Can a species confined to primeval-like forests reach fragments of habitat in a managed landscape?

The Swedish government has taken initiatives to intensify the conservational work at landscape scale. That is, to analyse different needs for biodiversity, and together with different actors, for example the forestry sector, find ways for long time conservation of the biodiversity. Old growth, moist spruce forests constitute an important habitat for a substantial part of the species belonging to the taiga. One of them is the saproxylic beetle Pytho kolwensis, in Sweden considered as endangered. The larvae feed on cambium on newly fallen spruces for about five years. After 10-15 years the log can no longer provide food for the larvae and the adult beetles have to lay eggs in other spruce log…