Catherine (Katie) Haase, M.S., Ph.D.
​Assistant Professor
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Dr. Haase received her B.S. in Wildlife from Unity College in Maine, her M.S. in Conservation Biology at the State University of New York College of Environmental Science and Forestry, and her Ph.D. in Interdisciplinary Ecology from the University of Florida (GO GATORS!). Dr. Haase did her post-doctoral research at Montana State University studying the energetics of white-nose syndrome in western bat species. Outside of research and teaching, Dr. Haase enjoys hiking, kayaking, ice cream, R code, and awkward mammals.
Sarah Zirkle, M.S. Student

Sarah joins the lab after receiving her B.S. degree in Wildlife Science from Tennessee Technological University. Sarah is interested in the spatial ecology and population dynamics of Perimyotis subflavus (tri-colored bat), a species recently petitioned for Endangered Species Act protection. Her research will focus on forest community roost structure and community composition, summer home range, and impacts of white-nose syndrome on this species.
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Sarah Krueger, M.S. Student

​Sarah received her B.S. in Wildlife and Fisheries with minors in Forestry and International Agriculture and Natural Resources from the University of Tennessee, Knoxville. After graduating, she had the opportunity to work for the Georgia Department of Natural Resources conducting cave and culvert surveys. This opportunity, coupled with previous work experience in bat acoustics, has lead her to pursue a graduate research project investigating community distribution, habitat use, and impacts of white-nose syndrome on bats on Fort Campbell Army Base. 

Trevor Walker, M.S. Student

Trevor received his B.S. in Fisheries, Wildlife, and Conservation Biology from North Carolina State University and an A.S. in Fish and Wildlife Management Technology from Haywood Community College. Trevor pursued his degrees because he has always loved being outside and spending time hiking, hunting, and fishing. Then in his sophomore year he began working with bats! Trevor is interested in studying how insect population/diversity across the landscape affects the presence of bat species on Fort Campbell Army Base. He will also be utilizing his vast experience in tracking with radio telemetry to help out the team!

Jonathan Crockarell, Undergraduate Student

Jonathan is an undergraduate student in the Department of Biology. Jonathan received an Undergraduate Research Enrichment Fund from APSU to study the impacts of military operations on the Fort Campbell bat community using acoustic sensors. 
John Hansen, Undergraduate Student
John is an undergraduate student in the Department of Biology and works for Dr. Woltmann's lab. John received an Undergraduate Enrichment Fund from APSU to study the impacts of supplemental feeding of feral cats on disease transmission on and around APSU campus. He is co-mentored by Dr. Mollie Cashner and Dr. Stef Woltmann.
Interested in becoming a part of our lab? Please see the Prospective Students page for more information.