Composition of forest communities with invasive alien Amelanchier spicata (Lam.) K. Koch) in Lithuanian forests

Abstract

The aim of this study was to determine the most characterizing species of communities with Amelanchier spicata. It was found that forest communities with this invasive alien species were rich of plant species, but majority of that species were not typical for forest ecosystems. The most common species of undergrowth, which was found in 80% investigated plots - Quercus robur. The most common shrub species, which were found in more than 50% plots – Corylus avelana, Sorbus aucuparia, Padus avium. The most common grass species were Rubus idaeus, Vaccinium myrtillus, Fragaria vesca, Luzula pilosa, Maianthemum bifolium, Pteridium aquilinum. Moss species - Hylocomium splendens (investigated in more than 42% investigated plots) and Pleurozium schreberi, which were spread in 88% investigated plots. In forests with Amelanchier spicata is formed unique species composition and structure.