Plot of occurrences in each geographic region based on their values for the first two principal component axes derived from values of the nine environmental variables used in the MaxEnt models (Table 1).

  Part of: Blackburn LM, Elkinton JS, Havill NP, Broadley HJ, Andersen JC, Liebhold AM (2020) Predicting the invasion range for a highly polyphagous and widespread forest herbivore. NeoBiota 59: 1-20.