Northern Prairie Wildlife Research Center (NPWRC) is one of 18 science and technology centers in the Biological Resources Discipline of the U.S. Geological Survey, administratively positioned in the Central Region, and geographically located in the northern Great Plains. The main campus is located in Jamestown, North Dakota. In addition, field stations are found at the University of Minnesota, St. Paul, the University of Missouri, Columbia, Mount Rushmore National Monument, South Dakota, and an unmanned station at Woodworth, North Dakota.

USGS Northern Prairie Wildlife Research Center
8711 37th Street Southeast
Jamestown, North Dakota 58401
Phone: (701) 253-5500 Fax: (701) 253-5553
Email: npwrc@usgs.gov

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2004

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Patterns of Variation in Clutch Sizes in a Guild of Temperate-Nesting Dabbling Ducks, Gary Krapu, Ronald Reynolds, Glen Sargeant, and Randy Renner

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Temporal Dynamics of Leafy sSpurge (Euphorbia esula) and Two Species of Flea Beetles (Aphthona spp.) Used as Biological Control Agents, Diane L. Larson and James B. Grace

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Is Climate Change Affecting Wolf Populations in the High Artic?, L. David Mech

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Unusual Behavior by Bison, Bison bison, Toward Elk, Cervus elaphus, and Wolves, Canis lupus, L. David Mech, Rick T. McIntyre, and Douglas W. Smith

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Record High Wolf, Canis lupus, Pack Density, L. David Mech and Shawn Tracy

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The Flora of the Cottonwood Lake Study Area, Stutsman County, North Dakota, David M. Mushet, Ned H. Euliss Jr., Stephen P. Lane, and Christopher M. Goldade

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Tracking of White-Tailed Deer Migration by Global Positioning System, Michael Nelson, L. David Mech, and Paul F. Frame

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Analyis of Predator Movement in Prairie Landscapes with Contrasting Grassland Composition, Michael L. Phillips, William R. Clark, Sarah M. Nusser, Marsha A. Sovada, and Raymond J. Greenwood

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Brown-headed Cowbirds in Grasslands: Their Habitats, Hosts, and Response to Management, Jill Shaffer, Christopher Goldade, Meghan Dinkins, Douglas Johnson, Lawrence Igl, and Betty Euliss

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Nesting Biology of Three Grassland Passerines in the Northern Tallgrass Prairie, Maiken Winter, Douglas H. Johnson, Jill A. Shaffer, and W. Daniel Svedarsky

2003

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Differences in Distribution of Modified Basins and Ducks Relative to Roadside Transects, Jane E. Austin, Glenn R. Guntenspergen, H. Thomas Sklebar, and T. K. Buhl

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Wolf Interactions with Non-prey, Warren B. Ballard, Ludwig N. Carbyn, and Douglas W. Smith

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American Avocet Nesting on Constructed Islands in North Dakota, Ann L. Dahl, Douglas H. Johnson, Lawrence D. Igl, Kathy L. Baer, Terry L. Shaffer, Michael A. Johnson, and Ronald E. Reynolds

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Effects of Ungulates and Prairie Dogs on Seed Banks and Vegetation in a North American Mixed-Grass Prairie, Jace T. Fahnestock, Diane L. Larson, Glenn E. Plumb, and James K. Detling

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Wolves and Humans, Steven H. Fritts, Robert O. Stephenson, Robert D. Hayes, and Luigi Boitani

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Wolf Population Dynamics, Todd K. Fuller, L. David Mech, and Jean Fitts Cochrane

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Effects of Sediment Load on Emergence of Aquatic Invertebrates and Plants from Wetland Soil Egg and Seed Banks, Robert A. Gleason, Ned H. Euliss Jr., Daniel E. Hubbard, and Walter G. Duffy

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Male Brown-headed Cowbird Attacks and Kills a Nestling, Lawrence D. Igl

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New Nesting Dates for Some Breeding Birds in North Dakota, Lawrence D. Igl and Harold A. Kantrud

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Pheasants of the World . . . Again, Brent E. Jamison

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Native Weeds and Exotic Plants: Relationships to Disturbance in Mixed-Grass Prairie, Diane L. Larson

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Incidence of Mink, Mustela vison, and River Otter, Lutra canadensis, in a Highly Urbanized Area, L. David Mech

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Conclusion, L. David Mech and Luigi Boitani

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Introduction, L. David Mech and Luigi Boitani

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References, L. David Mech and Luigi Boitani

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Wolf Social Ecology, L. David Mech and Luigi Boitani

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Wolf-Prey Relations, L. David Mech and Rolf O. Peterson

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Genetic Variation in the Midcontinental Population of Sandhill Cranes, Grus Canadensis, Jessica L. Petersen, Richard Bischof, Gary L. Krapu, and Allen L. Szalanski

