Peter Stoett1, Helen E Roy2, Aníbal Pauchard3. 1. Faculty of Social Science and Humanities, Ontario Tech University, Oshawa, ON L1G 0C5, Canada. Electronic address: peter.stoett@uoit.ca. 2. Centre for Ecology & Hydrology, Crowmarsh Gifford, Oxford, UK. 3. Laboratorio de Invasiones Biológicas, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile; Instituto de Ecología y Biodiversidad, Santiago, Chile.