1. Department of Natural Resource Management, Edgar S. Mcfadden Biostress LabSouth Dakota State University Brookings SD 57007 U.S.A.
2. Department of Veterinary Microbiology and PathologyWashington State University Pullman WA 99164 U.S.A.
3. South Dakota Game, Fish and Parks, 4130 Adventure Trail Rapid City SD 57702 U.S.A.
4. South Dakota Game, Fish and Parks, 13329 US Highway 16A Custer SD 57730 U.S.A.
5. Department of Applied SciencesChadron State College, Burkhiser Complex Chadron NE 69337 U.S.A.