Naturalization of alien plant species in secondary habitat conditions is one of the important areas of research for the conservation of species diversity. Invasive species and transforming species deserve special attention. Research of the population of Quercus ilex L. in various ecological and cenotic conditions of the «Cape Martyan» Specially Protected Natural Area was carried out according to modern, generally accepted methods and approaches. The characteristics of communities with Q. ilex is given. It has been revealed that over the past 30 years the number of individuals of the species has increased.
O.N. Reznikov, N.A. Bagrikova