scholarly journals Bio-ecological features of some rare plants fruits in the Samara Region

2017 ◽  
Vol 6 (1) ◽  
pp. 41-46
Author(s):  
Mariya Gennadevna Kotelnikova
Keyword(s):  
Plant Species ◽  
Fruit Size ◽  
Significant Proportion ◽  
Rare Plants ◽  
Anthropogenic Factors ◽  
Population Groups ◽  
Fruit Length ◽  
Ecological Features ◽  
Rare And Endangered ◽  
The Difference

The paper presents some preliminary results of the monitoring of Fritillaria meleagroides Partin ex Schult. et Schult. fil. and Tulipa biebersteiniana Schult. et Schult. fil. plants (category of rare and endangered plant species). The results of the field study fulfilled in 2012-2016 in two population groups of quarter 80 and cenopopulation of quarter 69 in the Krasnosamarsky forestry (Samara Region) were used to determine morphometric parameters of plant species. The data also helped us to assess the variability level and to make a comparison with plant quantitative traits given in the literature. It has been found that the sample indicators fit into the range of values specified in literature sources, with a significant proportion of large fruit 2,0-3,0 cm in length. The dynamics of the fruit size of Fritillaria meleagroides Partin ex Schult. et Schult. fil. and Tulipa biebersteiniana Schult. et Schult. fil. plants in population groups of quarter 80, as a whole, has general patterns in the difference during some seasons of vegetation. Prevailing values of fruit length of plants in cenopopulations of quarter 69 changed slightly according to year of vegetation, these populations are more resistant and numerous comparing with the populations of quarter 80. As for variability of signs, the values of fruit length and width coefficients of variation does not exceed 25% for Fritillaria meleagroides Partin ex Schult. et Schult. fil. plants and 20% for Tulipa biebersteiniana Schult. et Schult. fil. plants which is optimal for this type of indicators and is consistent with the bioecological specificity of fruit plant. The conditions of ecosystems in 69 and 80 quarters of Krasnosamarsky forestry are favorable for the vegetation of two species plants, the successful preservation and restoration in natural communities can be in the absence of anthropogenic factors limits.

scholarly journals Preliminary results of the monitoring bio-ecological features of plants Fritillaria ruthenica Wikstr. in the model forest habitats of the Krasnosamarsky forest

2016 ◽  
Vol 5 (2) ◽  
pp. 33-38
Author(s):  
Mariya Gennadevna Kotelnikova
Keyword(s):  
Significant Proportion ◽  
Plant Conservation ◽  
Growth Conditions ◽  
Shoot Length ◽  
Anthropogenic Factors ◽  
Good Growth ◽  
General Description ◽  
Science Literature ◽  
Preliminary Results ◽  
Ecological Features

The article presents some preliminary results of the monitoring of Fritillaria ruthenica Wikstr. plants (category of rare and endangered plant species, included in the Red Books of Russia and Samara Region). By summarizing the available sources of science literature we have compiled a general description of morphological and bio-ecological species characteristics. The results of the field study fulfilled in 2012-2014 in Krasnosamarsky forestry (Samara region) were used to determine morphometric parameters of Fritillaria ruthenica plants. The data also helped us to assess the variability level and to make a comparison with plant quantitative traits given in the literature. It was found that the shoot length of Fritillaria ruthenica plants from model biotope in Krasnosamarsky forest in 2012-2014 varied in the range of 20 ... 70 cm, in 2012 and 2013 individuals with long shoots about 50 cm dominated, in 2014 - with shoot length about 50 and 60 cm. The feature of the shoot length is characterized by plasticity, the highest level of variation was observed in 2013. The lengths of shoots are inside the range specified for the various parts of the area in the literature with a significant proportion of tall plants in the studied population. This may be a sign of good growth conditions for Fritillaria ruthenica that gives an opportunity to the plant conservation in natural communities in the absence of limited anthropogenic factors.

scholarly journals Rare species perform worse than common species under changed climate

2019 ◽  
Author(s):  
Hugo Vincent ◽  
Christophe N. Bornand ◽  
Anne Kempel ◽  
Markus Fischer
Keyword(s):  
Climate Change ◽  
Plant Species ◽  
Rare Species ◽  
Botanical Garden ◽  
Common Species ◽  
Climatic Conditions ◽  
Future Climate Change ◽  
Natural Habitats ◽  
Rare And Endangered ◽  
The Difference

AbstractPredicting how species, particularly rare and endangered ones, will react to climate change is a major current challenge in ecology. Rare species are expected to have a narrower niche width than common species. However, we know little whether they are also less able to cope with new climatic conditions. To simulate climate change, we transplanted 35 plant species varying in rarity to five botanical gardens in Switzerland, differing in altitude. For each species we calculated the difference in climate between their natural habitats and the novel climate of the respective botanical garden. We found that rare species had generally lower survival and biomass production than common species. Moreover, rare plant species survived less when the amount of precipitation differed more from the one in their natural range, indicating a higher susceptibility to climate change. Common species, in contrast, survived equally well under all climates and even increased their biomass under wetter or drier conditions. Our study shows that rarer species are less able to cope with changes in climate compared to more widespread ones, which might even benefit from these changes. This indicates that already rare and endangered plant species might suffer strongly from future climate change.

