Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16780
Canine tooth wear in captive big brown bats (Eptesicus fuscus)
No abstract available.
Authors
D. R. Clark
Dynamics of storage of organochlorine pollutants in herring gulls
Several organochlorine pollutants were studied over the period of one annual cycle in caged juvenile and wild-collected adult herring gulls (Lagus argentatus) from Lake Michigan. Fish, mostly alewives (Alosa pseudoharengus), comprised the major year-round food items in the wild; alewives were also fed to the caged juveniles. Fish residues averaged around 3 mg/kg of p,p'-DDE, 2 mg/kg p,p'DDT + p,p'
Authors
D. W. Anderson, J.J. Hickey
Acute oral toxicity and tissue residues of thallium sulfate in golden eagles, Aquila chrysaetos
No abstract available.
Authors
J. R. Bean, R. H. Hudson
Determining population size of territorial red-winged blackbirds
Population sizes of territorial male red-winged blackbirds (Agelaius phoeniceus) were determined with counts of territorial males (area count) and a Petersen-Lincoln Index method for roadsides (roadside estimate). Weather conditions and time of day did not influence either method. Combined roadside estimates had smaller error bounds than the individual transect estimates and were not hindered by
Authors
P.H. Albers
Fatal vaccine-induced canine distemper virus infection in black-footed ferrets
Four black-footed ferrets that were live-trapped in South Dakota and transported to the Patuxent Wildlife Research Center died within 21 days after vaccination with modified live canine distemper virus. Immunofluorescence, European ferret inoculation, virus isolation attempts, and serum-neutralization tests indicated insufficient attenuation of the vaccine for this species.
Authors
J. W. Carpenter, M.J.G. Appel, R.C. Erickson, M.N. Novilla
Delayed molt of primary feathers of mourning doves during winter
No abstract available.
Authors
J.W. Ault, V.J. Heller, J. C. Lewis, J.A. Morrison
Mathematical models for non-parametric inferences from line transect data
A general mathematical theory of line transects is developed which supplies a framework for nonparametric density estimation based on either right angle or sighting distances. The probability of observing a point given its right angle distance (y) from the line is generalized to an arbitrary function g(y). Given only that g(0) = 1, it is shown there are nonparametric approaches to density estimat
Authors
K.P. Burnham, D.R. Anderson
The seventy-sixth Audubon Christmas bird count. 350. Back Bay National Wildlife Refuge, Va
No abstract available.
Authors
P. Sykes
The Literature of the Western Clapper Rails
No abstract available.
Authors
S.R. Wilbur, R. E. Tomlinson
Wildlife importation into the United States, 1900-1972
Data from Bureau of Biological Survey and U.S. Fish and Wildlife Service reports show an overall increase in the number of birds and mammals imported from 1900 to 1972. The trend was interrupted by World War I, the economic depression of the 1930's, and World War II. Data are lacking for the years after World War II until 1968. Until 1942, domesticated canaries and a few species of game birds m
Authors
R.C. Banks