National Wildlife Research Center

NWRC Website

4101 LaPorte Avenue
Fort Collins, CO 80521
tel: (970) 266-6000 fax: (970) 266-6032


The U.S. Department of Agriculture's National Wildlife Research Center (NWRC) is the federal institution devoted to resolving problems caused by the interaction of wild animals and society. The Center applies scientific expertise to the development of practical methods to resolve these problems and to maintain the quality of the environments shared with wildlife.

This site contains publications of the NWRC or its staff. Material prepared by employees of the US Government in the course of their official duties cannot be copyrighted.

2005

LINES OF DEFENSE: Coping with Predators in the Rocky Mountain Region, Eric M. Gese, Sean P. Keenan, and Ann M. Kitchen

Avian Use of Commercial Sunflower and Grain Crops Compared to USDA Wildlife Conservation Sunflower Plots in North Dakota., Heath M. Hagy, George M. Linz, and William J. Bleier

Influence of the number of repellent-treated and untreated food or water containers on intake by the European starling, Arla G. Hile and Michael G. Tordoff

Aerial Mass Color - Marking of Blackbird Roosts, H. Jeffrey Homan and George M. Linz

West Nile Virus Infection In Farmed American Alligators (Alligator Mississippiensis) In Florida, Elliott R. Jacobson, Pamela E. Ginn, J. Mitchell Troutman, Lisa Farina, Lillian Stark, Kaci Klenk, Kristen L. Burkhalter, and Nicholas Komar

EVALUATION AND SIGNIFICANCE OF TETRACYCLINE STABILITY IN RABIES VACCINE BAITS , J. J. Johnston, T. M. Primus, T. Buettgenbach, C. A. Furcolow, M. J. Goodall, D. Slate, R. B. Chipman, J. L. Snow, and T. J. DeLiberto

Evaluation of Cocoa- and Coffee-Derived Methylxanthines as Toxicants for the Control of Pest Coyotes, John J. Johnston

Probabilistic model for estimating field mortality of target and non-target bird populations when simultaneously exposed to avicide bait, John J. Johnston, Melvin J. Holmes, Andy Hart, Dennis J. Kohler, and Randal S. Stahl

PROBABILISTIC RISK ASSESSMENT FOR SNAILS, SLUGS, AND ENDANGERED HONEYCREEPERS IN DIPHACINONE RODENTICIDE BAITED AREAS ON HAWAII, USA, John J. Johnston, William C. Pitt, Robert T. Sugihara, John D. Eisemann, Thomas M. Primus, Melvin J. Holmes, Joe Crocker, and Andy Hart

Parasitized and non-parasitized prey selectivity by an insectivorous bird, Gregory A. Jones, Kathryn E. Sieving, Michael L. Avery, and Robert L. Meagher

Hydrolyzed Casein Reduces Browsing of Trees and Shrubs by White-tailed Deer, Bruce A. Kimball, Dale L. Nolte, and Kelly B. Perry

Response Factor Considerations for the Quantitative Analysis of Western Redcedar (Thuja plicaia) Foliar Monoterpenes, Bruce A. Kimball, John H. Russell, Doreen L. Griffin, and John J. Johnston

Interactions Between the American White Pelican and Aquaculture in the Southeastern United States: an Overview, D. Tommy King

Recent Population Status of the American White Pelican: A Continental Perspective, D. Tommy King and Daniel W. Anderson

Genetic and spatial structure within a swift fox population, Ann M. Kitchen, Eric M. Gese, Lisette P. Waits, Seija M. Karki, and Edward R. Schauster

SPATIAL ECOLOGY OF SWIFT FOX SOCIAL GROUPS: FROM GROUP FORMATION TO MATE LOSS, Ann M. Kitchen, Erik M. Gese, Seija M. Karki, and Edward R. Schauster

Evaluation of Lorsban®-4E Aerially Sprayed on Sunflower Plots for Bird Repellency, George M. Linz, Anthony A. Slowik, Linda B. Penry, and Jeffrey Homan

WILDLIFE DISEASE RESEARCH AT THE APHIS NATIONAL WILDLIFE RESEARCH CENTER, R. G. McLean, L. Clark, M. R. Dunbar, K. C. Vercauteren, and T. A. Campbell

The Geographically Contiguous and Expanding Coastal Range of the Northern Curlytail Lizard (Leiocephalus carinatus armouri ) in Florida, Walter E. Meshaka Jr., Henry T. Smith, Richard M. Engeman, Christopher L. Dean, Jon A. Moore, and William E. O'Brien

How To Keep Beavers from Plugging Culverts, Dale L. Nolte, Dale H. Arner, John Paulson, Jeanne C. Jones, and Andy Trent

Husbandry of wild-caught greater sage-grouse, Paul Oesterle, Robert McLean, Michael Dunbar, and Larry Clark

