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
Waterfowl production estimates on forested wetlands from pair and brood counts Waterfowl production estimates on forested wetlands from pair and brood counts
Waterfowl pair and brood counts and estimates of total brood utilization were obtained from 10 beaver (Castor canadensis) flowages in north-central Minnesota and compared with rank correlation techniques. Summing the data for each species, correlation between pair and brood censuses was significant ( p = 0.8304, P 0.025). Similarly, using the flowages as replicate samples of a habitat...
Authors
R.E. Kirby
Censusing colonial waterbirds: Problems and progress Censusing colonial waterbirds: Problems and progress
No abstract available.
Authors
R.M. Erwin
Inhibition of brain cholinesterase activity in forest birds and squirrels exposed to aerially applied acephate Inhibition of brain cholinesterase activity in forest birds and squirrels exposed to aerially applied acephate
No abstract available.
Authors
J.G. Zinkl, R.B. Roberts, Charles J. Henny, D.J. Lenhart
Ethology and management of captive sandhill cranes Ethology and management of captive sandhill cranes
No abstract available.
Authors
S.R. Derrickson, J. W. Carpenter
Lead residues in sora rails from Maryland Lead residues in sora rails from Maryland
During September and October, mi- grating sora rails (Porzana carolina) use tidal marshes of the Patuxent River in Maryland, where they have been hunted for many years. Spent shot accumulates in the marsh during the rail hunting sea- son, and some shot is ingested by the birds. Twelve percent of gizzards from rails collected at the marsh during 1965- 73 contained lead shot (Artmann and...
Authors
Rey C. Stendell, Joseph W. Artmann, Elwood Martin
Brief observations on the breeding biology of the flammulated owl in Colorado Brief observations on the breeding biology of the flammulated owl in Colorado
No abstract available.
Authors
M.L. Richmond, L.R. DeWeese, R.E. Pillmore
Secondary poisoning of owls by anticoagulant rodenticides Secondary poisoning of owls by anticoagulant rodenticides
Anticoagulants-compounds that prevent clotting of the blood-are extensively used for control of small mammal pests. The potential secondary hazards of 6 anticoagulant rodenticides to birds of prey were examined in this study. Whole rats or mice were killed with each anticoagulant and were fed to 1-3 species of owls. Owls died of hemorrhaging after feeding on rats killed with bromadiolone
Authors
Vivian M. Mendenhall, L.F. Pank
Atlantic brant--human commensalism on eelgrass beds in New Jersey Atlantic brant--human commensalism on eelgrass beds in New Jersey
Atlantic Brant Branta bernicla hrota in Barnegat Bay, New Jersey, have established a commensal feeding relationship with man. Small flocks feed 3-5 m from clam fishermen on Zostera torn from the sea bottom by the fishing activities. Background material on the availability and digestibility of different brant foods is presented. This commensalism gives the Brant an efficient food...
Authors
R.E. Kirby, H.H. Obrecht