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
Atlantic Flyway review: Region V Atlantic Flyway review: Region V
Because of the change in regional boundaries, Region V now includes Piedmont and Coastal Plains areas of the southeastern states from Maryland to the Gulf of Mexico, bordered on the west by Interstate Rt. 81 and US Rt. 220. Maryland's mountain stations are now reporting through Region IV (NASS 2:184-187). Region V welcomes three new stations this year: Colesville and Sandy Spring in the...
Authors
Chandler S. Robbins
Puerto Rican parrots and nest-site scarcity Puerto Rican parrots and nest-site scarcity
No abstract available.
Authors
N.F.R. Snyder
Organochlorine residues, eggshell thickness, and nest success in barn owls from the Chesapeake Bay Organochlorine residues, eggshell thickness, and nest success in barn owls from the Chesapeake Bay
Eggs of barn owls (Tyto alba) were collected from 18 nests in offshore duck blinds on the Maryland side of the lower Potomac River estuary in 1972 and 1973 and analyzed for organochlorine residues. DDE was found in 100% of the clutches, PCBs in 89%, and dieldrin in 78%. Eggshell thickness was inversely correlated with concentrations of DDE, DDD, and dieldrin residues. Six of the 18...
Authors
Erwin E. Klaas, Stanley N. Wiemeyer, H. M. Ohlendorf, D. M. Swineford
Bald eagles nesting in Baja California Bald eagles nesting in Baja California
Published records of Bald Eagles (Haliaeetus leucocephalus) nesting in Baja California during the last 50 years are nonexistent to our knowledge, and few records exist prior to that time. Friedmann et al. (1950:61, Pac. Coast Avifauna 29) describe the distribution of Bald Eagles in Baja California as "a scattering of pairs on both the Pacific and Gulf Sides." Nesting Bald Eagles were...
Authors
Charles J. Henny, Daniel W. Anderson, C.E. Knoder
Toxicity of experimental lead-iron shot versus commercial lead shot in mallards Toxicity of experimental lead-iron shot versus commercial lead shot in mallards
The toxicity of an experimental lead-iron shot containing 38.1 percent lead was compared with commercial lead shot in mallard ducks (Anas platyrhynchos) fed corn for 14 weeks. Significantly higher mortality occurred in ducks dosed with commercial lead shot compared to ducks given lead-iron shot containing comparable amounts of lead. Loss of body weight was indicative of the difference in...
Authors
Mack T. Finley, Michael P. Dieter
Survival and reproductive success of black ducks fed methyl mercury Survival and reproductive success of black ducks fed methyl mercury
A diet containing 3 ppm mercury was fed to black ducks (Anas rubripes) for periods of 28 weeks during two consecutive breeding seasons. Clutch size, egg production, number of eggs incubated, hatchability and survival of ducklings were lower during both years in hens fed mercury. Reduced hatchability and poor duckling survival were the most harmful effects. During 2 years, 13 pairs of...
Authors
M. T. Finley, Rey C. Stendell
A white-tailed kite breeding record for Oregon A white-tailed kite breeding record for Oregon
No abstract available.
Authors
Charles J. Henny, John T. Annear
Studies on combined effects of organophosphates or carbamates and morsodren in birds. II. Plasma and cholinesterase in quail fed morsodren and orally dosed with parathion or carbofuran Studies on combined effects of organophosphates or carbamates and morsodren in birds. II. Plasma and cholinesterase in quail fed morsodren and orally dosed with parathion or carbofuran
The degree of interaction between mercury and cholinesterase inhibiting pesticides was determined by comparing enzyme responses to sublethal dosages of parathion or carbofuran in quail fed 0.05, 0.5, or 5.0 ppm morsodren for 18 weeks. A statistically significant interaction was defined as greater brain cholinesterase inhibition in morsodren-fed than in clean-fed birds following pesticide...
Authors
M. P. Dieter, J. Larry Ludke
Six different plasma enzymes in bald eagles (Haliaeetus leucocephalus) and their usefulness in pathological diagnosis Six different plasma enzymes in bald eagles (Haliaeetus leucocephalus) and their usefulness in pathological diagnosis
1. Activities of creatine phosphokinase, glutamic oxalacetic transaminase, glutamic pyruvic transaminase, lactate dehydrogenase, fructose diphosphate aldolase and cholinesterase were measured in plasma of bald eagles. 2. There were no sex differences in the plasma enzyme activities. 3. An acute dieldrin dosage (10 mg/kg) of a female bald eagle resulted in 400% increases in activities of...
Authors
M. P. Dieter, Stanley N. Wiemeyer
A new hybrid warbler combination A new hybrid warbler combination
No abstract available.
Authors
R.C. Banks, J. Baird
Husbandry, reproduction, and veterinary care of captive ferrets Husbandry, reproduction, and veterinary care of captive ferrets
No abstract available.
Authors
J. W. Carpenter, C. N. Hillman
Steel shot/lead shot Steel shot/lead shot
No abstract available.
Authors
J. R. Longcore, H.E. Spencer, P. Corr