Tyumen Oblast Research Articles

Using Specify 6, 7 and Web Portal Instruments for the North Siberian Biodiversity Data Platform

The digitization and mobilization of biodiversity data are actively ongoing in the northern part of Western Siberia (Tyumen Oblast, Russia), where the history of biodiversity research is relatively short. For small collections and young universities, it is essential to have a ready-made software product, like Specify*1, for managing the collection and publishing data openly. Our use of Specify tools began with a local installation on a single computer in 2015. Now we have a deployed system consisting of two disciplines and ten collections used by five organizations (Table 1), and we utilize Specify 6, Specify 7, the Attachment Server, and Web Portal tools. The checklist of the Western Siberian Specify installation activities includes: Personal collection of fungi since 2015 Using Specify 6 + Specify 7 + Web Portal since 2017 for university collections management Development of a Northwest Siberia bioportal*2 since 2018 Development of a Mycological Portal of West Siberia*3 since 2024 Organization of educational events Helping with localization in Russian language Developing instructions and help videos in Russian language*4 Developing DNA-derived data schema in Specify 6 since 2023 Personal collection of fungi since 2015 Using Specify 6 + Specify 7 + Web Portal since 2017 for university collections management Development of a Northwest Siberia bioportal*2 since 2018 Development of a Mycological Portal of West Siberia*3 since 2024 Organization of educational events Helping with localization in Russian language Developing instructions and help videos in Russian language*4 Developing DNA-derived data schema in Specify 6 since 2023 The main uses of the installation include storing specimen label information, the physical storage location of specimens, and associated digital information (e.g., scans, live images of objects, or microphotographs). We also utilize Specify's reports for generating customized labels and reports on loans or gifts. Taxonomical, geographical, and storage hierarchical trees are used to organize data. Recently, tables associated with molecular data have been more actively utilized to store DNA sequences, their metadata, and trace files. The Specify database is linked via Structured Query Language (SQL) to the Global Biodiversity Information Facility's (GBIF) Integrated Publishing Toolkit (IPT) for publishing collections data through GBIF. The automatic updates are regularly done once a week. Using separate queries, our collection data is regularly exported and published on the local portals, where data on labels, molecular data, distribution maps (Fig. 1) and photographs are presented (Fig. 2). Currently the Specify installation hosts 10 collections from two disciplines and has about 20 users. It contains about 22,000 specimens with 33,000 images attached, and about 1,500 DNA sequences (Table 1). Two platforms for external access to collections were created using the Specify Web Portal tool, and serve as a hub for region- and discipline-oriented collections: Northwestern Siberia Bioportal*2 for all regional collections (currently hosts 10 collections from 5 organizations); Siberian Mycological Portal*3 specifically for mycology collections in Siberia (5 collections from 3 organizations). Northwestern Siberia Bioportal*2 for all regional collections (currently hosts 10 collections from 5 organizations); Siberian Mycological Portal*3 specifically for mycology collections in Siberia (5 collections from 3 organizations). In recent years, we have been actively barcoding the specimens of the Fungarium of Yugra State University (YSU) collection. As a result, two related tables are exported to IPT: one for the collection specimens and another for DNA-derived data (the resulting dataset Filippova et al. 2024). Several ready-made queries were built to export DNA-derived data to other molecular data portals (GenBank, International Barcode of Life (iBOL), and PlutoF). A special protocol on DNA-derived data storage and export using Specify was published on Protocols.io to standardize the procedures and pass on the skills (Filippova and Zvyagina 2024).

Opportunities for the Development of Tyumen Oblast Based on Innovations for the Oil and Gas Sector, Production of High-Tech Equipment, and High-Tech Services

Opportunities for the Development of Tyumen Oblast Based on Innovations for the Oil and Gas Sector, Production of High-Tech Equipment, and High-Tech Services

Salt Lake as a natural monument terrestrial and aquatic biological diversity

The article provides data on biological diversity of plants, animals, and fungi inhabiting Salt Lake Natural Monument and its surroundings (Tyumen Oblast, Russia). The authors used route and sample plot census methods. The natural monument area is situated within the forest steppe ecotone of the West Siberian Plain. Thus species typical for the adjoining boreal and steppe zones are also registered in the biological communities under study. Aquatic ecosystems of the area include two instances opposed from the species diversity and abundance point of view: the poor one of mineralized Salt Lake and the rich one of fresh water Dolgoye Lake. The total of 166 vascular plant species, 110 vertebrate and 95 invertebrate species, as well as 60 fungi species were registered on the territory. Among these, two plant and eight animal species are listed in different Red Data Books. Recreational use of the territory makes the composition and structure of flora and fauna complexes unique, as the species intolerant to anthropogenic load are depressed, and synanthropes are implanted in the assemblages. Biological diversity transformation accelerates due to an increase of the investigated territory aridity.