Stability of the tranquilizer drug propionylpromazine hydrochloride in formulated products, Thomas M. Primus, Bruce A. Kimball, Jerome Hurley, John J. Johnston, Sherm Blom, and Peter J. Savarie

Blackbird Use and Damage of Wildlife Conservation Sunflower Plots, Jonathan M. Raetzman, George M. Linz, and William J. Bleier

Effects of radiotransmitters on fecal glucocorticoid metabolite levels of three-toed box turtles in captivity, Chadwick D. Rittenhouse, Joshua J. Millspaugh, Brian E. Washburn, and Michael W. Hubbard

The Impact of Disease in the American White Pelican in North America, Tonie Rocke, Kathryn Converse, Carol Meteyer, and Bob McLean

Serologic Evidence Of Exposure Of Wild Mammals To Flaviviruses In The Central And Eastern United States, J. Jeffrey Root, Jeffrey S. Hall, Robert G. Mclean, Nicole L. Marlenee, Barry J. Beaty, Justin Gansowski, and Larry Clark

SEROLOGIC EVIDENCE OF EXPOSURE OF WILD MAMMALS TO FLAVIVIRUSESIN THE CENTRAL AND EASTERN UNITED STATES , J. Jeffrey Root, Jeffrey S. Hall, Robert G. McLean, Nicole L. Marlenee, Barry J. Beaty, Justin Gansowski, and Larry Clark

GnRH Irnmunocontraception of Male Cats, Megan K. Ross, Julie K. Levy, Lowell A. Miller, Cynda Crawford, Jerry W. Ritchey, and Kathleen A. Fagerstone

Coyote movements and social structure along a cryptic population genetic subdivision, Benjamin N. Sacks, Brian R. Mitchell, Christen L. Williams, and Holly B. Ernest

WEST NILE VIRUS SEROSURVEILLANCE IN IOWA WHITE-TAILED DEER (1 999-2003), Julian Santatella, Robert McLean, Jeffrey S. Hall, James S. Gill, Richard A. Bowen, Harlo H. Hadow, and Larry Clark

From the Field: Field searches versus vaginal implant translocating elk calves, Nathan W. Seward, David S. Maehr, Jonathan W. Gassett, John J. Cox, and Jeffrey L. Larkin

SENSORY MODALITY USED BY COYOTES IN RESPONDING TO ANTIPREDATOR COMPOUNDS IN THE BLOOD OF TEXAS HORNED LIZARDS, Wade C. Sherbrooke and J. Russell Mason

Initial comparison: jaws, cables, and cage-traps to capture coyotes, John A. Shivik, Daniel J. Martin, Michael J. Pipas, John Turnan, and Thomas J. DeLiberto

ORAL RABIES VACCINATION—A PROGRESS REPORT, Dennis Slate, Charles Rupprecht, Mike Dunbar, and Robert McLean

Status of oral rabies vaccination in wild carnivores in the United States, Dennis Slate, Charles E. Rupprecht, Jane A. Rooney, Dennis Donovan, Donald H. Lein, and Richard B. Chipman

Historic and Current Status of the American White Pelican Breeding at Chase Lake National Wildlife Refuge, North Dakota, Marsha A. Sovada, D. Tommy King, Michael Erickson, and Cheryl Gray

Characterizing 3-Chloro-p-Toluidine Hydrochloride on Rough-Hulled Rice and Ethyl-Cellulose-Coated Rice Baits using High-Performance Liquid Chromatography, Randal S. Stahl, Carol Furcowlow, Jerome C. Hurley, and John J. Johnston

Slow migration of capsicum oleoresin in a sandy loam soil, Ray T. Sterner and Bruce A. Kimball

Capsicum oleoresin: development of an in-soil repellent for pocket gophers, Ray T. Sterner, Stephen A. Shumacke, Stanley E. Gaddis, and Jean B. Bourassa

From the Field: Implementing recovery of the red wolf— integrating research scientists and managers, Michael K. Stoskopf, Karen Beck, Bud B. Fazio, Todd K. Fuller, Eric M. Gese, Brian T. Kelly, Frederick F. Knowlton, Dennis L. Murray, William Waddell, and Lisette Waits

A test of targeted and passive capture of Australian elapids with a brown tree snake trap, Ian D. Temby and Richard M. Engeman

FENCE-LINE INTERACTIONS AMONG FARMED AND FREE-RANGING CERVIDS: PRELIMINARY RESULTS, Kurt C. VerCauteren, Justin W. Fischer, Robert Pooler, Michael J. Lavelle, and Greg Phillips

Efficacy of an animal-activated frightening device on urban elk and mule deer, Kurt C. VerCauteren, John A. Shivik, and Michael J. Lavelle

A comparison of three trap designs for capturing brown treesnakes on Guam, Daniel S. Vice, Richard M. Engeman, and Diane L. Vice

