Invasive plant species in natural ecotopes of the city of Ivanovo

Invasive plant species in the natural communities of the city of Ivanovo are discussed in the article. Based on the conducted field studies of various types of natural ecotopes in 2019-2022, 65 species of alien plants belonging to 54 genera and 23 families were noted in Ivanovo. To assess the activity of invasive species, a technique was used with the allocation of 4 invasive statuses. It was found that among the natural ecotopes of Ivanovo, coastal aquatic habitats and coniferous and small-leaved forests turned out to be the most vulnerable. Less invasive are mixed-grass pine forests, grassy birch forests and thickets of shrubs. The most resistant communities to the introduction of invasive species turned out to be swampy meadows, reservoirs and the preserved sphagnum swamp. It is noted that 16 invasive plant species were found in only one type of natural ecotopes in Ivanovo, 14 species in two types of natural ecotopes, and 35 species in 3 or more types. In accordance with the invasive status, alien species In the territory of the city of Ivanovo invasive plant species are distributed as follows: status 1 (transformers) - 9 species; status 2 - 23 species; status 3 - 4 species, status 4 (potentially invasive) - 28 species. The biomorphological structure of the invasive component is characterized by dominance shrubs (17 species) among woody plants, and perennial herbaceous plants represented by 18 species.