The studies conducted allowed us to establish that representatives of pathogenic mycobiota, developing on trees as consumers, intensify the processes of degradation and disintegration of weakened and unstable forest ecosystems. Pathogenic fungi have a significant negative impact on the differentiation of trees in the forest, on the processes of seed and vegetative reproduction of tree species. A comparative analysis of heavy metal content at different trophic levels (consumers and decomposers) in forest ecosystems with the participation of representatives of mycobiota was carried out.
