Monitoring of secondary flowering of higher vascular plants of juniper-oak communities of “Cape Martyan” Nature Reserve

Abstract

The article summarizes the data of long-term phenological observations conducted in the juniper-oak communities of the Cape Martian Nature Reserve. The list of secondary flowering plants recorded in the period 1996-2021 is presented. The analysis of this group of species according to the complex of the main bioecological features is carried out. It was found that in the group of re-flowering species of the analyzed period, the main patterns revealed earlier in the years with mass re-flowering were preserved: polycarpic grasses dominated the main biomorph, late spring-early summer and late spring-mid-summer species dominated the rhythm of normal flowering, xeromesophytes and mesoxerophytes dominated the water regime. The arealogical structure was dominated by species with transitional types of habitat: East Mediterranean, Crimean Caucasian, European Mediterranean, as well as European-Mediterranean-Near Asian. It is shown that the majority of re-flowering species are characterized by the types of both extended and present secondary flowering, and the main trend during the analyzed period is a change in their ratio in favor of extended. This indicates the dependence of the studied phenological phenomenon on the variability of hydrothermal conditions, for a multifactorial assessment of which specialized work is needed.