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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

Differential effects of coyotes and red foxes on duck nest success Differential effects of coyotes and red foxes on duck nest success

Low recruitment rates prevail among ducks in the Prairie Pothole Region of North America, primarily because of high nest depredation rates. The red fox (Vulpes vulpes) is a major predator of duck eggs, but fox abundance is depressed by coyotes (Canis latrans). We tested the hypothesis that nest success of upland-nesting ducks is higher in areas with coyotes than in areas with red foxes...
Authors
Marsha A. Sovada, A. Sargeant, J.W. Grier

Evaluations of duck habitat and estimation of duck population sizes with a remote-sensing-based system Evaluations of duck habitat and estimation of duck population sizes with a remote-sensing-based system

During 1987-90, we used high-altitude photography, aerial videography, counts, and models to estimate sizes of breeding populations of dabbling ducks (Anatinae) and duck production and to identify duck habitat on U.S. Fish and Wildlife Service land and easements and on private land in the prairie pothole region of the United States. The study area contained about 3.1 million wetland...
Authors
Lewis M. Cowardin, Terry L. Shaffer, Phillip M. Arnold

Effects of climate on numbers of northern prairie wetlands Effects of climate on numbers of northern prairie wetlands

The amount of water held in individual wetland basins depends not only on local climate patterns but also on groundwater flow regime, soil permeability, and basin size. Most wetland basins in the northern prairies hold water in some years and are dry in others. To assess the potential effect of climate change on the number of wetland basins holding water in a given year, one must first...
Authors
Diane L. Larson

Research access to privately owned wetland basins in the prairie pothole region of the United States Research access to privately owned wetland basins in the prairie pothole region of the United States

We describe efforts to obtain access for research to 81 wetland basins on 69 farms in four zones of the Prairie Pothole Region of North Dakota, South Dakota, and Minnesota. Access was obtained to 54% of the farms in areas where land was intensively cropped and 87% of farms in areas of low cropping intensity. On average, 1.35 operators had to be contacted and 1.70 interviews were required...
Authors
David P. Fellows, Thomas K. Buhl

Factors associated with duck nest success in the prairie pothole region of Canada Factors associated with duck nest success in the prairie pothole region of Canada

Populations of some dabbling ducks have declined sharply in recent decades and information is needed to understand reasons for this. During 1982-85, we studied duck nesting for 1-4 years in 17 1.6 by 16.0-km, high-density duck areas in the Prairie Pothole Region (PPR) of Canada, 9 in parkland and 8 in prairie. We estimated nest-initiation dates, habitat preferences, nest success, and...
Authors
Raymond J. Greenwood, Alan B. Sargeant, Douglas H. Johnson, Lewis M. Cowardin, Terry L. Shaffer

Double-crested cormorants along the upper Mississippi River Double-crested cormorants along the upper Mississippi River

The Upper Mississippi River is an important habitat corridor for migratory birds and other wildlife, and it supports an important commercial and sport fishery. A study was initiated by the U.S. Fish and Wildlife Service in 1991 to describe Double-crested cormorant (Phalacrocorax auritus) distribution and abundance on the Upper Mississippi River throughout the year to better understand...
Authors
E.M. Kirsch

Double-crested cormorants along the Upper Mississippi River Double-crested cormorants along the Upper Mississippi River

The Upper Mississippi River is an important habitat corridor for migratory birds and other wildlife, and it supports an important commercial and sport fishery. A study was initiated by the U.S. Fish and Wildlife Service in 1991 to describe Double-crested cormorant (Phalacrocorax auritus) distribution and abundance on the Upper Mississippi River throughout the year to better understand...
Authors
E.M. Kirsch

A noteworthy record and the breeding distribution of the blue grosbeak in North Dakota A noteworthy record and the breeding distribution of the blue grosbeak in North Dakota

The northern limit of the blue grosbeak's (Guiraca caerulea) breeding distribution occurs in southern North Dakota. Records of the blue grosbeak in North Dakota are uncommon. Here, I report my observation of a blue grosbeak at a site where the species was recorded 25 years earlier. A summary of the species' distribution and records in North Dakota are provided.
Authors
L.D. Igl
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