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
Small coastal structures - A review Small coastal structures - A review
No abstract available.
Authors
Larry R. Shanks
Short-tailed shrews: Toxicity and residue relationships of DDT, dieldrin, and endrin Short-tailed shrews: Toxicity and residue relationships of DDT, dieldrin, and endrin
Experiments involving dietary toxicity and residue relationships of DDT, dieldrin, and endrin were conducted with short-tailed shrews. Dietary concentrations of DDT dissolved in vegetable oils were usually more toxic than diets containing comparable amounts of powdered DDT. Younger shrews, particularly females, were more tolerant of powdered DDT than older animals; yet, there were no...
Authors
Lawrence J. Blus
Additional distributional records of Preble's shrew (Sorex preblei) Additional distributional records of Preble's shrew (Sorex preblei)
No abstract available.
Authors
R.S. Hoffman, R.D. Fisher
An unusually long pursuit of a deer by a wolf An unusually long pursuit of a deer by a wolf
No abstract available.
Authors
L.D. Mech, M. Korb
Reappraising factors affecting mourning dove perch coos Reappraising factors affecting mourning dove perch coos
Results confirmed pairing as the primary factor influencing perch-cooing rates of wild mourning doves (Zenaida macroura). Marked unmated males cooed at substantially higher rates (6.2x) than mated males, had greater probability of cooing (2.3x) during 3-minute periods, and continued cooing longer each morning than mated males. Population density was not a major factor affecting cooing...
Authors
M. W. Sayre, R.D. Atkinson, T.S. Baskett, G.H. Haas
Metabolic indicators of habitat differences in four Minnesota deer populations Metabolic indicators of habitat differences in four Minnesota deer populations
Blood samples were collected from 40 white-tailed deer (Odocoileus virginianus) from 4 winter yards in northeastern Minnesota from 17 March 1974 through 23 April 1975. The results of 26 blood assays were examined for the effects of age, sex, capture date, capture method, disease and location. Age-related effects were found for serum chloride, calcium, gamma globulin, creatine...
Authors
U.S. Seal, M.E. Nelson, L.D. Mech, R.L. Hoskinson
Sleeping distance in wolf pairs in relation to the breeding season Sleeping distance in wolf pairs in relation to the breeding season
Changes in sleeping distances in 11 pairs of wild wolves (Canis lupus) were studied to determine if they correlated with stages of the breeding cycle. Aerial radio-tracking and observation were the techniques used. Members of most pairs slept less than 1 m apart at least sometime during proestrus and the first half of the breeding season, but slept farther apart during the second half...
Authors
L. David Mech, Steven T. Knick
Relating wolf scat content to prey consumed Relating wolf scat content to prey consumed
In 9 trials, captive wolves (Canis lupus) were fed prey varying in size from snowshoe hares (Lepus americanus) to adult deer (Odocoileus virginianus), and the resulting scats were counted. Field-collectible scats were distinguished from liquid, non-collectible stools. I n collectible scats, the remains of small prey occurred in greater proportion relative to the prey's weight, and in...
Authors
T.J. Floyd, L.D. Mech, P.A. Jordan
Erythrocyte δ-Aminolevulinic Acid Dehydratase Activity in Mallard Ducks: Duration of Inhibition after Lead Shot Dosage Erythrocyte δ-Aminolevulinic Acid Dehydratase Activity in Mallard Ducks: Duration of Inhibition after Lead Shot Dosage
Inhibition of a lead-specific blood enzyme, 8-aminolevulinic acid dehydratase (ALAD), has been utilized to indicate the incidence and degree of lead contamination in canvasback ducks (Aythya valisineria) (Dieter et al. 1976). This variable was found to be more sensitive to lead than previous tests that have been employed with waterfowl (Locke et al. 1966, 1967), and has proved to be...
Authors
M. P. Dieter, M. T. Finley
Age and sex determination of juvenile band-tailed pigeons Age and sex determination of juvenile band-tailed pigeons
Captive band-tailed pigeons (Columba fasciata) were studied to document progression of molts and plumages from juvenal to adult age. Immature pigeons began the post-juvenal molt at 35 days which continued up to 340 days. The only 3 plumage characters useful for identification and estimation of age were presence of juvenal lesser, middle, and greater secondary coverts, juvenal secondaries...
Authors
J.A. White, C.E. Braun
Environmental pollutants and eggshell thinning in the black-crowned night heron Environmental pollutants and eggshell thinning in the black-crowned night heron
No abstract available.
Authors
H. M. Ohlendorf, Erwin E. Klaas, T. E. Kaiser
Toxaphene does not affect avoidance behavior of young black ducks Toxaphene does not affect avoidance behavior of young black ducks
No abstract available.
Authors
G. H. Heinz, M. T. Finley