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: 41772
Observations of birds in the Molokai Forest Reserve, July 1975
No abstract available.
Authors
J. M. Scott, D.H. Woodside, T.L. Casey
Studies on the protein and sulfur amino acid requirements of young bobwhite quail
Four experiments were conducted with purified diets to examine the influence of protein level and to estimate the sulfur amino acid (S.A.A.) requirement of young Bobwhite quail (Colinus virginianus). These studies demonstrated (I) that 26% protein was sufficient for rapid growth when the diet was supplemented with methionine; (2) that diets containing higher levels of protein (29.3% and 31.3%) fa
Authors
J.A. Serafin
Book review: The choice of prey and modes of hunting of predatory birds with special reference to their selective effect, by G. Rudebeck
No abstract available.
Authors
N.F.R. Snyder
Light-footed clapper rail: The unknown endangered species
No abstract available.
Authors
S.R. Wilbur
California condor survey, 1975
No abstract available.
Authors
S.R. Wilbur, R.D. Mallette, J.C. Borneman
[Book review] Ducks, Geese, and Swans of North America, by F. C. Bellrose
No abstract available.
Authors
M. C. Perry
Residues of organochlorine pesticides and polychlorinated biphenyls and autopsy data for bald eagles, 1973-74
Thirty-nine bald eagles found sick or dead in 13 States during 1969 and 1970 were analyzed for pesticide residues. Residues of DDE, dieldrin, polychlorinated biphenyls (PCB's), and mercury were detected in all bald eagle carcasses; DDD residues were detected in 38; DDT, heptachlor epoxide, and dichlorobenzophenone (DCBP) were detected less frequently. Six eagles contained possible lethal levels of
Authors
R. M. Prouty, W. L. Reichel, L. N. Locke, A. A. Belisle, E. Cromartie, T. E. Kaiser, T. G. Lamont, B. M. Mulhern, D. M. Swineford
Serum proteins of Canada goose (Branta canadensis) subspecies
Serum proteins from nine subspecies of Canada Geese (Brunta canadensis) were analyzed through the use of column and slab acrylamide electrophoresis. Variation was minimal within a subspecies, although all the subspecies were closely related. B. c. leucopareia appeared to be the most distinct subspecies, while maxima and moffitti were the most similar. Our preliminary findings suggest that the el
Authors
R.P. Morgan, S. T. Sulkin, C. J. Henny