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Genetic Variation in the Midcontinental Population of Sandhill Cranes, Grus Canadensis, Jessica L. Petersen, Richard Bischof, Gary L. Krapu, and Allen L. Szalanski

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Restoration of the Red Wolf, Michael K. Phillips, V. Gary Henry, and Brian T. Kelly

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Evaluation of Landscape Models for Wolverines in the Interier Northwest, United States of America, Mary M. Rowland, Michael J. Wisdom, Douglas H. Johnson, Barbara C. Wales, Jeffrey P. Copeland, and Frank B. Edelmann

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Sampling Designs for Carnivore Scent-Station Surveys, Glen A. Sargeant, Douglas H. Johnson, and William E. Berg

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Effects of Leafy Spurge Infestation on Grassland Birds, Daniel M. Scheiman, Eric K. Bollinger, and Douglas H. Johnson

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Brown-headed Cowbirds in Grasslands: Their Habitats, Hosts, and Response to Management, Jill A. Shaffer, Christopher M. Goldade, Meghan F. Dinkins, Douglas H. Johnson, Lawrence D. Igl, and Betty R. Euliss

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Historical and Recent Records and First Nest Records of Henslow's Sparrow in North Dakota, Jill A. Shaffer, Lawrence D. Igl, and Frédérick Vanhove

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Wolves: Behavior, Ecology, and Conservation: Photo Section II, Douglas W. Smith, L. David Mech, Isaac Babcock, and Melissa McCaw

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Wolves: Behavior, Ecology, and Conservation: Photo Section I, Douglas W. Smith, Rolf Peterson, L. David Mech, and Barron Crawford

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Guidelines for Finding Nests of Passerine Birds in Tallgrass Prairie, Maiken Winter, Shawn E. Hawks, Jill A. Shaffer, and Douglas H. Johnson

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Nest Parasitism on Constructed Islands in Northwestern North Dakota, Amy L. Zimmerman, Marsha A. Sovada, Tim K. Kessler, and Robert K. Murphy

2002

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Responses of Dabbling Ducks to Wetland Conditions in the Prairie Pothole Region, Jane Austin

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Assemblages of breeding birds as indicators of grassland condition, Sharon Freshman Browder, Douglas H. Johnson, and I. J. Ball

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Effects of Management Practices on Grassland Birds: McCown’s Longspur, Jill A. Dechant,

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Effects of Management Practices on Grassland Birds: Vesper Sparrow, Jill A. Dechant, Meghan F. Dinkins, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Upland Sandpiper, Jill A. Dechant, Meghan F. Dinkins, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Barry D. Parkin, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Baird’s Sparrow, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Melvin P. Nenneman, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Chestnut-Collared Longspur, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Melvin P. Nenneman, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Clay-Colored Sparrow, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Melvin P. Nenneman, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Grasshopper Sparrow, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Melvin P. Nenneman, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Mountain Plover, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Melvin P. Nenneman, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Northern Harrier, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Melvin P. Nenneman, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Loggerhead Shrike, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Melvin P. Nenneman, Amy L. Zimmerman, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Field Sparrow, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Barry D. Parkin, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Lark Sparrow, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Barry D. Parkin, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Sedge Wren, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Barry D. Parkin, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Willet, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Barry D. Parkin, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Burrowing Owl, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Paul A. Rabie, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Long-Billed Curlew, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Paul A. Rabie, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Nelson’s Sharp-Tailed Sparrow, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Paul A. Rabie, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Dickcissel, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Amy L. Zimmerman, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Lark Bunting, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Amy L. Zimmerman, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Le Conte’s Sparrow, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Amy L. Zimmerman, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Western Meadowlark, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Amy L. Zimmerman, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Ferruginous Hawk, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Amy L. Zimmerman, and Betty R. Euliss

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Using Aquatic Invertebrates to Delineate Seasonal and Temporary Wetlands in the Prairie Pothole Region of North America, Ned H. Euliss Jr., David M. Mushet, and Douglas H. Johnson

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First Records of Loosely Coiled Valve Snail in North Dakota, Bruce A. Hanson, Ned H. Euliss Jr., and David M. Mushet

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The Importance of Replication in Wildlife Research, Douglas H. Johnson

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The Role of Hypothesis Testing in Wildlife Science, Douglas H. Johnson

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Does Increasing Daylength Control Seasonal Changes in Clutch Sizes of Northern Pintails (Ana acuta)?, Gary Krapu, Glen Sergeant, and Alison Perkins

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Floristic Quality Assessment of One Natural and Three Restored Wetland Complexities in North Dakota, USA, David M. Mushet, Ned H. Euliss Jr., and Terry L. Shaffer

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Monitoring Black-Tailed Prairie Dog Colonies with High-Resolution Satellite Imagery, John G. Sidle, Douglas H. Johnson, Betty R. Euliss, and Malrcus Tooze