Regional features of state financial support for small and medium-sized enterprises

Purpose: of the article is to study the existing system of state financial support for small and medium-sized enterprises (SMEs) in the Tyumen Oblast in order to identify problematic points of SME development in the region and determine of appropriate measures for their adjustment.Methods: in the part of the study on the quantitative indicators of State financial support for SMEs, statistical analysis was used, including a study of the structure and dynamics of measures implemented, as well as the number of SMEs. To assess the degree of influence of the tools used on the development of SMEs, data from the ongoing program of state financial support in the Tyumen Oblast were used.Results: in the course of the research, the main determinants constraining the effectiveness of the use of State financial support tools for SMEs in the Tyumen Oblast were identified. The lack of systematic and comprehensive State financial support for SMEs was revealed, which would reflect the vision of the elements of the system and the establishment of the relationships between them, taking into account changes in the external environment and the indication of the most effective support measures for individual areas of SMEs activity.Сonclusions and Relevance: as a result of the study, the need to modernize the implemented state financial support for SMEs in the Tyumen Oblast in the direction of expanding the list of instruments and diversifying the measures applied to legal entities and individual entrepreneurs has been established. As one of the promising areas, it seems reasonable to create guaranteed sales markets and active connection of SMEs to business networks. This will maximize the effectiveness of measures applied to support economically and socially important SMEs, taking into account their specifics, strengthen the financial condition of enterprises in this sector and thus ensure the stability of the economic development of the region.

Determinants of financial well-being of the population of Tyumen oblast

The high differentiation of living standards within the boundaries of a complex subject of the Russian Federation actualizes the problems of studying the determinants of financial well-being of the population. The article analyzes four groups of data for Tyumen oblast with autonomous districts that are part of it for the period of 2013–2021, including: average per capita cash income of the population; structural indicators of the balance of monetary income and expenses of the population; volume of deposits and other funds of individuals (excluding escrow accounts); amount of debt on loans provided to resident individuals. We used methods of matching, plotting scattering diagrams, identifying trends. As a result, a number of the following determinants of financial well-being were identified. Among the population of autonomous districts prevails the desire to accumulate savings in the form of cash (by 2021 the amount reached 393 billion rubles). Persistent shortage of cash savings in the South of Tyumen oblast (– 164 billion rubles) is covered by a surplus formed in the districts. In all three RF subjects there is a significant decrease in the ratio of the volume of deposits of the population and the volume of debt on loans, which corresponds to the all-Russian trend. The well-being of the population of the South Tyumen oblast should be considered with the account of the effect of indicative consumption due to the inevitable differentiation in the income of visitors and local population, as well as differences in behavioral models, which consist in a higher degree of wastefulness among visitors. Additionally, the possibility of using the obtained results in the framework of mathematical and neural network modeling of the process of dynamics in the well-being of the Tyumen blast population is considered.

The ceramic complex of the Transitional Period from the Bronze to the Iron Age of the settle-ment of Mergen 6 in the Lower Ishim River basin (Western Siberia)

