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
Feeding flights of nesting wading birds at a Virginia colony Feeding flights of nesting wading birds at a Virginia colony
Feeding flights of Snowy Egrets (Egretta thula), Tricolored Herons (E. tricolor), Little Blue Herons (E. caerulea), and Cattle Egrets (Bubulcus ibis) were monitored at a small nesting colony near Chincoteague, Virginia during late May and June 1979. All four species varied their flight directions over a series of days. Cattle Egrets oriented in a different direction (toward uplands) from...
Authors
R.M. Erwin
Value of frozen tissue collections for gene pool preservation Value of frozen tissue collections for gene pool preservation
No abstract available.
Authors
G.F. Gee
An introduction to statistical and ecological software An introduction to statistical and ecological software
No abstract available.
Authors
Gary L. Hensler
Occurrence and timing of second clutches in common terns Occurrence and timing of second clutches in common terns
Eighteen pairs of Common Terns (Sterna hirundo) at three different colonies laid second clutches while still feeding young from their first broods. Seven clutches were laid before the chicks from the first brood fledged, and 11 were laid after the chicks from the first brood fledged. In each case, parents alternately fed chicks from the first brood and incubated the second clutch...
Authors
D.A. Wiggins, R.D. Morris, I.C.T. Nisbet, T. W. Custer
Residues of organochlorine insecticides, polychlorinated biphenyls, and heavy metals in biota from Apalachicola River, Florida, 1978 Residues of organochlorine insecticides, polychlorinated biphenyls, and heavy metals in biota from Apalachicola River, Florida, 1978
Seventy-seven composite samples composed of largemouth bass (Micropterus salmoides), channel catfish (Ictaluras punctatus), threadfin shad (Dorosoma petenense), Asiatic clam (Corbicula fluminea), burrowing mayfly (Hexagenia sp.), water snake (Natrix spp.), and little green heron (Butorides virescens) were collected from upper and lower reaches of the Apalachicola River, Florida, in 1978...
Authors
P. V. Winger, C. Sieckman, T.W. May, W.W. Johnson
Comparative toxicity of acephate in laboratory mice, white-footed mice, and meadow voles Comparative toxicity of acephate in laboratory mice, white-footed mice, and meadow voles
The LD50 (95% confidence limits) of the organophosphorus insecticide acephate was estimated to be 351, 380, and 321 mg/kg (295–416, 280–516, and 266–388 mg/kg) for CD-1 laboratory mice (Mus musculus), white-footed mice (Peromyscus leucopus noveboracensis), and meadow voles (Microtus pennsylvanicus), respectively. In a second study, these species were provided mash containing 0, 25, 100...
Authors
Barnett A. Rattner, David J. Hoffman
Trimorphodon biscutatus Trimorphodon biscutatus
No abstract available.
Authors
N.J. Scott, R.W. McDiarmid
Radio-triggered anesthetic-dart collar for recapturing large mammals Radio-triggered anesthetic-dart collar for recapturing large mammals
A re-usable, radio-triggered, anesthetic-dart collar costing about $1,200 has been developed for recapturing large, free-ranging mammals. The collar was tested successfully on captive gray wolves, white-tailed deer, a mountain lion, a black bear, and a tiger, and on wild wolves, a bear, and deer after periods of up to 32 days. The main advantage of the capture collar is that it allows...
Authors
L.D. Mech, Richard C. Chapman, W.W. Cochran, L. Simmons, U.S. Seal
Recuperation of a severely debilitated wolf Recuperation of a severely debilitated wolf
Opportunities are rare for determining the degree to which an animal can starve and still survive. Therefore we describe here an incident in which a wild wolf (Canis lupus) starved almost to death and was then restored to her former free-ranging state. The incident took place in northern Lake County, Minnesota
Authors
L.D. Mech, U.S. Seal, S.M. Arthur
Twin embryos in a peregrine falcon egg Twin embryos in a peregrine falcon egg
No abstract available.
Authors
O. H. Pattee, W.G. Mattox, W.S. Seegar
Age-specific productivity and nest site characteristics of Cooper's hawks (Accipiter cooperii) Age-specific productivity and nest site characteristics of Cooper's hawks (Accipiter cooperii)
Nesting Cooper's Hawks (Accipiter cooperii) were studied in northeastern Oregon. Second-year (SY) males did not breed, but 22 percent of the breeding females were SY's. Mean clutch size (P = 0.012) and mean number of young fledged per pair that laid eggs (P 0.10) were lower for SY females than for adult (after second year [ASY}) females; however, an equal percentage of the eggs...
Authors
K.R. Moore, Charles J. Henny