Environmental Dynamics and Global Climate Change最新文献

{"title":"REPLY TO A.V. SMAGIN: V. WHAT IS WRONG WITH AN “ABIOTIC PAPER” AND DO WE ALWAYS NEED TO TAKE INTO ACCOUNT THE ABIOTIC GAS ABSORPTION BY SOIL?","authors":"M. Glagolev, A. Sabrekov","doi":"10.17816/edgcc16144","DOIUrl":"https://doi.org/10.17816/edgcc16144","url":null,"abstract":"A paper of prof. A.V. Smagin [2007] is analyzed (both from outer scientometric and inner meaningful points of view). In this paper he considers the abiotic absorption of gases by organogenic soils. In this regard, claims of the author of the article to the work of V. M. Stepanenko and his colleagues on the modeling of methane emissions from lakes on the territory of permafrost are also discussed. An idea that (in contrast to the views of A.V. Smagin) a necessity to account for abiotic uptake depends on properties of modeled object is formulated. In particular, if blocks of climate models are developed (like the Stepanenko model), which should work on timescales of 103÷104 hours and more, it makes no sense to take into account the abiotic uptake that occurs within significantly shorter time intervals and concerns an extremely small amount of methane (compared to its total amount, which is released within the indicated 103-104 hours). In addition potential uncertainties of deep soil chamber technique that could be generated by abiotic absorption and biogenic oxidation of methane are discussed.","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121147854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association Carici juncellae-Salicetum rosmarinifoliae (Alnetea glutinosae) on the south taiga section of the Ob River floodplain","authors":"G. Taran, Taran Georgy Semenovich, A. Dyachenko, Dyachenko Alexander Petrovich","doi":"10.17816/EDGCC11388","DOIUrl":"https://doi.org/10.17816/EDGCC11388","url":null,"abstract":"The Carici juncellae–Salicetum rosmarinifoliae Korolyuk et Taran in Taran 1993 association (Salicion cinereae, Salicetalia auritae, Alnetea glutinosae) includes the communities of the shrub (Salix rosmarinifolia, S. cinerea)-birch (Betula pubescens) tussock (Carex juncella, C. cespitosa) mires spread on the big West Siberian river floodplains within the taiga zone. On the Ob River, the association is represented by the C.j.–S.r. spiraeetosum salicifoliae Taran 1993 subassociation. Its range covers the Ob floodplain 830-kilometer distance crossing the subtaiga, south taiga and middle taiga subzones of Western Siberia. In the south taiga subzone (surroundings of the former village Kaibasovo, Krivosheinskiy district of Tomsk Region, 57º14'44\"N, 84º11'05\"E), the C.j.–S.r. spiraeetosum salicifoliae subassociation is studied for the first time. Near the Kaibasovo, the subassociation is represented by two facies: shrubby (Spiraea salicifolia, Salix rosmarinifolia, Salix cinerea) and birch (betulosum pubescentis). The communities of these facies found some floristic differences, which made it possible to attribute them to different variants: var. Cicuta virosa and var. Kadenia dubia. Carex juncella, C. cespitosa and Comarum palustre dominate in the field layer of the tussock mires. In the C.j.–S.r. spiraeetosum salicifoliae subassociation communities near the Kaibasovo, the average total projective cover (TPC) of the tree layer is 7%, shrubs – 34%, grasses – 48%, tussocks – 20%, ground mosses – 14%. Average tussock height is 59 cm. Average species saturation of the communities is 27 species of vascular plants and 18 species of mosses per 100 m2, the volume of the local coenoflora is 39 species of vascular plants and 28 species of mosses. Six moss species (Brachytheciastrum velutinum, Bryoerythrophyllum recurvirostrum, Bryum moravicum, Fissidens bryoides, Plagiomnium cuspidatum, Pylaisia selwynii) were found in the Ob communities of the C.j.–S.r. spiraeetosum salicifoliae for the first time. Due to this, the total volume of the moss flora of the subassociation Ob stands increased to 74 species. The analysis of the variability of the main coenotic and floristic parameters of the C.j.–S.r. spiraeetosum salicifoliae subassociation in the geographical space of the Ob floodplain (from the subtaiga subzone to the middle taiga one) is carried out. The main regularities of these shifts are revealed. The volume of the subassociation local vascular coenoflora (52-53 species) and average species saturation of the communities by vascular plants (20-21 species per 100 m2) are stable on the most of the Ob floodplain sections. At the same time, changes are observed downstream of the Ob River, which can be interpreted as an intracoenotic response of the subassociation communities to smooth changes in the ecological regime of the floodplain when moving in geographical space from south to north. Thus, from the south to the north, many average parameters increase in the sub","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126656708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transformation of the relief of territories of development of gas mining deposits of the Taza