Feeding ecology of the pintail (Anas acuta) in North Dakota / Gary L. Krapu
Material type:
TextPublication details: Ames, IA : Iowa State University, 1972.Description: iii, 88 leaves : ill. ; 28 cmOnline resources: Dissertation note: Thesis (Ph.D.)--Iowa State University, 1972 Abstract: The pintail is among the most common of North American waterfowl and ranked second only to the mallard (Anas platyrhynchos) in hunter kill during 1969 and 1970 based on statistics reported by Croft (1971).Despite its common occurrence, information is lacking on feeding ecology during the breeding period. Martin et al. (1951) noted that nearly all of 787 pintails utilized in their food habitats analyses had been taken in fall and winter. During the past decade, the food habitats of most other major species of ducks breeding in the prairie pothole region have been described (Perret, 1962: Bartonek and Hickey, 1969a; Dirschl, 1969;Swanson and Nelson, 1971. A study of pintail feeding ecology was considered necessary because the shallow wetland habitat where pintails breed in the prairie pothole region is undergoing drastic modification from organized drainage, tillage and other land-use practices. Specific major goals were to: (1) determine food habits of adult pintails in major foragin
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Thesis (Ph.D.)--Iowa State University, 1972
Includes bibliographical references (leaves 80-86).
The pintail is among the most common of North American waterfowl and ranked second only to the mallard (Anas platyrhynchos) in hunter kill during 1969 and 1970 based on statistics reported by Croft (1971).Despite its common occurrence, information is lacking on feeding ecology during the breeding period. Martin et al. (1951) noted that nearly all of 787 pintails utilized in their food habitats analyses had been taken in fall and winter. During the past decade, the food habitats of most other major species of ducks breeding in the prairie pothole region have been described (Perret, 1962: Bartonek and Hickey, 1969a; Dirschl, 1969;Swanson and Nelson, 1971. A study of pintail feeding ecology was considered necessary because the shallow wetland habitat where pintails breed in the prairie pothole region is undergoing drastic modification from organized drainage, tillage and other land-use practices. Specific major goals were to: (1) determine food habits of adult pintails in major foragin