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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: 1934

Mathematics and mallard management 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...
Authors
L.M. Cowardin, Douglas H. Johnson

A slough for saving A slough for saving

Abstract has not been submitted
Authors
Gary L. Krapu, J.L. Eldridge

Mate preference in wild and domesticated (game-farm) mallards: II. Pairing success Mate preference in wild and domesticated (game-farm) mallards: II. Pairing success

Experiments were designed to determine whether assortative mating occurs in wild and game-farm mallard strains (Anas platyrhynchos). Mallard males of either strain raised with females of their own strain courted females of their own strain more than females of the opposite strain, and these males were only successful in pairing with females of their own strain. Males raised with females...
Authors
K.M. Cheng, R.N. Shoffner, R.E. Phillips, F.B. Lee

Classification of wetlands and deepwater habitats of the United States 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...
Authors
L.M. Cowardin, V. Carter, F.C. Golet, E.T. LaRoe
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