UAS Protype (IMAGE) Ecological Society of America Caption This is a UAS prototype for fire ignitions, from figure 4 of Twidwell D et al (2016) Front Ecol Environ 14(6): 333-339. Credit ESA Usage Restrictions with credit 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.