The settlement of Mergen 6 is located in the Ishim District of the Tyumen Oblast on the northeastern shore of Lake Mergen by the head of the river Mergenka. It was studied in 1990 and 2002–2011 under the direction of V.A. Zakh and S.N. Skochina. On the site, 1494 m2 were examined. The settlement is multi-layered and contains the materials from the Neolithic Period through to the Middle Ages. The research is aimed at the detailed characterisation of the ceramic complex of the Transitional Period from the Bronze to the Early Iron Age (TPBIA), dated to the 8th–7th cc. BC. The TPBIA ceramic complex is a large one (approximately 7.5 thousand items identified), deposited at a depth predominantly no more than 60 cm from the surface in the layers disturbed by ploughing. It is highly fragmented; whole forms are lacking; in some cases, ceramics was deposited in clusters. Therefore, the object of the research was a subset from the TPBIA ceramic complex of the settlement of Mergen 6 which was analysed on the basis of the formal-classificatory and cultural-historical approaches. With the aid of the methods of mathematical statistics, possible interrelations between the morphological and ornamental traits of the object of the research were established. In the TPBIA ceramic subset, the fragments of the pottery vessels which can be correlated with the ceramics of the archaeological cultures of Krasnoozerka (335 vessels identified by the necks), Gama-yun (no more than 8 items), and Itkul (37 items), and a ceramic group designated as ‘synchretic’ (102 items) were identified. The analy-sis of the morphological and decorative features of the TPBIA ceramics showed quite a close interaction of the diverse population dur-ing the considered period. Elements of the ornament and morphological features of the pottery vessels, constituting the specifics of both the syncretic group of the ceramics, characterised by mixed Krasnoozerka-Gamayun-Itkul traits, as well as by the individual traits of the main cultural groups of the site — on the pottery vessels of the Krasnoozerka group, some elements characteristic of the Gamayun-Itkul decorative patterns; the vessels of the Gamayun-Itkul group have been produced with a deviation from the typical canons — served as markers of the mutual influence.

Deities and spirits in the ideas of the Khanty of the Surgut Ob region (based on materials from 2002 to 2017)

The research is aimed at the characteristics of deities and spirits in the traditional beliefs of the Khanty of the Surgut Ob basin (the territory of Surgut, Nizhnevartovsk, and Nefteyugansk Districts of KMAO — Yugra and Uvatsky District of the Tyumen Oblast). The common traits are identified and differences between the categories of deities and spirits clarified; the transition of personified spirits to the category of deities is shown, as well as the transfer of the forgotten deities to the category of spirits. The sources for the research are represented by publications of the scientists of the late 19th — early 21st c., as well as by the author’s field materials collected in 2002–2017 amongst the Surgut Khanty on the rivers of Lyamin, Pim, Tromyogan, Agan, Bolshoy and Malyy Yugan, as well as on the Demyanka River (the right-bank tributary of the Irtysh River). The comparative-historical approach is employed in this work. Concerning the study of the communicative nature of the relationships between the man and supernatural beings, the concept of M. Salinz (1999) on reciprocal relations and the theory of gift-exchange of M. Moss (2011) are used. Also used are the theoretical and practical exploratory work of E.S. Novik (2004) and E.P. Martynova (2021, 2022), who observed a close link between the traditional perceptions of the peoples of Siberia and the reciprocal and gift-exchange relationships between the human world and the characters of traditional beliefs. Traditional beliefs of the Surgut Khanty include the narratives of a series of supernatural beings who influence all aspects of human life and environment. The author proposes the revision of the intension of the term ‘spirits’ frequently used by the majority of researchers to denote the whole variety of the characters of the traditional beliefs of the Khanty of the Surgut Ob basin. Taking into account the social significance, characteristics, functions, as well as the terminology of the Surgut Khanty, the author proposes to return to the division of their traditional characters into two categories — the łungx (“deities”) and the spirits (“demons” “the evil spirit”), inclu-ding kułet, yelek-kanlekh otet, kaltet, potchek, por ne, mengk, yuli, ves etc. Despite the difference of the characteristics of the personages of both categories, the landscape-geographical and morphological characteristics of the places of living of the dei-ties (yimung togi) may have features similar with places of living of the spirits (atym togi). In the study, specifics of the reciprocal and gift-exchange relationships between humans and characters of the categories of deities and spirits are recorded.

Directions of economic analysis based on the results of mapping the ecosystem of the territory

Subject. The article investigates economic relations based on the analysis of mapping the territory of the ecosystem. Economic analysis is one of the main tools of ecosystem management aimed at socio-economic ecosystem communities development. Convergence of mapping the territory’s ecosystem and various methods of its analysis enables to understand the nature and features of various types of ecosystems, identify key growth points and promising directions of ecosystem dynamics. Objectives. The aim is to systematize directions of economic analysis based on the results of mapping the ecosystem of the territory. Methods. We employed content analysis of scientific papers, logical and systems methods. The research algorithm includes a review of previous studies, the research problem formulation, systematization of directions of economic analysis of territory’s ecosystem, discussion of possibilities of designing development strategies based on the economic analysis. The methodology rests on the system concept and the paradigm of sustainable development (sustainable production). Results. The paper offers a systematized table showing the areas of economic analysis of territory’s ecosystem. Conclusions. The study formulates opportunities for designing sustainable development strategies based on economic analysis and mapping the ecosystem of the territory. It identifies possibilities of strategizing the development of territory’s ecosystem on the basis of economic analysis, by mapping the territory’s ecosystem, using the case of the Tyumen Oblast.

