scholarly journals Physiological age of female bloodsucking midges (Diptera: Simuliidae) in the south of Tyumen region

2020 ◽  
Vol 10 (5) ◽  
pp. 105-109
Author(s):  
O.A. Fiodorova ◽  
S.A. Kozlov ◽  
O.A. Fiodorova
Keyword(s):  
Far East ◽  
Practical Interest ◽  
Southern Taiga ◽  
Physiological Age ◽  
Gonotrophic Cycle ◽  
Forest Zone ◽  
Female Population ◽  
Blood Sucking ◽  
The Russian Federation

Despite the fact that blood-sucking flies (Diptera: Simuliidae) are mass bloodsuckers in a number of regions of Siberia and Far East, their biology in Russia and in countries of far abroad is still little studied. The purpose of this work is to study the physiological age of female flies in the subzone of the southern taiga of Tyumen region. Physiological age of female flies was determined by the method of V.P. Polovodova and T.S. Detinova, which was initially developed for mosquitoes, with a modification for black gnats by the number of “yellow bodies” - extensions of egg tube-ducks. Studies on the physiological age of females of one species of blood-sucking flies (Diptera: Simuliidae) Byssodon maculatus Mg., found in the subzone of the southern taiga of the forest zone. The species are mass bloodsuckers. It completes mainly one gonotrophic cycle, however by the end of the season the number females having laid eggs two times reaches 20-30%. A large portion of the female population (10 -22%) fails to complete any gonotrophic cycle. Due to the cold times at the end of the summer season, there is a rejuvenation of the population due to the death of physiologically old females. Comparing changes in population and age composition of females allows to claim that the first two species have two and the last one - just one geniture during the season. Determination of the physiological age of the female or the number of gonotrophic cycles done by a female, and accordingly, number of blood suckings is of practical interest, not only a theoretical one, since it gives the possibility to evaluate the epidemiological situation in areas where flies are vectors of a number of infectious and invasionary diseases of thalaremia, onchocercosis, simulidotoxicosis. All this points to the relevance of the study of population density as vectors of infections in the territory of the Russian Federation. Unfortunately, it was not carried out extensively, and even some research is being done in the framework of narrow studies and only in some regions.

scholarly journals Physiological age of female blood-sucking midges (Diptera, Ceratopogonidae) in the south of Tyumen oblast

2018 ◽  
Vol 26 (3) ◽  
pp. 179-182
Author(s):  
O. A. Fiodorova
Keyword(s):  
Far East ◽  
Practical Interest ◽  
Southern Taiga ◽  
Physiological Age ◽  
Biting Midges ◽  
Forest Zone ◽  
Female Population ◽  
Tyumen Oblast ◽  
Blood Sucking ◽  
Southern Taiga Subzone

Despite the fact the fact that biting midges (Diptera, Ceratopogonidae) are abundant blood-sucking insects in a number of areas of Siberia and the Far East, their biology in Russia and abroad is poorly studied. The objective of our research was physiological age of female midges in the subzone of southern taiga of Tyumen Oblast. Physiological age of female midges was determined using the method of V. P. Polovodova and T. S. Detinova, suggested for mosquitoes, modified for midges, in relation to the number of the yellow bodies – enlarged ovarioles. The conducted studies focused on physiological age of females of three species of midges of the subgenus Avaritia (Culicoides punctatus, C. fascipennis, C. grisescens), which occur in the forest zone of the southern taiga subzone. The species are abundant blood-sucking insects. Mostly, they complete one gonotrophic cycle, but by the end of the season, the number of females which had laid eggs twice reached 20–30%. Part (10–22%) of the female population does not succeed in completing even a single gonotrophic cucle. In spite of colder weather in the end of summer, a rejuvenation of the population was observed, which occured due to death of physiologically old females. Comparison of changes in number and age composition of females allows us to state that the first two species have two, and the third – one generation during a season. Determination of physiological age of females or the number of gonotrophic cycles they complete, and therefore, the extent of their biting, is a subject of not only theoretical but also practical interest for assessing the epidemiological situation in the areas where midges are vectors of a number of infectious and invasive diseases, such as tularemia, onchocerciasis, bluetongue virus or febris catarrhalis ovium, and Schmallenberg virus. This indicates the relevance of studying density of population vectors of infections. In the Russian Federation, such research unfortunately has only been conducted within the scope of narrow studies, and only in certain regions.

