Jessica Whiteside, Brown University (IMAGE) Brown University Caption Jessica Whiteside, of Brown University, collecting specimens at Ghost Ranch, N.M. A low diversity of species leads to boom-bust cycles in the food supply. Credit Randall Irmis 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.