Population Dynamics and Settlement Transformation of Russians in the Russian Federation in 1990–2010

This article compares national census data of 1989, 2002, and 2010 to offer a quantitative description of the distribution dynamics of the Russian people in 1989–2010 based on a classification of Russian regions by the share of Russians in their population and using the Eckel index. Research has found that in regions of the Russian Federation where Russians constitute the absolute or the relative majority, despite the ongoing process of depopulation of Russians, censuses indicate no decline in the share of Russians in the population. The article analyzes the reasons behind this fact. Having contrasted the magnitude of changes in the size of the population of Russians and other peoples of the region in the period concerned, the author concludes specific demographic factors, such as natural Russian population growth/decline as well as migration or assimilation processes, to prevail in the respective region. The author identifies the key regions that were the origin or the destination of migration of Russians in the period under consideration and examines the reasons for such migration. It is found that Russians migrated to such regions as Belgorod Oblast, Moscow, Kaliningrad Oblast, Krasnodarsky Krai, Tyumen Oblast. Among regions that saw a considerable migration outflow of Russians are several republics of the North Caucasus, the Sakha Republic (Yakutia), Tuva, Koryak Okrug, as well as some regions of the Russian Arctic. A special focus is given to a trend that has been present in recent censuses, namely, the growing number of people who “did not specify their ethnicity”. If that trend persists, it will evidently lead to a distortion of the overall picture of the ethnic composition of Russia and its regions.

Разработка программного модуля для оценки пространственного развития территории субъекта Российской Федерации

The article deals with the problem of assessing the spatial development of a complex entity. To solve the problem, the authors proposed the development of a software module using MapBasic for GIS MapInfo, which greatly simplifies and systematizes the user`s work to form an initial database of the territory spatial development indicators. The accumulated and systematized data form them, and they enable clear demonstrating the results of correlation analysis for the Yamal-Nenets Autonomous Okrug, HMAO and the South of the Tyumen Oblast, RF. The program module implements the formation of the current indicator’s evaluation model and the forecast of the settlement lands cadastral value’s specific indicator based on multilevel filtering of selected pairs of indicators. The authors note the possibility of integrating the developed module into the existing domestic software of geoinformation systems for the convenience of reorienting projects from one software to another

Zhuravlevo complex of the of Borki 1 hillfort in the Lower Ishim River Basin

At the end of the Late Bronze Age, there were events taking place in the history of the Eurasian steppes that manifested the beginning of the formation of cultures of the Scythian type. These processes, in many aspects triggered by the climate changes, spread into both southern taiga and forest-steppe territories of Western Siberia. In understanding the processes of the transitional period from the Bronze to Early Iron Age and beginning of the Early Iron Age in the southern taiga and forest-steppe Ishim River Basin, a major role pertains to the materials of the multi-layered hillfort of Borki 1, in the study of which, as well as of the cultures of the concerned period in ge-neral, a significant contribution was made by E.M. Danchenko (1991, 1996). The site is located nearby the village of Borki of Vikulovo District, Tyumen Oblast. This paper aims at the analysis and introduction into the scientific discourse of the materials of the Zhuravlevo type from the excavation trench of 2014 with the clean archaeological layer of the beginning of the Early Iron Age. During this period, the fortified platform of the hillfort was overbuilt with dwellings of the above-ground type, probably timber crib. The Zhuravlevo ware of the settlement finds its closest similarities in the materials of the sites of the Lower Ishim Basin: the settlement of Borovlyanka 2, hillfort of Lastochkino Gnezdo 1, fortified settlement of Maray 4, as well as the sites of Yamsysa 7, Kip 3, Novonikolskoe 3 and others in the southern-taiga Ishim-Irtysh area. Differences in the pottery and material culture assemblages even within a range of the Zhuravlevo complexes, not to mention the later ones of the Bogochanovo type, which have certain continuity with the aforementioned complexes, help to reveal evolutionary development of the culture of the transitional period in the Lower Ishim Basin and to raise the issue of the revision of its chronology and peri-odization. Giving the studies of E.M. Danchenko credit for unification of the Zhuravlevo and Bogochanovo types within the framework of the Bogochanovo Culture of the Early Iron Age, we believe that it would be more logical to consider earlier, Zhuravlevo, materials as a stage in the development of the Krasnoozerka Culture. The existence of the latter we tend to define from the mergence of the Suzgun and Atlym complexes to the formation of the steady Sargatka Culture. In spite of certain dissimilarities in the ware originating from the forest-steppe territories of the Lower Tobol River Basin, Ishim-Irtysh interfluve, Baraba and the Ob River Basin, it still seems that the pro-cesses of the development of the cultures of the concerned period in these regions have similarity in many as-pects. There is a notable uniformity in the bronze assemblages of the sites of these and much wider territories. Products, similar to those found at the hillfort of Borki 1, are present in the complexes of the steppe belt of Eurasia from Tuva to the Circumpontic area and date to, most likely, the period within the 8th–6th cc. BC.

