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
Avoidance behavior of young black ducks treated with chromium Avoidance behavior of young black ducks treated with chromium
Pairs of adult black ducks (Anas rubripes) were fed a diet containing 0, 20, or 200 ppm chromium in the form of chromium potassium sulfate. Ducklings from these pairs were fed the same diets as adults and were tested for their avoidance responses to a fright stimulus. Neither level of chromium had a significant effect on avoidance behavior.
Authors
G. H. Heinz, S. D. Haseltine
Low DDT residues in plasma of bald eagles (Haliaeetus leucocephalus) wintering in Colorado and Missouri Low DDT residues in plasma of bald eagles (Haliaeetus leucocephalus) wintering in Colorado and Missouri
No abstract available.
Authors
Charles J. Henny, C.R. Griffin, D.W. Stahlecker, A.R. Harmata, E. Cromartie
A technique for vasectomizing birds A technique for vasectomizing birds
No abstract available.
Authors
D. H. Ellis, J. W. Carpenter
Effects of petroleum on the development and survival of marine turtle embryos Effects of petroleum on the development and survival of marine turtle embryos
No abstract available.
Authors
T. H. Fritts, M.A. McGehee
Deer social organization and wolf predation in northeastern Minnesota Deer social organization and wolf predation in northeastern Minnesota
No abstract available.
Authors
Michael E. Nelson, L. David Mech
Organochlorine concentrations in bald eagles: Brain/body lipid relations and hazard evaluation Organochlorine concentrations in bald eagles: Brain/body lipid relations and hazard evaluation
Residue levels of 12 organochlorine compounds found In the brains of bald eagles can be predicted from the corresponding concentrations in the carcass when expressed on a hexane‐extractable lipid basis. The compounds varied by a factor of about 3 in the degree to which they accumulated In the brain. An understanding of these relations enhances our ability to assess the toxic hazards of
Authors
K.R. Barbehenn, W. L. Reichel
Eustrongylides and pesticide levels in a great blue heron shot in Wisconsin Eustrongylides and pesticide levels in a great blue heron shot in Wisconsin
The parasitic roundworm, Eustrongylides ignotus Jagersk, has been known to cause mortality and morbidity in members of the heron family in the eastern states of North America. To date no previous records exist for this nematode in Wisconsin. Even though eustrongylidiosis was first detected in the District of Columbia in 1926 by Chapin (1926), it was not until 1976 that this parasite was...
Authors
R. M. Windingstad, D. M. Swineford
The role of captive propagation in preserving endangered species The role of captive propagation in preserving endangered species
No abstract available.
Authors
J. W. Carpenter, S.R. Derrickson
Effects of forest fragmentation on avifauna of the eastern deciduous forest Effects of forest fragmentation on avifauna of the eastern deciduous forest
No abstract available.
Authors
R.F. Whitcomb, C.S. Robbins, J.F. Lynch, B.L. Whitcomb, M. K. Klimkiewicz, D. Bystrak
Estimates of avian population trends from the North American Breeding Bird Survey Estimates of avian population trends from the North American Breeding Bird Survey
One of the major purposes of bird population studies is to document changes in population size over a period of years. The traditional method used in Europe and North America to detect population change is to calculate annual ratios. However, this method can produce spurious results when ratios are accumulated over many years. Consequently, new methods of computing trends are needed...
Authors
P.H. Geissler, B.R. Noon
Problems in separating species with similar habits and vocalizations Problems in separating species with similar habits and vocalizations
The possibilities for species misidentification based on vocalization or habitat association are high. However, the magnitude of the errors actually perpetrated is generally within an acceptable range in most types of bird survey work. Examples of problems discussed are: congeners that are similar in appearance or in song (such as Chimney and Vaux's Swifts, Chaetura pelagica, C. vauxi...
Authors
C.S. Robbins, R.W. Stallcup