Welcome to the Department of Biology

Department of Biology at Illinois State University
Department of Biology

For information about our faculty visit the "Research and Facilities" page (click here or the above tab). Choose a topic which will give you the list of faculty and links to their website. For staff contacts see "About Us" (click here or the above tab).

Dr. Benjamin Sadd

Assistant Professor of Infectious Disease Ecology
  • BSC 201.Sec 001 Ecology
  • BSC 299.Sec 008 Independent Honor Study
  • BSC 499.Sec 008 Independent Research For The Masters Thesis
  • BSC 499.Sec 108 Independent Research For The Masters Thesis
  • BSC 311.Sec 099 Rain Forest Ecology
  • BSC 290.Sec 043 Research In Biological Sciences
  • BSC 599.Sec 010 Research In The Biological Sciences
  • Ecology, Evolution, Infectious Disease, Ecological immunology, Entomology
  • Ecology and evolution of host-parasite relationships, Host immune defence evolution, Ecological immunology
  • Ph D Natural Sciences - 2008
  • Swiss Federal Institute of Technology (ETH)
  • Zurich, Switzerland
  • Dissertation/Thesis topic: The ecology of immune priming in a social context
  • MS Zoology - 2004
  • University of Sheffield
  • United Kingdom
  • Dissertation/Thesis topic: Autoreactivity in the insect immune system
  • Palmer-Young, EC, Sadd, BM, Stevenson, PC, Irwin, RE & Adler, LS (2016) Bumble bee parasite strains vary in resistance to phytochemicals. Scientific Reports, 6
  • Palmer‐Young, EC, Sadd, BM & Adler, LS (2016) Evolution of resistance to single and combined floral phytochemicals by a bumble bee parasite. Journal of Evolutionary Biology
  • Fauser, A, Sandrock, C, Neumann, P & Sadd, BM (accepted) Neonicotinoids override a parasite exposure impact on hibernation success of a key bumblebee pollinator. Ecological Entomology
  • Barribeau, SM, Schmid-Hempel, P & Sadd, BM (2016) Royal decree: gene expression in trans-generationally immune primed bumblebee workers mimics a primary immune response. PLOS ONE 11: e0159635
  • Palackdharry, S, Sadd, BM, Vogel, LA & Bowden, RM (accepted) The effect of environmental temperature on reptilian peripheral blood B cell functions. Hormones and Behavior
  • Barribeau, SM, Sadd, BM, du Plessis, L, Brown, MJF, Buechel, SD, Cappelle, K, et al. (2015) A depauperate immune repe​rtoire precedes evolution of sociality in bees. Genome Biology​, 16, 83
  • Rahnamaeian, M, Cytrynska, M, Zdybicka-Barabas, A, Dobslaff, K, Wiesner, J, Twyman, R, Züchner, T, Sadd, BM, Regoes, R, Schmid-Hempel, P & Vilcinskas, A (2015) Insect antimicrobial peptides show potentiating functional interactions against Gram-negative bacteria. Proceedings of the Royal Society B: Biological Sciences, 282, 201550293
  • Sadd, BM, Barribeau SM, Bloch G, de Graaf DC, Dearden P, Elsik CG, et al. (2015) The genomes of two key bumblebee species with primitive eusocial organization. Genome Biology, 16, 76
  • Duffield, K.R., Hunt, J., Rapkin, J., Sadd, B.M. and S. K. Sakaluk. 2015. Terminal investment in the gustatory appeal of nuptial food gifts in crickets. Journal of Evolutionary Biology 28: 1872-1881.
  • Barribeau, SM, Sadd, BM, du Plessis, L & Schmid-Hempel, P (2014) Gene expression differences underlying genotype-by-genotype specificity in a host-parasite system. Proceedings of the National Academy of Sciences USA, 111, 3496-3501
  • *Fauser-Misslin, A, *Sadd, BM, Neumann, P & Sandrock, C (2014) Influence of combined pesticide and parasite exposure on bumblebee colony traits in the laboratory. Journal of Applied Ecology, 51, 450-459 *Joint first authors
  • Sadd, BM & Barribeau, SM (2013) Heterogeneity in infection outcome: lessons from a bumblebee-trypanosome system. Parasite Immunology, 35, 339-349
  • Antonovics, J, Boots, M, Ebert, D, Koskella, B, Poss, M & Sadd, BM (2012) The origin of specificity by means of natural selection: evolved and non-host resistance in host-pathogen interactions. Evolution, 67, 1-9
  • Cisarovsky, G, Schmid-Hempel, P & Sadd, BM (2012) Robustness of the outcome of adult bumblebee infection with a trypanosome parasite after varied parasite exposures during larval development. Journal of Evolutionary Biology, 25, 1053-1059
  • Sadd, BM (2011) Food-environment mediates specific interactions between a bumblebee and its trypanosome parasite. Evolution, 65, 2995-3001
  • Sadd, BM & Schmid-Hempel, P (2009) A distinct infection cost associated with trans-generational priming of antibacterial immunity in bumblebees. Biology Letters, 5, 798-801
  • Sadd, BM & Schmid-Hempel P (2009) Principles of Ecological Immunology. Evolutionary Applications, 2, 113-121
  • Otti, O & Sadd, BM (2008) Parental guidance? Trans-generational influences on offspring life-history in mosquitoes. Trends in Parasitology, 24,197-199
  • Sadd, BM & Schmid-Hempel, P (2007) Facultative but persistent trans-generational immunity via the mother's eggs in bumblebees. Current Biology, 17, R1046-1047
  • Sadd, BM & Siva-Jothy, MT (2006) Self-harm caused by an insect’s innate immunity. Proceedings of the Royal Society B: Biological Sciences, 273, 2571-2574
  • Sadd, BM & Schmid-Hempel, P (2006) Insect immunity shows specificity in protection on secondary pathogen exposure. Current Biology, 16, 1206-1210
  • Sadd, BM et al. (2005) Trans-generational immune priming in a social insect. Biology Letters, 1, 386-388