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  • 1
    Online-Ressource
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    Echinostelium novozhilovii (Echinosteliaceae, Myxomycetes), a new species from Northern Asia
    Magnolia Press ; 2018
    In:  Phytotaxa Vol. 367, No. 1 ( 2018-08-30), p. 91-
    Details
    In: Phytotaxa, Magnolia Press, Vol. 367, No. 1 ( 2018-08-30), p. 91-
    Kurzfassung: A new Echinostelium novozhilovii species from Northern Asia is described and illustrated. The species was collected in the Khanty-Mansiysk Autonomous Okrug-Yugra, Russia. This new species clearly differs from the previously known species by several morphological characters. Its sporocarps have very large dimensions of 700–2500 µm tall, which exceed the dimensions of E. minutum (up to 500 µm tall). Its spores are the biggest among all known species of the Echinostelium genus with 20–25(30) µm in diameter. Its columella consists of several spore-like bodies. We present a scanning electron micrograph study of E. novozhilovii and an updated identification key for species of the Echinostelium genus worldwide, which currently includes 15 taxa. Holotype specimen of E. novozhilovii is deposited in NSK. It is the first new species for the Echinostelium genus since 1997.
    Materialart: Online-Ressource
    ISSN: 1179-3163 , 1179-3155
    URL: Issue
    URL: Article
    DOI: 10.11646/phytotaxa.367.1
    DOI: 10.11646/phytotaxa.367.1.11
    Sprache: Unbekannt
    Verlag: Magnolia Press
    Publikationsdatum: 2018
    SSG: 12
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  • 2
    Online-Ressource
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    Fig. 5
    Samara State University of Social Sciences and Education ; 2021
    In:  Samara Journal of Science Vol. 10, No. 3 ( 2021-09-01), p. 41-46
    Details
    In: Samara Journal of Science, Samara State University of Social Sciences and Education, Vol. 10, No. 3 ( 2021-09-01), p. 41-46
    Kurzfassung: Species distribution is undergoing rapid changes in the face of habitat modification and climate change. This leads to concerns about the conservation of declining species and raises ecological questions about the processes that govern species ranges and niches. As a consequence, the predictive distribution models which match species records to patterns in abiotic environmental variables have become an established tool in ecology and conservation. Maximum entropy spatial distribution modelling (MaxEnt) solves this problem by inferring species distributions and environmental tolerance based on the occurrence data. The objectives of this research were the ecological niche and running the habitat suitability modelling on dung fungal species Cyathus stercoreus based on its bioclimatic and substrate features within Asia. We constructed a map of the current geographical distribution of the dung fungus Cyathus stercoreus using MaxEnt method. We included in the model 19 WorldClim bioclimatic variables with the corresponding altitude data, and seven spatially well-dispersed species occurrence records. Despite its narrow substrate specialization, Cyathus stercoreus is climatically quite plastic and is able to develop in a wide range of variations in mean annual temperatures and mean annual precipitation, which follows from the analysis of a two-dimensional niche based on two climatic variables using the Envelope method. Modeling the distribution of basidiomycete dung fungi using the Cyathus stercoreus as an example showed that the area of their potential distribution with a zone of favorable climate is very large. Most of the zone with a favorable climate is located in the area with the probability of the presence of species up to 70%. Cyathus stercoreus is not associated with any particular habitat type. On the territory of Russia, in the south of Siberia, the species is located on the northern border of its range in the area with the least favorable bioclimatic environmental factors.
