Stephen Hesterberg (IMAGE) University of South Florida Caption University of South Florida researcher Stephen Hesterberg led a study showing that oyster reef habitats are disappearing as a result of Florida's increasingly tropical climate. Credit USF Usage Restrictions NA License Original content 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.