Age structure and density of populations of Symphytum cordatum Waldst. et Kit. ex Willd. in the Ukrainian Carpathians and on the adjacent lowland territories
Institute of Ecology of the Carpathians of NAS of Ukraine
4, Kozelnytska St., Lviv 79026, Ukraine
The article deals with the study of age structure and density of populations of subendemic Carpathian species Symphytum cordatum in various ecological conditions in the Ukrainian Carpathians and on the adjacent lowland territories, including north-eastern and upper limits of the species distribution. The age spectra of populations of S. cordatum are built. The density of vegetative and generative modules is defined. Factors which have the biggest influence on these characteristics of S. cordatum are established.
Keywords: Symphytum cordatum, age structure, density, ecological conditions