Spatial and temporal variation in nest success of prairie ducks / Instittute for Wetland and Waterfowl Research.

Includes bibliographical references.

The Prairie Pothole Region (PPR) of the United States and Canada encompasses approximately 300,000 square miles of the most important waterfowl-breeding habitat in North America. Depending on annual wetland conditions, anywhere from one-half to two-thirds of the continent's breeding duck population settles in the PPR. In addition, the PPR provides critical breeding habitat for over 50 species of wetland and grassland birds. Since European settlement prairie waterfowl and land-birds have shown pronounced long-term declines, and in 1986, the North American Waterfowl Management Plan (NAWMP) was drafted to address the decline in waterfowl populations. NAWMP identified habitat restoration in the PPR as its single most important conservation goal.As part of it's commitment to NAWMP, Ducks Unlimited Canada (DUC)unveiled Conservation Vision for the Prairie Pothole Ecoregion, (DU Canada 1999) which outlined the principles and assumptions inherent in developing a long-term conservation plan f