Size and efficiency of Scots pine (Pinus sylvestris L.) assimilation apparatus ; Variability of selcted features of mactostructure and density of spruce wood from commercial stands and post-minig areas ; Assessing the possibility for the compensation of the volume of trees removed from the strip-roads by the compensation of the volume of trees removed of tourist in the Krynki Forest Districts, Temporal patterns of moose-train collisions in British Columbia - implications for mitigation ; Impact of the forest cover change on the degree of fragmentation of the Insko Lakeland forests in the 20th century.