Leisure practices of geological explorers of Western Siberia based on the narratives of pio-neers (1950s–1960s)

In this paper, the main leisure activities of the geologists, identified by the author on the basis of collected inter-views with those involved at the initial stage of geological explorations in Tyumen Oblast during the 1950s–1960s, are presented. The organisation of the leisure activities, as well as the complex development of the social and do-mestic sphere amongst the geological prospectors, in one of the perspective regions in terms of the availability of hydrocarbons, was not amongst the priorities of the state at the dawn of the oil exploration and was a prerogative of the geological community. The trade unions of geologists, who were overseeing social matters, including leisure activities, due to low funding and a lack of adequate personnel and material-and-technical potential did not always successfully cope with the tasks set. The leveling of the shortcomings in this development was imposed on the initia-tive of the oil prospectors themselves, who were interested in improving conditions of their stay at the work sites. It is noted that the initiatives of the geologists expanded the possibilities of organized forms of leisure activities both at stationary places of residence and ’in the field’. The variability of leisure activities at the locations of geological par-ties, including residential places, was significantly higher than in the places of work ― ‘in the field’. However, even in conditions of remoteness from the centres of ‘culture’, oil prospectors carried out improvement of the quality and diversity of their leisure time on their own. The demand for and variability of the leisure practices were taking place in line with the ‘concept of culture’, depended on the degree of qualification and level of education of the specialists, personal development and attitude of the employees, and their environment. The implementation of leisure practices was necessitated by the need for compensating limited opportunities of the socio-cultural environment against the background of the dominance of the strenuous daily work, as well as the confrontation in the archaisation of the daily routine due to the prevalence of the deviant forms of behaviour. Many changes emanating from the oil prospectors and taking place in the socio-cultural sphere later took root and became an asset of the local population. The initia-tive of the geologists made it possible to expand and diversify leisure practices under the lack of opportunities and financial support of the social sphere, which facilitated positive changes in the daily life of the geologists themselves and population of the places where the oil prospectors were staying.

Mortality from alcoholic cardiomyopathy: evidence and statistical problems

Alcoholic cardiomyopathy (ACM) is considered an independent disease, the diagnosis of which is based largely on prior alcohol abuse and the exclusion of other cardiomyopathy causes.Aim. To discuss the accounting and accuracy of the analysis of ACM mortality, including assessing the variability and changes of regional standardized mortality rates (SMR) for 2013-2021, as well as to conduct an analysis of Medical Certificate of Cause of Death (MCCD) and discuss the criteria for ACM as the underlying cause of death (UCD).Material and methods. Rosstat data on the average annual population and ACM death rate (I42.6) in 2013-2021 by region were analyzed. SMRs were calculated using software. To analyze MCCDs, anonymized data from the Department of Civil Registration of the Moscow Oblast (3538 MCCDs in total) were used.Results. In 2013, the regional average SMR from ACM was 14,0±13,9 per 100 thousand population, in 2021 — 13,2±13,6. The only region with annual SMR decrease was the Tyumen Oblast. Zero values were registered in the republics of Ingushetia and Chechnya. In other regions, “wave-like” changes were noted — a decrease or increase in SMR. The coefficient of variation of the SMR was minimal in 2016 (73%) and maximum in 2021 (103%). The contribution to mortality varied from 0 to 6%. Heart failure group codes (I50) were indicated as the immediate cause of death in 93,3% of MCCDs. Part II of the MCCDs was completed in 39,1%. The most common cause of death is group F10 (mental and behavioural disorders due to use of alcohol) and group K70 (alcoholic liver disease). In the literature and guidelines there are no clear criteria for ACM as UCD. The indication of alcohol-related codes in Part II of the MCCD is contrary to the ICD rules.Conclusion. Significant regional variability in SMR from ACM may be due to problems in UCD determination. And despite the small contribution of ACM to allcause mortality, a consensus statement is required on the criteria for diagnosing and completing the MCCD.

