Dr. Benjamin Sadd
Associate Professor of Infectious Disease Ecology
School of Biological Sciences
Office
Felmley Hall Annex FSA 337
Office Phone
Email
- About
- Education
- Research
Current Courses
301Entomology
495Graduate Research In Biological Sciences
299Independent Honor Study
499Independent Research For The Master's Thesis
499Independent Research For The Master's Thesis Last Term
311Rain Forest Ecology
599Research In The Biological Sciences
499Independent Research For The Master's Thesis
Teaching Interests & Areas
Ecology,
Evolution,
Infectious Disease,
Ecological immunology,
Entomology
Research Interests & Areas
Host-parasite evolutionary ecology; host immune defence evolution; host-beneficial microbe interactions; ecological immunology; pollinator health
Ph D Natural Sciences
Swiss Federal Institute of Technology (ETH)
Zurich, Switzerland
MS Zoology
University of Sheffield
United Kingdom
Journal Article
Calhoun, AC, Harrod, AE, Bassingthwaite, TA & Sadd, BM (2021) Testing the multiple stressor hypothesis: Chlorothalonil exposure alters transmission potential of a bumblebee pathogen but not individual host health. Proceedings of the Royal Society B: Biological Sciences, 288, 20202922.
Duffield, KR, Hunt, J, Sadd, BM, Sakaluk, SK, Oppert, B, Rosario-Cora, K, Behle, R & Ramirez, JL (2021) Active and covert infections of cricket iridovirus and Acheta domesticus densovirus in reared Gryllodes sigillatus crickets. Frontiers in Microbiology, 12, 780796.
Hampton, KJ, Duffield, KR, Hunt, J, Sakaluk, SK & Sadd, BM (2021) Male and female genotype and a genotype-by-genotype interaction mediate the effects of mating on cellular but not humoral immunity in female decorated crickets. Heredity, 126, 477-490.
Sun, C, Huang, J, Wang, Y, …, Sadd, BM, Hahn, M, Schaack, S, Barribeau, SM, Williams, PH, Waterhouse, RM, Mueller, RL (2021) Genus-wide characterization of bumblebee genomes provides insights into their evolution and variation in ecological and behavioral traits. Molecular Biology and Evolution, 38, 486-501.
Cameron, SA & Sadd, BM (2020) Global trends in bumble bee health. Annual Review of Entomology, 65, 209-232.
Duffield, KR, Hampton, KJ, Houslay, TM, Rapkin, J, Hunt, J, Sadd, BM & Sakaluk, SK (2020) Macronutrient intake and simulated infection threat independently affect life history traits of male decorated crickets. Ecology and Evolution. 10, 11766-11778.
Duffield, KR, Hampton, KJ, Houslay, TM, Hunt, J, Sadd, BM & Sakaluk, SK (2019) Inbreeding alters context-dependent reproductive effort and immunity in male crickets. Journal of Evolutionary Biology, 32, 731-741.
Sakaluk, SK, Duffield, KR, Rapkin, J, Sadd, BM & Hunt, J (2019) The troublesome gift: the spermatophylax as a purveyor of sexual conflict and coercion in crickets. Advances in the Study of Behavior, 51, 1-30.
Sakaluk, SK, Oldzej, J, Hodges, C, Harper, J, Rines, I, Hampton, KJ, Duffield, KR, Hunt, J & Sadd, BM (2019) Effects of inbreeding on life history traits and sexual competency in decorated crickets. Animal Behaviour, 155, 241-248.
Sauers, LA and Sadd, BM (2019) An interaction between host and microbe genotypes determines colonization success of a key bumble bee gut microbiota member. Evolution, 73, 2333-2342.
Tobin, KB, Calhoun, AC, Hallahan, MF, Martinez, A & Sadd, BM (2019) Infection outcomes are robust to thermal variability in a bumble bee host-parasite system. Integrative and Comparative Biology, 59, 1103-1113.
Wang, L, Wu, J, Li, K, Sadd, BM, Guo, Y, Zhuang, DH, Zhang, Z, Chen, YP, Evans, JD, Guo, J, Zhang, Z & Li, J (2019) Dynamic changes of gut microbial communities of bumble bee queens through important life stages. mSystems, 4, e00631-19.
Carter, A, Sadd, BM, Tuberville, T, Paitz, R & Bowden, RM (2018) Short heatwaves during fluctuating incubation regimes produce females under temperature-dependent sex determination with implications for sex ratios in nature. Scientific Reports, 8, 3.
Duffield, KR, Hampton, KJ, Houslay,TM, Hunt, J, Rapkin, J, Sakaluk, SK & Sadd, BM (2018) Age-dependent variation in the terminal investment threshold in male crickets. Evolution, 72, 578-589.
Palmer-Young, EC, Calhoun, A, Mirzayeva, A & Sadd, BM (2018) Effects of the floral phytochemical eugenol on parasite evolution and bumble bee infection and preference. Scientific Reports, 8, 2074.
Roth, O, Beemelmanns, A, Barribeau, SM & Sadd, BM (2018) Recent advances in vertebrate and invertebrate trans-generational immunity in the light of ecology and evolution. Heredity, 121, 225-238.
Rothchild, K, Adler, LS, Irwin, RE, Sadd, BM, Stevenson, PC, Palmer Young, EC (2018) Effects of short-term exposure to naturally occurring thymol concentrations on transmission of a bumble bee parasite. Ecological Entomology, 43, 567-577.
Zhao, X, Su, L, Schaack, S, Sadd, BM & Sun, C. (2018) Tandem repeats contribute to coding sequence variation in bumblebees (Hymenoptera: Apidae). Genome Biology and Evolution, 10, 3176-3187.
Fauser, A, Sandrock, C, Neumann, P & Sadd, BM (2017) Neonicotinoids override a parasite exposure impact on hibernation success of a key bumblebee pollinator. Ecological Entomology, 42, 306-314
Palackdharry, S, Sadd, BM, Vogel, LA & Bowden, RM (2017) The effect of environmental temperature on reptilian peripheral blood B cell functions. Hormones and Behavior, 88, 87-94
Palmer-Young, EC, Sadd, BM, Irwin, RE & Adler, LS (2017) Synergistic effects of floral phytochemicals against a bumble bee parasite. Ecology and Evolution, 7, 1836-1849
Palmer‐Young, EC, Sadd, BM & Adler, LS (2017) Evolution of resistance to single and combined floral phytochemicals by a bumble bee parasite. Journal of Evolutionary Biology, 30, 300-312
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
Palmer-Young, EC, Sadd, BM, Stevenson, PC, Irwin, RE & Adler, LS (2016) Bumble bee parasite strains vary in resistance to phytochemicals. Scientific Reports, 6
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
Barribeau, SM, Sadd, BM, du Plessis, L, Brown, MJF, Buechel, SD, Cappelle, K, et al. (2015) A depauperate immune repertoire precedes evolution of sociality in bees. Genome Biology, 16, 83
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.
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
*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
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
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) Principles of Ecological Immunology. Evolutionary Applications, 2, 113-121
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
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 (2006) Insect immunity shows specificity in protection on secondary pathogen exposure. Current Biology, 16, 1206-1210
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 et al. (2005) Trans-generational immune priming in a social insect. Biology Letters, 1, 386-388
2017-06-08T13:05:11.458-05:00
2017