Ernest B. Fish1, Erin A. Atkinson2, Edward J. Allen3, and Matthew A. Crawford1. (1) Natural Resources Management, Texas Tech University, Mail Stop 2125, Texas Tech University, Lubbock, TX 79409, (2) Halff and Associates, 4000 Fossil Creek Blvd., Fort Worth, TX 76137, (3) Mathematics and Statistics, Texas Tech University, Mail Stop 1042, Texas Tech University, Lubbock, TX 79409