Researchers Explain Biodiversity Variables (IMAGE) Helmholtz Centre for Environmental Research - UFZ Caption Researchers explain biodiversity variables (EBVs) by comparing to the stock market. Credit Photo/Montage: UFZ 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.