Reed Johnson

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Reed Johnson

Assistant Professor

johnson.5005@osu.edu

330-202-3523

Office:

118 Thorne Hall Thorne

1680 Madison Ave., Wooster, OH 44691

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Degrees & Credentials:

Ph.D. 2008, Entomology, University of Illinois at Urbana-Champaign

M.S. 2002, Biology, Wake Forest University

B.A. 1998, Biology, Wabash College

Interests & Expertise:

Apiculture

Pollinator toxicology

Genomics

Biography:

Research area:

Insect pollinators are vital for the production of many fruits, nuts and vegetables, including apples, blueberries, almonds, tomatoes and pumpkins. These crops are also vulnerable to pests and diseases, which are often controlled through the use of pesticides. However, pesticides may be toxic to insect pollinators, setting up a conflict between the need for pollination and the need for pest and disease control. In our lab we are seeking to understand how to protect pollinators from the pesticides and other toxins they encounter. The managed European honey bee, Apis mellifera, serves as a model pollinator for toxicological testing. While the honey bee is the most economically important pollinator in the U.S. and serves as an excellent model species, we are also interested in understanding pesticide toxicity in other pollinating insects as well.

Current research projects include:

1. Using sequencing to determine the floral origin of bee-collected pollen

2. Determining the impact of corn seed treatment insecticides on honey bee colonies in Ohio

3. Comparative toxicogenomics between pollinating bee species: honey bees (Apis mellifera), bumble bees (Bombus impatiens), alfalfa leafcutter bees (Megachile rotundata) and squash bees (Peponapis pruinosa)

4. Assessment of honey bee immature survival using a photographic method and analysis by volunteers at http://broodmapper.com

5. Comparing the success of managed honey bee colonies in urban and rural environments in Ohio

Teaching

Beekeeping (ENTMLGY 2200) Spring Semesters

Pesticide Science (ENTMLGY 5800) Fall Semesters (co-taught with Celeste Welty)

Graduate Students

Rodney Richardson (Ph.D. Student)

Stephanie Murray (M.S. Student)

Recent Graduates

Douglas Sponsler (Ph.D in 2016). Currently a postdoctoral research associate at Penn State: http://ento.psu.edu/directory/dbs31

Natalia Riusech (M.S. in 2017 from the Environmental Sciences Graduate Program)

Works

Selected Papers

Sponsler DB, Matcham EG, Lin CH, Lanterman JL, Johnson RM. 2017. Spatial and taxonomic patterns of honey bee foraging: A choice test between urban and agricultural landscapes. Journal of Urban Ecology. 3(1). http://dx.doi.org/10.1093/jue/juw008

Richardson RT, Bengtsson-Palme J, Johnson RM. 2016. Evaluating and optimizing the performance of software commonly used for the taxonomic classification of DNA metabarcoding sequence data. Molecular Ecology Resources http://dx.doi.org/10.1111/1755-0998.12628

Sponsler DB, Johnson RM. 2017. Mechanistic modeling of pesticide exposure: The missing keystone of honey bee toxicology. Environ. Toxicol. Chem. 36: 871–881. http://dx.doi.org/10.1002/etc.3661
Richardson RT, Lin C-H, Quijia JO, Riusech NS, Goodell K, Johnson RM. 2015. Rank-based characterization of pollen assemblages collected by honey bees using a multi-locus metabarcoding approach. Applications in Plant Sciences. 3 (3): 1500043.http://dx.doi.org/10.3732/apps.1500043

Berenbaum MR, Johnson RM. 2015. Xenobiotic detoxification pathways in honey bees. Current Opinion in Insect Science. 10: 51–58. http://dx.doi.org/10.1016/j.cois.2015.03.005

Johnson RM. 2015. Honey bee toxicology. Annual Review of Entomology. 60:415-34. http://arjournals.annualreviews.org/eprint/JNCiwDc63RIR3bDDRRqi/full/10.1146/annurev-ento-011613-162005

Richardson RT., Lin C-H, Quijia Pillajo JO, Sponsler DB, Goodell K, Johnson RM. 2015. Application of ITS2 metabarcoding to determine the provenance of pollen collected by honey bees in a field-crop dominated agroecosystem. Applications in Plant Sciences. 3 (1): 1400066 http://dx.doi.org/10.3732/apps.1400066

Johnson RM & Percel EG. 2013. Pristine effects on queen rearing success in honey bees. Journal of Economic Entomology. 106: 1952-1957. http://dx.doi.org/10.1603/EC13199

Johnson RM, Dahlgren L, Siegfried BD & Ellis MD. 2013. Acaricide, fungicide and drug interactions in honey bees (Apis mellifera). PLoS ONE. 8(1): e54092. http://dx.doi.org/10.1371/journal.pone.0054092

Dahlgren L, Johnson RM, Siegfried BD & Ellis MD. 2012. Comparative toxicity of acaricides to honey bee (Hymenoptera: Apidae) workers and queens. Journal of Economic Entomology. 105: 1895-1902. http://dx.doi.org/10.1603/EC12175

Teeters BS, Johnson RM, Ellis MD & Siegfried BD. 2012. Video-tracking honey bee behavior after pesticide exposure. Environmental Toxicology and Chemistry. 31: 1349-1354.http://dx.doi.org/10.1002/etc.1830

Johnson RM, Mao W, Pollock HS, Niu G, Schuler MS & Berenbaum MR. 2012. Ecologically appropriate xenobiotics induce cytochrome P450s in Apis mellifera. PLoS ONE. 7: e31051. http://dx.doi.org/10.1371/journal.pone.0031051

Johnson RM, Ellis MD, Mullin CA & Frazier M. 2010. Pesticides and honey bee toxicity – USA. Apidologie 41: 312-331. http://dx.doi.org/10.1051/apido/2010018

Johnson RM, Evans JD, Robinson GE &Berenbaum MR. 2009. Changes in transcript abundance relating to colony collapse disorder in honey bees (Apis mellifera). Proceedings of the National Academy of Sciences of the United States of America 106: 14790-14795. http://dx.doi.org/10.1073/pnas.0906970106

Johnson RM, Pollock HS &Berenbaum MR. 2009. Synergistic interactions between in-hive miticides in Apis mellifera.Journal of Economic Entomology 102: 474-479. http://dx.doi.org/10.1603/029.102.0202

Johnson RM, Wen Z, Schuler MA, & Berenbaum MR. 2006. Mediation of pyrethroid insecticide toxicity to honey bees (Hymenoptera :Apidae) by cytochrome P450 monooxygenases. Journal of Economic Entomology 99:1046-1050. http://dx.doi.org/10.1603/0022-0493-99.4.1046

Entomology

Department of Entomology

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