Composition of poplar tree lichen Phythocenosis formed under urban conditions of Perm and outside the city

A comparative analysis of epiphytic lichen communities on poplar trunks growing in Perm and in rural areas has been carried out. The tendency to a decrease in the occurrence and abundance of lichens in the city, compared with rural areas. With a high similarity of the species composition of epiphytic groups in the city, changes in the structure of lichen communities were observed, resulting in a change of dominants and the disappearance of sensitive species.