David Roubik, Smithsonian Tropical Research Institute (image) Smithsonian Tropical Research Institute Share Print E-Mail Caption Throughout David Roubik's long career as a tropical bee biologist, he has tracked the progress of Africanized bees as they swept through Central America. A 17-year study of these "killer bees" shows that drought and climate change may have more effect on native bees than this invasion. Credit STRI Archives Usage Restrictions Credit: STRI Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.