Home – Home – Jornals – Contemporary Problems of Ecology 2018 number 6

The distribution and phytocenotic association of Parthenocissus vitacea and Vinca minor on the territory of the Bryansk region was studied, the assessment of these distributions was performed on a grid basis. Vinca minor is registered in 19 cells on the territory of the region, which is 4.9 % of the total number of cells and 11.9 % of the surveyed; Parthenocissus vitacea - in 50 cells, which is 12.8 % of the total number of cells and 31.2 % of the number surveyed. Invasive status of Parthenocissus vitacea and Vinca minor is Category 3: Adventive species whose invasions into natural and semi-natural habitats in the region are currently isolated and, as a rule, confined to the outskirts of populated areas, abandoned parks, old plantings. The indicator of successful invasion in forest communities is the formation of syntaxonomically valid variants of the communities of Corylo avellanae-Pinetum sylvestris Bulokhov et Solomeshch 2003 with impoverished cenoflora. Invasive species change the phytosphere, reliably decrease the indices of б and в diversity, structural indicators of the communities. The invasion of Parthenocissus vitacea and Vinca minor is successful due to active vegetative reproduction, allelopathic effects on native species, and decrease of the illumination of the ground cover. The introduction of invasive species into complex pine forests blocks demutational changes of endogenous succession in the restoration of broad-leaved forests: they simplify the structure of serial communities, extend the period of vectorized changes, and reduce the intensity of the mosaic. Parthenocissus vitacea and Vinca minor can exhibit signs of an edificator, a community builder, a violent and a transformer-type. The radical transformation of the natural community is a unique single case registered on the territory of the nature monument “Lubin Khutor” (Novozybkovsky district, Bryansk region).