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: 1907
Death feigning by ducks in response to predation by red foxes (Vulpes fulva)
Predation by captive red foxes (Vulpes fulva) on approximately 50 ducks comprised of five species was observed in tests conducted at the Northern Prairie Wildlife Research Center, Jamestown, North Dakota. Most ducks were attacked from a rear or lateral position and seized in the cervical or thoracic region. All birds became immobile (death-feigned) immediately when seized and with few exceptions r
Authors
Alan B. Sargeant, L. E. Eberhardt
A spring aerial census of red foxes in North Dakota
Systematic aerial searches were flown on transects to locate adult red foxes (Vulpes vulpes), pups, and rearing dens on 559.4 km2 (six townships) in eastern North Dakota during mid-May and mid-June each year from 1969 through 1973 and during mid-April 1969 and early May 1970. The combined sightings of foxes and fox dens from the mid-May and mid-June searches were used to identify individual fox fa
Authors
A. B. Sargeant, W.K. Pfeifer, S.H. Allen
Some nutritional aspects of reproduction in prairie nesting pintails
The nutritional significance of invertebrate foods in the diet of breeding hen waterfowl during the period of egg formation is discussed. Proximate, elemental, and amino acid analyses of the principal foods consumed by hen pintails (Anas acuta) during the nesting season indicate the animal foods selected are rich sources of protein and calcium, whereas plant foods tested were low in protein, parti
Authors
G.L. Krapu, G.A. Swanson
Migration of birds in North Dakota during fall 1974
Abstract has not been submitted
Authors
J. T. Lokemoen, D. H. Johnson
Breeding bird populations of selected grasslands in east-central North Dakota -- 1975 - Kentucky blue grass prairie and mixed prairie I-V
Abstract has not been submitted
Authors
D. H. Johnson
Feeding Ecology of Breeding Blue-Winged Teals
A 5-year investigation of factors influencing the selection of foods consumed by blue-winged teals (Anas discors) during the breeding season in the glaciated prairie region of south-central North Dakota showed that birds first arriving on the breeding grounds consumed a diet consisting of 45 percent invertebrates. The proportion of animal foods in the diet increased to 95 percent at the onset of t
Authors
George A. Swanson, Mavis I. Meyer, Jerome R. Serie
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
Habitat management considerations for prairie chickens
Lack of nesting and brood rearing habitat appears to be the universal limiting factor for prairie chickens (Tympanuchus cupido pinnatus) throughout their range. Grasslands are essential to prairie chickens, but vary widely in quality and thus in their ability to support prairie chickens. High-quality habitat is grassland providing residual vegetation averaging about 20 inches in height in spring a
Authors
L.M. Kirsch