Research
Research
My research interests broadly include pollination ecology, pollinator health and nutrition, and agroecology. My dissertation work so far has adapted the "mesotunnel" pest exclusion system into an enclosure system to manipulate bumble bees' floral diets in a field-realistic setting. I am investigating questions of floral diet diversity versus floral species identity for bee health, facilitation versus competition for crop pollination services in diversified agroecosystems, and multifunctionality and practicality of on-farm pollinator conservation methods. I am also developing "colony health indices" as an analytical method to synthesize and summarize the overall health status of bumble bees at the colony-level (see publication in Journal of Pollination Ecology).
In preparation
Lexi Gauger and David Gonthier. Effectiveness of on-farm conservation methods for pollinator support and pollination services: a review. In preparation.
Lexi Gauger, Kathleen Fiske Pulliam, Yuuki Cherian, and David Gonthier. Floral resource diversification improves bumble bee colony health in cucurbit agroecosystems. In preparation.
In press
Kathleen Fiske, Robert Brockman, Chelsea Avery, Lexi Gauger, Mark Williams, Ricardo Bessin, and David Gonthier. Balancing row cover pest and pollination management in organic cucurbit production. 2025. Renewable Agriculture and Food Systems, 41:e1. doi.org/10.1017/S1742170525100203
Lexi Gauger, Kathleen Fiske Pulliam, Yuuki Cherian, Mateo Garcia, Benjamin Morrison, and David Gonthier. Bumble bee colony health is diminished in a mesotunnel enclosure planted with a cucurbit monoculture crop. 2025. Journal of Pollination Ecology, https://doi.org/10.26786/1920-7603(2025)859
Ryan Kuesel, Chelsea Avery, Sarah Jones, Alexis Gauger, Delia Scott, and David Gonthier. Exclusion barriers reduce Drosophila suzukii infestation and improve fall-bearing red raspberry yields. 2023. Journal of Economic Entomology, 116(5): 1727-1736. doi.org/10.1093/jee/toad151
Gonzalez, J., Gonthier, D., Pethybridge, S., Bessin, R., Nair, A., Zhang, W., Cheng, N., Fiske, K., Gauger, A., Damann, K., Murphy, S., Badilla, S., Mphande, K., and Gleason, M. 2023. Mesotunnels for organic management of cucurbit pests and diseases: tips for growers. NCPA 038, North Central IPM Center. 8 pp.
Kenton Sena, Lexi Gauger, Trinity Johnson, Felicity Shirkey, William Caldbeck, Jansen Hammock, Ashley Kim, Bella Mazza, Isabelle Pethtel, and Wendy Leuenberger. Honeysuckle (Lonicera maackii) presence is associated with reduced diversity and richness of flowering spring flora in central Kentucky. 2021. Natural Areas Journal, 41(4): 249-257. doi.org/10.3375/20-41
International Conference on Pollinator Biology, Bozeman, MT, June 2026
Poster presentation: Bumble bee colony health and pollen diet composition depend on floral diversity in cucurbit field enclosures
Ohio Valley Entomological Association Conference, Burlington, KY, October 2025
Contributed talk: Novel mesocosm system reveals relationships between floral diversification, bee colony health, and pollination services
Ecological Society of America Conference, Baltimore, MD, August 2025
Contributed talk: Novel mesocosm system reveals relationships between floral diversification, bee colony health, and pollination services
Entomological Society of America Conference, Phoenix, AZ, November 2024
Invited talk: Using a novel mesocosm system to reveal effects of floral diversification on bumble bee colony-level health
University of Kentucky Entomology Department Seminar, October 2023
Proposal seminar: Does floral diversification impact bee colony health and services?
Tomas Sanchez-Villalobos poster presentation, December 2024
Tomas, an undergraduate student whom I mentored, created a poster titled "Comparing analysis methods and pollen foraging in bumble bees" based on his independent research project, and presented it at our lab meeting.
People's Summit on Food Systems and Urban Agriculture, Louisville, KY, September 2024
Poster presentation: Floral resource diversity improves bee colony health without affecting crop yield
University of Kentucky Entomology Department Retreat, August 2024
Poster presentation: Floral resource diversity improves bee colony health without affecting crop yield
Marbleseed Organic Conference, La Crosse, WI, February 2023
Poster presentation: Foraging environment and floral diversity affects reproductive success in commercial B. impatiens colonies
University of Kentucky Entomology Department Retreat, August 2022
Poster presentation: Foraging environment and floral diversity affects reproductive success in commercial B. impatiens colonies
USDA-NIFA Postdoctoral Fellowship, April 2026
"Bumble bee nutrition, colony health, and pollination outcomes in cucurbit agroecosystems ," $244,000 (in review)
Tracy Farmer Scholars Program, March 2026
University of Kentucky student fellowship, "Advancing understanding of bumble bee colony health in diversified agroecosystems," $6,000 (in review)
Southern SARE Graduate Student Grant, May 2025
"Applying Flowering Cover Crop Furrows for Pollinator Health and Weed Suppression in Cucurbit Agroecosystems," $22,000
USDA-NIFA Predoctoral Fellowship, November 2024
"Floral resource diversification affects pollinator health and crop yield in cucurbit agroecosystems," $180,000
The Food Connection Student Opportunity Grant, May 2024
"Affirming mutual goals of pollinator health and pollination services in sustainable agroecosystems," $7,500 (fully funded)
National Science Foundation Graduate Research Fellowship Program, March 2023
"Resource diversity creates trade-offs between B. impatiens colony health and pollination ecosystems services," Honorable mention
University of Kentucky Singletary Graduate Fellowship, May 2022
$20,000 + tuition and benefits (fully funded)
Academic peer review for Journal of Environmental Entomology, February 2026
Faculty search committee student representative, Extension Field Crops Entomologist position, University of Kentucky, 2026
Member, Entomological Society of America
Member, Ecological Society of America
Associate Member, Sigma Xi Scientific Research Honor Society
All images and content on this site belong to Lexi Gauger except where otherwise noted. All opinions expressed are personal and do not represent the University of Kentucky.