A Study of Waterfowl Productivity
Date Published: 1955
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- Marquardt, Richard E.
University of Maine Graduate School
The purpose if this study was to gather evidence relative to the waterfowl productivity of an unmanaged sedge-meadow marsh in Maine. Emphasis was placed on the measurement of productivity, the effect of water level fluctuation in nesting birds. and the significance of territorialism on a breeding marsh. The study deals with the two principle nesting species in this site, the black duck (Anas Ribripes) and the ring-necked duck (Aythya collaris).
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