Alaska's Boreal Forests (IMAGE) University of Alaska Fairbanks Caption Empirical evidence from Alaska's boreal forest suggests that every 1 percent reduction in overall plant diversity could render an average of .23 percent decline in individual tree productivity. Credit Todd Paris/UAF 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.