Soil sampling location map (IMAGE) Indiana University Caption A map of sampling locations across the eastern United States used in the studies. The green dot indicates Moores Creek where AM and ECM dominated plots are located while the red dots indicate sites associated with the 54-plot gradient. The Moores Creek site contains 16 total plots (8-AM and 8-ECM dominated) while each site in the 54-plot gradient contains nine plots of varying AM/ECM composition. Credit Graphic by Mushinski, et al. Usage Restrictions Credit source 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.