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
Wolf howling and its role in territory maintenance Wolf howling and its role in territory maintenance
An experimental study of the role of howling in wolf territory maintenance was conducted in the Superior National Forest, Minnesota. Vocal replies and behaviour of radio-collared wolves in response to human howls were analyzed for eight packs and 10 lone wolves during a 2-year period. Reply rate varied significantly throughout the year. A mid-winter increase was correlated with the...
Authors
F.H. Harrington, L.D. Mech
Radio-equipped woodcock traced on fall migration Radio-equipped woodcock traced on fall migration
No abstract available.
Authors
R.A. Coon, J.S. Lindzey
Endocrine correlates of reproduction in the wolf. I. Serum progesterone, estradiol and LH during the estrous cycle Endocrine correlates of reproduction in the wolf. I. Serum progesterone, estradiol and LH during the estrous cycle
The estrous cycle of 10 intact female wolves, aged 8 months-8 years at the initiation of the study, was characterized in terms of vaginal smears, behavioral observations and serum concentrations of estradiol-17β, progesterone and luteinizing hormone (LH) from January through June. No estrous cycles occurred in these animals between June and December. All were housed with male wolves. Two...
Authors
U.S. Seal, E.D. Plotka, J.M. Packard, L.D. Mech
Bone development in black ducks as affected by dietary toxaphene Bone development in black ducks as affected by dietary toxaphene
Black ducks, Anas rubripes, were exposed to dietary toxaphene concentrations of 0, 10, or 50 μg/g of food for 90 days prior to laying and through the reproductive season. Toxaphene did not affect reproduction or survival, but reduced growth and impaired backbone development in ducklings. Collagen, the organic matrix of bone, was decreased significantly in cervical vertebrae of ducklings...
Authors
P. M. Mehrle, M. T. Finley, J. Larry Ludke, F.L. Mayer, T. E. Kaiser
Guidelines for manuscripts for the Journal of Mammalogy Guidelines for manuscripts for the Journal of Mammalogy
No abstract available.
Authors
D.E. Wilson, B.A. Bacon, A. L. Gardner
Effects of No. 2 fuel oil on hatchability of marine and estuarine bird eggs Effects of No. 2 fuel oil on hatchability of marine and estuarine bird eggs
Eggs of Louisiana herons, sandwich terns, and laughing gulls were oiled with either 0, 5, or 20 μl of No. 2 fuel oil in the field and in the laboratory. After 5 days of natural incubation, field-oiled and control eggs were opened and embryonic mortality was determined. No. 2 fuel oil produce'd 61% mortality in Louisiana heron eggs, 56% in sandwich tern eggs, and 83% in laughing gull eggs...
Authors
Donald H. White, Kirke A. King, Nancy C. Coon
The seventy-ninth Audubon Christmas bird count. 376. Ocean City, Md The seventy-ninth Audubon Christmas bird count. 376. Ocean City, Md
No abstract available.
Authors
C.S. Robbins
Population ecology of house mice in unstable habitats Population ecology of house mice in unstable habitats
(1) The relationships between habitat change and house mouse populations were studied by monthly live trapping in a corn-wheat-hay rotation on a small Maryland farm. (2) Population density reached 53.0/ha in a wheat/hay field in October and 25.4/ha in corn in September. Populations increased by immigration as wheat or corn grew and ripened and decreased by emigration as hay became tall...
Authors
L.F. Stickel
Nationwide residues of organochlorine compounds in starlings (Sturnus vulgaris), 1976 Nationwide residues of organochlorine compounds in starlings (Sturnus vulgaris), 1976
Organochlorine pesticide and PCB residues in starlings from 126 sites within the contiguous 48 states were monitored during fall 1976. The average nationwide level of DDE and PCBs has increased significantly since 1974, but the number of sites reporting PCB residues has decreased fivefold. Dieldrin residues have remained unchanged since 1974. Highest DDE levels occurred in samples from...
Authors
Donald H. White
The Bell's vireo in California: A preliminary report The Bell's vireo in California: A preliminary report
No abstract available.
Authors
S.R. Wilbur
Effect of forest fragmentation on bird populations Effect of forest fragmentation on bird populations
No abstract available.
Authors
C.S. Robbins