New data to the fauna of Tydeidae (Acari: Prostigmata) of Western Siberia, Russia with discovery of secondary sexual dimorphism

The female and male of a new species, Brachytydeus elongatus sp. nov., are described from leaves of common reed (Phragmites australis) in Tyumen Oblast of Russia. Brachytydeus obnoxius (Kuznetsov and Zapletina) is recorded from Russia for the first time; B. inconstans (Kaźmierski) and B. ferulus (Baker) are recorded from Western Siberia for the first time. An unusual type of secondary sexual dimorphism in Brachytydeus elongatus sp. nov. is discussed.

Climate change expected to increase yield of spring cereals and reduce yield of winter cereals in the Western Siberian grain belt

ContextHigher latitude regions are likely to benefit from an extended vegetation period driven by climate change. In this regard, Western Siberia is considered a promising area for cereal crop farming in the near and medium-term future up to 2050. In the southern regions of Western Siberia, spring and winter cereals with different physiology and phenology are cultivated. The spatial resolution of existing estimates of climate change show an impact on cereal crops, however, the resolution remains low, impairing coverage of the diversity of cereals cultivated in Western Siberia. ObjectiveThis study aims to estimate the impact of climate change on the yield of main cereal crops in the Tyumen oblast (Western Siberia, Russia) in the short (2025 – 2030) and medium (2045 – 2050) terms. MethodsThe dataset covered the period from 1990 to 2020 and contained time series data on the yield of cereal crops as well as relevant meteorological parameters (mean air temperature, precipitation, snow cover), all grouped by the 22 municipal districts of the Tyumen oblast. Daily meteorological data were obtained from the CMIP6 model-simulation output and were used to develop random effects linear regression models and to make predictions with optimal models. To assess the impact of climatic parameters on the four key stages of cereal growth (germination, tillering, heading, flowering), a series of random effects linear regression models was developed for each type of cereal crop using six different methods of model building. ResultsThe obtained models predict that the yield of spring grown cereals (barley, oats, spring wheat) would increase by 11.6% ± 1.7% and 10.1% ± 1.7% (mean ± SE), in the short (2025 – 2030) and medium (2045 – 2050) runs as compared to the control period (1990 – 2020). These models predict a decrease in winter grown cereals (rye and winter wheat) yield by 17.1% ± 3.2% in 2025 – 2030 and by 17.7% ± 3.2% in 2045 – 2050. Among the four studied agroecological zones, the largest increase in the yield is predicted in the taiga agroecological zone (up to 84.3% ± 5.5% for barley). ConclusionsCultivation of spring grown cereals adapted to the taiga environment is important for improving grain production rates in Western Siberian regions. SignificanceThis study offers an example of a new bioinformatics-inspired type of analysis that prepares raw biological data for mechanistic modeling. This type of analysis serves to identify the key explanatory variables, paving the way towards spatially resolved multiscale predictive modelling of agroecosystems.

Информационное обеспечение мониторинга земель на примере Тюменской области

Currently, among the most important priorities of any state is to ensure safety and favorable conditions for human life, limit the negative impact of economic and other activities on the environment and provide the protection and rational use of natural resources in the interests of present and future generations, as well as increasing the attractiveness of urbanized areas. In order to ensure and maintain a favorable environmental situation in the built-up and development areas and to improve the quality of life, there is a need for monitoring the lands of urbanized locations, as well as unique natural complexes and objects using modern technologies and geographic information systems. The authors propose the crowdsourcing platform “EcoZemNavigator” and the geoinformation system “Monitoring of lands of specially protected natural areas ofthe Tyumen region” for information support, exchanging up-to-date data, creating a regional monitoring system for the spatial development of the Tyumen oblast territory based on information technologies.