Effectiveness of a Motion-Activated Laser Hazing Systemfor Repelling Captive Canada Geese, Scott J. Werner and Larry Clark

Foraging Behavior and Monetary Impact of Wading Birds at Arkansas Baitfish Farms, Scott J. Werner, J. Brett Harrel, and David E. Wooten

Evaluation of Bird Shield as a blackbird repellent in ripening rice and sunflower fields, Scott J. Werner, H. Jeffrey Homan, Michael L. Avery, George M. Linz, Eric A. Tillman, Anthony A. Slowik, Robert J. Byrd, Thomas M. Primus, and Margaret J. Goodall

Proximal cues of pocket gopher burrow plugging behavior: Influence of light, burrow openings, and temperature, Scott J. Werner, Dale L. Nolte, and Frederick D. Provenza

Developing relative abundance techniques (RATs) for monitoring rodent populations, Desely A. Whisson, Richard M. Engeman, and Kellie Collins

Wildlife population monitoring: some practical considerations, Gary W. Witmer

PERCENTAGE OF WILDLIFE STRIKES REPORTED AND SPECIES IDENTIFIED UNDER A VOLUNTARY REPORTING SYSTEM, Sandra E. Wright and Richard A. Dolbeer

PRELIMINARY SEROLOGIC SURVEY OF SELECTED DISEASES AND MOVEMENTS OF FERAL SWINE IN TEXAS, A. Christy Wyckoff, Scott E. Henke, Tyler Campbell, David G. Hewitt, and Kurt C. Vercauteren

Comparison of Nicarbazin Absorption in Chickens, Mallards, and Canada Geese, C. A. Yoder, L. A. Miller, and K. S. Bynum

Comparison of Nicarbazin Absorption in Chickens, Mallards, and Canada Geese, C. A. Yoder, L. A. Miller, and K. S. Bynum

2004

2nd National Invasive Rodent Summit

Solutions Through Science: Protecting Sunflowers from Blackbirds

Assessing the efficacy of registered underground baiting products for mountain beaver (Aplodontia rufa) control , Wendy M. Arjo and Dale L. Nolte

The Effects of Lactation on Seedling Damage by Mountain Beaver, Wendy M. Arjo, Dale L. Nolte, Julie L. Harper, and Bruce A. Kimball

Assessing the Efficacy of Chlorophacinone for Mountain Beaver (Aplodontia rufa) Control, Wendy M. Arjo, Dale L. Nolte, Thomas M. Primus, and Dennis J. Kohler

Coyote and Wolf Habitat Use in Northwestern Montana, Wendy M. Arjo and Daniel H. Peltscher

Trends in North American Vulture Populations, Michael L. Avery

Livestock Depredations by Black Vultures and Golden Eagles, Michael L. Avery and J. L. Cummings

Avian perching deterrents on ultrasonic sensors at airport wind-shear alert systems, Michael L. Avery and Ann C. Genchi

Responses of Captive Fish Crows (Corvus ossifragus) to Acetaminophen Baits and Bait Stations for Brown Tree Snake (Boiga irregularis) Control on Guam, Michael L. Avery, Eric A. Tillman, and Peter J. Savarie

Double-Crested Comorants in Alabama, Scott C. Barras

Functional feeding responses of coyotes, Canis latrans, to fl uctuating prey abundance inthe Curlew Valley, Utah, 1977–1993 , Rebecca A. Bartel and Frederick F. Knowlton

What Can Birds Hear?, Robert C. Beason

EXPOSURE TIME OF ORAL RABIES VACCINE BAITS RELATIVE TOBAITING DENSITY AND RACCOON POPULATION DENSITY , Bradley F. Blackwell

EFFICACY OF AIRCRAFT LANDING LIGHTS IN STIMULATING AVOIDANCE BEHAVIOR IN BIRDS, Bradley F. Blackwell and Glen E. Burnhardt

EXPOSURE TIME OF ORAL RABIES VACCINE BAITS RELATIVE TO BAITING DENSITY AND RACCOON POPULATION DENSITY, Bradley F. Blackwell, Thomas W. Seamans, Randolph J. White, Zachary J. Patton, Rachel M. Bush, and Jonathan D. Cepek

Evaluating Population Management Scenarios: Crunching the Numbers before Going to the Field, Bradley F. Blackwell, Brian E. Washburn, and Michael J. Begier

Managing Wolf Depredation in the United States: Past, Present, and Future, Stewart W. Breck and Tom Meier

Feasibility of localized management to control white-tailed deer in forest regeneration areas, Tyler A. Campbell, Benjamin R. Laseter, W. Mark Ford, and Karl V. Miller

Diet Composition of Coyotes in the Cuyahoga Valley National Park, Ohio, Jonathan D. Cepak

