Russian Federation
The results of studying the invasiveness of adventive plants in segetal ecosystems of the Donetsk physical-geographical region are presented. It was found that most of the segetal plant species are adventive. More than 54% of species are included outside the desire of man. Introduced, and then feral, there were 38,8%, another 6,6 % spread doth from culture and spontaneously. By the degree of naturalization, epecophytes prevail, and by the time of introduction - kenophytes. The most common types of American (68) and Mediterranean (36) origin. The core of the adventive fraction of the flora is comprised of invasive species, which have actively and massively spread throughout the region.
segetal ecosystems, native species, adventive plants, invasions
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