Dr. Benjamin Sadd
Acting Director & Professor of Infectious Disease Ecology
Office
FSA Felmley Hall Of Science Annex 337
Office Phone
Email
- About
- Education
- Selected Research
Current Courses
BSC 495.002 Graduate Research In Biological Sciences
BSC 499.020 Independent Research For The Master's Thesis
BSC 400.020 Independent Study
BSC 599.024 Research In The Biological Sciences
BSC 599.224 Research In The Biological Sciences Final Term
BSC 196.001 Biological Diversity
BSC 495.002 Graduate Research In Biological Sciences
BSC 299.001 Independent Honor Study
BSC 499.024 Independent Research For The Master's Thesis
BSC 287.002 Independent Study
BSC 400.001 Independent Study
BSC 290.043 Research In Biological Sciences
BSC 599.024 Research In The Biological Sciences
Teaching Interests & Areas
Ecology,
Evolution,
Infectious disease,
Ecological immunology,
Entomology,
Pollinator health,
Rainforest ecology
Research Interests & Areas
Host-parasite evolutionary ecology; host immune defense evolution; host-beneficial microbe interactions; ecological immunology; pollinator health; life-history investment
Ph D Natural Sciences
Swiss Federal Institute of Technology (ETH)
Zurich, Switzerland
MS Zoology
University of Sheffield
United Kingdom
Grants and Contracts
MRI: Acquisition of a high speed cell sorter for interdisciplinary student research and training in Biological Sciences
Laura Anne Vogel, Rachel Michelle Bowden, Nathan T. Mortimer, Ben Sadd.
National Science Foundation. September 1 2017 - August 31 2021
Journal Article
Genomic patterns of strain-specific genetic structure, linkage, and selection across fall armyworm populations
Ashley Tessnow, Rodney Nagoshi, Robert Meagher, Todd Gilligan, Ben Sadd, Yves Carrière, Holly Davis, Shelby Fleischer, Kelly Richers, John Palumbo, Patrick Porter, Jose Verle Rodrigues, Gregory Sword.
BMC Genomics, 26, 16, (2025)
Active and covert infections of cricket iridovirus and Acheta domesticus densovirus in reared Gryllodes sigillatus crickets
Kristin R Duffield, John Hunt, Ben Sadd, Scott K Sakaluk, Brenda Oppert, Karyna Rosario-Cora, Robert W Behle, Jose L Ramirez.
Frontiers in Microbiology, 12, 780796, (2021)
Genus-wide characterization of bumblebee genomes provides insights into their evolution and variation in ecological and behavioral traits
Cheng Sun, J Huang, Y Wang, Ben Sadd, M Hahn, Sarah Schaack, Seth Barribeau, Paul Williams, Robert Waterhouse, Rachel Mueller.
Molecular Biology and Evolution, (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
Kylie J Hampton, Kristin R Duffield, John Hunt, Scott K Sakaluk, Ben Sadd.
Heredity, 126, 477-490, (2021)
Testing the multiple stressor hypothesis: Chlorothalonil exposure alters transmission potential of a bumblebee pathogen but not individual host health
Austin C Calhoun, Audrey E Harrod, Toby A Bassingthwaite, Ben Sadd.
Proceedings of the Royal Society B: Biological Sciences, 288, 20202922, (2021)
Global trends in bumble bee health
Sydney A Cameron, Ben Sadd.
Annual Review of Entomology, 65, 209-232, (2020)
Macronutrient intake and simulated infection threat independently affect life history traits of male decorated crickets
Kristin R Duffield, Kylie J Hampton, Thomas M Houslay, James Rapkin, John Hunt, Ben Sadd, Scott K Sakaluk.
Ecology and Evolution, 10, 11766-11778, (2020)
An interaction between host and microbe genotypes determines colonization success of a key bumble bee gut microbiota member
Logan A Sauers, Ben Sadd.
Evolution, 73, 2333-2342, (2019)
Dynamic Changes of Gut Microbial Communities of Bumble Bee Queens through Important Life Stages
Liuhao Wang, Jie Wu, Kai Li, Ben Sadd, Yulong Guo, Daohua Zhuang, Zhengyi Zhang, Yanping Chen, Jay D Evans, Jun Guo, Zhigang Zhang, Jilian Li.
mSystems, 4, e00631-19, (2019)
Effects of inbreeding on life-history traits and sexual competency in decorated crickets
Scott K Sakaluk, Jeannine Oldzej, Christine J Poppe, Jenny L Harper, Ian G Rines, Kylie J Hampton, Kristin R Duffield, John Hunt, Ben Sadd.
Animal Behaviour, 155, 241-248, (2019)
Inbreeding alters context-dependent reproductive effort and immunity in male crickets
Kristin R Duffield, Kylie J Hampton, Thomas M Houslay, John Hunt, Ben Sadd, Scott K Sakaluk.
