UMD Doctoral Student’s Brief Video on his Revolutionary Finding about Bee Health Wins International Competition

UMD Doctoral Student’s Brief Video on his Revolutionary Finding about Bee Health Wins International Competition

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A University of Maryland doctoral candidate in the Department of Entomology, Samuel Ramsey, has been named both the Judge’s First Place and People’s Choice award winners in the annual Three Minute Thesis (3MT) contest, sponsored by Universitas 21 (U21), a global network of leading research universities. The contest challenges graduate students to communicate the significance of their research to a non-specialist audience in three minutes.

Ramsey competed against 16 other finalists from U21 member institutions across the world. He was selected for the judge’s First Place Award by a distinguished international panel of judges, and received the People’s Choice award as a result of online popular voting. 

“This experience has been challenging but in the best way possible,” said Ramsey. “So many groundbreaking scientific discoveries never move beyond the pages of journals to public consciousness or public policy, partly because it’s difficult to explain things briefly without sacrificing accuracy. That’s why I’m so glad that I entered this contest. It forced me to refine this skill; one that I’m certain will serve me well throughout my career in science.”

Ramsey conducts research on a tiny parasitic mite, Varroa destructor, which is the single biggest contributor to the decline in health of honey populations worldwide. Originating in Asia, the invasive Varroa mite is wreaking havoc on honey bee colonies, both by feeding on adult and immature bees, and by serving as a vector for five debilitating viruses. 

For nearly 50 years, researchers have believed that the mite fed on the hemolymph (the “blood”) of the honey bee. Ramsey’s extensive research on the feeding habits and nutrition of the Varroa mite provides strong evidence that this model is wrong, and that current methods of controlling the parasite are not only ineffective, but actually may contribute to the parasites developing resistance to pesticides as well. 

Ramsey’s research establishes that the mites are primarily feeding on the honey bee’s fat body tissue—an organ in insects that serves a similar role to the human liver. Since several existing systemic pesticides were formulated assuming that mites fed on hemolymph, this discovery explains why these pesticides were never successful in controlling the mites. The mites will never ingest enough to kill them, but frequent exposure may contribute to future resistance. Ramsey’s work also explains why honey bees suffer so many negative consequences from a parasite believed to consume a small amount of their blood. His discovery will enable researchers to develop more targeted control techniques that could help restore honey bee populations worldwide.

Steve Fetter, Ph.D., interim dean of the Graduate School and associate provost for academic affairs at the University of Maryland, spoke of Samuel’s achievement: “We are thrilled that Sammy Ramsey won both the U21 3MT® judge's prize and the People's Choice prize in this year's competition. Sammy's presentation is a wonderful example of how researchers can describe their work to a general audience in a clear, compelling and engaging manner."

Ramsey is currently a visiting researcher at Chiang Mai University in Thailand, where he is studying parasites that attack Asian honey bee populations. He plans to defend his dissertation this spring. He joins a growing list of UMD students who have successfully competed in the 3MT contest. The University  has won more awards than any other single institution. In 2015, UMD student Carly Muletz Wolz, a doctoral candidate in biological sciences, won the People’s Choice award, and in  2014, the first year that UMD entered the competition, Amy Marquardt, who completed her PhD in material science and engineering, won both the judges’ First Place and People’s Choice awards.

November 2, 2017


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