Sagebrush Field Site (IMAGE) Marine Biological Laboratory Caption Field experiments were conducted in a remote area near Utah's Bear Lake where the ecosystem's productivity is limited by both water and nitrogen availability. Credit Zoe Cardon Usage Restrictions Use with photographer credit. 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.