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
Distribution and status of marine birds breeding along the coasts of the Chukchi and Bering seas
The Alaska coast fronting on the Chukchi and Bering seas, exclusive of the Aleutian Islands, supports seven complexes of marine bird colonies numbering more than 1 million birds each, nine colonies of 100,000 to almost 1 million birds, and many smaller colonies. Colonies are found on most headlands and islands and are dominated numerically by alcids and kittiwakes (Rissa sp.). Estuarine habitats (
Authors
J. C. Bartonek, S.G. Sealy
Sea ice as a factor in seabird distribution and ecology in the Beaufort, Chukchi, and Bering seas
No abstract available.
Authors
G.J. Divoky
Classification of wetlands and deepwater habitats of the United States
This classification, to be used in a new inventory of wetlands and deepwater habitats of the United States, is intended to describe ecological taxa, arrange them in a system useful to resource managers, furnish units for mapping, and provide uniformity of concepts and terms. Wetlands are defined by plants (hydrophytes), soils (hydric soils), and frequency of flooding. Ecologically related areas of
Authors
L.M. Cowardin, V. Carter, F.C. Golet, E.T. LaRoe
[Book review] Role of the wolf in a deer decline in the Superior National Forest, by L. David Mech and Patrick D. Karns
Review of: Role of the Wolf in a Deer Decline in the Superior National Forest. Volume 148 of USDA Forest Service Research Paper. L. David Mech and Patrick D. Karns. North Central Forest Experiment Station, Forest Service, United States Department of Agriculture, 1977. 23 pages.
Authors
R. J. Greenwood
Mathematics and mallard management
Waterfowl managers can effectively use simple population models to aid in making management decisions. We present a basic model of the change in population size as related to survival and recruitment. A management technique designed to increase survival of mallards (Anas platyrhynchos) by limiting harvest on the Chippewa National Forest, Minnesota, is used to illustrate the application of models i
Authors
L.M. Cowardin, D. H. Johnson
Fall foods of migrant common snipe in North Dakota
Abstract has not been submitted
Authors
E. K. Fritzell, G.A. Swanson, M.I. Meyer
Canvasback duck recovers from compound luxation to wing
Abstract has not been submitted
Authors
H. A. Doty
Forty-second breeding bird census - Kentucky blue grass prairie
Abstract has not been submitted
Authors
D. H. Johnson
Annual cycle of plasma luteinizing hormone and sex hormones in male and female mallards (Anas platyrhynchos)
Comparisons between 'wild'and 'game farm' mallards (Anas platyrhynchos) were made to assess the differences in the temporal changes of plasma hormones. Seasonal variation in the levels of immunoreactive luteinizing hormone (LH), testosterone, 5 -dihydrotestosterone (DHT), estrone, estradiol-17i?? and progesterone were measured in male and female mallards. In all birds there was a vernal increase i
Authors
R.S. Donham
Age-related aspects of mallard reproduction
Abstract has not been submitted
Authors
G.L. Krapu, H. A. Doty