State of Rosa acicularis L. coenopopulations in forest park zone of Ekaterinburg

The experiments revealed that the studied fragments of Rosa acicularis L. coenopopulation were normal and full-fledged with single-vertex ontogenetic spectra. They are able to form self-sustaining habitats for several generations and spread over a significant territory. Three periods and six ontogenetic states were distinguished in the ontogenesis of Rosa acicularis L. The age structure had three types of spectrum - left-sided, centered, and right-sided. The difference in the ontogenetic structure depends on influence of anthropogenic factor, ecological and coenotic conditions of rose habitats, and variations in climatic conditions. When analyzing the parameters of coenopopulations, we found that the best conditions for existence of Rosa acicularis L. were in the berry pine forest (FCP5) in the park named after Foresters of Russia and reed grass pine forest (FCP1) in Uktus forest park, where the habitats were characterized by high morphological indicators, numbers and high values of the pregenerative fraction.

Spatial-ontogenetic structure of Globularia bisnagarica L. (Plantaginaceae) cenopopulations

The results of studying the spatial-ontogenetic structure of five cenopopulations of Globularia bisnagarica L. on the territory of the Orenburg region and the Republic of Tatarstan are presented. Analysis of the age structure using the OntoParam program algorithm revealed the heterogeneity of ontogenetic spectra in most cenopopulations. Assessment of the parameters of average age, recovery index and ageing index showed that most cenopopulations are capable of self-restoration and maintenance of numerosity. Analysis of spatial structure taking into account the ontogenetic state of individuals showed that the spatial relationships between pregenerative and generative individuals is random in most cases, which indicates the absence of any pronounced interactions between plants from these age groups. In the cenopopulation from Severny district of the Orenburg region, there is a slight sparseness in the mutual arrangement of pregenerative and generative individuals, which may be due to the influence of intraspecific competition.

Dynamics of the ontogenetic structure Jurinea cyanoides (Asteraceae) coenopopulation in the Medvedskij Bor (Kirov region)

Data on the dynamics of the ontogenetic structure of one coenopopulation Jurinea cyanoides (L.) Reichenb.are presented for the period 2014–2019 due to environmental conditions. It is shown that the efficiency of the development of ecological space is the highest in terms of climate continentality and thermoclimatic factors, the lowest in termsof soil moisture and acidity, ombroclimatic aridity-humidity. The ontogenetic spectra are uniform over the years: the maximum fall on individuals of the juvenile, virginal and subsenile ontogenetic states, and the minimum is on the plants ofthe generative period in aggregate. According to the «delta-omega» classification, the studied coenopopulation undergoesdevelopment from young to transitional.

On the dynamics of the ontogenetic structure of Astragalus henningii (Stev.) Klok. cenopopulations. (steppe Trans-Volga region)

Data on the ontogenetic structure of natural cenopopulations of the rare species Astragalus henningii (Stev.)Klok. on the territory of the Samara steppe Trans-Volga region are presented. Ontogenetic spectra have been determinedfor 35 cenopopulations on the territory of natural monuments of regional significance in the Samara region (Koshkinskaya Balka, Balka Kladovaya, Kostinskye loga, Gryzly, Mulin dol). The basic ontogenetic spectrum of cenopopulationsis one-vertex right-modal, the absolute maximum in it is represented by old generative individuals (35.7 %). The ontogeny of the species is at least 20 years, the longest in terms of time are the mature generative – 6–9 years and the old generative – 5–8 years.

Affective-Semiotic Dynamics of the Transition to Motherhood in the Context of the COVID-19 Pandemic

The transition to motherhood is an important moment in the life course, in which symbolic interactive dynamics are established between self, other, and world to overcome developmental challenges. However, these challenges are intensified with the COVID-19 pandemic, which caused a radical and unexpected rupture in daily life. This article aims to analyze the affective-semiotic dynamics of Brazilian women who experienced the transition to motherhood during the COVID-19 pandemic from a qualitative multiple case study. Eight women participated in the study in the city of Salvador. Data were collected from two narrative interviews with each participant conducted through videoconference, with a 2-month interval between interviews. The main finding reveals that the emergence of the pandemic was described by the participants as an unexpected and significant rupture in the transition to motherhood that raised feelings of fear and anxiety. In addition, I–other relations were marked by intense ambivalence between the need for social support and the risk of contagion, and the perspective and experience of childbirth were marked by a feeling of insecurity in the relations with the health personnel and settings. In light of Semiotic Cultural Psychology, three interdependent affective-semiotic fields were highlighted from the narratives: the perception of oneself regulated by the sign of vulnerability, the other regulated by the sign of a potential threat, and healthcare provision regulated by the sign of risk. These findings highlight the importance of quality healthcare that helps women to reduce the disruptive impact of the pandemic on the ontogenetic structure of psychological organization.