scholarly journals The assessment of bio-ecological features of plants Tulipa biebersteiniana Schult. et Schult. fil. in the model forest habitats of the Krasnosamarsky forest

2016 ◽  
Vol 5 (3) ◽  
pp. 30-35
Author(s):  
Mariya Gennadevna Kotelnikova
Keyword(s):  
Average Length ◽  
Significant Proportion ◽  
Plant Conservation ◽  
Population Group ◽  
Shoot Length ◽  
Anthropogenic Factors ◽  
Good Growth ◽  
General Description ◽  
Science Literature ◽  
Ecological Features

The paper presents some preliminary results of the monitoring of Tulipa biebersteiniana Schult. et Schult. fil. plants (category of rare and endangered plant species). By summarizing the available sources of science literature we have compiled a general description of morphological and bio-ecological species characteristics. The results of the field study fulfilled in 2012-2015 in two population groups of the Krasnosamarsky forestry (Samara region) were used to determine morphometric parameters of Tulipa biebersteiniana plants. The data also helped us to assess the variability level and to make a comparison with plant quantitative traits given in the literature. It was found that the shoot length of Tulipa biebersteiniana plants varied in the range of 23 50 cm, the maximum average length of 40 cm are presented in plants of population group number two. The distribution of shoot length among individuals of the second population group is more stable, changes depending on the year of vegetation are poorly expressed. The lengths of shoots inside the range specified for the various parts of the area in the literature with a significant proportion of high plants in the population is studied. This may be a sign of good growth conditions for Fritillaria ruthenica that gives an opportunity to the plant conservation in natural communities in the absence of limiting anthropogenic factors.

MOSAICITY OF THE VEGETATION COVER OF THE KOCHUBEY BIOSPHERE STATION PASTURES

1970 ◽  
pp. 40-42
Author(s):  
М. А. Babaeva ◽  
S. V. Osipova
Keyword(s):  
Plant Species ◽  
Vegetation Cover ◽  
Cynodon Dactylon ◽  
Plant Cover ◽  
Avena Fatua ◽  
Living Environment ◽  
Anthropogenic Factors ◽  
Indigenous Species ◽  
Fodder Plants ◽  
Falcaria Vulgaris

The regularities of changes in the resistance of different groups of fodder plants to adverse conditions were studied. This is due to the physiological properties that allow them to overcome the harmful effects of the environment. As a result of research species - plant groups with great adaptive potential to the harsh continental semi-desert conditions were identified. Monitoring observation and experimental studies showed too thin vegetation cover as a mosaic, consisting of perennial xerophytic herbs and semishrubs, sod grasses, saltwort and wormwood, as well as ephemera and ephemeroids under the same environmental conditions, depending on various climatic and anthropogenic factors. This is due to the inability or instability of plant species to aggressive living environment. It results in horizontal heterogeneity of the grass stand, division into smaller structures, and mosaic in the vegetation cover of the Kochubey biosphere station. The relative resistance to moderate stress was identified in the following species from fodder plants Agropyron cristatum, A. desertorum, Festuca valesiaca, Cynodon dactylon, Avena fatua; as for strong increasing their abundance these are poorly eaten plant species Artemisia taurica, Atriplex tatarica, Falcaria vulgaris, Veronica arvensis, Arabidopsis thaliana and other. On the site with an increasing pressure in the herbage of phytocenoses the number of xerophytes of ruderal species increases and the spatial structure of the vegetation cover is simplified. In plant communities indigenous species are replaced by adventive plant species. The mosaic of the plant cover of phytocenoses arises due to the uneven distribution in the space of environmental formation, i.e. an edificatory: Salsola orientalis, S. dendroides, Avena fatua, Cynodon dactylon, Artemisia taurica, A. lercheanum, Xanthium spinosum, Carex pachystyli, under which the remaining components of the community adapt. Based on the phytocenotic indicators of pasture phytocenoses it can be concluded that the vegetation cover is in the stage of ecological stress and a decrease in the share of fodder crops and an increase in the number of herbs indicates this fact.

scholarly journals Allochthonous plant species in the vegetation of the Great War Island

2020 ◽  
Vol 29 (2) ◽  
pp. 111-155
Author(s):  
Snežana Jarić ◽  
Zorana Mataruga ◽  
Dimitrije Sekulić ◽  
Marija Pavlović ◽  
Dragana Pavlović ◽  
...  
Keyword(s):  
Plant Species ◽  
Control Measures ◽  
Anthropogenic Factors ◽  
Great War ◽  
Natural Reserve ◽  
Allochthonous Species ◽  
The Status ◽  
Geographical Position ◽  
Biological Spectrum ◽  
The Great War