Prospects of anti-corruption education of the population in the Far-East: sociological analysis

2020 ◽  
Vol 92 (3) ◽  
pp. 161-176
Author(s):  
M. N. Zinyatova ◽  
◽  
Ye.A. Kleymenov ◽  
Keyword(s):  
Russian Federation ◽  
Financial Support ◽  
Far East ◽  
Practical Interest ◽  
Sociological Analysis ◽  
Management Decisions ◽  
The Far East ◽  
Semantic Orientation ◽  
The Russian Federation

On the basis of quantitative and qualitative expert sociological surveys, the article presents a model of anti-corruption education in Russia. This model is formed by seven main elements: basis, principles, subjects, objects, methods and means, content of materials (semantic orientation), indicators of the effectiveness of anti-corruption education. Comparing the obtained sociological data characterizing these elements with the corresponding elements of the anti-corruption mechanism enshrined in the current regulatory legal acts of the Russian Federation, the authors identified a number of inconsistencies. They concern, first of all, the principles, subjects of implementation of anti-corruption education, as well as indicators for assessing its effectiveness. For example, experts suggest using non-statutory principles of financial support and standardization of materials presented in the framework of such education when conducting anti-corruption education. At the same time, for the optimization of management decisions in the field of anti-corruption education, scientific and practical interest and contradictions identified within the obtained sociological data are of interest. Such contradictions are most clearly traced in relation to the subjects and objects of anti-corruption education.

New species of Thymus L. (Lamiaceae)

2016 ◽  
pp. 108-115
Author(s):  
V. M. Vasjukov
Keyword(s):  
New Species ◽  
Russian Far East ◽  
Far East ◽  
East Siberia ◽  
Forest Zone ◽  
Magadan Region ◽  
Vladimir Region ◽  
Three New Species ◽  
The Russian Far East

Three new species of the genus Thymus L. are described from the Eastern Europe, East Siberia and the Russian Far East: T. × goginae Vasjukov, nothosp. nova (Vladimir Region), T. lenensis Vasjukov, sp. nova (Republic of Yakutia) and T. probatovae Vasjukov, sp. nova (Magadan Region); a key for determination of the species of the European Russia forest zone is given.

Age-grading in blackflies (Diptera: Simuliidae) by ovariolar morphology

1995 ◽  
Vol 85 (3) ◽  
pp. 339-344 ◽  
Author(s):  
A.I. Gryaznov
Keyword(s):  
Age Determination ◽  
Neutral Red ◽  
Physiological Age ◽  
Gonotrophic Cycle ◽  
Egg Development ◽  
Age Grading

AbstractA method for physiological age determination in blackflies is described from studies on Simulium equinum (Linnaeus), S. ornatum Meigen, S. erythrocephalum (De Geer), and S. nigrum (Meigen) in Russia, and S. vittatum (Zetterstedt), and S.verecundum-venustum supercomplex in Canada. The method uses neutral red to stain the ovariolar structures which indicate preceding gonotrophic cycles. Two different processes can occur in the ovariole during the gonotrophic cycle: egg development with ovulation, or degeneration of a terminal follicle. Egg-sacs are resorbed and form zones of granulation which accumulate in the ovariole at each gonotrophic cycle. Following degeneration of the terminal follicle, a follicular relic (═gonotrophic dilatation) forms. The sum of zones of granulation plus follicular relics in each ovariole can indicate the number of completed gonotrophic cycles. However the number of follicular relics alone does not correspond to the number of preceding gonotrophic cycles and cannot reliably be used for determination of the parity of a female. Female flies collected in nature were categorized as: nulliparous; 1-parous; or multiparous. In multiparous females, most ovarioles have no more than two zones of granulation or a combination consisting of one zone of granulation and a follicular relic. Females in this category are considered to be 2-parous. In some ovarioles of parous females the germarium and terminal follicles were found to have disappeared.

