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Saving the world’s ash forests calls for international cooperation now

Ash forests in North America and Eurasia are rapidly being lost to two invasive alien species: the emerald ash borer and Chalara ash dieback fungus. We argue that better regulatory policy and science-based intervention can help slow losses, and recommend an international consortium to coordinate science-based intervention.

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Fig. 1: Ash (Fraxinus) species distribution and secondary ranges of two invaders, EAB (A. planipennis; and Chalara ADF (H. fraxineus)13,15.


  1. Wallander, E. Belgische Dendrol. Belge 2012, 39–58 (2012).

    Google Scholar 

  2. Kovacs, K. F. et al. Ecol. Econ. 69, 569–578 (2010).

    Article  Google Scholar 

  3. Siegert, N. W., McCullough, D. G., Liebhold, A. M. & Telewski, F. W. Divers. Distrib. 20, 847–858 (2014).

    Article  Google Scholar 

  4. Bray, A. M. et al. Biol. Invasions 13, 2869–2887 (2011).

    Article  Google Scholar 

  5. Herms, D. A. & McCullough, D. G. Annu. Rev. Entomol. 59, 13–30 (2014).

    Article  CAS  Google Scholar 

  6. Musolin, D. L., Selikhovkin, A. V., Shabunin, D. A., Zviagintsev, V. B. & Baranchikov, Y. N. Baltic For. 23, 316–333 (2017).

    Google Scholar 

  7. Miles, P. Forest Inventory EVALIDator Version (US Department of Agriculture Forest Service, accessed 20 April 2017);

  8. Sydnor, T. D., Bumgardner, M. & Subburayalu, S. Arboric. Urban For. 37, 84–89 (2011).

    Google Scholar 

  9. Aukema, J. E. et al. PLoS ONE 6, e24587 (2011).

    Article  CAS  Google Scholar 

  10. Drenkhan, R., Sander, H. & Hanso, M. Eur. J. Forest Res. 133, 769–781 (2014).

    Article  Google Scholar 

  11. Pautasso, M., Aas, G., Queloz, V. & Holdenrieder, O. Biol. Conserv. 158, 37–49 (2013).

    Article  Google Scholar 

  12. Husson, C., Cael, O., Grandjean, J. P., Nageleisen, L. M. & Marcais, B. Plant Pathol. 61, 889–895 (2012).

    Article  Google Scholar 

  13. Zviagintsev, V., Seraya, L., Panteleev, S., Yaruk, A. & Baranchikov Y. Hymenoscyphus fraxineus at eastern border of its secondary range in Europe. In IUFRO 125th Anniversary Congress 2017 Abstract Book, 334 (FVA, Baden-Württemberg, 2017).

  14. Nielsen, L. R., McKinney, L. V., Hietala, A. M. & Kjær, E. D. Eur. J. Forest Res. 136, 1–5 (2017).

    Article  Google Scholar 

  15. McKinney, L. V. et al. Plant Pathol. 63, 485–499 (2014).

    Article  Google Scholar 

  16. Mackay, H., Keskitalo, E. C. H. & Pettersson, M. Biol. Invasions 19, 1953‒1970 (2017).

  17. Klapwijk, M. J. et al. Ambio 45, 223–234 (2016).

    Article  Google Scholar 

  18. Marzano, M. et al. Forest Policy Econ. 70, 164–171 (2016).

    Article  Google Scholar 

  19. Haack, R. A. et al. PLoS ONE 9, e96611 (2014).

    Article  Google Scholar 

  20. Harrison, C., Tomlinson, J., Ostoja-Starzewska, S. & Boonham, N. Eur. J. Plant Pathol. 149, 253–259 (2017).

    Article  CAS  Google Scholar 

  21. Duan, J., Bauer, L. & Van Driesche, R. Forest Ecol. Manag. 394, 64–72 (2017).

    Article  Google Scholar 

  22. Orlova-Bienkowskaja, M. J. Eur. J. Entomol. 112, 778–789 (2015).

    Article  Google Scholar 

  23. Harper, A. L. et al. Sci. Rep. 6, 19335 (2016).

    Article  CAS  Google Scholar 

  24. Sollars, E. S. et al. Nature 541, 212–216 (2017).

    Article  CAS  Google Scholar 

  25. Semizer-Cuming, D., Kjær, E. D. & Finkeldey, R. PloS ONE 12, e0186757 (2017).

    Article  Google Scholar 

  26. Koch, J. L. et al. Breeding strategies for the development of emerald ash borer-resistant North American ash. In Proc. 4th International Workshop on the Genetics of Host-Parasite Interactions in Forestry: Disease and Insect Resistance in Forest Trees General Technical Report PSW-GTR-240 (eds Sniezko, R. A. et al.) 235–239 (US Department of Agriculture Forest Service, Albany, 2012).

  27. Budde, K. B., Nielsen, L. R., Ravn, H. P. & Kjær, E. D. Curr. Forestry Rep. 2, 18–29 (2016).

    Article  Google Scholar 

  28. Kjær, E. D., McKinney, L. V., Nielsen, L. R., Hansen, L. N. & Hansen, J. K. Evol. Appl. 5, 219–228 (2012).

    Article  Google Scholar 

  29. Rigsby, C. M., Herms, D. A., Bonello, P. & Cipollini, D. J. Chem. Ecol. 42, 782–792 (2016).

    Article  CAS  Google Scholar 

  30. Lane, T. et al. BMC Genomics 17, 702 (2016).

    Article  Google Scholar 

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The authors thank I. Danilova (Research Scientist, Sukachev Institute of Forest of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation) for help with generating the distribution maps and A. D. Orlinski (Scientific Officer, European and Mediterranean Plant Protection Organization, Paris, France) for his critical remarks and suggestions. D.S.-C. was supported by the European Commission under the Forest and Nature for Society (FONASO) Erasmus Mundus Joint Doctorate Program. Y.N.B. was supported by the Russian Foundation for Basic Research (no. 17-04-01486a). E.D.K. was supported by the Villum Foundation grant (grant no. VKR023062).

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Correspondence to Devrim Semizer-Cuming or Claire G. Williams.

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Semizer-Cuming, D., Krutovsky, K.V., Baranchikov, Y.N. et al. Saving the world’s ash forests calls for international cooperation now. Nat Ecol Evol 3, 141–144 (2019).

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