Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 41763
Net hours: A common denominator for the study of bird populations by banders
No abstract available.
Authors
C.S. Robbins
An improved method for the separation and removal of organochlorine insecticides from thin-layer plates
No abstract available.
Authors
B. M. Mulhern
Mortality among bobwhites confined to a heptachlor contaminated environment
The lethal effects of heptachlor on bobwhites (Colinus virginianus) were studied at the Patuxent Wildlife Research Center during 1962 and 1963. A pair of adult birds was placed in each of 32 wire-covered field pens (20 x 50 x 61/2 ft) in May, 1962, and in 36 additional pens in May, 1963. Heptachlor (technical grade on clay granules) was spread in the pens at rates of1/8, 1/4, 1 1/4 and 2 lb/acre
Authors
J.F. Kreitzer, J. W. Spann
A survey of chlorinated pesticide residues in black duck eggs
No abstract available.
Authors
W. L. Reichel, C.E. Addy
Sixty-eighth Christmas bird count. 276. Back Bay National Wildlife Refuge, Va
No abstract available.
Authors
P.W. Sykes
Anemia and mechanism of erythrocyte destruction in ducks with acute Leucocytozoon infections
In the anemia which accompanies infection by Leucocytozoon simondi in Pekin ducks there was a far greater loss of erythrocytes than could be accounted for as a result of direct physical rupture by the parasite. Erythrocyte loss began at the same time the 1st parasites appeared in the blood and was severest just prior to maximum parasitemia. Blood replacement and parasite loss occurred simultaneous
Authors
R. M. Kocan
The canvasback duck (Aythya valisineria): A new host for Plasmodium
No abstract available.
Authors
R. M. Kocan
Observations on the development and significance of Leucocytozoon simondi megaloschizonts and a technique for their isolation
No abstract available.
Authors
R. M. Kocan, J.H. Barrow
Probable origin of ciliates found in oral swabbing of doves and pigeons
No abstract available.
Authors
R. M. Kocan