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Classification of Wetlands and Deepwater Habitats of the United States
From foreword: "This report represents the most current methodology available for wetland classification and culminates a long-term effort involving many wetland scientists."
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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 byExpand
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Evaluations of duck habitat and estimation of duck population sizes with a remote-sensing-based system
Abstract : 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 toExpand
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Indicators of Wetland Condition for the Prairie Pothole Region of the United States
We describe a study designed to evaluate the performance ofwetland condition indicators of the Prairie Pothole Region (PPR)of the north central United States. Basin and landscape scaleindicators wereExpand
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Wetland use, settling patterns, and recruitment in mallards
The correlation between number of May ponds in the Prairie Pothole Region (PPR) of North America and size of the continental mallard (Anas platyrhynchos) breeding population the following springExpand
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Natural Cavities Used by Wood Ducks in North-Central Minnesota
Radio telemetry was used to locate 31 wood duck (Aix sponsa) nest cavity sites in 16 forest stands. Stands were of 2 types: (1) mature (t = 107 years) northern hardwoods (10 nest sites), and (2)Expand
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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 andExpand
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Procedures for the use of aircraft in wildlife biotelemetry studies
This is a report on the state of the art methodology and on questions that arise while one is preparing to use aircraft in a biotelemetry study. In general the first step in preparing to mount anExpand
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A model of the productivity of the mallard duck
Abstract This paper describes a stochastic computer model that simulates recruitment of the mallard (Anas platyrhynchos) under different habitat conditions and management scenarios. The modelExpand
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