Antoine Guisan is Professor at the Université de Lausanne, Switzerland, where he leads the ECOSPAT Spatial Ecology group. Besides being a specialist in habitat suitability and distribution models, his interests also include ecological niche dynamics in space and time, community and multitrophic modeling, very high resolution spatial modeling in mountain environments, and applications of models to environmental decision-making and transfer of scientific knowledge to society. Wilfried Thuiller is a senior scientist at the Centre national de la recherche scientifique (CNRS), Laboratory of Alpine Ecology in Grenoble, France. Besides being a specialist in habitat suitability and distribution models, his interests include macroecology, macroevolution, conservation, biodiversity modeling with both mechanistic and phenomenological models, community ecology, functional ecology, and ecosystem functioning in alpine environments. Niklaus E. Zimmermann is a senior scientist and directorate member of the Swiss Federal Research Institute WSL, and an adjunct professor at the Swiss Federal Institute of Technology Zurich (ETH Zurich). Besides being a specialist in habitat suitability and distribution models, his interests include macroecology, macroevolution, biodiversity and community modeling using both empirical and mechanistic approaches, as well as conservation and applied biodiversity management support.