scholarly journals Population biomorphological studies of Delphinium dictyocarpum DC. in Dzhungarskiy Alatau

2021 ◽  
Vol 102 (2) ◽  
pp. 63-69
Author(s):  
Nurzipa Saparbayeva ◽  
Keyword(s):  
Species Composition ◽  
Sea Level ◽  
Plant Communities ◽  
Vascular Plants ◽  
Population Biology ◽  
Plant Population ◽  
High Mountains ◽  
Ontogenetic Structure ◽  
Upper Third

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.

scholarly journals Flora and vegetation of the Minusinsk town and its vicinity

2019 ◽  
Vol 16 ◽  
pp. 00016
Author(s):  
Maria Larina ◽  
Olga Zyryanova
Keyword(s):  
Species Composition ◽  
Plant Communities ◽  
Vascular Plants ◽  
Dominant Species ◽  
Pine Forests

The article demonstrates the results of studies about species composition of lichens, fungi, mosses and higher vascular plants found in the ribbon pine forests in the Minusinsk town and its vicinity. The article based on the original authors’ herbaria. 62 basidial macromycetes, 80 lichens and 210 species of the higher vascular plants were found in the studied area. The plant communities and their dominant species were studied.

scholarly journals Current state of vegetation non-forest valley of the River Turia (Transcarpathian region)

2014 ◽  
pp. 308-323
Author(s):  
Ya. Sanislo-Pekar ◽  
G. Budnikov
Keyword(s):  
Key Words ◽  
Sea Level ◽  
Plant Communities ◽  
Rare Species ◽  
Vascular Plants ◽  
Current State ◽  
Meadow Communities ◽  
Floristic Classification

Distribution and composition of plant communities of meadows of the river Turja valley in highaltitude range from 150 to 800 m above sea level are presented in the article. According to the floristic classification 53 associations that belong to 13 unions, 7 orders and 4 classes are found out, described, identified and mapped. In the course of the flora studies 375 species of vascular plants, mosses and lichenes are found out. Key words: khorology, meadow communities, river Turja valley, management of meadows, rare species.

scholarly journals Mikroskopijne grzyby pasożytnicze w zbiorowiskach roślinnych Wyżyny Częstochowskiej [Phytoparasitic micromycetes in plant communities of the Wyżyna Częstochowska Upland]

2015 ◽  
Vol 96 ◽  
pp. 1-144
Author(s):  
Małgorzata Ruszkiewicz-Michalska
Keyword(s):  
Species Richness ◽  
Species Composition ◽  
Plant Communities ◽  
Vascular Plants ◽  
Host Plants ◽  
Fungal Species ◽  
Anamorphic Fungi ◽  
Permanent Plots ◽  
Biotic Factors ◽  
Beech Forests

Mycosociological studies on microfungi parasitising vascular plants were carried out on 21 permanent observation plots in 5 phytocoenoses representing beech forests (<em>Luzulo pilosae-Fagetum</em>, <em>Melico-Fagetum</em>, <em>Dentario enneaphyllidis-Fagetum</em>,  <em>Carici-Fagetum</em>)  and  xerothermic  grassland  (<em>Origano-Brachypodietum  pinnati</em>)  as  well as using route  method in other  plant communities.  The frequency  of host  plants and fungi  occurring on  permanent plots was estimated using 5-degree scale. The observations yielded in 478 fungal species belonging to <em>Peronosporales </em>(<em>Oomycota</em>), <em>Dothideales</em>, <em>Erysiphales</em>, <em>Helotiales</em>, <em>Hypocreales</em>, <em>Mycosphaerellales</em>, <em>Phyllachorales</em>, <em>Pleosporales</em>, <em>Xylariales </em>(<em>Ascomycota</em>), <em>Uredinales</em>, <em>Microbotryales</em>, <em>Urocystales </em>(<em>Basidiomycota</em>) and <em>Hyphomycetes </em>and <em>Coelomycetes </em>(anamorphic fungi), which were hosted by 301 species of vascular plants as well as by 19 taxa of <em>Erysiphales </em>and <em>Uredinales</em>. The predominanting group was anamorphic fungi (65% of species), especially members of <em>Sphaeropsidales </em>(39%). This group was however less dispersed on the study area than <em>Uredinales </em>and <em>Erysiphales</em>, which were represented by relatively small number of species. The results provided data on diversi- fied occurrence of fungi depending on abiotic (humidity, temperature, insolation) and biotic factors (e.g. density of host plant population) provided by plant communities. The differences concern species composition and richness of fungi, their distribution as well as frequency of hosts and parasites. In the case of members of <em>Erysiphales</em>, <em>Moniliales </em>and <em>Peronosporales </em>differences in phenology were also noted. The greatest species richness and distribution of the micromycetes was observed in <em>Origano-Brachypodietum </em>and the poorest were plots of <em>Luzulo pilosae-Fagetum</em>. Most frequently the parasites infected small percentage of the individuals in the population of the hosts (about 1%), which occurred with the lowest coverage (below 10%). This type of relationship between frequency of fungi and density of plants dominated in all of the studied phytocenoses. Sixty two species of fungi observed on Wyżyna Częstochowska Upland are new for Polish biota. They belong to anamorphic fungi, mainly to <em>Phyllosticta </em>(32 species) and <em>Ascochyta </em>(15).

