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
Waterfowl production on stock-watering ponds in the northern plains
In a 5-year study of stock-watering ponds in western North Dakota, pond size was found to be the major factor influencing duck use. As pond size increased, total pair and brood use per pond increased. Pairs used ponds as small as 0.1 acre in size, but broods were seldom seen on ponds of less than 1.0 surface acre. Dam-type ponds larger than 1.0 surface acre comprised only 29% of all man-made ponds
Authors
J. T. Lokemoen
Selective predation by mink, Mustela vison, on waterfowl
Predation by mink (Mustela vison) on three types of ducks (captive, pen-reared-released and wild) was documented in two studies at the Northern Prairie Wildlife Research Center, Jamestown, North Dakota. In the first study, 36 of 60 flightless adult and juvenile ducks held on eight 0.1-acre experimental ponds disappeared between 10 July and 4 August 1969. Available evidence indicated that all were
Authors
Alan B. Sargeant, George A. Swanson, H. A. Doty
An upland nest of the redhead far from water
Abstract has not been submitted
Authors
J. T. Lokemoen, H. F. Duebbert
Age, growth, spawning season, and fecundity of the trout-perch (Percopsis omiscomaycus) in southeastern Lake Michigan
Growth of trout-perch (Percopsis omiscomaycus) in the first 2 years of life was somewhat slower in southeastern Lake Michigan (average length at end of second year, 83 mm) than in Lower Red Lake, Minnesota (90 mm), but considerably faster than in Lake Superior (58 mm); size differences in later years were slightly less pronounced. Young fish began growing earlier in the year (some before June 20)
Authors
Robert House, LaRue Wells
Application of theory and research in fishery management of the Laurentian Great Lakes
The Great Lakes have a high potential for the conduct of research and useful application of research findings, but the history of the Great Lakes indicates that extensive research and intensive management have failed to prevent deterioration of the fisheries. At times the research was not done before a loss occurred, or did not provide the information needed to solve a problem, or was not interpre
Authors
Stanford H. Smith
Lake Erie's fish community: 150 years of cultural stresses
No abstract available.
Authors
H.A. Regier, W.L. Hartman
Review of Aquatic oligochaeta of the world, by R. O. Brinkhurst and B. G. M. Jamieson, with contributions by D. G. Cook, D. V. Anderson, and J. van der Land, University of Toronto Press, Toronto, 1971
Abstract has not been submitted
Authors
Jarl K. Hiltunen
Research on the sea otter at Amchitka Island
No abstract available at this time
Authors
J. A. Estes, N. S. Smith
Scope of Corps of Engineers cooperative research aquatic plant control program: white amur studies: Appendix B
No abstract available at this time
Authors
J. Stanley, K. Sneed