The University of Tennessee - Knoxville is one of the most popular schools in the United States for getting a doctor's degree in ecology. Located in the city of Knoxville, UT Knoxville is a public university with a very large student population. This isn't the only ranking where the school placed. It's also #1 in quality for doctor's degrees in ecology in Tennessee. More information about a doctorate in ecology from The University of Tennessee - Knoxville