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Immobilization of Swift Foxes with Ketamine Hydrochloride-Xylazine Hydrochloride, Rebecca L. Telesco and Marsha A. Sovada

2001

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Suggestions for Presenting the Results of Data Analysis, David R. Anderson, William A. Link, Douglas H. Johnson, and Kenneth P. Burnham

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Duck Populations as Indicators of Landscape Condition in the Prairie Pothole Region, Jane Austin, Thomas K. Buhl, Glenn R. Guntenspergen, Wayne Norling, and H. Thomas Sklebar

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Effects of Management Practices on Grassland Birds: Swainson’s Hawk, Jill A. Dechant, Meghan F. Dinkins, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Marbled Godwit, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Melvin P. Nenneman, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Short-Eared Owl, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Melvin P. Nenneman, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Sprague’s Pipit, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Melvin P. Nenneman, and Betty R. Euliss

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Effects of Management Practices on Grassland Birds: Bobolink, Jill A. Dechant, Marriah L. Sondreal, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Amy L. Zimmerman, and Betty R. Euliss

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Use of Macroinvertebrates to Identify Cultivated Wetlands in the Prairie Pothole Region, Ned H. Euliss Jr., David M. Mushet, and Douglas H. Johnson

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On the Rarity of Food Provisioning by Male Dickcissels, Lawrence D. Igl and Louis B. Best

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Book Review: Research Techniques in Animal Ecology: Controversies and Consequences, Douglas H. Johnson

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Surveys of Calling Amphibians in North Dakota, Douglas H. Johnson and Ronald D. Batie

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Statistics for wildlifers: How much and what kind?, Douglas H. Johnson, Terry L. Shaffer, and Wesley E. Newton

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Area Requirements of Grassland Birds: A Regional Perspective, Douglas Johnson and Lawrence Igl

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Managing Minnesota's recovered wolves, L. David Mech

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WINTER SEVERITY AND WOLF PREDATION ON A FORMERLY WOLF-FREE ELK HERD, L. David Mech, Douglas W. Smith, Kerry M. Murphy, and Daniel R. MacNulty

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Prevalence of Giant Kidney Worm (Dioctophyma renale) in Wild Mink (Mustela vison) in Minnesota, L. David Mech and Shawn P. Tracy

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Mitochondrial Phylogeography, Subspecific Taxonomy, and Conservation Genetics of Sandhill Cranes (Grus Canadensis; Aves: Gruidae), Judith M. Rhymer, Matthew G. Fain, Jane E. Austin, Douglas H. Johnson, and Carey Krajewski

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Mitochondrial phylogeography, subspecific taxonomy, and conservation genetics of sandhill cranes (Grus canadensis; Aves: Gruidae), Judith M. Rhymer, Matthew G. Fain, Jane E. Austin, Douglas H. Johnson, and Carey Krajewski

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Evidence of American Woodcock Nesting in Southeastern South Dakota, Felicia Y. Sargeant and Glen A. Sargeant

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Estimated Areal Extent of Colonies of Black-Tailed Prairie Dogs in the Northern Great Plains, John Sidle, Douglas Johnson, and Betty Euliss

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Evaluation of the Bird Conservation Area Concept in the Northern Tallgrass Prairie: Annual Report 2001, Maiken Winter, Douglas H. Johnson, Jill A. Dechant, Therese M. Donovan, and W. Daniel Svedarsky

2000

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Effects of Roadside Transect Width on Waterfowl and Wetland Estimates, Jane E. Austin, H. Thomas Sklebar, Glenn R. Guntenspergen, and Thomas K. Buhl

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American Bittern Depredates Sora, Jane E. Austin and Michael V. Slivinski

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Spring-staging Ecology of Waterfowl in Nebraska — Then Versus Now, Robert R. Cox Jr.

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Waterfowl Research Priorities in the Northern Great Plains, Robert R. Cox Jr., Douglas H. Johnson, Michael A. Johnson, Ronald E. Kirby, Jeffrey W Nelson, and Ronald E. Reynolds

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Waterfowl research priorities in the northern Great Plains, Robert R. Cox, Douglas H. Johnson, Michael A. Johnson, Ronald E. Kirby, Jeffrey W. Nelson, and Ronald E. Reynolds

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Prolonged winter undernutrition and the interpretation of urinary allantoin:creatinine ratios in white-tailed deer, Glenn D. DelGiudice, Ken D. Kerr, L. David Mech, and Ulysses S. Seal

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ACCURACY AND PRECISION OF ESTIMATING AGE OF GRAY WOLVES BY TOOTH WEAR, Philip S. Gipson, Warren B. Ballard, Ronald M. Nowak, and L. David Mech

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A Surface-Associated Activity Trap for Capturing Water-Surface and Aquatic Invertebrates in Wetlands, Mark A. Hanson, Christiane C. Roy, Ned H. Euliss Jr., Kyle D. Zimmer, Michael R. Riggs, and Malcolm G. Butler