Influence of invasive flora species on the ecosystem of the Russian Far East
Abstract For the first time, based on the revision of herbarium collections, the resettlement of alien flora faction species in the Far Eastern Federal District (FEFD) was divided into four stages. Of the 117 invasive species of the Far Eastern Federal District, 47 ones were registered for the first time before the construction of the Trans Siberian railway, i.e. at the turn of the 1900s, 30 - from 1900 to World War II, 29 - from 1940 to 1980, i.e. before the targeted study of the alien flora faction, and 11 - from 1980 to the present. The data on scientists who played a key role in the study of the flora of the Far Eastern Federal District is presented. Seven species are only beginning to invade natural plant communities, 88 species are actively invading natural plant communities and 22 species belong to the “transformers”, which actively invade themselves into natural and seminatural communities, change the physiognomy of ecosystems, disrupt succession links, forming large single-species dense stands and force out and (or) obstruct the reproduction of aborigine species.