Journal of Evolutionary Biology, 32, 731-741, (2019)
Infection outcomes are robust to thermal variability in a bumble bee host-parasite system
Kerrigan B Tobin, Austin C Calhoun, Madeline F Hallahan, Abraham Martinez, Ben Sadd.
Integrative and Comparative Biology, 59, 1103-1113, (2019)
The troublesome gift: The spermatophylax as a purveyor of sexual conflict and coercion in crickets
Scott K Sakaluk, Kristin R Duffield, James Rapkin, Ben Sadd, John Hunt.
Advances in the Study of Behavior, 51, 1-30, (2019)
A dynamic threshold model for terminal investment
Kristin R Duffield, Kylie J Hampton, Tom Houslay, John Hunt, James Rapkin, Scott K Sakaluk, Ben Sadd.
Evolution, 72, 578-589, (2018)
Effects of short-term exposure to naturally occurring thymol concentrations on transmission of a bumble bee parasite
K Rothchild, Lynn S Adler, Rebecca Irwin, Ben Sadd, Phil Stevenson, Evan C Palmer-Young.
Ecological Entomology, 43, 567-577, (2018)
Effects of the floral phytochemical eugenol on parasite evolution and bumble bee infection and preference
Evan C Palmer-Young, Austin C Calhoun, A S Mirzayeva, Ben Sadd.
Scientific Reports, 8, 2074, (2018)
Recent advances in vertebrate and invertebrate trans-generational immunity in the light of ecology and evolution
Olivia Roth, Anne Beemelmanns, Seth Barribeau, Ben Sadd.
Heredity, 121, 225-238, (2018)
Short heatwaves during fluctuating incubation regimes produce females under temperature-dependent sex determination with implications for sex ratios in nature
Amanda Carter, Ben Sadd, Tracy Tuberville, Ryan Paitz, Rachel M Bowden.
Scientific Reports, 8, 3, (2018)
Tandem repeats contribute to coding sequence variation in bumblebees (Hymenoptera: Apidae)
X Zhao, L Su, Sarah Schaack, Ben Sadd, Cheng Sun.
Genome Biology and Evolution, 10, 3176-3187, (2018)
Evolution of resistance to single and combined floral phytochemicals by a bumble bee parasite
Evan C Palmer-Young, Ben Sadd, Lynn S Adler.
Journal of Evolutionary Biology, 30, 300-312, (2017)
Neonicotinoids override a parasite exposure impact on hibernation success of a key bumblebee pollinator
Aline Fauser, Christoph Sandrock, Peter Neumann, Ben Sadd.
Ecological Entomology, 42, 306-314, (2017)
Synergistic effects of floral phytochemicals against a bumble bee parasite
Evan C Palmer-Young, Ben Sadd, Rebecca E Irwin, Lynn S Adler.
Ecology and Evolution, 7, 1836-1849, (2017)
The effect of environmental temperature on reptilian peripheral blood B cell functions
, Ben Sadd, Laura A Vogel, Rachel M Bowden.
Hormones and Behavior, 88, 87-94, (2017)
Bumble bee parasite strains vary in resistance to phytochemicals
Evan C Palmer-Young, Ben Sadd, Philip C Stevenson, Rebecca E Irwin, Lynn S Adler.
Scientific Reports, 6, (2016)
Royal Decree: Gene Expression in Trans-Generationally Immune Primed Bumblebee Workers Mimics a Primary Immune Response
Seth M Barribeau, P Schmid-Hempel, Ben Sadd.
PloS one, 11, e0159635, (2016)
The Bee Microbiome: Impact on Bee Health and Model for Evolution and Ecology of Host-Microbe Interactions
Philipp Engel, Waldan K. Kwong, Quinn McFrederick, Kirk E. Anderson, Seth Michael Barribeau, James Angus Chandler, R. Scott Cornman, Jacques Dainat, Joachim R. de Miranda, Vincent Doublet, Olivier Emery, Jay D. Evans, Laurent Farinelli, Michelle L. Flenniken, Fredrik Granberg, Juris A. Grasis, Laurent Gauthier, Juliette Hayer, Hauke Koch, Sarah Kocher, Vincent G. Martinson, Nancy Moran, Monica Munoz-Torres, Irene Newton, Robert J. Paxton, Eli Powell, Ben Sadd, Paul Schmid-Hempel, Regula Schmid-Hempel, Se Jin Song, Ryan S. Schwarz, Dennis vanEngelsdorp, Benjamin Dainat.
mBio, 7 (2), (2016), 10.1128/mBio.02164-15
A depauperate immune repertoire precedes evolution of sociality in bees
Seth Barribeau, Ben Sadd, Louis du Plessis, Mark Brown, Severine Buechel, Kaat Cappelle, James Carolan, Olivier Christiaens, Thomas Colgan, Silvio Erler, Jay Evans, Sophie Helbing, Elke Karaus, H Lattorff, Monika Marxer, Ivan Meeus, Kathrin Napflin, Jinzhi Niu, Regula Schmid-Hempel, Guy Smagghe, Robert Waterhouse, Na Yu, Evgeny Zdobnov, Paul Schmid-Hempel.
