Insect Diversity (IMAGE) University of Delaware Caption Research shows that non-native plantings have an impact on the diversity of insect populations. Credit Photos by Karin Burghardt, Douglas Tallamy/University of Delaware Usage Restrictions Must credit University of Delaware 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.