Basic approaches to determining stability of rare plant species populations

Біологічні студії

I. M. Kovalenko¹  H. O. Klymenko¹ 

[1] Sumy National Agrarian University, Ukraine;

关键词: MVP method;    PVA method;    rare plants;    populations;    stability;    dynamics;   

DOI  :  10.30970/sbi.1002.478

来源: DOAJ

【 摘 要 】

The results of approbation of three methods of an estimation of stability and probable development trends of populations on the example of rare plant species of National natural park „Desnyansko-Starogutsky” are presented. The study objects were three rare plant species of NNPDS listed in the third edition of the Red Data Book of Ukraine: Eрipactis helleborine (L.) Crantz (the population occurs in the phytocoenosis Querceto-Pinetum coryloso (avellanae)-caricosum (ericetorum), Listera ovatа (L.) R. Br. (in the phytocoenosis Betuleto-Pinetum coryloso (avellanae)-stellariosum (holosteae) and Platanthera chlorantha (Cust.) Rchb. (sporadically spread throughout the woodlands in National Nature Park “Desniansko-Starogutsky”, in Querceto-Pinetum coryloso (avella­nae)-caricosum (ericetorum). It is established that MVP and the analysis of populations structuremethods do not give a trustworthy information about the real development trends in local populations, particularly if in disposal of researcher dataonly for one or for 2–3 years of observations are available. PVA is a highly effective method that enables to assess stability of plant populations on a complex of individuals features in the population and population characteristics as a biological integrity. Thus, three me­thods revealed the likelyhood of degradation of E. helleborine and L. ovata local populations and relatively higher stability of local population of P. chlorantha. The organization of long-term monitoring of local populations of rare plant species is recommended on all protected areas.

【 授权许可】

Unknown