Movements, survival, and habitat use of mallard broods hatched from predator reduced nesting habitats in eastern South Dakota / Peter J. Bergmann.
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TextPublication details: Brookings, SD : South Dakota State University, 1992.Description: ix, 62 leaves : ill., 1 map ; 28 cmOnline resources: Abstract: The Small Unit Management Program or SUMP was created to provide areas of high quality, predator reduced nesting habitats. These areas often produce high numbers of hatched ducklings, however, the eventual fate of these ducklings is often poorly understood. The objectives of our study were: to determine movements of mallard (Anas platyrhynchos) broods from nest site to brood rearing wetlands, and thereafter; to determine survival of broods hatched from SUMP areas; to determine general habitat characteristics of brood rearing wetlands. Three types of SUMP areas were used as study sites including: a natural island, a peninsula cutoff, and an electric fenced peninsula. We captured a total of 62 mallard hens at their nests. Forty-six hens successfully hatched their clutch, 6 nests were destroyed, and 10 abandonned. Brood and duckling survival were estimated to both 49 and 28 days. Fifteen broods (0.33)had at least 1 duckling surviving to 49 days. Nineteen broods (0.41) had at least one d
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Thesis(M.S.)--South Dakota State University, 1992.
Includes bibliographical references (leaves 58-62).
The Small Unit Management Program or SUMP was created to provide areas of high quality, predator reduced nesting habitats. These areas often produce high numbers of hatched ducklings, however, the eventual fate of these ducklings is often poorly understood. The objectives of our study were: to determine movements of mallard (Anas platyrhynchos) broods from nest site to brood rearing wetlands, and thereafter; to determine survival of broods hatched from SUMP areas; to determine general habitat characteristics of brood rearing wetlands. Three types of SUMP areas were used as study sites including: a natural island, a peninsula cutoff, and an electric fenced peninsula. We captured a total of 62 mallard hens at their nests. Forty-six hens successfully hatched their clutch, 6 nests were destroyed, and 10 abandonned. Brood and duckling survival were estimated to both 49 and 28 days. Fifteen broods (0.33)had at least 1 duckling surviving to 49 days. Nineteen broods (0.41) had at least one d