I was at the Woody Plants Conference back in July at Swarthmore College, and particularly enjoyed a talk by Peter Del Tredici entitled “Preadaptation of Plants to Specialized Urban Niches in Northeastern North America”. Del Tredici recently retired from Arnold Arboretum as a senior scientist emeritus after 35 years of service, and has taught at … More Learning about #preadaptation and the emergent #ecology of cities at Swarthmore’s Woody Plants Conference