Population biomorphological studies of Delphinium dictyocarpum DC. in Dzhungarskiy Alatau

This article presents the data of population-biomorphological studies of the larkspur (Delphinium dictyocarpum DC.) in the Dzhungarskiy Alatau. Purpose of the research isto study the distribution, phytocenotic confinement, biomorphology and structure of Delphinium dictyocarpum populations. The studies were carried out on the territory of the Dzhungarskiy Alatau ridge in 2015–2017. The structure of cenopopulations (CP) was studied in 2 plant communities (descriptions 1, 2). To study the density and ontogenetic structure of cenopopulations in communities transects were laid, divided into areas of 1 m2 in size. The type of cenopopulations was determined according to two classifications of B.A. Yurtseva (1987, 1988) and L.A. Zhukova (2013). When studying the biomorphology and structure of cenopopulations, we used the principles and methods adopted in modern plant population biology developed by L.A. Zhukova (2012) and “Program and methodology...” (1986). The study revealed that Delphinium dictyocarpum in the Dzhungarskiy Alatau grows at an altitude of 1600 to 3200 m above sea level, occupying the upper third or the summit of the high mountains. On the slopes the species is found along the outcrops of rocks and on stony-gravelly areas in the composition of shrub-forb-livebeet, cereal-forb meadows. The species composition of live bunch communities is represented by 125 species of vascular plants from 95 genera and 37 families. The height of the above-ground organs of Delphinium dictyocarpum ranged from 115 to 250 cm.

Population status and variation of the rare species Dactylorhiza viridis (L.) R. M. Bateman, Pridgeon & M. W. Chase (Orchidaceae) under anthropogenic load conditions in the meadow phytocenoses of the Central Caucasus

We studied the variation of morphological characters, ontogenetic structure and vitality of seven cenopopulations of Dactylorhiza viridis (L.) R. M. Bateman, Pridgeon & M. W. Chase within the Kabardino-Balkar Republic in 2015–2019. The studies were conducted in the meadow plant communities under different conditions of anthropogenic load (recreation and grazing). The species presents medium phytocenotic plasticity of morphological characters (I p=36–70%) and high variation of morphological characters (CVх–ср=18,55–45,22%) under changeable conditions of growth. The intensification of growth processes in the individuals with the maximum increase of the cenopopulation vitality (IVC = 1,12–1,18) is observed in the composition of undisturbed meadows. The portion of generative individuals is 44,8–52,6% in ontogenetic spectra, and the stable seed reproduction of cenopopulations is registered. Under the intensification of the anthropogenic load, the vitality of cenopopulations (IVC = 0,80–1,04) and the density of individuals (0,47–3,20 ind./m2) are decreased; the portion of generative individuals is increased in ontogenetic spectra (65,4–81,6%). The rate of the seed reproduction of cenopopulations, in which the density of individuals accounts for 28,47 ind./m2, is high on the rubbly substrata with low total projective cover.

The comparison of population structure and distribution of thalli Evernia prunastri (L.) Ach. along the trunk of Tilia cordata in a shaded floodplain lime-tree forest for 2008-2017

The research was carried out in shaded flooded lime-tree forest on the territory of the Mari El Republic. Population density, ontogenetic structure of populations and thalli vitality of E . prunastri were explored on 19 marked trees of heart-leaved linden on different tree trunk heights (0-0,5 m, 0,5-1 m, 1-1,5 m, 1,5-2 m) and on different expositions (north, east, south, west). For the period from 2008 to 2017 an increase in the population density of E . prunastri was founded. These differences appear at the trunk height of 1,5-2 m. Thalli were not founded at the height of 0-0,5 m. No changes in the distribution of thalli by exposure in different years were revealed. The most of E . prunastri thalli grow on the northern exposure. In 2017 in the population the specimens share of v₁, v₂ and g₂v of ontogenetic states increases and the specimens share of g₁v decreases. The average vitality of E . prunastri thalli decreases, the deterioration of vitality is more pronounced among individuals in g₁v-ss ontogenetic states. An increase in the population density, a decrease in the size of the E . prunastri thalli and Hypogymnia physodes , a rejuvenation of the ontogenetic structure of the E . prunastri thalli were shown earlier for the illuminated floodplain lime forest. Similar processes in different environmental conditions and in different species indicate regular changes in the populations of epiphytic lichens, which can be caused by climate warming.

Distribution of Тrifolium rubens in Ukraine and the current state of its populations in Zakarpattia

Trifolium rubens is a Central European forest-steppe plant species reaching its eastern distribution limit in Ukraine and listed in the Red Book of Ukraine (2009).Our study was carried out in 2016–2020 and aimed to analyze the distribution of T. rubens in Ukraine, to identify the composition of phytocoenoses with T. rubens, and to evaluate the current state of its populations in the Zakarpattia region of Ukraine. The distribution of this species was analyzed based on data obtained from the field surveys, literature, online resources, and herbaria. In total, 78 localities of T. rubens were analyzed. Trifolium rubens was found to be distributed in Zakarpattia, Lviv, Ivano-Frankivsk, Ternopil, Rivne, Khmelnytskyi, Chernivtsi, and Vinnytsia regions of Ukraine. Two of these regions (Khmelnytskyi and Chernivtsi) were not mentioned before in the Red Book of Ukraine. The presence of T. rubens in Volyn, Zhytomyr, Cherkasy, and Kyiv regions is doubtful and not confirmed by recent data. Most localities of this species are known from Zakarpattia and Lviv regions.Three new localities were found in the Beregovo district of the Zakarpattia region in the foothills of the Volcanic Carpathians. The floristic compositions of the plant communities and ontogenetic structure of T. rubens populations in Beregovo and Mukachevo districts of the Zakarpattia region were investigated. Investigated populations are isolated with a dispersed disposition of plants on large areas. Trifolium rubens occurs here in meadow-steppe and meadow areas, on hillsides, and also participate in mesoxerophilous secondary (semi-natural) shrub communities in anthropogenically transformed areas. Often such populations are situated along pathways, on forest edges and fallow lands, and associated with ecotones of Trifolio-Geranietea sanguinei class. All studied populations were incomplete with the domination of generative shoots.