Tornado (image) Ecological Society of America Share Print E-Mail Caption Weather events like this tornado are unique events that pose challenges for reproducibility in field ecology data. Credit NOAA Photo Library Usage Restrictions Photo courtesy of NOAA Photo Library. 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.