    Materialart: Online-Ressource
    ISSN: 2782-3016 , 2309-4370
    URL: Issue
    URL: Article
    URL: Article
    URL: Article
    URL: Article
    URL: Article
    URL: Article
    DOI: 10.17816/snv2021103
    DOI: 10.17816/snv2021103105
    DOI: 10.17816/snv2021103105.f51207
    DOI: 10.17816/snv2021103105.f51208
    DOI: 10.17816/snv2021103105.f51209
    DOI: 10.17816/snv2021103105.f51210
    DOI: 10.17816/snv2021103105.f51211
    Sprache: Unbekannt
    Verlag: Samara State University of Social Sciences and Education
    Publikationsdatum: 2021
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  • 3
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    Figure 2 - UPGMA tree based on ITS sequences showing phylogenetic relationships of 〈i〉P. pulmonarius〈/i〉 from the Novosibirsk region with other related species of the genus 〈i〉Pleurotus〈/i〉
    Samara State University of Social Sciences and Education ; 2019
    In:  Samara Journal of Science Vol. 8, No. 4 ( 2019-11-29), p. 34-38
    Details
    In: Samara Journal of Science, Samara State University of Social Sciences and Education, Vol. 8, No. 4 ( 2019-11-29), p. 34-38
    Kurzfassung: In this paper the authors reveal features of substrate specialization and habitats distribution of the biotechnologically valuable medicinal resource species ofPleurotus pulmonariusmushrooms in the Novosibirsk Region. The authors show the distribution of the species on deciduous and coniferous tree species, in connection with substrate specificity, distribution in habitats and seasonal features of fructification formation. The studied species is confined mainly to deciduous trees; it was noted only once onAbies sibirica. In general,P.pulmonariuswas recorded on 5 species of deciduous trees, most of the samples were collected onBetula pendulaandPopulus tremula. Less often the fungus is found onSorbus sibirica,Populussp.,Acer negundo,Tilia cordata,Salix alba.P.pulmonariusdevelops in zonal small-leaved and mixed forests most often, it is rarely found in river floodplains and near-river communities. Quite often the fungus is found in artificial plantations, where it is one of the most common wood-decay fungi of anthropogenic habitats. Fructification ofP.pulmonariusin the Novosibirsk Region occurs from May to October, its peak activity is in late summer early fall (August-September).
    Materialart: Online-Ressource
    ISSN: 2782-3016 , 2309-4370
    URL: Issue
    URL: Article
    URL: Article
    URL: Article
    DOI: 10.17816/snv201984
    DOI: 10.17816/snv201984106
    DOI: 10.17816/snv201984106.f48995
    DOI: 10.17816/snv201984106.f48996
    Sprache: Unbekannt
    Verlag: Samara State University of Social Sciences and Education
    Publikationsdatum: 2019
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  • 4
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    Figure 2 - Distribution of the number of species of the genus 〈i〉Polyporus〈/i〉 (in%) in the study area by types of plant formations of subarid plain, subarid and humid mountainous areas.
    Samara State University of Social Sciences and Education ; 2020
    In:  Samara Journal of Science Vol. 9, No. 1 ( 2020-02-28), p. 25-30
    Details
    In: Samara Journal of Science, Samara State University of Social Sciences and Education, Vol. 9, No. 1 ( 2020-02-28), p. 25-30
    Kurzfassung: The paper deals with the features of substrate and biotopic distribution of fungi species of the Polyporus s.l. genus in the southeast of Western Siberia. Most species have a wide range of substrates represented by various species of woody plants. The most widespread and common species are able to develop a wide range of substrates. Rare species are distinguished by a narrow substrate spectrum. For a rare species P . rhizophilus, adapted to exist in the conditions of subarid regions, found only in steppe biome communities, steppe grasses (Stipa , Festuca) are the only substrate. Most species grow on deciduous wood, only some species can grow on conifers, and only the taiga species P. tubaeformis develops exclusively on conifers in mountainous regions. Fungi substrates are represented by 11 species of angiosperms, 3 species of gymnosperms and steppe grasses. Most species are common in numerous communities; all of them are characterized by a high frequency of occurrence and colonize a wide range of substrates. Biotopically narrowly specialized species are few in number; they are characterized by narrow substrate specialization. In anthropogenic habitats, 6 species out of 14 growing in natural communities were recorded. On the plain territory, 10 species of the genus Polyporus were identified, while 14 species were found in mountain systems, since mountain humid areas contain the largest spectrum of substrates for fungi. The greatest diversity of Polyporus species is recorded in dark coniferous forests, among which the number of species is dominated by black aspen-fir forests. With an increase in aridization and a change in plant communities, rare relict mountain taiga, nemoral and typical taiga species are eliminated. The smallest number of Polyporus species is found in the steppe communities of subarid regions.