THE IMPORTANCE OF THE RED BOOK OF SOILS FOR MONITORING AND JUSTIFICATION OF CONSERVATION MEASURES

2020 ◽  
Author(s):  
O.S. Bezuglova ◽  
Keyword(s):  
Chemical Properties ◽  
Natural State ◽  
Soil Maps ◽  
Rostov Region ◽  
Conservation Measures ◽  
Background Data ◽  
The Russian Federation ◽  
Physical And Chemical ◽  
And Chemical Properties

Rostov Region belongs to the highly protected natural territories characterized by the continuous plowing. There territories are the only reserves with the soils preserved in their natural state. However, these areas often lack detailed information about the soils quality and composition. Surveying soils on these territories is crucial for determination of their basic physical and chemical properties. The resulted compilation of soil maps could lay a foundation for creating the Red Book of Soils and the formation of a section in the soil-geographical database of the Russian Federation. Subsequently, such information can be used as a background data for the main types of soils in the region. It will be also valuable during monitoring and justification of conservation measures.

ECOLOGY OF CYPRIPEDIUM CALCEOLUS L. (ORCHIDACEAE) IN KIROV REGION

2020 ◽  
Vol 6(72) (2) ◽  
pp. 234-248
Author(s):  
V. N. Suleimanova ◽  
N. Yu. Egorova
Keyword(s):  
Soil Moisture ◽  
Environmental Factors ◽  
Russian Federation ◽  
Soil Acidity ◽  
Southern Taiga ◽  
Soil Salt ◽  
Taiga Forest ◽  
Cypripedium Calceolus ◽  
The Russian Federation ◽  
Lathyrus Vernus

The object of our research was one of the most common orchids in the world – Cypripedium calceolus L. As a rare species, it is listed in the Red book of the Russian Federation (3 category of rarity) [8], the Kirov region (3 category of rarity) [9], as well as in the Red books of 59 regions of the Russian Federation [2]. Limiting factors in the Kirov region are the violation of habitats as a result of anthropogenic impacts – deforestation, recreation, collection for bouquets, digging, reducing the number of species. Studies on the study of C. calceolus in the Kirov region are isolated [10–12]. The purpose of this work is to identify phytocenotic parameters and environmental conditions of C. calceolus habitats within the southern taiga fragment of the range. Studies of ecological and cenotic conditions of C. calceolus habitats were conducted in southern taiga forest ecosystems within the Kirov region (Slobodskaya, Afanasyevsky districts) (See table 1) in the period from 2012 to 2019. The studied habitats of C. calceolus are confined to non-morally-boreal-small-grass and grass spruce forests (Melico nutantis-Piceetum abietis subass. typicum, Maianthemo-Piceetum subass. typicum var. typical) (See fig. 1), pine trees with fir and spruce of various grasses (Melico nutantis-Pinetum sylvestris var. Lathyrus vernus). The growth of C. calceolus on the technogenically disturbed substrate of an old spent limestone quarry overgrown with coniferous rocks and various grasses was also noted. All the studied biotopes are characterized by a large constancy of non-moral species with not significant coverage of mosses. The stand of spruce forest types is dominated by Picea abies, pine-Pinus sylvestris. Abies sibirica occurs as an impurity. The undergrowth layer has a diverse species composition: Sorbus aucuparia, Frangula alnus, Lonicera xylosteum, Yuniperus communis, Daphne mezereum. In this tier of most studied phytocenoses there is a Atragene sibirica. The grass-shrub layer is also very diverse, which determines the high specificity of these communities. In addition to species of boreal small grass (Maianthemum bifolium, Orthilia secunda, Luzula pilosa, Rubus saxatilis), the presence of non – morals is characteristic-Lathyrus vernus, Melica nutans, Stellaria holostea, Asarum europaeum. Moss-lichen layer is fragmentary (covering up to 45 %), Pleurozium schreberi and Hylocomium splendens act as sodominants. Phyto-indication of the studied C. calceolus habitats according to ten ecological scales of D. N. Tsyganov (See table 2, Fig. 2) showed that in relation to the complex of all environmental factors, the studied species is mesovalent (MV) (It total = 0.54) and has an average level of lability in relation to the studied environmental factors. In relation to the complex of all environmental factors, C. calceolus is a mesobiont species. On a scale of soil acidity, the species is semistarvation at termokhimicheskie and apolitically scale and dial illumination-shading – metavalent on the scale of the wealth of the soil nitrogen – hemimillennial at createmotions scale and the scale of continentality of the climate avivamento. Only on the scale of soil moisture and the scale of soil salt regime, C. calceolus is stenovalent, which indicates a very limited range of possible habitats for this factor. The species, in the studied habitats, realizes from 4.61 to 23.84 % of its potential according to the studied factors. For C. calceolus, the results obtained allow us to extend the scale of soil acidity by 0.75 degrees to the right. According to the other scales, the values of the ecological space of the studied CP are placed in the ranges given by D. N. Tsyganov for this type Edaphic conditions of C. calceolus on the scale of soil moisture correspond to regimes from dry-saline to wet-forest-saline; on the factor of soil salt regime-poor soils; soil acidity – acidic-slightly acidic soils; soil richness in nitrogen – nitrogen – poor soils; moisture variability-soils with relatively stable and poorly variable moisture.

