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: 41756
An improved method of testing for botulinus toxin by the use of penicillin
No abstract available.
Authors
E. R. Quortrup
The source of animals moving into a depopulated area
SUMMARY 1. The wood mouse (Peromyscus leucopus) population in a 17-acre area of bottomland forest was live-trapped, marked and released over a 7-night period. Following the live-trapping a central 1-acre plot was snap-trapped for 35 consecutive nights. All adult animals taken in the central snap-trapped plot had previously been taken, marked, and released in the live-trapped 17-acre area.
Authors
L. F. Stickel
Experimental analysis of methods for measuring small mammal populations
SUMMARY: The Peromyscus leucopus on a 17-acre study area were live-trapped, marked, and released over a seven-day period. On the three following nights intensive snap-trapping was done on the central acre of the study plot. The animals caught by snap traps in the central acre represented the population of the central acre and several surrounding acres. By the currently accepted methods of
Authors
L. F. Stickel
Sexual dimorphism in the pelvic spurs of Enygrus
No abstract available.
Authors
W. H. Stickel, L. F. Stickel
Nutrient content of some winter grouse foods
Seventeen preferred grouse foods were collected during the late winter and analyzed for nutrient content. The results include moisture, crude protein, ether extract, crude fiber, nitrogenfree extract, ash, calcium, phosphorus, and gross energy content expressed both on moisture free and fresh bases.....The preferred winter foods of grouse are characterized by a high content of dry substance and of
Authors
R.R. Treichler, R.W. Stow, A.L. Nelson
Relative toxicity of suspension and oil formulations of DDT to native fishes in Back Creek, West Virginia
No abstract available.
Authors
E. W. Surber, D.D. Friddle