Umeå universitets logga

Modern European forestry in the recent century has made a heavy impact on forest biodiversity from an increased industrial scale of harvesting and planting for timber products. Resulting in a scarcity of deadwood across Europe. The lack of deadwood results in negative impact on saproxylic species that are either dependent or semi-dependent upon deadwood. This thesis uses data collected in 2012 from saproxylic beetles captured from an SLU experimental forestry study of deadwood placement in three different environments: 1) clear-cut, 2) old-managed forests, and 3) old-growth. Specifically on the effect of birch log placements within these environments that had been burned artificially and non-burned control logs. Since the main method of forestry in Sweden is from clear-cutting and plantation of coniferous trees (Pine and Spruce) that has a substantial landscape-scale effect on deciduous dependent species. Methods conducted in this thesis are Two-Ways ANOVAs for abundance, Species richness, Functional feeding groups, redlist species, and species composition with Non-metric Multi-Dimensional Scaling (NMDS), Bray-Curtis index, and Shannon index for evenness and diversity of the environments. The results showed a surprising amount of red-listed species in the clear-cut environment. This could be arguedeither clear cut are pseudo-acting forest disturbances in the landscape, or there is a timelagging effect of species extinction for these species found in Clear-cuts. All sites are within 10km vicinity of an old growth site that is meaningful for recruitment and nurseries for the species. The treatment itself had no statistical significance but the placement of logs in the environment had a significant effect.