Long-term dynamics and destruction of marsh vegetation in the Kolokolkova Bay of the Barents Sea

2012 ◽  
pp. 66-77 ◽  
Author(s):  
I. A. Lavrinenko ◽  
O. V. Lavrinenko ◽  
D. V. Dobrynin
Keyword(s):  
Species Composition ◽  
Plant Communities ◽  
Barents Sea ◽  
Mean Value ◽  
Marsh Vegetation ◽  
Composition And Structure ◽  
The Mean ◽  
Species Composition And Structure

The satellite images show that the area of marshes in the Kolokolkova bay was notstable during the period from 1973 up to 2011. Until 2010 it varied from 357 to 636 ha. After a severe storm happened on July 24–25, 2010 the total area of marshes was reduced up to 43–50 ha. The mean value of NDVI for studied marshes, reflecting the green biomass, varied from 0.13 to 0.32 before the storm in 2010, after the storm the NDVI decreased to 0.10, in 2011 — 0.03. A comparative analysis of species composition and structure of plant communities described in 2002 and 2011, allowed to evaluate the vegetation changes of marshes of the different topographic levels. They are fol­lowing: a total destruction of plant communities of the ass. Puccinellietum phryganodis and ass. Caricetum subspathaceae on low and middle marches; increasing role of halophytic species in plant communities of the ass. Caricetum glareosae vic. Calamagrostis deschampsioides subass. typicum on middle marches; some changes in species composition and structure of plant communities of the ass. Caricetum glareosae vic. Calamagrostis deschampsioides subass. festucetosum rubrae on high marches and ass. Parnassio palustris–Salicetum reptantis in transition zone between marches and tundra without changes of their syntaxonomy; a death of moss cover in plant communities of the ass. Caricetum mackenziei var. Warnstorfia exannulata on brackish coastal bogs. The possible reasons of dramatic vegetation dynamics are discussed. The dating of the storm makes it possible to observe the directions and rates of the succession of marches vegetation.

scholarly journals Disentangling the Ecological Determinants of Species and Functional Trait Diversity in Herb-Layer Plant Communities in European Temperate Forests

Forests ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 552
Author(s):  
Janez Kermavnar ◽  
Lado Kutnar ◽  
Aleksander Marinšek
Keyword(s):  
Species Richness ◽  
Species Composition ◽  
Plant Communities ◽  
Functional Trait ◽  
Forest Stand ◽  
Relative Importance ◽  
Herb Layer ◽  
Bud Bank ◽  
Tree Species Composition ◽  
Stand Characteristics

Forest herb-layer vegetation responds sensitively to environmental conditions. This paper compares drivers of both taxonomic, i.e., species richness, cover and evenness, and functional herb-layer diversity, i.e., the diversity of clonal, bud bank and leaf-height-seed plant traits. We investigated the dependence of herb-layer diversity on ecological determinants related to soil properties, climatic parameters, forest stand characteristics, and topographic and abiotic and biotic factors associated with forest floor structure. The study was conducted in different forest types in Slovenia, using vegetation and environmental data from 50 monitoring plots (400 m2 each) belonging to the ICP Forests Level I and II network. The main objective was to first identify significant ecological predictors and then quantify their relative importance. Species richness was strongly determined by forest stand characteristics, such as richness of the shrub layer, tree layer shade-casting ability as a proxy for light availability and tree species composition. It showed a clear positive relation to soil pH. Variation in herb-layer cover was also best explained by forest stand characteristics and, to a lesser extent, by structural factors such as moss cover. Species evenness was associated with tree species composition, shrub layer cover and soil pH. Various ecological determinants were decisive for the diversity of below-ground traits, i.e., clonal and bud bank traits. For these two trait groups we observed a substantial climatic signal that was completely absent for taxonomy-based measures of diversity. In contrast, above-ground leaf-height-seed (LHS) traits were driven exclusively by soil reaction and nitrogen availability. In synthesis, local stand characteristics and soil properties acted as the main controlling factors for both species and trait diversity in herb-layer communities across Slovenia, confirming many previous studies. Our findings suggest that the taxonomic and functional facets of herb-layer vegetation are mainly influenced by a similar set of ecological determinants. However, their relative importance varies among individual taxonomy- and functional trait-based diversity measures. Integrating multi-faceted approaches can provide complementary information on patterns of herb-layer diversity in European forest plant communities.

