• Which taxa are alien? Criteria, applications, and uncertainties 

      Essl, F.; Bacher, S.; Genovesi, P.; Hulme, P.E.; Jeschke, J.M.; Katsanevakis, S.; Kowarik, I.; Kuhn, I.; Pysek, P.; Rabitsch, W.; Schindler, S.; van Kleunen, M.; Vila, M.; Wilson, J.R.U.; Richardson, D.M. (Oxford University Press, 2018)
      Human activities such as the transport of species to new regions and modifications of the environment are increasingly reshaping the distribution of biota. Accordingly, developing robust, repeatable, and consistent definitions ...