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
Overview of nongame bird survey techniques Overview of nongame bird survey techniques
No abstract available.
Authors
C.S. Robbins
Ferruginous hawk Ferruginous hawk
In the Southwest, the ferruginous hawk is a local and isolated breeder and an uncommon but consistent winter visitor. Apparently, the breeding range of this species in the Southwest was historically much greater than today. The ferruginous hawk is being considered for listing by the U.S. Fish and Wildlife Service but remains unclassified by the individual states comprising the Southwest...
Authors
R.S. Hall, R.L. Glinski, D. H. Ellis, J.M. Ramakka, D.L. Base
Potential effects of changing water conditions on mallards wintering in the Mississippi alluvial valley Potential effects of changing water conditions on mallards wintering in the Mississippi alluvial valley
No abstract available.
Authors
K. J. Reinecke, R.C. Barkley, C.K. Baxter
Organochlorine pollutants in plasma of spring migrant peregrine falcons from coastal Texas, 1984 Organochlorine pollutants in plasma of spring migrant peregrine falcons from coastal Texas, 1984
No abstract available.
Authors
Charles J. Henny, K.E. Riddle, C.S. Hulse
Karyotype of Marmosa canescens (Marsupialia: Didelphidae): a mouse opossum with 22 chromosomes Karyotype of Marmosa canescens (Marsupialia: Didelphidae): a mouse opossum with 22 chromosomes
No abstract available.
Authors
M.D. Engstrom, A. L. Gardner
Damage to the forest ecosystem on Blue Mountain from zinc smelting Damage to the forest ecosystem on Blue Mountain from zinc smelting
Emissions from two zinc smelters in Palmerton, Pennsylvania, have caused widespread destruction of the forest on Blue Mountain. There have been striking changes in the species composition and structure of the community of vascular plants, as well as population reductions of lichens, mosses, arthropods inhabiting the letter, and amphibians. Reductions in the populations of decomposers of...
Authors
W. N. Beyer
Brain cholinesterase activity of apparently normal wild birds Brain cholinesterase activity of apparently normal wild birds
Organophosphorus and carbamate pesticides are potent anticholinesterase substances that have killed large numbers of wild birds of various species. Cause of death is diagnosed by demonstration of depressed brain cholinesterase (ChE) activity in combination with chemical detection of anticholinesterase residue in the affected specimen. ChE depression is determined by comparison of the...
Authors
E. F. Hill
Wolf distribution and road density in Minnesota Wolf distribution and road density in Minnesota
No abstract available.
Authors
L.D. Mech, S. H. Fritts, G.L. Radde, W.J. Paul
Organochlorines and mercury in eggs of coastal terns and herons in California, USA Organochlorines and mercury in eggs of coastal terns and herons in California, USA
In San Franciso Bay, California, USA, concentrations of DDE and mercury in eggs differed among Caspian Tern, Forster's Tern, Black-crowned Night-Heron, and Snowy Egret in 1982. Geometric mean DDE concentrations were higher (P 0.05) in Caspian Tern eggs (6.93 ppm, wet weight) than in eggs of other species (1.92-2.84 ppm). Mean mercury concentrations were significantly greater in Caspian...
Authors
H. M. Ohlendorf, T. W. Custer, Roy W. Lowe, M. Rigney, E. Cromartie
How sensitive are bats to insecticides? How sensitive are bats to insecticides?
Concern about the loss of bat populations to insecticides, first stated by Mohr (1953) has stimulated toxicological research to quantify the sensitivity of bats to these chemicals. This report is a review of results of research to date and a discussion of implications for bats in the wild.
Authors
D. R. Clark