Central European pests are migrating northward
A sudden increase in abundance
Results went beyond the expected
With pheromone trapping the northernmost nun moth individuals so far were found, and more importantly, it was confirmed that the species is present throughout Central and Southern Finland.
At many sites, the abundance indicated the presence of a locally reproducing viable population; one that is happily feeding and breeding (for more information see the open access research article Melin et al. (2020), where more details on the results and the used methodology are outlined). The northernmost catches were made up of only lonely males. These kinds of wind riders are typical for the species: after a successful copulation, male nun moths have a few more weeks to live.标签：