Saguaro Volcano (IMAGE) Ecological Society of America Caption Volcanic eruptions create climate conditions favoring the regeneration of saguaro cacti on the far side of the world -- new research by York University biogeographer Taly Drezner presented at the 101st Annual Meeting of the Ecological Society of America, in Fort Lauderdale, Florida. Credit Ecological Society of America 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.