Ecology and Evolutionary Biology Professor Steven Allison was listed among the top cited researchers in the 2017 Clarivate Analytics Highly Cited Researchers List. Professor Allison, who has a joint faculty appointment in Earth System Science, utilizes molecular, biochemical, and theoretical approaches to understand how microbes regulate ecosystem processes. The Clarivate Analytics Highly Cited Researchers List helps identify scientists whose research has had a significant impact in their fields. The 2017 list reflects highly cited research papers published between 2005-2015. To view the full list of researchers.