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: 41778
Changing abundance of migratory birds in North America
No abstract available.
Authors
J.W. Aldrich, C.S. Robbins
Preliminary comparison of bird species diversity and density in Luquillo and Guanica Forests
No abstract available.
Authors
C.B. Kepler, A.K. Kepler
Progress report on the North American Breeding Bird Survey
No abstract available.
Authors
C.S. Robbins, W.T. Van Velzen
Comparison of two methods for monitoring changes in winter populations of songbirds
No abstract available.
Authors
C.S. Robbins
The effect of anesthetization and urinary bladder catheterization on renal function of rainbow trout
1. Rainbow trout were anesthetized with MS-222 (Sandoz) or methylpentynol and catheterized. Urine was collected at selected intervals up to 48 hr. 2. Effects of MS-222 anesthesia on urine flow and composition were isolated from the stress of catheterization by re-anesthetizing the fish 18 to 20 hr post catheterization. 3. Urine output patterns were similar following MS-222 or methylpentynol anest
Authors
J. B. Hunn, W. A. Willford
Reproduction, growth, and tissue residues of deer fed dieldrin
Feeding tests were conducted from January, 1966, to January, 1969, to ascertain the effects of daily ingestions of sublethal amounts of dieldrin on white-tailed deer (Odocoileus virginianus). Groups of deer on 0 ppm dieldrin (controls), 5 ppm, and 25 ppm dieldrin were maintained at these respective levels, as were their progeny. Treated food was readily accepted. Dieldrin intoxication was not o
Authors
D.A. Murphy, L.J. Korschgen
An international standard for a mapping method in bird census work recommended by the International Bird Census committee
No abstract available.
Authors
S. Svensson, K. Williamson, C. Ferry, A.H. Joensen, D. Lea, H. Oelke, C.S. Robbins
Serum protein changes in immune and nonimmune pigeons infected with various strains of Trichomonas gallinae
Serum protein changes were studied in immune and nonimmune pigeons infected with three different strains of Trichomonas gallinae. Strain I (nonvirulent) produced no change in the relative concentration of serum components. Strains II (oral canker) and III (Jones' Barn) produced decreases in albumin and alpha globulins, and increases in beta and gamma globulins between the 7th and 20th days post
Authors
R. M. Kocan, C. M. Herman