Erin E. Grabarczyk Portrait

Erin E. Grabarczyk

Assistant Professor

  • PhD, Biological Sciences
    Western Michigan University, Kalamazoo,MI
  • MSc, Biological Sciences
    Eastern Kentucky University, Richmond, KY
  • BA, Zoology
    Miami University, Oxford, OH
Teaching Interests
  • Conservation Biology
  • Ecology and Evolution
  • Ornithology
  • Field Methods in Ornithology
  • Science Writing and Communication


Research Interests

I am broadly interested in how animals respond to human-generated environmental change. My research incorporates bioacoustics, GIS, and molecular ecology to explore behaviors such as communication, spatial distributions, and foraging.

Selected Publications

  1. Myers, E. B., Tillman, P. G., Cottrell, T. E., & Grabarczyk, E. E. (2025). Crimson clover improves biological control of Halyomorpha halys (Stål) by native stink bug egg parasitoids in pecan orchards. BioControl, 1-9.
  2. Grabarczyk EE, Tillman PG, Querejeta M, Schmidt JM. Honey, what’s for dinner? Dietary overlap and size dimorphism between female and male Joro spiders (Trichonephila clavata). 2025. Integrative Zoology. doi:10.1111/1749-4877.12947.
  3. Araya-Salas M, Grabarczyk EE, Quiroz-Oliva M, García-Rodríguez A, & Rico-Guevara A. 2025. Quantifying degradation in animal acoustic signals with the R package baRulho. Methods in Ecology and Evolution. doi:10.1111/2041-210X.14481.
  4. Schmidt JM, Russell K, Bowers C, Coffin A, Toews M, Thomson M, Grabarczyk EE, Tillman PG, Olsen D. 2024. High redundancy and infrequent predation on key pests in cotton agroecosystem. Agriculture, Ecosystems, & Environment. doi:10.1016/j.agee.2024.109164.
  5. Grabarczyk EE, Querejeta M, Tillman PG, Wallace RD, Barnes BF, Meinecke CD, Villari C, Gandhi K, LaForest J, Elliot M, Schmidt JM. 2023. DNA metabarcoding analysis of three material types reveal Joro spider (Trichonephila clavata) trophic interactions and web capture. Frontiers in Ecology and Evolution 11:1177446. doi:10.3380/fevo.20231177446.
  6. Grabarczyk EE, Cottrell TE, Schmidt JM, Tillman PG. Low incidence of avian predation on the brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae), in southeastern orchard agroecosystems. Insects. doi:10.3390/insects14070595.
  7. Grabarczyk EE, Cottrell TE & Tillman PG. 2022. Spatiotemporal distribution of brown marmorated stink bugs, Halyomorpha halys (Stål) in a southeastern orchard landscape. Environmental Entomology. doi:10.1093/ee/nvac030.
  8. Grabarczyk EE, Gill SA, Vonhof MJ, Alabady M, Wang, Z, & Schmidt JM. 2022. Diet composition and diversity does not explain fewer, smaller urban nestlings. PLoS ONE.. doi:10.1371/journal.pone.0264381.

Full List Of Publications