Waterfowl production on three types of artificial nesting strucutres in South Dakota wetlands / Marcy Haworth
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TextPublication details: Brookings, SD : South Dakota State University, 1988.Description: ix, 79 leaves : ill. ; 29 cmOnline resources: Abstract: Artificial nesting structures are currently being used by various agencies to offset the decline in waterfowl production due to predation losses and degradation of nesting habitats. However, the various structure types available are not equally atttractive to nesting waterfowl. This study looked at 3 types of artificial nesting structures--open topped cone baskets, round hay bales, and concrete culverts--and evaluated their use, success, and production in South Dakota. Structure type and site characteristics were correlated to occupancy rates and nesting success. Sixty-eight baskets and 205 bales were moniotred during 1986, and 154 baskets, 200 bales, and 20 culverts were monitored in 1987. A total of 239 waterfowl nests were found for both years combined. Primary nesting species were mallards (Anas platyrhynchos), redheads (Aythya americana), and giant Canada geese (Branta canadensis). Occupancy rates averaged 24.0%, 45.7%, and 15.0%for baskets, bales, and culverts, respectively. Ne
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Thesis(M.S.)--South Dakota State University, 1988.
Includes bibliographical references (leaves 71-79).
Artificial nesting structures are currently being used by various agencies to offset the decline in waterfowl production due to predation losses and degradation of nesting habitats. However, the various structure types available are not equally atttractive to nesting waterfowl. This study looked at 3 types of artificial nesting structures--open topped cone baskets, round hay bales, and concrete culverts--and evaluated their use, success, and production in South Dakota. Structure type and site characteristics were correlated to occupancy rates and nesting success. Sixty-eight baskets and 205 bales were moniotred during 1986, and 154 baskets, 200 bales, and 20 culverts were monitored in 1987. A total of 239 waterfowl nests were found for both years combined. Primary nesting species were mallards (Anas platyrhynchos), redheads (Aythya americana), and giant Canada geese (Branta canadensis). Occupancy rates averaged 24.0%, 45.7%, and 15.0%for baskets, bales, and culverts, respectively. Ne