Our Swedish forests have always been under the exposure of fire, more or less. The historical influence of fires, have made some species bound to these habitats or temporarily using them. Among these species, beetles (Coleoptera) are numerous. One of the tree species with the most historic influence of fire as well as inhabiting a great beetle-fauna is the oak (Quercus sp.). An area with an especially rich beetle-fauna tied to the oak and a extensive history of fire is the Hornsö-area in Smaland. 

The purpose of this study is to investigate how the beetle-fauna and number of individuals differs between newly dead oaks in burnt areas and outside them, in the Hornsö area. The two studied families was long-horn beetles (Cerambycidae) and bark beetles (Scolytinae). The beetles were reared from hatching boxes. The study aims to fil in knowledge gaps about which species that are pyrophilous respectively fire-favoured. In the future this could contribute to a better knowledge about how to manage the oakforests and it`s associated species.

The results shows that bark beetles are more numerous on burned oaks, that have died recently where the fire have been limited to the ground. It also seems like bark beetles are more numerous on smaller diameter trees. Future studies should focus on studying wood a wider range of diameters as well as more trees and samples. A longer time for rearing the insects would also be desirable.