November 23, 2014
College of Computer, Mathematical, and Natural Sciences

Dennis vanEngelsdorp

Assistant Professor



Office Phone: 301-405-3942  Cell Phone:717-884-2147

Fax: 301-314-9290

Office Address: Department of Entomology * 3136 Plant
Sciences Building * University of Maryland * College Park, MD 20742-4454



Research Interests


My research focus on pollinator health, and honey bee health specifically.  I am particularly intrigued with using an epidemiological approach to understanding and (importantly) improving honey bee health. This approach is multi-faceted, requiring understanding both the etiology of individual bee diseases and the large scale monitoring of colony health.   <>

Some of the areas my lab are addressing include:


  • Identifying determinates of disease in honey bee colonies.

  • Identifying and promoting management systems which promote colony

  • Broad scale monitoring of pollinator health

I encourage students interested in these
broad themes to contact me for M.S. and Ph.D. opportunities.


TED: A Plea for

Recent Publications



Pettis J. S., E. M.Lichtenberg, M. Andree, J. Stitzinger, R. Rose, and D. vanEngelsdorp. 2013. Crop
Pollination Exposes Honey Bees to Pesticides Which Alters Their Susceptibility
to the Gut Pathogen Nosema ceranae.
PloS ONE 8: e70182.

Tarpy, D. R., D. vanEngelsdorp,>and J. S. Pettis. (2013). Genetic diversity affects colony survivorship in commercial honey bee
Naturwissenschaften, 100: 723-728.

vanEngelsdorp,D., E. Lengerich, A. Spleen, B. Dainat, J. Cresswell, K. Baylis, B. K. Nguyen,V. Soroker, R. Underwood, H. Human, Y. Le Conte, and C. Saegerman. 2013. Standard
epidemiological methods to understand and improve Apis mellifera health
. Journal of Apicultural Research 52.

Spleen, A. M., E.J.
Lengerich, K. Rennich, D. Caron, R. Rose, J. S. Pettis, M. Henson, J. T.
Wilkes, M. Wilson, J. Stitzinger, K. Lee, M. Andree, R. Snyder, D. vanEngelsdorp,
and P.
Bee Informed. 2013. A national survey of managed honey bee 2011-12 winter
colony losses in the United States: results from the Bee Informed Partnership.
Journal of Apicultural Research 52.

de Graaf, D. C., A.M.
Alippi, K. Antunez, K. A. Aronstein, G. Budge, D. De Koker, L. De Smet, D. W.
Dingman, J. D. Evans, L. J. Foster, A. Funfhaus, E. Garcia-Gonzalez, A.
Gregorc, H. Human, K. D. Murray, B. K. Nguyen, L. Poppinga, M. Spivak, D. vanEngelsdorp,
S. Wilkins, and E. Genersch. 2013.
Standard methods for American
foulbrood research.
Journal of Apicultural
Research 52.

Cornman, R. S., H
Boncristiani, B. Dainat, Y. P. Chen, D. vanEngelsdorp, D. Weaver, and J.
D. Evans. 2013.
Population-genomic variation within RNA viruses of the Western honey bee,
Apis mellifera, inferred from deep sequencing.

Bmc Genomics 14.

D., D. R. Tarpy, E. J. Lengerich, and J. S. Pettis. 2013.
Idiopathic brood disease syndrome and queen events as precursors of
colony mortality in migratory beekeeping operations in the eastern United
Preventive Veterinary Medicine 108: 225-233.

Cornman, R. S., D.
R. Tarpy, Y. Chen, L. Jeffreys, D. Lopez, J. S. Pettis, D. vanEngelsdorp,
and J. D. Evans. 2012.
Pathogen Webs in Collapsing Honey Bee Colonies.
PloS ONE 7: e43562.

D. R. Tarpy, K. Baylis, M. Spivak, D. M. Caron, J. Connell, K. S. Delaplane, S.
Donohue, W. Esaias, B. Gross, J. Hayes, Jr., E. J. Lengerich, J. Pettis, K.
Rennich, R. Underwood, R. Rose, J. Skinner, and J. Wilkes. 2012.
The Bee Informed Partnership: Using Beekeeper's Real-World Experience to
Solve Beekeepers' Real-World Problems
. American
Entomologist 58: 116-118.

vanEngelsdorp, D., D. Caron, J. Hayes, R.Underwood,
K. R. M. Henson, A. Spleen, M. Andree, R. Snyder, K. Lee, K. Roccasecca, M.
Wilson, J. Wilkes, E. Lengerich, and J. Pettis. (2012). "
A national survey of managed honey
bee 2010-11 winter colony losses in the USA: results from the Bee Informed
Journal Apicultural Research 51(5): 115-124.

