1. Aukema JE, McCullough DG, Von Holle B, Liebhold AM, Britton K, Frankel SJ (2010) Historical accumulation of nonindigenous forest pests in the continental US. Bioscience 60:886–897
2. Barton K (2010) MuMIn: multi-model inference R package version 01317
3. Bright DE, Skidmore RE (1997) A Catalog of Scolytidae and Platypodidae (Coleoptera) Supplement 1 (1990–1994). National Research Council Press, Ottawa
4. Bright DE, Skidmore RE (2002) A Catalog of Scolytidae and Platypodidae (Coleoptera) Supplement 2 (1995–1999). National Research Council Press, Ottawa
5. Brockerhoff EG (2009) Wood borer and bark beetle risk analysis. Scion report no 16833 for New Zealand Forest Biosecurity Research Council Scion, Rotura, New Zealand