Velikanov A., Skirina I.
7th Symposium of International Association for Lichenology: Book of Abstracts Год: 2012 Страницы: 36A study of lichen communities was carried out in humid boreal conifer forests on Pacific coast of Northeast Asia. The main goal was to describe the structure of lichen communities and to reveal their relationships to ecological factors. Three most common conifer tree species in the region were chosen for lichen sampling: Picea jezoensis, Abies nephrolepis and Pinus koraiensis. 85 study plots were established on trunks of these trees in two main locations representing intact oldgrowth forest ecosystems. Species composition and a relative cover of each species were recorded for each plot. A total of 90 lichen species were identified. Using Ward’s cluster analysis we defined 9 main lichen synusiae. Using statistical analytic tools we assessed the relationships between lichen communities and various environmental conditions, including large-scale factors (like geographic location and climate), mid-scale (forest type, relief) and small-scale factors (bark morphology, trunk aspect, height of the plot above ground). Large-scale factors proofed to have the most of the influence on community composition, while some more local conditions showed a facultative influence, if any. Lichen species were also compared for coenotic activity (ability to dominate the communities) and frequency. Graphis scripta, Menegazzia terebrata and Parmelia squarrosa appeared to be the leading species in both aspects.
