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: 41758
Effects on wildlife of DDT used for control of Dutch elm disease
During the summer of 1949 studies were conducted at Princeton, New Jersey, to determine the effects on wildlife of DDT used in the control of Dutch elm disease. Direct mortality was determined by intensive search for dead birds after spraying. Twenty-six songbirds, one bat, and one gray squirrel were found. Of 11 dead birds from a study area of approximately 20 acres only one was an adult. S
Authors
A.H. Benton
Occurrence and identification of the prairie deer-mouse in central Maryland
No abstract available.
Authors
W. H. Stickel
A new swamp sparrow from the Maryland coastal plain
No abstract available.
Authors
G.M. Bond, R. E. Stewart
A study of absorption and retention of lead in wild waterfowl in relation to clinical evidence of lead poisoning
No abstract available.
Authors
D.R. Coburn, D.W. Metzler, R. Treichler
Effects of five-year DDT application on breeding bird population
Aerial applications of DDT in oil at the rate of 2 pounds per acre applied over a four-year interval on bottomland forest resulted in a 26 percent decrease in the breeding bird population by the fifth spring. The American redstart, parula warbler, and red-eyed vireo suffered decreases of 44 percent, 40. percent, and 28 percent, respectively, over the four-year period. Only the redstart decreased s
Authors
C.S. Robbins, P. F. Springer, C.G. Webster
Fifteenth breeding bird census: Mixed northern hardwood, spruce-fir forest
No abstract available.
Authors
J.B. Cope, M.M. Hensley
The refuge in pheasant management
1. Cock pheasants in favorable habitats have demonstrated ability to withstand hunting pressures up to 300 gunhours per hundred acres and maintain a satisfactory remnant for breeding purposes. 2. Sex ratios of 10 or more hens per cock are adequate for the production of fertile eggs, and there is evidence that much wider ratios could be tolerated without loss of fertility. 3. Sex ratios dive
Authors
F.H. Dale