Genome Biology, 16 (1), 83, (2015), 10.1186/s13059-015-0628-y
Insect antimicrobial peptides show potentiating functional interactions against Gram-negative bacteria
Mohammad Rahnamaeian, Magorzata Cytrynska, Agnieszka Zdybicka-Barabas, Kristin Dobslaff, Jochen Wiesner, Richard M. Twyman, Thole Zuchner, Ben Sadd, Roland R. Regoes, Paul Schmid-Hempel, Andreas Vilcinskas.
Proceedings of the Royal Society of London B: Biological Sciences, 282 (1806), (2015), 10.1098/rspb.2015.0293
Terminal investment in the gustatory appeal of nuptial food gifts in crickets
Kristin R Duffield, John Hunt, James Rapkin, Ben Sadd, Scott Kitchener Sakaluk.
Journal of Evolutionary Biology, 28, 1872-1881, (2015)
The genomes of two key bumblebee species with primitive eusocial organization
Ben Sadd, et al..
Genome Biology, 16 (1), 76, (2015), 10.1186/s13059-015-0623-3
Gene expression differences underlying genotype-by-genotype specificity in a host-parasite system
Seth M Barribeau, Ben Sadd, Louis du Plessis, Paul Schmid-Hempel.
Proceedings of the National Academy of Sceinces USA, 111, 3496-3501, (2014)
Influence of combined pesticide and parasite exposure on bumblebee colony traits in the laboratory
Ben Sadd, Aline Fauser-Misslin*, Peter Neumann, Christoph Sandrock.
Journal of Applied Ecology, 51, 450-459 *Sadd & Fauser-Misslin are joint first authors, (2014)
Heterogeneity in infection outcome: lessons from a bumblebee-trypanosome system
Ben Sadd, Seth M Barribeau.
Parasite Immunology, 35, 339-349, (2013)
The origin of specificity by means of natural selection: evolved and non-host resistance in host-pathogen interactions
Janis Antonovics, Mike Boots, Dieter Ebert, Britt Koskella, Mary Poss, Ben Sadd.
Evolution, 67, 1-9, (2013)
Robustness of the outcome of adult bumblebee infection with a trypanosome parasite after varied parasite exposures during larval development.
G Cisarovsky, P Schmid-Hempel, Ben Sadd.
Journal of evolutionary biology, 25 (6), 1053-9, (2012), 10.1111/j.1420-9101.2012.02507.x
Food-environment mediates the outcome of specific interactions between a bumblebee and its trypanosome parasite.
Ben Sadd.
Evolution; international journal of organic evolution, 65 (10), 2995-3001, (2011), 10.1111/j.1558-5646.2011.01345.x
A distinct infection cost associated with trans-generational priming of antibacterial immunity in bumble-bees.
Ben Sadd, P Schmid-Hempel.
Biology letters, 5 (6), 798-801, (2009), 10.1098/rsbl.2009.0458
Principles of ecological immunology.
Ben Sadd, P Schmid-Hempel.
Evolutionary applications, 2 (1), 113-21, (2009), 10.1111/j.1752-4571.2008.00057.x
Parental guidance? Trans-generational influences on offspring life history in mosquitoes.
O Otti, Ben Sadd.
Trends in parasitology, 24 (5), 197-9, (2008), 10.1016/j.pt.2008.02.004
Insect immunity shows specificity in protection upon secondary pathogen exposure.
Ben Sadd, P Schmid-Hempel.
Current biology : CB, 16 (12), 1206-10, (2006), 10.1016/j.cub.2006.04.047
Self-harm caused by an insect's innate immunity.
Ben Sadd, M T Siva-Jothy.
Proceedings. Biological sciences / The Royal Society, 273 (1600), 2571-4, (2006), 10.1098/rspb.2006.3574
Trans-generational immune priming in a social insect.
Ben Sadd, Y Kleinlogel, R Schmid-Hempel, P Schmid-Hempel.
Biology letters, 1 (4), 386-8, (2005), 10.1098/rsbl.2005.0369
Presentations
Give it all we got tonight? Terminal investment and male cricket calling effort
Kristin Duffield, Tom M Houslay, James Rapkin, John Hunt, Scott Kitchener Sakaluk, Ben Sadd.
23rd Annual Animal Behavior Conference, Indiana University, Bloomington, IN, March, 2016
The effect of environmental temperatures on reptilian B cell function
Sarah Marrochello, Ben Sadd, Rachel Michelle Bowden, Laura Anne Vogel.
Autumn Immunology Conference, Chicago, IL, November, 2015