INFLUENCE OF HERACLEUM SOSNOWSKYI MANDEN. ON BIODIVERSITY OF VASCULAR PLANTS OF THE PROTECTED AREA «LIPOVAYA GORA» (PERM)

2020 ◽  
pp. 272-279
Author(s):  
D. N. Tiunov ◽  
◽  
E. G. Efimik ◽  
Keyword(s):  
Plant Species ◽  
Plant Communities ◽  
Protected Area ◽  
Vascular Plants ◽  
Rapid Development ◽  
Projective Cover ◽  
Seed Productivity ◽  
Heracleum Sosnowskyi ◽  
Rapid Spread

The problem of invasion of Sosnowsky hogweed (Heracleum sosnowskyi Manden.) In the Lipovaya Gora SPNA in Perm is considered. A map of distribution of hogweed cenopopulations in the protected area is presented. The results of the influence of the invasion of Sosnovsky hogweed on the biodiversity of vascu-lar plants of some plant communities are presented. It was revealed that the invasion of hogweed into phytocenoses of the Lipovaya Gora protected area leads to a decrease in the biodiversity of vascular plants by about 26.4% (up to 12 plant species). The ways of introduction of cow parsnip into the communities of the protected area are considered. High seed productivity, high projective cover, reaching in some cases 100%, high phytomass, the presence of dormant seeds, rapid development in spring, and high anthropo-genic load on the territory determine the rapid spread of H. sosnowskyi.

scholarly journals Vegetation dynamics under non-strong agricultural impact (by the example of Oktyabrsk village environs in the Uchalinskiy District of the Republic of Bashkortostan)

2021 ◽  
Vol 10 (1) ◽  
pp. 121-127
Author(s):  
Nazar Nikolayevich Nazarenko ◽  
Svetlana Yuryevna Batyusheva
Keyword(s):  
Plant Communities ◽  
Vegetation Dynamics ◽  
Vascular Plants ◽  
Abiotic Factors ◽  
Pasture Digression ◽  
Plant Associations ◽  
Republic Of Bashkortostan ◽  
Principal Factors ◽  
The Republic ◽  
Agricultural Impact

Vegetation and its biotopes that are transitional between ruderal and natural ones have been researched in Oktyabrsk village environs (Uchalinskiy District of the Republic of Bashkortostan). The studied vegetation is characterized by rather low biodiversity values and high values of dominance 56 species of vascular plants are identified, 10-species plant communities with 23 clear identified dominant and co-dominant species prevail. Ruderal species are dominant and co-dominant for the majority of plant communities. Fifteen plant associations and specific biotopes have been defined by multivariate statistics methods. The identified associations are phytometers for detected principal abiotic factors. The detected associations form ordination series the authors have identified three biotopical centers (ruderal, birch forest and steppe), three biotopical series and three coenotic series, which are associated with high and temperate pasture loading levels and pasture digression series, forming an integrated succession system of the studied territory. It has been established that principal factors of associations forming is pasture loading level and the principal factors of biotopes forming are soil moistening and its variability, ombroregime (humidification level), termoregime and regime of continentality (temperature-varying amplitude).

Plant Population Biology Beyond the Crossroads

Evolution ◽  
1986 ◽  
Vol 40 (3) ◽  
pp. 656
Author(s):  
J. L. Hamrick ◽  
Rodolfo Dirzo ◽  
Jose Sarukhan
Keyword(s):  
Population Biology ◽  
Plant Population

Seed banks as a neglected area of biogeographic research: a review of literature and sampling techniques

1993 ◽  
Vol 17 (3) ◽  
pp. 329-347 ◽  
Author(s):  
Susan J. Warr ◽  
Ken Thompson ◽  
Martin Kent
Keyword(s):  
Species Composition ◽  
Plant Communities ◽  
Seed Bank ◽  
Relevant Literature ◽  
Landscape Management ◽  
Seed Banks ◽  
Sampling Techniques ◽  
Sample Collection ◽  
Sample Distribution ◽  
Tropical Environments

The article highlights a comparatively neglected area of biogeographical research - seed banks and the distribution of seeds in the soil. The article reviews some of the relevant literature on seed banks and the methods for their study. Attention is focused on aspects of seed banks of particular relevance to biogeographers, with detailed examples drawn from seed bank studies in both temperate and tropical environments. In the review of the seed bank literature, the topics covered include the seed banks of successional communities and the size of seed banks in different vegetation types. The species composition of seed banks in different plant communities is discussed, particularly the degree of correlation between the species composition of seed banks and associated ground flora. The relationships between seed persistence, depth of burial in the soil and soil properties, such as moisture and pH, are explored. Seed bank heterogeneity is examined and a number of studies which have attempted to describe and measure the spatial variability of seed banks are summarized. Ways of classifying seed banks in terms of seed bank strategies are explained. The role of seed banks in conservation is discussed, for example in restoration projects, where preferred species have been lost from the vegetation but survive in the seed bank. The relevance of seed banks for the conservation of rare species and in landscape management is considered. Lastly, the contribution of seed banks to the recovery of vegetation following disturbance in various plant communities is discussed. In the review of seed bank sampling techniques, the subjects considered include methods of sample collection, the sampling intensity required for reliable estimates of seed density, a consideration of the relative merits of random and systematic sample distribution, as well as the importance of the timing of sampling. Various methods for the estimation of seed numbers in samples are appraised; these either involve extraction of seeds from the soil, followed by seed identification or enumeration by germination and seedling identification. Problems of analysing seed bank data are considered and several useful techniques for data analysis are suggested. Finally, the article draws attention to areas of future seed bank research for biogeographers and plant ecologists.

Sign in / Sign up

Export Citation Format

Share Document