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
Spring mortality of insectivorous birds in southern Manitoba
Abstract has not been submitted
Authors
J.R. Serie, R. E. Jones
Ferruginous hawk nesting ecology and raptor populations in northern South Dakota
No abstract available.
Authors
J. T. Lokemoen, H. F. Duebbert
A hematologic survey of captive waterfowl
Hematologic parameters were studied in giant Canada geese (Branta canadensis maxima), mallard ducks (Anas platyrhynchos platyrhynchos) and various species of diving ducks at seasonal intervals throughout the year. Highest values for packed cell volume, hemoglobin content and erythrocyte counts were found in the winter and pre-nesting periods. Mean corpuscular volume and mean corpuscular hemoglobin
Authors
H.J. Shave, V. Howard
Monitoring the breeding habitats of migratory waterfowl
No abstract available at this time
Authors
D.S. Gilmer, A.T. Klett, E.A. Work
Utilization of Skylab (EREP) system for appraising changes in continental migratory bird habitat
The author has identified the following significant results. Surface water statistics using data obtained by supporting aircraft were generated. Signature extraction and refinement preliminary to wetland and associated upland vegetation recognition were accomplished, using a selected portion of the aircraft data. Final classification mapping and analysis of surface water trends will be accomplishe
Authors
E.A. Work, D.S. Gilmer
A rural mail-carrier index of North Dakota red foxes
Rural mail-carrier sightings of red foxes (Vulpes vulpes) during mid-April, -July, and -September of 1969-73 were compared to spring fox family estimates derived by aerial searches of six townships. The mid-April mail-carrier index reflected annual fox density changes on the six townships (correlation coefficient = 0.958) . Random exclusions of individual mail-carrier reports indicated participati
Authors
S.H. Allen, A. B. Sargeant
Survival of wood duck and mallard broods in north-central Minnesota
Duckling survival in wood duck (Aix sponsa) and mallard (Anas platyrhynchos) broods was estimated from data obtained from 71 radio-marked brood hens on a study area in north-central Minnesota. Radio-marked hens produced 30 broods during the study, and 41 hens already leading broods were captured and radio-marked. Production estimates based on brood size counts were inflated by about 38 percent for
Authors
I. J. Ball, D.S. Gilmer, L.M. Cowardin, J. H. Riechmann
Leech (Hirudinea) infestations among waterfowl near Yellowknife, Northwest Territories
Fourteen species of aquatic birds, including 11 species of ducks, were infested with leeches Theromyzon rude and Placobdella ornata near Yellowknife, Northwest Territories. Leeches infested 88% of 41 American Wigeon (Anas americana) and 31% of 86 Lesser Scaup (Aythya affinis) examined after death. Lesser Scaup captured by drive-trapping contained significantly more leeches than undisturbed ducks.
Authors
James C. Bartonek, David L. Trauger
Effects of agricultural burning on nesting waterfowl
Agricultural burning in an intensively farmed region within Manitoba's pothole district is shown to affect the nesting activities of ground-nesting ducks. All species, except Blue-winged Teal (Anas discors), preferred unburned nest cover, although success was higher in burned areas, where predators may have exerted less influence. Attitudes of farmers, burning chronology, and nest destruction by f
Authors
E. K. Fritzell
Habitat use and home range of mallards breeding in Minnesota
Telemetry techniques were used to study habitat use and home range of 12 drake and 12 hen mallards (Anas platyrhynchos) in the forested region of north-central Minnesota during the 1968-72 breeding seasons. Circumneutral bogs and seasonal wetlands were the most frequently used communities; the lakeshore communities most used were sand-gravel, overhanging brush, and bog mat. Based on the availabili
Authors
D.S. Gilmer, I. J. Ball, L.M. Cowardin, J. Riechmann