Ecosystem Services in Streams - Winter (IMAGE) University of Georgia Caption The researchers maintained additions of nitrogen and phosphorus to streams year-round, including during snowy winter months. Credit Phillip M. Bumpers/University of Georgia Usage Restrictions None License Licensed 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.