Professor of Tree Biology & Health Care University Hill Fellow for Distinguished Public Service & Outreach Elected world President of the International Society of Arboriculture (ISA), past President of the Southern Chapter of ISA (9 states), past President of the international Arboriculture Research & Education Academy (AREA), and founding member and past President of the Georgia Urban Forest Council. Appointed to the USDA-Secretary’s NUCFAC (National Urban & Community Forestry Advisory Council), advising on urban and community forestry issues representing the nation's educational institutions. First person to receive four of ISA’s competitive world awards – the Shigo, Harris, Lilly, and Merit awards. Granted the Arbor Day Foundation’s highest award -- the J. Sterling Morton award. Author of over 500 technical publications and articles. International lecturer and consultant to private citizens, corporations, attorneys, and communities on tree biology & health care, tree risk, tree appraisal, abiotic tree stress, lightning & tree protection, storm damage, biomechanics, climate change & trees, and community forest ecology. Outreach Outreach programming and educational product development in tree health care, technical arboriculture, abiotic tree & site stress, tree morphology, taxonomy & physiology, tree biology, lightning & tree protection, storm damage & risk assessment, tree biomechanics / structural mechanics, tree risks and hazards, tree appraisal & asset assessment, essential element diagnosis & life-staged based fertilization, climate change & tree impacts, and community forest ecology. Education Education: PhD, Forest Ecology, Iowa State University MS, Tree Physiology, Iowa State University BS, Forest Management, Iowa State University Research Labs/Centers/Committee: Outreach Faculty Tree Health Care and Community Forestry Lab Area of Specialty: Forest Biology Physiology Ecology Health and Protection Service and Outreach/Extension Research Areas: Forest Biology Community Forestry and Arboriculture
