Mechy na uměleckých objektech ve veřejném prostoru vybraných středomoravských měst

Mosses are an integral but neglected part of vegetation in the urban environment. However, studies of the bryoflora on art objects in the public space are scarce. We therefore focused on the composition and environmental determinants of the bryoflora of art objects in the public space of three central Moravian cities (Olomouc, Přerov and Prostějov). The art objects are mainly connected with the period from the end of the Second World War to 1989, that is, with the time that most enriched the cities of former Czechoslovakia with art in the public space. The works of art are perceived from a natural scientific point of view, and they are seen as secondary habitats colonized by mosses. We proved the presence of mosses on 30% of the objects. The most common species were Tortula muralis, Orthotrichum diaphanum and Bryum argenteum. Among rarer species, the occurrence of Orthotrichum striatum, Schistidium confusum and Syntrichia latifolia has been reported. We discussed the colonization potential of mosses and their role in the colonization process, together with the environmental conditions that had a significant effect on species composition. Light conditions were identified as the only significant environmental factor affecting the bryoflora on the art objects examined.