Boncristiani, H., R. Underwood, R. Schwarz, J. D.Evans,
J. Pettis, and D. vanEngelsdorp. 2012
Direct effect of acaricides on pathogen loads and gene expression levels in
honey bees Apis mellifera
. Journal
of Insect Physiology. 58:613-620

Cresswell, J. E., N. Desneux, and D.vanEngelsdorp.
Dietary traces of neonicotinoid pesticides as a cause of
population declines in honey bees: an evaluation by Hill's epidemiological
. Pest Management Science.

Aebi, A., B. E. Vaissière, D. vanEngelsdorp, K. S. Delaplane, D. W.
Roubik, and P. Neumann. 2012.
Back to the future: Apis versus non-Apis
pollination—a response to Ollerton et al.
Trends in Ecology & Evolution 27: 142-143.

Dainat, B., D. vanEngelsdorp, and P. Neumann. 2012. Colony collapse disorder in Europe. Environmental Microbiology Reports 4:

vanEngelsdorp, D., D. Caron, J. Hayes, R. Underwood, K.
R. M. Henson, A. Spleen, M. Andree, R. Snyder, K. Lee, K. Roccasecca, M.
Wilson, J. Wilkes, E. Lengerich, and J. Pettis. 2012.
A national survey of managed honey bee
2010-11 winter colony losses in the USA: results from the Bee Informed
Journal of
Apicultural Research 51: 115-124.

Pettis, J., D. vanEngelsdorp, J. Johnson, and G. Dively. 2012. Pesticide exposure in honey bees results in
increased levels of the gut pathogen Nosema.
Naturwissenschaften 99: 153-158.

Nguyen, B. K., M. Ribière, D. vanEngelsdorp,
C. Snoeck, C. Saegerman, A. L. Kalkstein, F. Schurr, Y. Brostaux, J. Faucon and
E. Haubruge 2011.
Effects of honey bee virus
prevalence, Varroa destructor load and queen condition on honey bee colony
survival over the winter in Belgium.
Journal of Apicultural Research 50:195-202

vanEngelsdorp, D., R. Brodschneider, Y.
Brostaux, R. van der Zee, L. Pisa, R. Underwood, E. J. Lengerich, A. Spleen, P.
Neumann, S. Wilkins, G. E. Budge, S. Pietravalle, F. Allier, J. Vallon, H.
Human, M. Muz, Y. Le Conte, D. Caron, K. Baylis, E. Haubruge, S. Pernal, A.
Melathopoulos, C. Saegerman, J. S. Pettis, and B. K. Nguyen. 2011. Calculating
and Reporting Managed Honey Bee Colony Losses, pp. 237-244. In Sammataro and
Yoder [eds.], Honey Bee Colony Health: Challenges and Sustainable Solutions.
CRC Press: Taylor & Francis Group, LLC.

vanEngelsdorp, D., J. Hayes Jr, R. M. Underwood, D. Caron and J. S.
Pettis. 2011
A survey of honey bee colony losses in the United States,
fall 2009 to spring 2010.
Journal of Apicultural Research. 50:

R., Kalkstein A.L., Rajotte E.G., Holmes E.C., Ostiguy N., vanEngelsdorp D., Lipkin W.I., dePamphilis C.W., Toth A.L., and
Cox-Foster, D.L.  2010 
RNA Viruses in Hymenopteran Pollinators: Evidence of
Intertaxa Virus Transmission via Pollen and Potential Impact on Non-Apis
Hymenopteran Species.
PloS One.
5(12): e14357

vanEngelsdorp, D., N. Speybroeck, J. Evans, B.
K. Nguyen, C. Mullin, M. Frazier, J. Frazier, D. Cox-Foster, Y. Chen, D. R.
Tarpy, E. Haubruge, J. S. Pettis, and C. Saegerman. 2010.
Weighing risk factors associated with bee Colony
Collapse Disorder by classification and regression tree analysis
. Journal of Economic Entomology. 103:1517-1523

W.,  J. Ellis, D. vanEngelsdorp, J. Hayes, D. Westervelt, E. Glick, M. Williams, I.
Sela, E. Maori, J. Pettis, D. Cox-Foster, N. Paldi. 2010.
Large-scale field application of RNAi technology to reduce
Israeli Acute Paralysis Virus (IAPV) induced disease in honeybees (Apis mellifera, Hymenoptera: Apidae).
PLOS Pathogens.
6(12): e1001160.

