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
Transport case for incubated eggs Transport case for incubated eggs
No abstract available.
Authors
R.C. Erickson
Nationwide residues of organochlorine compounds in wings of adult mallards and black ducks, 1979-80 Nationwide residues of organochlorine compounds in wings of adult mallards and black ducks, 1979-80
Organochlorine residues in wings of adult mallards (Anas platyrhynchos) and black ducks (Anas rubripes) were monitored nationwide from birds harvested during the 1979-80 hunting season. DDE residues were found in all samples. DDT residues had declined from levels reported in 1976 on a flyway basis but the decline was significant (P less than 0.05) only in the Pacific Flyway. Levels of...
Authors
B. W. Cain
Summary of foreign gamebird liberations 1969-1978 Summary of foreign gamebird liberations 1969-1978
No abstract available.
Authors
R.C. Banks
Captive propagation of bald eagles at Patuxent Wildlife Research Center and introductions into the wild, 1976-80 Captive propagation of bald eagles at Patuxent Wildlife Research Center and introductions into the wild, 1976-80
One to 5 pairs of the Bald Eagle (Haliaeetus leucocephalus) were in the captive propagation project at Patuxent Wildlife Research Center during 1976-80. Four pairs produced viable eggs or young by natural mating in one or more years. Pairs laid second clutches 9 of 11 times when their first clutches were collected within 8 days of clutch completion. Sixty-nine percent of fertile...
Authors
Stanley N. Wiemeyer
Elevational record for Euderma maculatum (Chiroptera: Vespertilionidae) Elevational record for Euderma maculatum (Chiroptera: Vespertilionidae)
No abstract available.
Authors
R.P. Reynolds
A decade of data from a single wolf A decade of data from a single wolf
No abstract available.
Authors
L.D. Mech
Inorganic and organic mercury chloride toxicity to Coturnix: sensitivity related to age and quantal assessment of physiologic responses Inorganic and organic mercury chloride toxicity to Coturnix: sensitivity related to age and quantal assessment of physiologic responses
The toxicities of mercuric chloride (HgCl(,2)) and methylmercuric chloride (CH(,3)HgCl) were compared for coturnix (Coturnix coturnix japonica) from hatching to adulthood. Comparisons were based on: (1) Median lethal dosages (LD50) derived by administering single peroral and single intramuscular dosages of mercury, (2) median lethal concentrations (LC50) derived by feeding mercury for 5...
Authors
E. F. Hill
Effect of time of day on bird activity Effect of time of day on bird activity
Breeding season activity, based on detections recorded on more than a million 3. minute Breeding Bird Survey stops, reaches a peak for most species during the hour centered at sunrise or in the following hour. Activity of most species then declines gradually as the morning progresses. When large samples are considered, activity patterns for a given species are quite constant from year to...
Authors
C.S. Robbins
Reappraisal of the Winter Bird-Population Study technique Reappraisal of the Winter Bird-Population Study technique
Standardized morning and afternoon counts were conducted in two deciduous forest plots during seven winters. Morning counts yielded more species than afternoon counts, as well as higher counts of most species. A minimum of eight visits is recommended. Six visits yielded 2% to 5% fewer species, depending on the size and bird population of the study plot. Cumulative means for individual...
Authors
C.S. Robbins
Saving the Newell's shearwater Saving the Newell's shearwater
No abstract available.
Authors
J.L. Sincock