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
Behavior of mallard ducklings from parents fed 3 ppm DDE Behavior of mallard ducklings from parents fed 3 ppm DDE
Mallard ducks fed a diet containing 3 ppm DDE (equal to about 0.6 ppm in a natural succulent diet) laid eggs that contained an average of 5.8 ppm DDE; ducklings that hatched from these eggs differed from controls in behavioral tests designed to measure responses to a maternal call and to a frightening stimulus. In response to the maternal call, ducklings from parents fed DDE were hyper...
Authors
G. H. Heinz
Methylmercury: Second generation reproductive and behavioral effects of mallard ducks Methylmercury: Second generation reproductive and behavioral effects of mallard ducks
Mallard ducks (Anas platyrhynchos) whose parents were fed a diet containing 0.5 ppm mercury (equal to about 0.1 ppm mercury in a natural diet) also were fed a diet containing 0.5 ppm mercury beginning at 9 days of age and continuing through their reproductive season. Mercury in the eggs of treated hens averaged 0.86 ppm. Hens fed 0.5 ppm mercury made less efficient use of feed and laid a...
Authors
G. H. Heinz
Reflective plate glass--a hazard to migrating birds Reflective plate glass--a hazard to migrating birds
No abstract available.
Authors
R.C. Banks
How National Capital parks contract Dutch Elm Disease How National Capital parks contract Dutch Elm Disease
No abstract available.
Authors
J.L. Sherald, R.S. Hammerschlag
Bird collections in the United States and Canada: Addenda and corrigenda Bird collections in the United States and Canada: Addenda and corrigenda
Since publication of our report on the avian collections in the United States and Canada (Banks, Clench, and Barlow 1973, Auk 90: 136- 170) several changes and additions have come to our attention. In some cases, recent curatorial work has resulted in more accurate counts to replace previous estimates. Other collections have grown markedly in the last few years. Some important private or
Authors
M.H. Clench, R.C. Banks, J.C. Barlow
Acute oral toxicity and tissue residues of thallium sulfate in golden eagles, Aquila chrysaetos Acute oral toxicity and tissue residues of thallium sulfate in golden eagles, Aquila chrysaetos
No abstract available.
Authors
J. R. Bean, R. H. Hudson
Mathematical models for non-parametric inferences from line transect data 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...
Authors
K.P. Burnham, David R. Anderson
Karyotypic variation in oryzomyine rodents (Cricetinae) with comments on chromosomal evolution in the neotropical cricetine complex Karyotypic variation in oryzomyine rodents (Cricetinae) with comments on chromosomal evolution in the neotropical cricetine complex
No abstract available.
Authors
A. L. Gardner, J.L. Patton
Trumpeter swan, Cygnus buccinator Richardson Trumpeter swan, Cygnus buccinator Richardson
No abstract available.
Authors
W.E. Banko, A.W. Schorger
Nighttime tests of remote sensors for census of sandhill cranes Nighttime tests of remote sensors for census of sandhill cranes
No abstract available.
Authors
R. E. Munro, J. C. Lewis
Optimal exploitation strategies for an animal population in a Markovian environment: A theory and an example Optimal exploitation strategies for an animal population in a Markovian environment: A theory and an example
Optimal exploitation strategies were studied for an animal population in a Markovian (stochastic, serially correlated) environment. This is a general case and encompasses a number of important special cases as simplifications. Extensive empirical data on the Mallard (Anas platyrhynchos) were used as an example of general theory. The number of small ponds on the central breeding grounds...
Authors
David R. Anderson