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Importance of Individual Species of Predators on Nesting Success of Ducks in the Canadian Prairie Pothole Region

Acknowledgments

This study was part of a larger investigation involving the United States Fish and Wildlife Service, the Canadian Wildlife Service, and the provincial natural resource agencies of Alberta, Saskatchewan, and Manitoba. We appreciate the administrative and field support of these agencies and their staffs. Detailed maps of each study area were produced by the Fish and Wildlife Service's National Wetland Inventory. We are indebted to the many landowners who allowed access to their lands and offered hospitality to our field crews. For assistance in gathering and processing field data we are grateful to D. E. Sharp, M. A. Sovada, R. O. Woodward, several Fish and Wildlife Service Animal Damage Control personnel from North Dakota, several biologists from the Northern Prairie Wildlife Research Center, and the more than 50 temporary employees who made this study possible. M. D. Schwartz assisted with the preparation of the manuscript. T. L. Shaffer conducted much of data analysis and, along with R. R. Koford, T. W. Arnold, and an anonymous reviewer, provided useful comments on the manuscript.

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