Survival in wood duck broods
Journal of Wildlife Management
By: F. B. McGilvrey
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Abstract
Mortality of wood ducklings (Aix sponsa) from hatching to 6 weeks of age averaged 47 percent during a 4-year study at the Patuxent Wildlife Research Center. Over 90 percent of the total mortality occurred during the first 2 weeks of life. Brood bonds began to dissolve after the fifth week. hlortality after 2 weeks was so low that Class I1 broods were believed to provide reliable estimates of production to flying age. Once-a-week brood censuses proved unreliable in estimating survival, but twice-a-xveek counts were accurate enough to estimate total broods and survival to Class II age.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Survival in wood duck broods |
| Series title | Journal of Wildlife Management |
| Volume | 33 |
| Issue | 1 |
| Year Published | 1969 |
| Language | English |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Description | 73-76 |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Journal of Wildlife Management |
| First page | 73 |
| Last page | 76 |
| Google Analytic Metrics | Metrics page |