Topics Range from the Role of Symbiotic Bacteria in Agriculture to Peatmosses as Ecosystem Engineers (image) National Science Foundation Share Print E-Mail Caption NSF Dimensions of Biodiversity grantees will study Campbell Lake and nearby peatlands in Alaska. Credit A. Jonathan Shaw, D.J. Weston, Duke University Usage Restrictions None 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.