1. Australian Research Centre for Urban Ecology, Royal Botanic Gardens Victoria and School of BioSciences, University of Melbourne, Melbourne, Victoria 3010, Australia.
2. Red de Ambiente y Sustentabilidad, Instituto de Ecología, A.C. (INECOL), Carretera Antigua a Coatepec 351, El Haya, Xalapa 91070, Veracruz, Mexico.