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Urban waterfowl population: Ecological evaluation of management and planning
Authors:David M. Greer
Affiliation:(1) Program in Environmental Science and Regional Planning, Washington State University, 99164 Pullman, Washington;(2) Present address: Tahoe Regional Planning Agency, P.O. Box 8896, 95731 South Lake Tahoe, CA
Abstract:
An urban population of ducks in Puyallup, Washington, USA was studied for 14 consecutive months beginning in November 1978. Observations were made weekly from four study sites where ducks would congregate at early morning hours. Factors contributing to the presence of waterfowl in Puyallyup included abundant food supplies and a creek corridor that connected fragmented habitats in the urban area to the larger rural populations of waterfowl. Mallards (Anas platyrhynchos) were the most abundant of the 13 species observed and were the only ducks remaining during the nesting season. Habitat size and complexity were important factors influencing the species diversity of a particular site. Nesting success of mallards was poor due to limited distribution of nesting habitat, intraspecific aggression, and human disturbance. Both site-specific and more broad-based strategies are suggested for managing and planning for duck populations in urban areas.
Keywords:Urban wildlife  Waterfowl  Ducks  Wildlife habitat  Island biogeography  Ecological diversity  Mallards  Wigeons  Puyallup  Western Washington  Urbanization
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