Nguyen, B. K., J. Mignon, D. Laget, D.C.  de Graaf, F. J. Jacobs, D.  vanEngelsdorp, Y. Brostaux, C.
Saegerman, and E. Haubruge. 2010
Honey bee colony losses in Belgium
during the 2008-2009 winter.
Journal of
Apicultural Research

Williams, G. R., D. R. Tarpy, D. vanEngelsdorp,
M. P. Chauzat, D. L. Cox-Foster, K. S. Delaplane, P. Neumann, J. S. Pettis, R.
E. L. Rogers, and D. Shutler. 2010.
Colony Collapse Disorder in
. BioEssays. 32:845-846.

Donovall, L. R., and D. vanEngelsdorp. 2010. A Checklist of the Bees (Hymenoptera: Apoidea) of
Journal of the Kansas Entomological
Society 83: 7-24.C.

Mullin, M. Frazier, J. Frazier, S. Ashcraft, R.
Simonds, D. vanEngelsdorp, and J. Pettis. 2010.
High Levels of Miticides and Agrochemicals in North American
Apiaries:  Implications for Honey Bee
. 5: e9754

D., J.
Hayes Jr, R. M. Underwood, and J. S. Pettis. 2010.
A survey of honey bee colony losses in the United States,
fall 2008 to spring 2009.
Journal of Apicultural Research. 49: 7

D., and M.
D. Meixner. 2010.
A Historical Review of Managed Honey Bee Populations in
Europe and the United States and the Factors That May Affect Them.
Journal of
Invertebrate Pathology.
103: S80-S95.

 vanEngelsdorp, D., and L. R. Donovall.
Note: New Plant Host Record and
First Record of the Burrower Bug Sehirus cinetus (Palisot de Beauvois)
(Hemiptera: Cydnidae) Associating with Honey Bees, Apis mellifera L.
(Hymenoptera: Apidae). Proceedings of the
Entomology Society of Washington.
111: 903-906.

vanEngelsdorp, D., J. D. Evans, C. Saegerman, C. Mullin, E.
Haubruge, B. K. Nguyen, M. Frazier, J. Frazier, D. Cox-Foster, Y. Chen, R.
Underwood, D. R. Tarpy, and J. S. Pettis. 2009.
Colony Collapse Disorder: A Descriptive Study. PLoS ONE.
4: e6481. 

vanEngelsdorp, D., J. D. Evans, L. Donovall, C. Mullin, M.
Frazier, J. Frazier, D. R. Tarpy, J. Hayes Jr, and J. S. Pettis. 2009. "Entombed Pollen": A new
condition in honey bee colonies associated with increased risk of colony
mortality. Journal of Invertebrate
. 101: 147-149.

vanEngelsdorp, D., S. Gebauer, R. Underwood. 2009. A Modified
-queen System: “Tower” Colonies Allowing
for Easy Drone Brood Removal for Varroa Mite Control.  Science
of Bee Culture
. 1: 1-4.

vanEngelsdorp, D., J. Hayes, Jr., R. M. Underwood, and J. Pettis. 2008. A
Survey of Honey Bee Colony Losses in the U.S., Fall 2007 to Spring 2008. PLoS ONE. 3: e4071.

G., J. Hui, P.L. Quan, A. Kalkstein, K.S. Honkavuori, A.V. Bussetti, S. Conlan,
J. Evans, Y.P. Chen, D. vanEngelsdorp, H. Efrat, J. Pettis, D.
Cox-Foster, E.C. Holmes, T. Briese, W.I. Lipkin. 2008.
Genetic analysis of Israel Acute
Paralysis Virus: distinct clusters are circulating in the United States
of Virology
. 75: 7862-7865





2010       Roger A.
Morse Outstanding Teaching/Extension Service/Regulatory Award

                Gigapixel Imagery for
Science Juried Show winner, Carnegie Natural History Museum

2009       Fine Fellowship
Scholarship for Gigapixel Imagery for Science Outreach



2011      Doctorate of Philosophy. The Pennsylvania State University, University Park, PA, USA

1995       Master of Science in Environmental Biology. University of Guelph, Guelph, Ontario, Canada

1992       Bachelor
of Science in Agriculture. 
University of Guelph, Guelph, Ontario, Canada