World Map of Nutrient Network Sites (image) University of Nebraska-Lincoln Share Print E-Mail Caption This map shows Nutrient Network sites studied. Numbers correspond to chart included with Nature article describing each site. Credit Nature 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.