's publications by author or title, please click below to go to the USGS Publication Warehouse.
Filter Total Items: 8128
Toxicity of dietary lead in young cockerels Toxicity of dietary lead in young cockerels
Day-old cockerels received 1850 ppm dietary lead for 4 wks. Blood delta-aminolevulinic acid dehydratase (ALAD) activity was reduced to 1.6% of control activity by the end of the study. Hemoglobin concentration (Hb) in lead-exposed cockerels was significantly less than that of controls at 7, 14, and 28 days, and packed cell volume (PCV) was significantly reduced at 14 days. Blood lead...
Authors
J. Christian Franson, Thomas W. Custer
Fall and winter homesite use by wolves in northeastern Minnesota Fall and winter homesite use by wolves in northeastern Minnesota
Post-abandonment homesite use by wolves (Canis lupus) was studied by radio-tracking and simulated howling in two packs in Superior National Forest, Minnesota. Pups, yearlings, and adults returned intermittently to former homesites up to four months after abandonment, usually after prolonged separation from the pack in early fall. Returns sometimes exceeded one week. Preferred summer...
Authors
F.H. Harrington, L.D. Mech
Care of nestlings by wild female starlings exposed to an organophosphate pesticide Care of nestlings by wild female starlings exposed to an organophosphate pesticide
(1) Our objective was to determine the effect of exposure to an organophosphate pesticide (OP), dicrotophos (3-hydroxy-N,N-dimethyl-cis-scrotonamide dimethyl phosphate), on care of nestlings by wild female starlings (Sturnus vulgaris). (2) We selected twelve pairs of active nests based on synchrony in the reproductive cycle. When nestlings were 10 days old (day 10), adult males were...
Authors
C.E. Grue, G.V.N. Powell, M.J. McChesney
Black ducks and DDE: Review and status Black ducks and DDE: Review and status
No abstract available.
Authors
J. R. Longcore, Rey C. Stendell
A workshop on raptor management and biology in Alaska and western Canada - A summary A workshop on raptor management and biology in Alaska and western Canada - A summary
A workshop on raptor management and biology in Alaska and western Canada was held on February 20, 1981, in Anchorage, Alaska. It was attended by about 50 biologists. The following twofold prime objective was established: (1) To prevent any raptor species from becoming extirpated in any significant part of its present range; and (2) to establish or maintain population levels consistent...
Authors
Philip F. Schempf, Mark R. Fuller
Examination of woodcock nest sites in central Pennsylvania Examination of woodcock nest sites in central Pennsylvania
Evidence is given to support Iow selectivity in choice of nest sites by woodcock (Philohela minor). Habitat characteristics measured at 30 woodcock nest sites were compared with non-nest control sites in Huntingdon County, central Pennsylvania. Mean nest density per year was 1/4.8 ha within the 54-ha study area. Of 14 characteristics measured, higher shrub-stem density at nests was the...
Authors
R.A. Coon, B. Kenneth Williams, J.S. Lindzey, J.L. George
Whooping crane production at the Patuxent Wildlife Research Center, 1967-1981 Whooping crane production at the Patuxent Wildlife Research Center, 1967-1981
No abstract available.
Authors
S.R. Derrickson, J. W. Carpenter
Bedrock geologic control of sensitivity of aquatic ecosystems in the United States to acidic deposition Bedrock geologic control of sensitivity of aquatic ecosystems in the United States to acidic deposition
No abstract available.
Authors
S. A. Norton, J.J. Akielaszek, T.A. Haines, K. L. Stromborg, J. R. Longcore
A.B.A. Checklist: Birds of Continental United States and Canada A.B.A. Checklist: Birds of Continental United States and Canada
The 'Summary' in this edition of the A BA Checklist has been greatly expanded to include all properly documented records for each accidental species. These records are published, except for a very few recent ones which are in press or in preparation. Emphasis is on records supported by specimens or photographs, but sight records are also included. To make these accounts more useful to
Authors
G.S. Keith, L.G. Balch, D.D. Gibson, R.G. McCaskie, C.S. Robbins, A. Small, P.W. Sykes, J.A. Tucker
Breeding-ground habitat conditions and the survival of mallards Breeding-ground habitat conditions and the survival of mallards
The relationship between habitat conditions in prairie breeding areas of North America and mallard (Anas platyrhynchos) survival rates was investigated. Annual survival-rate estimates for mallards generally were higher during years of high May pond numbers and low mallards-per-pond ratios than during years of low pond numbers and high ratios. This tendency was most pronounced among males...
Authors
James D. Nichols, Richard S. Pospahala, James E. Hines
Residues of DDT, dieldrin, and heptachlor in earthworms during two years following application Residues of DDT, dieldrin, and heptachlor in earthworms during two years following application
No abstract available.
Authors
Charles D. Gish, Donald L. Hughes
Bat-insecticide problems: an update Bat-insecticide problems: an update
No abstract available.
Authors
D. R. Clark