    Materialart: Online-Ressource
    ISSN: 2782-3016 , 2309-4370
    URL: Issue
    URL: Article
    URL: Article
    URL: Article
    DOI: 10.17816/snv202091
    DOI: 10.17816/snv202091103
    DOI: 10.17816/snv202091103.f49949
    DOI: 10.17816/snv202091103.f49950
    Sprache: Unbekannt
    Verlag: Samara State University of Social Sciences and Education
    Publikationsdatum: 2020
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  • 5
    Online-Ressource
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    METHODOLOGICAL BASES OF THE OPTIMIZATION OF ORGANIZATIONAL MANAGEMENT STRUCTURE AT IMPLEMENTING THE MAJOR CONSTRUCTION ENTERPRISE STRATEGY
    Moscow State University of Civil Engineering ; 2015
    In:  Vestnik MGSU , No. 9 ( 2015-9), p. 158-167
    Details
    In: Vestnik MGSU, Moscow State University of Civil Engineering, , No. 9 ( 2015-9), p. 158-167
    Kurzfassung: Planning and implementation of innovations on the microlevel of management and on the higher levels is a process of innovative projects portfolio implementation. Project management is aimed at some goal; therefore, defining the mission and aims of implementation is of primary importance. These are the part of the notion of development strategy of an enterprise. Creating a strategy for big construction holding companies is complicated by the necessity to account for different factors effecting each business-block and subsidiary companies. The authors specify an algorithm of development and implementation of the activity strategy of a big construction enterprise. A special importance of the correspondence of organizational management structure to the implemented strategy is shown. The innovative character of organizational structure change is justified. The authors offer methods to optimize the organizational management structure based on communication approach with the use of the elements graph theory. The offered methodological provisions are tested on the example of the Russian JSC “RZhDstroy”.
    Materialart: Online-Ressource
    ISSN: 1997-0935 , 2304-6600
    URL: Issue
    URL: Journal
    URL: Article
    DOI: 10.22227/1997-0935.2015.9
    DOI: 10.22227/1997-0935
    DOI: 10.22227/1997-0935.2015.9.158-167
    Sprache: Unbekannt
    Verlag: Moscow State University of Civil Engineering
    Publikationsdatum: 2015
    ZDB Id: 2781261-3
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  • 6
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    Substrate specialization and distribution of fungi of the genus 〈i〉Trametes〈/i〉 in the southeast of Western Siberia
    Samara State University of Social Sciences and Education ; 2020
    In:  Samara Journal of Science Vol. 9, No. 4 ( 2020-11-30), p. 39-42
    Details
    In: Samara Journal of Science, Samara State University of Social Sciences and Education, Vol. 9, No. 4 ( 2020-11-30), p. 39-42
    Kurzfassung: The authors have studied the features of the substrate specificity of fungi of the genus Trametes s.l. in the southeast of Western Siberia, where this taxon has 10 species. Most species of fungi have a wide substrate spectrum, represented by the wood of various types of woody plants. Fungal species with a wide distribution and a high frequency of occurrence develop a wide range of substrates. Fungal species that are rare and common only in some localities are not numerous; they are characterized by a narrow substrate spectrum. Most species of fungi develop on hardwood, but only a few species can grow on coniferous wood in mountainous areas. Fungal substrates are represented by wood of sixteen species of angiosperms and one species of gymnosperms of woody plants. These ten species of fungi of the Trametes genus have been identified in natural plant communities in the southeast of Western Siberia, while only eight species have been found in anthropogenic habitats. The largest number of fungal species develops on large-sized tree species found in plant communities that are common in the studied region. The number of species of wood-decay fungi on shrubs is insignificant. A small range of species of wood-decay fungi is typical of introduced species (Linden, Oak, Manchurian Walnut, Apple, Ash, Mulberry) growing in urban plantings and in Botanical gardens. Species of fungi with a wide ecological amplitude can develop on the wood of introduced plants.
    Materialart: Online-Ressource
    ISSN: 2309-4370
    URL: Issue
    URL: Article
    DOI: 10.17816/snv202094
    DOI: 10.17816/snv202094105
    Sprache: Unbekannt
    Verlag: Samara State University of Social Sciences and Education
    Publikationsdatum: 2020
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