A dynamic input-output model of the Tyumen Oblast south's development based on the von Neumann algorithm

Subject. This article deals with the problem of constructing a real trajectory of the region's development and comparing it with the stated one. Objectives. The article aims to develop an algorithm for calculating and analyzing a dynamic input-output model of the south of the Tyumen Oblast, including social and infrastructural subsystems, and households as an endogenous variable-aggregate. Methods. For the study, we used the methods of construction and analysis of dynamic models by W. Leontief and J. von Neumann. Indicators of balanced growth trajectories were estimated using the Perron–Frobenius theorem. Results. The article proposes an algorithm for the formation of an investment variable. The matrix of direct costs for each year and on average for the periods 2017–2019 and 2017–2020 was identified. Based on the available statistical data, von Neumann highways and model development trajectories were constructed. Conclusions. The shown mechanism for a possible comparison of actual and planned optimal development can help organize digital monitoring of the region's development and analyze deviations from the optimal forecast.

Notes on the rare Cretaceous species Syndetocystis uralensis Strelnikova leading to the description of a new monotypic genus Monoportula P.A.Sims et D.M.Williams nov. gen.

Syndetocystis uralensis, an Upper Cretaceous species from the ‘Tyumen Oblast, Ust’-Man’ya, N. Sos’va River’, first described by Strelnikova, is described in detail using light and electron microscopy. Its unique morphology precludes its inclusion in either Syndetocystis or Rutilaria as the projection extending from the external surface of the valve is not a periplekton. Although some suggestions are made as to its more appropriate place, for the moment it is best placed in the monotypic genus Monoportula uralensis and as incertae sedis. Some speculations on its higher-level relationships are considered.

A dynamic model of development of the Tyumen Oblast based on input-output balance

Subject. This article analyzes the prospects for the application of mathematical models in monitoring of the economic development of the Tyumen Oblast. Objectives. The article aims to test the scheme for adjusting the matrices of Leontief's dynamic model of input-output balance using statistical data reflecting the economic situation of the Tyumen Oblast. Methods. To consider the scheme for identifying the coefficients of the dynamic model, we used the least squares method. Results. The article presents estimates of the dynamic model matrices, which reproduce model states close to the actual trajectories. Relevance. The results of the settings of the dynamic model of input-output balance for the Tyumen Oblast in the first approximation make it possible to restore the model volumes of output, which in the future can be used to compare forecast, actual and model trajectories with the control of deviations and the assessment of their causes.

Filaroidosis Invasion Levels in Sable and Pine Marten Populations

A comparative study of lungworm Filaroides martis invasion rates in sable and pine marten populations in the Cis-Urals region and Central Siberia was performed on the basis of samples totaling more than 3000 animals. In different sable population groups, the invasion extensiveness (prevalence) varies from 2 to 57%; in pine marten population groups, from 0 to 54%. In the Urals transgression zone, the invasion rate is statistically significantly higher in martens compared to sables. The studied groups form three clusters. Low prevalence values (less than 2%) were noted in two eastern populations: the upper Ob River (martens) and the Vakh River (sables); the highest values (over 50%), in martens in the Urals and in both species in the Uvat district, Tyumen oblast. The rest of the groups with moderate prevalence values (20–38%) form the third cluster. The invasion intensity varies from 2.5 to 3.6 helminth cysts per infected individual in sables, and from 0 to 4.6 cysts in martens; for most pairwise comparisons performed based on these two parameters, differences between samples are statistically significant. In western groups of both species, the invasion intensity is higher compared to eastern groups. In sables, invasion prevalence and intensity correlate in a statistically significant (r = 0.95; p = 0.01) way. One geographical trend was identified: in pine martens, invasion prevalence increases in a northerly direction. Cases with prevalence levels less than 5% can be explained by the absence of formed filaroidosis foci. At the beginning of the 2010s, a twofold increase in prevalence over the previous 20 years was recorded; this phenomenon has no adequate explanation yet.