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
Nineteenth breeding-bird census. 9. Virgin bottomland white spruce forest
No abstract available.
Authors
R. E. Stewart
Winter losses of Canada geese at Pea Island, North Carolina
Report of research and findings to date. Topics discussed include: studies on life history and biology of gizzard worm; results of autopsies; experiments on survival and transmission of gizzard worm eggs and larvae in both field and laboratory; persistence of infections; and results of infections in geese of different ages. Cause of deaths has not been finally determined, but indications are tha
Authors
A.B. Cowan, C. M. Herman
DDT vs. wildlife: Relationships between quantities ingested, toxic effects and tissue storage
Symptoms appeared when quail and pheasants were fed diets containing 0.025-0.050% DDT. Symptoms appeared sooner as percentages increased. Young birds seemed more resistant than adults. Median lethal quantity for adult quail was about 1,200 mg./Kg. Young quail showed no ill-effects after ingesting 3,000 mg./Kg. during 10-week period. Adult pheasants died after ingesting 200-300 mg./Kg. Approximatel
Authors
J.B. DeWitt, J.V. Derby, G.F. Mangan
Neck-banding and other color-marking of waterfowl; its merits and shortcomings
No abstract available.
Authors
J.W. Aldrich, J.H. Steenis
Studies of mosquito breeding in natural and impounded salt-marsh areas in New Jersey and Delaware in 1954
No abstract available.
Authors
H.C. Chapman, P. F. Springer, Fred Ferrigno, R.F. Darsie
Effects of chlorinated hydrocarbon insecticides upon quail and pheasants
Previous studies had shown that heavy or repeated applications of DDT resulted in decreases.in bird populations, but long-range effects of this and other chlorinated hydrocarbon insecticides had not been fully evaluated. Experiments were conducted to determine toxiCitY to quail and pheasants of aldrin, dieldrin, endrin, and strobane, and to determine effects of these compounds upon survival, grow
Authors
J.B. DeWitt
The role of calcium in reproduction of the ring-necked pheasant
The pheasant, in its North American range, seems to have had its greatest success in glaciated or in other areas associated with calcareous soils. Success has been slight in areas deficient in calcium.....In Lancaster County, Pennsylvania, no environmental difference other than presence or absence of limestone was discovered that might explain the high population in the limestone valley and the sc
Authors
F.H. Dale
Changes in nutritive value of browse plants following forest fires
Studies were conducted to determine chemical composition and nutritive value of four species of plants commonly used as browse by deer and to determine effects of low- and high-intensity fires upon chemical composition. Total solids, ash, ether extract, crude fiber and nitrogen-free extract contents of red maple, flowering dogwood, white oak and roundleaf greenbrier were not affected by either typ
Authors
J.B. DeWitt, J.V. Derby
Causes of winter losses among Canada geese
No abstract available.
Authors
C. M. Herman, J.H. Steenis, E.E. Wehr
Ability of the bobwhite to grow and reproduce without a dietary source of Vitamin B12
No abstract available.
Authors
F.H. Dale