Data from: How differential management strategies affect Ips typographus L. dispersal

Bark beetle outbreaks have a devastating effect on economically important
forests worldwide, thus requiring extensive application of management
control strategies. The presence of unmanaged protected areas in close
proximity to managed forests can instigate concerns that bark beetle
infestations may spread from unmanaged into managed stands. We studied the
impact of differential management of forest stands on the dispersal
dynamics of the European spruce bark beetle, Ips typographus, making use
of inferential population genetics on mitochondrial and nuclear genomes.
Bayesian inferences of migration rates and a most parsimonious dispersal
tree show that outgoing gene flow was consistently higher from managed to
unmanaged areas. Reason for that is likely the thorough removal of
potential breeding material in managed forests and thus the dispersal of
the base stock beetles from these areas to unmanaged areas where breeding
material is available. Our study suggests that the potential threat posed
by unmanaged to managed forests in regard to I. typographus infestation
needs to be carefully re-considered.