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: 1952
Some aspects of the breeding biology of the upland sandpiper in North Dakota Some aspects of the breeding biology of the upland sandpiper in North Dakota
Abstract has not been submitted
Authors
K.F. Higgins, L.M. Kirsch
Some nutritional aspects of reproduction in prairie nesting pintails 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 acut) during the nesting season indicate the animal foods selected are rich sources of protein and calcium, whereas plant foods tested were low in...
Authors
Gary L. Krapu, G.A. Swanson
Improved nasal-saddle marker for mallards Improved nasal-saddle marker for mallards
Abstract not available.
Authors
Harold A. Doty, R. J. Greenwood
Feeding Ecology of Breeding Blue-Winged Teals 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...
Authors
George A. Swanson, Mavis I. Meyer, Jerome R. Serie
Foods of breeding pintails in North Dakota Foods of breeding pintails in North Dakota
Food habits of breeding pintails (Anas acuta) were studied relative to sex, land use, and reproductive condition during the spring and summer of 1969, 1970, and 1971 in eastern North Dakota. Hens and drakes, respectively, consumed 79.2 percent and 30.0 percent animal matter on nontilled wetlands and consumed 16.6 percent and 1.1 percent animal matter on tilled wetlands. Aquatic dipterans
Authors
Gary L. Krapu
Remote sensing for identification and classification of wetland vegetation Remote sensing for identification and classification of wetland vegetation
Multispectral photography and ground truth were obtained on an area 12 miles (19.3 km) east of Bemidji, Minnesota, to identify and map wetlands less than 2 acres (0.8 hectare) in size, to map emergent vegetation in lakes, and to explore the feasibility of classifying vegetation from aerial photographs. Wetlands less than 2 acres in size were identified on photography taken in May 1971...
Authors
L.M. Cowardin, V.I. Myers
Estimating survival rates from banding of adult and juvenile birds Estimating survival rates from banding of adult and juvenile birds
The restrictive assumptions required by most available methods for estimating survival probabilities render them unsuitable for analyzing real banding data. A model is proposed which allows survival rates and recovery rates to vary with the calendar year, and also allows juveniles to have rates different from adults. In addition to survival rates and recovery rates, the differential...
Authors
Douglas H. Johnson
Upland duck nesting related to land use and predator reduction Upland duck nesting related to land use and predator reduction
Duck nesting was studied during 1971 in north-central South Dakota under four conditions: in idle, five or six year old fields of domestic grass-legume mixtures in an area where predators including the red fox (Vulpes fulva), raccoon (Procyon lotor), striped skunk (Mephitis mephitis), and badger (Taxidea taxus) were (1) reduced and (2) not reduced. Nesting was also studied in tracts of...
Authors
Harold F. Duebbert, H.A. Kantrud
Effects of radio packages on wild ducks Effects of radio packages on wild ducks
A total of 211 wild, free-flying mallards (Anas platyrhynchos) and wood ducks (Aix sponsa) were equipped with breast-mounted radio packages during the breeding seasons of 1968-72. Known predation loss was 7.6 and 12.0 percent for mallards and wood ducks respectively, 60 percent occurred within 3 weeks of instrumentation. The highest predation rate for mallards was 0.0048 kills per...
Authors
D.S. Gilmer, I.J. Ball, L.M. Cowardin, J. H. Riechmann
Avian mortality from collisions with overhead wires in North Dakota Avian mortality from collisions with overhead wires in North Dakota
Abstract has not been submitted
Authors
Gary L. Krapu
Relationships between chemical structure and rat repellency. II. Compounds screened between 1950 and 1960 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...
Authors
W.A. Bowles, V. A. Adomaitis, J.B. DeWitt, J.J. Pratt
Breeding of the black guillemot in northern Alaska Breeding of the black guillemot in northern Alaska
No abstract available.
Authors
G.J. Divoky, G.E. Watson, James C. Bartonek