Emergency Wildlife Management Response to Protect Evidence Associated with the Terrorist Attack on the World Trade Center, New York City, Richard B. Chipman, Richard A. Dollbeer, Kenneth J. Pruesser, Daniel P. Sullivan, Erin D. Losito, Allen L. Gosser, and Thomas W. Seamans

Effects of Aerial Lines on Red-winged Blackbird Nesting, William H. Clark, George M. Linz, and William J. Bleier

EFFECTS OF AERIAL LINES ON RED-WINGED BLACKBIRD NESTING SUCCESS, William H. Clark, George M. Linz, and William J. Bleier

Double-crested Cormorant Movements in Relation to Aquaculture in Eastern Mississippi and Western Alabama, Brian Dorr, D. Tommy King, Mark E. Tobin, J. Brent Harrel, and Patrick L. Smith

USDA Wildlife Services Image Collection: Creating an Online Database of Digital Images Using CONTENTdmTMSo Rware, Diana L. Dwyer

The e!ect of trap spacing on the capture of brown tree snakes on Guam, Richard M. Engeman and Michael A. Linnell

GOPHERUS BERLANDIERI (Texas Tortoise). MORTALITY., Richard M. Engeman, Michael J. Pipas, and Henry T. Smith

Monetary valuation of rare species and imperiled habitats as a basis for economically evaluating conservation approaches , Richard M. Engeman, Stephanie A. Shwiff, Henry T. Smith, and Bernice Constantin

RELATIONSHIP OF RACCOON ROAD-KILL DATA TO HIGH-DENSITY MARINE TURTLE NESTING, Richard M. Engeman, Henry T. Smith, and William J.B. Miller

RELATIONSHIP OF RACCOON ROAD-KILL DATA TO HIGH-DENSITY MARINE TURTLE NESTING, Richard M. Engeman, Henry T. Smith, and William J.B. Miller

Use of roadkill data to index and relate raccoon activity at a heavily predated, high-density marine turtle nesting beach, Richard M. Engeman, Henry T. Smith, and William J.B. Miller

The amount and economic cost of feral swine damage to the last remnant of a basin marsh system in Florida, Richard M. Engeman, Henry T. Smith, Robert Severson, Mary Ann Severson, Stephanie A. Shwiff, Bernice Constantin, and Daniel Griffin

Damage reduction estimates and benefit-cost ratios for feral swine control from the last remnant of a basin marsh system in Florida, Richard M. Engeman, Henry T. Smith, Robert Severson, Mary Ann Severson, John Woolard, Stephanie A. Shwiff, Bernice Constantin, and Daniel Griffin

Predacides for Canid Predation Management, K. A. Fagerstone, J. J. Johnston, and P. J. Savarie

Large-scale Climate and Land Cover Influences on Blackbird Populations in the Prairie Pothole Region of the United States and Canada, George M. Forcey, George M. Linz, and William J. Bleier

INFLUENCES OF LAND USE PATTERNS ON BLACKBIRD ABUNDANCE IN THE PRAIRIE POTHOLE REGION OF NORTH DAKOTA, Greg M. Forcey, George M. Linz, and William J. Bleier

Avian Use of Harvested Crop Fields During Spring Migration Through the Southern Drift Plains of North Dakota, Alegra M. Galle, George M. Linz, and William J. Bleier

Avian Use of Harvested Crop Fields During Spring Migration Through the Southern Drift Plains of North Dakota, Alegra M. Galle, George M. Linz, and William J. Bleier

AVIAN USE OF HARVESTED CROP FIELDS DURING SPRING MIGRATION TRROUGH NORTH DAKOTA, Alegra M. Galle, George M. Linz, and William J. Bleier

SEASONAL ACTIVITY AREAS OF COYOTES IN THE BEAR RIVER MOUNTAINS OF UTAH AND IDAHO, Glen F. Gantz and Frederick F. Knowlton

Survey and Census Techniques for Canids, E. M. Gese

Central and North America (Nearctic), E. M. Gese and M. Bekoff

Coyotes in Yellowstone National Park: the influence of dominance on foraging, territoriality, and fitness, Eric M. Gese

Serologic Survey for Canine Infectious Diseases among Sympatric Swift Foxes (Vulpes velox) and Coyotes (Canis latrans) in Southeastern Colorado, Eric M. Gese, Seija M. Karki, Mead L. Klavetter, Edward R. Schauster, and Ann M. Kitchen

Evaluation of a deer-activated bioacoustic frightening device for reducing deer damage in cornfields, Jason M. Gildorf, Scott E. Hygnstrom, Kurt C. VerCauteren, Greg M. Clements, Erin E. Blankenship, and Richard M. Engeman

Propane exploders and Electronic Guards were ineffective at reducing deer damage in cornfields, Jason M. Gilsdorf, Scott E. Hygnstrom, Kurt C. VerCauteren, Erin E. Blankenship, and Richard M. Engeman