Herman Verhoef obtained his PhD at the Faculty of Biology of the Vrije Universiteit Amsterdam. After having been involved in the ecophysiology of soil animals, he has turned his attention to Community Ecology. He is a Professor of Soil Ecology at the Vrije Universiteit Amsterdam, focussing on soil-plant interactions and the relations between spatial heterogeneity and biodiversity.
Peter Morin obtained his PhD in Zoology from Duke University in Durham, NC, USA. He is a Professor in the Department of Ecology, Evolution, & Natural Resources at Rutgers University in New Brunswick, NJ, USA. He is a community ecologist, and is interested in a number of topics, including biodiversity and ecosystem functioning, ecological networks, interactions between competition and predation, and microbial ecology.