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: 41918
Effects on wildlife of newer pesticides and other pollutants
No abstract available.
Authors
W. H. Stickel
Pesticide residues in eggs of wild birds: Adjustment for loss of moisture and lipid
Eggs of wild birds collected for the purpose of measuring concentrations of pesticides or other pollutants vary from nearly fresh to nearly dry so that objective comparisons cannot be made on the basis of weight of the contents at the time of collection. Residue concentrations in the nearly dry eggs can be greatly exaggerated by this artifact. Valid interpretation of residue data depends upon co
Authors
L. F. Stickel, Stanley N. Wiemeyer, L. J. Blus
California condor survey, 1972
No abstract available.
Authors
R.D. Mallette, S.R. Wilbur, W.D. Carrier, J.C. Borneman
The importance of immobilizing wings following tenectomy and temotomy
No abstract available.
Authors
J.C. Miller
Experimental study of feeding rates of nesting Cooper's hawks
No abstract available.
Authors
N.F.R. Snyder, Hollice A. Snyder
New distributional records of breeding Mexican ducks
No abstract available.
Authors
R. E. Tomlinson, S.H. Levy, J.J. Levy
Distribution of two western clapper rail races as determined by responses to taped calls
During 1969 and 1970, surveys of the endangered Yuma Clapper Rail were conducted using taped calls to elicit responses from the birds. During the two summers, more than 158 Yuma clappers were located in cattailtule marshes along the Colorado River south of Needles, California, to the International Boundary, a distance of about 240 miles. Clappers (probably of the same race) were also found in estu
Authors
R. E. Tomlinson, R.L. Todd
The California condor in the Pacific Northwest
The California Condor (Gymnogyps californianus), once found along the Pacific Coast from Baja California to British Columbia, had become very rare north of California by 1850. Koford (1953), summarizing information available on the species in the Pacific Northwest, tentatively concluded that birds seen in that area were wanderers from California, perhaps forced north in some years by food shortage
Authors
S.R. Wilbur