Biogeographic analysis of historical forest insect invasions and host associations

Coordinator: Maartje Klapwijk, SLU,

Funding: 349 000 SEK

Duration: 2019–2021

""The field of biogeography has its roots in the 1960’s when theories were developed to explain large-scale variation in biological diversity. Much of this work focused on colonization of islands but additional work considered tree species, themselves, to function as islands, with greater herbivore diversity on tree species ranging across larger land areas. We plan to explore such biogeographical patterns relative to invasions. Specifically, we set out to study the diversity of both native and non-native insect herbivores that use different tree species in Europe and North America as hosts and explore the possible drivers of variation among tree species and among regions. We intend to test the hypotheses that both native and non-native species richness of tree herbivores are related to tree species range area and that native and non-native insect herbivore richness are correlated. We will also consider other characteristics of tree species (e.g., growth characteristics) as correlates of native and non-native herbivore diversity.


University of Helsinki; Päivi Lyytikäinen-Saarenmaa, Tuula Kantona and Micke Malm
Norwegian Institute of Bio-economy Research (NIBIO), Bjørn Økland
USDA Forestry Service Northern Research Station, Andrew (Sandy) Liebhold


Natural Resource Canada, Deepa Pureswaran
University of Washington, Seattle, USA, Angela Mech
University of Georgia, USA, Kamal Ghandi
Sukachev Institute of Forest SB RAS, Russia, Natalia Kirichenko


SNS-124 – Annual report 2019 (PDF)

Read more about the project in News & Views

Comments are closed.