Breadcrumb Home News The Diversifying of Tree Species on the UI Campus Monday, February 21, 2022 The Daily Iowan https://dailyiowan.com/2022/02/21/opinion-its-time-to-start-paying-attention-to… After historical waves of invasive species infestations, UI campus responds to mass-killings of the Green Ash tree species by implementing an interesting kind of diversity: celebrity trees.