Michigan Tech Ecologists (image) Michigan Technological University Share Print E-Mail Caption Rolf Peterson, Sarah Hoy and John Vucetich are researchers from the School of Forest Resources and Environmental Science (SFRES) at Michigan Tech. They lead the Isle Royale predator-prey study, the longest-running study of its kind in the world. Credit Sarah Bird/Michigan Tech Usage Restrictions please credit 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.