Impact of the Conservation Reserve Program on Duck
Recruitment in the U.S. Prairie Pothole Region
Acknowledgments
Funding for this study was provided by the Central Flyway Council; Ducks Unlimited Inc.'s Institute for Wetland and Waterfowl Research; Mississippi Flyway Council; U.S. Bureau of Reclamation, Billings, Montana; USFWS, Denver, Colorado; and U.S. Geological Survey, Northern Prairie Wildlife Research Center. The Wildlife Management Institute, Washington D.C., managed fund accounts for some contributors. We thank K. W. Harmon for helping to secure funding and L. M. Cowardin and H. A. Kantrud for assistance with study design. A. B. Sargeant and M. A. Sovada helped train field crews. We especially thank R. J. Greenwood, M. J. Rabenberg, and S. J. Vaa for collecting nest data on some study replicates. L. A. Lysne and D. A. Leschisin provided leadership to field crews during the pilot year, and D. E. Sharp and M. A. Johnson provided field assistance at critical times. We thank L. A. Murphy and J. A. Beiser for their many hours of diligent data editing and processing. U.S. Fish and Wildlife Service managers M. D. Blenden, F. G. Giese, D. L. Gilbert, R. A. Gilbert, T. W. Gutzke, M. J. Heisinger, H. J. Hoistad, R. A. Hollevoet, R. L. Howard, J. W. Koerner, S. J. Kresl, S. R. Pelizza, D. G. Potter, R. J. Vanden Berge, P. C. VanNingen, D. T. Walls, and their staffs provided logistical support and collected duck survey data used in this study. We thank R. L. Meeks for providing field staff support and equipment. D. A. Buhl, C. R. Loesch, and G. A. Sargeant prepared figures for the manuscript. B. D. Reynolds assisted with manuscript preparation. We are indebted to numerous field crew personnel whose dedicated efforts made this study a success. R. R. Cox, P. L. Flint, G. L. Krapu, J. K. Ringelman, M. A. Sovada, and 2 anonymous reviewers provided critical review of the manuscript. Finally, we are grateful to the many landowners who granted access to their CRP fields.
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