ценопопуляция

Some results of variation between population Delphinium pubiflorum (DC.) Turcz. ex Huth in Saratov region

Authors: Ermolaeva N. N., Kashin A. S., Petrova N. A., Shilova I. V.

Оценена межпопуляционная изменчивость растений трех ценопопуляций (ЦП) D. pubiflorum из Красноармейского, Хвалынского и Татищевского р-нов Саратовской обл. Они произрастают в довольно богатых во флористическом отношении травянисто-кустарниковых сообществах, значительно различающихся по видовому составу. Увлажнение в ЦП соответствует лугово-степному или сухо-луговому, умеренно-переменному.

Vitality state cenopopulations of Hypericum perforatum in Saratov region

Authors: Parkhomenko V. M., Kashin A. S.

In this article authors write about the vital structure ofpopulations H. perforatum in the Saratov region. According to vitality of investigated cenopopulations most of them belong to prosperous type. Vitality of cenopopulations is retrogressing in the following range habitats: anthropogenic transformed - forest glades and forest edges - steppe -forest. On vital status of individuals influence weather conditions. The maximum decline in vitality occurred in populations of steppe habitats, and the minimum - on abandoned arable land, surrounded by forest plantations.

Ontogenesis and structure of tsenopopulation of the yarrow noble (Achillea nobilis L.) in the conditions of the Saratov region

Authors: Bulanaya M. V., Reshetnikova T. B.

Are submitted data on research of an ontogenesis and structure of a tsenopop- ulyation of Achillea nobilis L. in the conditions of the Saratov region.

The status of the population Adonis wolgensis in the Saratov region

Authors: Ermolaeva N. N., Shilova I. V., Petrova N. A., Kondrateva (Popova) A. O.

Studied two cenopopulation Adonis wolgensis Stev. ex DC. from Marx and Pug-achev districts of the Saratov region. The measured morphological characteristics of the individuals, defined: variability, spatial structure and ontogenetic range of populations, type of populations on the criterion of «Δ – ω».