The main aim of the conducted research was to determine the presence of allochthonous plants in the area of the protected natural reserve - The Great War Island. The research was conducted during the vegetation season of 2020. Thirty four allochthonous plant species were recorded and classified into 19 families. Asteraceae (8 species), Fabaceae Poaceae and Sapindaceae (3 species each) had the highest species diversity. Phytogeographic analysis of their primary distribution areas has shown that most belong to the category of floral elements of the "adventitious" areal type. The chorological spectrum is dominated by species of North American origin (58.8%), while in the biological spectrum the most common are therophytes (38.2%). Chronological spectrum analysis has shown the highest prevalence of neophytes (64.7%). Seventeen species have the status of invasive, 16 naturalized, while one species (Morus alba) is characterized as ephemerophyte. The most frequent neophytes on the Great War Island are Acer negundo, Ailanthus altissima, Amorpha fruticosa, Fraxinus pennsylvanica, while among neotophytes, Echinocystis lobata and Symphyotrichum lanceolatus stand out in terms of frequency of occurrence. The geographical position of the Great War Island, due to which it is exposed to periodic floods, high levels of groundwater, strong influence of anthropogenic factors and the biological characteristics of allochthonous species are the main factors enabling them to inhabit this area. Results of this research should be the basis for the development of a strategy for monitoring the condition and planning control measures for the unwanted plant species, in order to protect the indigenous flora. Only careful and responsible management of landscapes of outstanding features such as The Great War Island and taking appropriate preventive measures can prevent the settlement, domestification and further spread of allochthonous plants.

scholarly journals Physico-chemical characteristics of pomegranate accessions from the Kurdistan region, Iraq

2018 ◽  
Vol 63 (4) ◽  
pp. 355-366
Author(s):  
Saadatian Mohammad ◽  
Paiza Abdurahman ◽  
Kanar Salim ◽  
Pershang Younis ◽  
Hewen Abdurahman ◽  
...  
Keyword(s):  
Fruit Size ◽  
Chemical Properties ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Kurdistan Region ◽  
Fresh Weight ◽  
Fruit Length ◽  
Physico Chemical ◽  
Fruit Diameter

Some physico-chemical properties of ten pomegranate accessions collected from different districts in the Kurdistan region of Iraq were investigated in this paper. Considerable correlations between the characteristics studied were found and valuable pomological traits were observed. Cluster analysis showed the homonyms between some pomegranate accessions. Principle component analysis reported that the component describing the greatest variability also positively correlated with fruit weight, total aril weight, total peel weight, volume of juice, total soluble solids (TSS), fruit length, fruit diameter, pH, aril length, and 100-seed fresh weight, but negatively correlated with titratable acidity (TA). Fruit weight was firmly correlated with total aril weight, total peel weight, volume of juice, TSS, aril length, 100-seed fresh weight, fruit length and fruit diameter. The volume of juice was correlated with TSS, aril length, 100-seed fresh weight, fruit length, fruit diameter and it was observed that with an increase in the fruit size, the volume of juice increased as well. The correlation between total phenolic compounds and antioxidant capacity was not observed. The associations found among physical and chemical traits suggest that consumers should use large fruits with large arils so that they have more juice. Thus, ?Choman?, ?Raniyeh? and ?Halabja? were juicier than other accessions.

scholarly journals MONITORING POPULATION ORHIDACEAE RARELY PLANTS COMMUNITY THE SUBURBS V. SEMIPOLKY

2017 ◽  
Vol 73 (1) ◽  
pp. 48-53
Author(s):  
V. Korchevska ◽  
O. Voytsekhivska
Keyword(s):  
Age Structure ◽  
Abiotic Factors ◽  
Rare Plants ◽  
Anthropogenic Factors ◽  
Species Loss ◽  
Optimal Conditions ◽  
Adaptive Potential ◽  
Structure Monitoring ◽  
Anacamptis Palustris ◽  
Loss Of Strength

It is analyzed the population dynamics, vitality and age structure of populations of individuals of 4 rare plants of Orshidaceae family – Anacamptis palustris (Jacg.) R.M. Bateman, Dactylorhiza maculate (L.) Soό, Dactulorhiza traunsteineri (Saut. Ex Reichenb.) Soό, Dactylorhiza incarnate (L). Soό in the article. The population age structure monitoring found that the most stable is the population of Anacamptis palustris species (loss of strength 20.5 %, the population is in a mature state of 2012.), the most volatile one is Dactylorhiza maculata (loss of strength 44.6 %, permanent change of age structure). The effects of natural abiotic factors (temperature, rainfall) did not significantly affect to the population structure, while the effects of anthropogenic factors led to population depression. In population of Dactulorhiza traunsteineri and Dactylorhiza maculata it is observed the prevalence of low vitality class individuals', which indicates the presence of population adaptive potential. The primary condition for the preservation of population of Orchidaceae family is the creation of optimal conditions for their growth, the reduction of the anthropogenic load and provision to the studied areas the reservation status.

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