Publications
USGS Northern Prairie Wildlife Research Center staff publish results of their research in USGS series reports and in peer-reviewed journals. Publication links are below. Information on all USGS publications can be found at the USGS Publications Warehouse.
Filter Total Items: 1902
Breeding bird populations of selected grasslands in east-central North Dakota -- 1974 - Kentucky bluegrass prairie and mixed prairie I-V, VII
Abstract has not been submitted
Authors
D. H. Johnson
Relationships between chemical structure and rat repellency: II. compounds screened between 1950 and 1960
Over 4,600 compounds, chiefly organic types, were evaluated using both a food acceptance test (Part A) and a barrier penetration bioassay (Part B), to correlate relationships between chemical structure and rodent repellency. These chemicals are indexed and classified according to the functional groups present and to the degree of substitution within their molecular structures. The results of reduc
Authors
Walter A. Bowles, V. A. Adomaitis, J.B. DeWitt, J.J. Pratt
Chemical stability of preserved oligotrophic water samples
Tests were conducted to determine whether changes that may occur in the chemical characteristics of stored oligotrophic waters collected on 15 sites in northeastern Minnesota were affected by chloroforming. Chloroform was added on site to one of each pair of samples to stabilize the organic content of the water by preventing biological decomposition. The samples were subsequently stored at 25 deg.
Authors
V. A. Adomaitis, J.A. Shoesmith, G.A. Swanson
A preliminary classification of wetland plant communities in north-central Minnesota
A classification of wetland plant communities was developed for a study area in north-central Minnesota in order to analyze data on waterfowl use of habitat that were gathered by radio telemetry. The classification employs features of several earlier classifications in addition to new classes for bogs and lakeshore communities. Brief descriptions are given for each community, and the important pla
Authors
L.M. Cowardin, D. H. Johnson
Land use and prairie grouse population relationships in North Dakota
The relationship between prairie grouse and land use was studied during the period 1964-71. Prairie chickens (Tympanuchus cupido) declined from 48 males in 1964 to none in 1971. Sharp-tailed grouse (Pedioecetes phasianellus) declined from 166 males in 1964 to 57 in 1971. These declines were related to the decline in vigor and eventual loss of Soil Bank habitat on the study area. Two new courtship
Authors
L.M. Kirsch, A.T. Klett, H.W. Miller
Maternal nesting behaviour by male mallards
Abstract has not been submitted
Authors
C.W. Dane, W. Steffen, P. Caldwell
Waterfowl investigators bug ducks
Abstract has not been submitted
Authors
D.S. Gilmer, T.J. Dwyer, S.R. Derrickson
A method to determine waterfowl shooting distances
Long-range shooting at ducks and geese frequently results in a high crippling loss, unretrieved birds and frustrated hunters. A principal problem has been the general inability of hunters or observers to properly judge distance of birds. This paper describes a reasonably accurate method developed to determine shooting distances to geese. Two observers utilized transit-mounted 4X hunting scopes to
Authors
D.A. Davenport, G.A. Sherwood, H. W. Murdy
Analysis of radiotracking data using digitized habitat maps
A method is described that provides a rapid and accurate analysis of habitat used by radio-equipped animals. The digitizer (basically an X-Y plotter in reverse) converts maps into digital form by describing each habitat unit as a polygon that closely approximates the actual shape of the unit. The coordinates of each polygon are then stored on magnetic tape. Habitat classification data and other in
Authors
D.S. Gilmer, S.E. Miller, L.M. Cowardin
Red-winged blackbirds nesting near Great Slave Lake, N.W.T
No abstract available.
Authors
Gary Krapu