Duck nesting use of artificial nesting islands : Jeffrey W. Nelson. 1979-84 /
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TextPublication details: 1985. Ducks Unlimited Canada,Description: 31 p. ; 28 cmOnline resources: Abstract: Duck nesting data collected during B.S.G. studies of artificial islands from 1979-1984 were analyzed to determine 1) nesting densities and success rates typical of islands built according to BTM standards, 2)island parameters that relate to high nest densities and success, and 3)changes in BTM guidelines that could be made on the basis of our data.An average of 3.34 broods were produced on Prairie and Parkland islands that were: 1) between 0.04 and 0.25 ha in size, 2) well vegetated, and 3) more than 100 m from shore. By comparison, previous studies estimated production at 2.8 broods/island, regardless of whether each island met standard specifications. Only projects producing at least 1.7 broods/island, on average, were included in that estimate, however.
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Electronic Report
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Includes bibliographical references (p. 19).
Duck nesting data collected during B.S.G. studies of artificial islands from 1979-1984 were analyzed to determine 1) nesting densities and success rates typical of islands built according to BTM standards, 2)island parameters that relate to high nest densities and success, and 3)changes in BTM guidelines that could be made on the basis of our data.An average of 3.34 broods were produced on Prairie and Parkland islands that were: 1) between 0.04 and 0.25 ha in size, 2) well vegetated, and 3) more than 100 m from shore. By comparison, previous studies estimated production at 2.8 broods/island, regardless of whether each island met standard specifications. Only projects producing at least 1.7 broods/island, on average, were included in that estimate, however.