The monitoring of moth densities on our 15 regular monitoring sites in coastal Troms is almost complete. While many places still have severe outbreaks of the winter moth, the autumnal moth populations have crashed in most places.
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Field work
Album
The larvae are the feeding stages of the moths. They are active in spring and early summer, and are responsible for the defoliation caused during moth outbreaks. This gallery shows larvae of our moth study species.
32 Photos
Moths are attacked by many types of natural enemies. This gallery shows enemy groups which are focal to our research, namely parasitoids, passerine birds and harvestmen.
28 Photos
Adult moths are active at night during the autumn, when they mate and lay their eggs. This gallery shows adults of our moth study species.
13 Photos
This gallery illustrates some of our field activities.
22 Photos
The mountain birch is the dominant tree species in Northern Fennoscandia. Moth outbreaks can cause dramatic changes to the mountain birch forest, causing mortality of birch and other vegetation across vast areas. These changes are illustrated in this gallery.
35 Photos
Aerial surveys are used to document the distribution of severe moth outbreaks. This gallery shows examples of aerial photographs of forest defoliation caused by outbreaks.
7 Photos
