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: 1945
Classification of native vegetation at the Woodworth Station, North Dakota Classification of native vegetation at the Woodworth Station, North Dakota
Native prairie areas on the Woodworth Station were sampled, classified, described, and mapped. Transect sites were selectively located along different soil moisture gradients. Data were collected from 292 plots using a modified Braun-Blanquet cover estimation technique. Trees and tall shrubs (over 2 m) were not sampled because they made up less than 1% of all cover. Eve vegetation...
Authors
M.I. Meyer
The need for accuracy in modelling: An example The need for accuracy in modelling: An example
The need for accurate information in modelling depends on the objectives of the effort. but trustworthy data are essential for a model intended for use in the management of natural resources. This point is illustrated by referring to a recently published model of canvasback ducks. We demonstrate that several key assumptions are not supported by biological evidence, and that inferences...
Authors
Douglas H. Johnson, M.J. Conroy, J.D. Nichols
Mallard recruitment in the agricultural environment of North Dakota Mallard recruitment in the agricultural environment of North Dakota
Recruitment of a mallard (Anas platyrhynchos) population was assessed on a 10,041-km2 study area in central North Dakota during 1977-80. We equipped 338 hens with radio transmitters and monitored them during the breeding season. Two hundred thirty-five of these hens furnished data reported here. Habitat use, nest site selection, fate of nests, and the rate of renesting were measured...
Authors
L.M. Cowardin, D.S. Gilmer, Charles W. Shaiffer
Assessment of nasal marker materials and designs used on dabbling ducks Assessment of nasal marker materials and designs used on dabbling ducks
Abstract has not been submitted
Authors
J. T. Lokemoen, D.E. Sharp
Mortality of raccoons in North Dakota Mortality of raccoons in North Dakota
No abstract available.
Authors
E.K. Fritzell, Raymond J. Greenwood
Evaluation of implanted radio transmitters in ducks Evaluation of implanted radio transmitters in ducks
No abstract available.
Authors
Carl E. Korschgen, S.J. Maxson, V.B. Kuechle
Organochlorine contaminants in California waterfowl Organochlorine contaminants in California waterfowl
Concern has been expressed that the extensive use of organochlorine pesticides in California may be exposing waterfowl to hazardous contaminant levels. The objectives of our study were to: (1) determine concentrations of organochlorines in northern pintails (Anas acuta) from five important waterfowl wintering areas in California; (2) compare concentrations of organochlorines in selected...
Authors
Harry M. Ohlendorf, Michael R. Miller
Larval dermestid beetles feeding on nestling snail kites, wood storks, and great blue herons Larval dermestid beetles feeding on nestling snail kites, wood storks, and great blue herons
In recent years abdominal lesions attributable to larval dermestid beetles (Dermestes nidum) have appeared in nestling Snail (Everglade) Kites (Rostrhamus sociabilis), Wood Storks (Mycteria americana), and Great Blue Herons (Ardea herodias). Although it appears that most nestlings affected have survived, the degree of threat posed by dermestid larvae to various avian species is as yet...
Authors
N.F.R. Snyder, J.C. Ogden, J.D. Bittner, G.A. Grau
Habitat use by migrant sandhill cranes in Nebraska Habitat use by migrant sandhill cranes in Nebraska
The principal spring staging areas of the midcontinent population of sandhill cranes (Grus canadensis) are along the Platte and North Platte rivers in south-central Nebraska. Most of these lands are privately owned and managed for corn and cattle production. Diurnal habitat use by radio-tagged cranes was primarily in cropland (55%), native grassland (28%), and tame hayland (15%). Ninety...
Authors
Gary L. Krapu, D.E. Facey, E.K. Fritzell, Douglas H. Johnson
Renesting by canvasbacks in southwestern Manitoba Renesting by canvasbacks in southwestern Manitoba
No abstract available.
Authors
Harold A. Doty, David L. Trauger, Jerome R. Serie
Comparative ability of northern pintails, gadwalls, and northern shovelers to metabolize foods Comparative ability of northern pintails, gadwalls, and northern shovelers to metabolize foods
Feeding trials were used to compare the ability of northern pintails (Anas acuta), gadwalls (A. strepera), and northern shovelers (A. clypeata) to metabolize energy from a turkey starter ration, alfalfa pellets, and common barnyardgrass (Echinochloa crusgalli) seeds. No differences (P > 0.05) were detected among the three species for any of the three foods (kg body weight/day basis), for...
Authors
Michael R. Miller
Ecological distribution and crude density of breeding birds on prairie wetlands Ecological distribution and crude density of breeding birds on prairie wetlands
Breeding populations of 28 species of wetland-dwelling birds other than waterfowl (Anatidae) were censused on 1,321 wetlands lying within the prairie pothole region of North Dakota. Ecological distribution and two crude measures of relative density were calculated for the 22 commonest species using eight wetland classes. Semipermanent wetlands supported nearly two-thirds of the...
Authors
Harold A. Kantrud, Robert E. Stewart