Comparative survey of the Megachilidae of Lake Itasca, MN, with data from 1938.
- B.S. Applied Plant Science with minor in Entomology, University of Minnesota 2008.
- Masters degree, 2013, University of Minnesota, Advisors: M. Spivak, R. Holzenthal. Survey of Megachilidae at Lake Itasca.
Joel Gardner received his Master’s degree in entomology from the University of Minnesota in 2013, where his advisors were Dr. Marla Spivak, and Dr. R. Holzenthal. Joel also holds a B.S. in Applied Plant Science with a minor in Entomology from the University of Minnesota, 2008.