A comprehensive approach to the recovery of gold from the technogenic objects of gold mining industry of the Russian Federation Far East

2013 ◽  
Vol 5 (1) ◽  
pp. 1-8
Author(s):  
S. I. Ivannikov ◽  
D. G. Epov ◽  
G. F. Krysenko ◽  
M. A. Medkov ◽  
S. Y. Bratskaya ◽  
...  
Keyword(s):  
Russian Federation ◽  
Gold Mining ◽  
Far East ◽  
Mining Industry ◽  
Comprehensive Approach ◽  
The Russian Federation

Technique for relation global reference system and local realization of global reference system by continuously operated reference stations

2020 ◽  
Vol 962 (8) ◽  
pp. 24-37
Author(s):  
V.E. Tereshchenko
Keyword(s):  
Coordinate System ◽  
Russian Federation ◽  
Reference System ◽  
Main Part ◽  
Precise Point Positioning ◽  
Global Coordinate System ◽  
Coordinate Systems ◽  
Novosibirsk Region ◽  
The Russian Federation

The article suggests a technique for relation global kinematic reference system and local static realization of global reference system by regional continuously operated reference stations (CORS) network. On the example of regional CORS network located in the Novosibirsk Region (CORS NSO) the relation parameters of the global reference system WGS-84 and its local static realization by CORS NSO network at the epoch of fixing stations coordinates in catalog are calculated. With the realization of this technique, the main parameters to be determined are the speed of displacement one system center relativly to another and the speeds of rotation the coordinate axes of one system relatively to another, since the time evolution of most stations in the Russian Federation is not currently provided. The article shows the scale factor for relation determination of coordinate systems is not always necessary to consider. The technique described in the article also allows detecting the errors in determining the coordinates of CORS network in global coordinate system and compensate for them. A systematic error of determining and fixing the CORS NSO coordinates in global coordinate system was detected. It is noted that the main part of the error falls on the altitude component and reaches 12 cm. The proposed technique creates conditions for practical use of the advanced method Precise Point Positioning (PPP) in some regions of the Russian Federation. Also the technique will ensure consistent PPP method results with the results of the most commonly used in the Russian Federation other post-processing methods of high-precision positioning.

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