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: 1962
Weights of wild mallard Anas platyrhynchos, gadwall A. strepera, and blue-winged teal A. discors during the breeding season Weights of wild mallard Anas platyrhynchos, gadwall A. strepera, and blue-winged teal A. discors during the breeding season
During 1976-81 we weighed several thousands of wild Mallard, Gadwall, and Blue-winged Teal in central North Dakota to examine duckling growth patterns, adult weights, and the factors influencing them. One-day-old Mallard and Gadwall averaged 32.4 and 30.4 g, respectively, a reduction of 34% and 29% from fresh egg weights. In all three species, the logistic growth curve provided a good...
Authors
John T. Lokemoen, Douglas H. Johnson, David E. Sharp
Producing ducks using wire and electricity Producing ducks using wire and electricity
Abstract has not been submitted
Authors
J. T. Lokemoen
Estimating nest success: When Mayfield wins Estimating nest success: When Mayfield wins
The Apparent estimator of nest success may be severely biased because unsuccessful nests are less likely to be found than are successful nests. The Mayfield estimator is a preferred alternative. The situation is somewhat different for nests in colonies or on islands because of greater visibility of nests, higher synchrony of nesting, and often higher hatch rates than dispersed mainland...
Authors
Douglas H. Johnson, T.L. Shaffer
Comparison of activities within families and pairs of wintering Canada geese Comparison of activities within families and pairs of wintering Canada geese
Abstract has not been submitted
Authors
J. E. Austin
Sago wetlands important to migrating canvasbacks Sago wetlands important to migrating canvasbacks
No abstract available.
Authors
H.A. Kantrud
Premigrational movements and behavior of young mallards and wood ducks in north-central Minnesota Premigrational movements and behavior of young mallards and wood ducks in north-central Minnesota
Movements and behavior of 89 young mallards (Anas platyrhynchos) and 48 young wood ducks (Aix sponsa) were monitored on a 932-km2 study area in north-central Minnesota in late summer and fall, 1972-74, with telemetry, visual observation, and aerial surveys. Initial flights of both species were confined to the natal (brood) marsh; first flights away from the natal marsh occurred in the...
Authors
R.E. Kirby, L.M. Cowardin, J.R. Tester
Duck harvest on public hunting areas in California Duck harvest on public hunting areas in California
No abstract available.
Authors
D.S. Gilmer, J.M. Hicks, J. P. Fleskes, D.P. Connelly
Dispersal in the communally breeding groove-billed ani (Crotophaga sulcirostris) Dispersal in the communally breeding groove-billed ani (Crotophaga sulcirostris)
We studied dispersal in a color-banded population of the Groove-billed Ani (Crotophaga sulcirostris) in Costa Rica. Eight percent of the young alive at the end of the breeding season bred on their natal territories the next year and 4% remained but did not breed. Thirteen percent dispersed successfully within the study area and bred in communal groups or simple pairs. The remaining 75%...
Authors
B. S. Bowen, Rolf R. Koford, S.L. Vehrencamp
Rice available to waterfowl in harvested fields in the Sacramento Valley, California Rice available to waterfowl in harvested fields in the Sacramento Valley, California
Rice fields in the Sacramento Valley, California were sampled in 1985 and 1986 to determine the weight of rice seed remaining in the fields immediately after harvest and again after the fields were burned. No significant differences were found between years (P>0.05). The pooled mean was 388 kg/ha in harvested fields and 276 kg/ha in burned fields. These values are less than estimates...
Authors
M. R. Miller, D.E. Sharp, D.S. Gilmer, W.R. Mulvaney
The last watering holes on the prairie The last watering holes on the prairie
Abstract has not been submitted
Authors
Gary L. Krapu
Breeding bird census: 1988 - Kentucky bluegrass prairie: mixed prairie I-V Breeding bird census: 1988 - Kentucky bluegrass prairie: mixed prairie I-V
Abstract has not been submitted
Authors
Douglas H. Johnson