peninsula","authors":"P. Bolshanik, T. Mukhamedyanov","doi":"10.17816/EDGCC10454","DOIUrl":"https://doi.org/10.17816/EDGCC10454","url":null,"abstract":"The article discusses the natural conditions of the territory of the Taz peninsula in order to highlight the main natural factors in the transformation of the relief. Special attention is paid to the characteristics of permafrost and cryogenic processes and phenomena observed in this area. The characteristic of geological rocks that make up this territory is given. The influence of the hydrometeorological conditions of the Taz Peninsula is estimated. The main factors of the natural environment that determine the formation of a layer of seasonal melting are: the lithological composition and properties of soils, vegetation cover, topography, surface drainage. The main factor determining the heterogeneity of the soil temperature regime is the spatial unevenness of the snow cover thickness in this area depending on the microrelief of the region and vegetation. The influence of the anthropogenic factor on the transformation of the relief is substantiated. Three categories of violations were identified: areal (occurs during the development of fields and the construction of industrial transport facilities and other types of infrastructure); linear (when laying transport communications); and linear area (in the construction of industrial and residential facilities and a network of transport communications). The most common geomorphological processes on the territory of the Taz peninsula, activating the anthropogenic factor, are soil freezing and thermokarst caused by cryogenic processes, landslide processes and erosion, and more rarely deflation. The development of mineral deposits on the territory of the Taz Peninsula is accompanied by the construction of infrastructure for exploration and production, transportation facilities (pipelines, roads, power lines), and industrial and residential facilities. All these types of anthropogenic impact create pressure on the environment and its transformation, especially in conditions of weak stability of geosystems. Geological cryological zoning of the territory for the development of gas pipeline routes has been proposed. Priority activities in developed areas should include: recultivation of disturbed areas - restoration of damaged soil and vegetation cover, natural and geological environment, engineering and geocryological zoning, designed to develop plans for the development of the territory.","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116412411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anaerobic methane oxidation by nitrate: kinetic isotope effect","authors":"V. Vavilin, А Vavilin Vasiliy","doi":"10.17816/EDGCC10534","DOIUrl":"https://doi.org/10.17816/EDGCC10534","url":null,"abstract":"The ratio of stable carbon isotopes (13C/12C) in different environments serves as a significant limitation in estimating the global balance of methane [Hornibrook et al., 2000]. In this case, the value of 13C/12C largely depends on the kinetic isotope effect associated with the metabolism of microorganisms that produce and consume CH4. The article suggests a dynamic model of the processes of methane formation and its anaerobic oxidation with nitrate by methanotrophic denitrifying microorganisms (DAOM), which allowed estimating the fractionation factor of stable carbon isotopes. In the experiment with peat from the minerotrophic bog [Smemo, Yavitt, 2007], the dynamics of the amount of methane and was measured. The dynamic model showed that the introduction of nitrate leads to a slow decrease in the partial pressure of methane. Since methane in the DAOM process is a substrate, methane is enriched with heavier carbon 13C in the system under study. This leads to an increase in the value . The carbon isotope fractionation factor during methane oxidation with nitrate was equal to 1.018 and comparable with the fraction of carbon isotope fractionation in the process of acetoclastic methanogenesis (1.01). Model calculations have shown that during incubation the apparent fractionation factor of carbon isotopes with the simultaneous formation of methane and DAOM slowly decreases. The ratio of 13C/12C isotopes in dissolved and gaseous methane practically does not differ. The model showed that an increase in the initial concentration of nitrate increases the rate of DAOM, which leads to a decrease in the concentration of dissolved methane. In this case, the value of 13C/12C increases. In field studies, Shi et al. (2017) showed that the presence of DAOM in peat bogs in which fertilizers penetrate can be controlled by the amount of nitrate used and the depth of penetration into the anoxic layer. Two MATLAB files describing DAOM are attached to the article.","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"18 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122909687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Delay differential equations as a tool for mathematical modelling of population dynamic","authors":"M. Glagolev, В Глаголев Михаил, A. Sabrekov, Сабреков Александр Фаритович, V. M. Goncharov, Гончаров Владимир Михайлович","doi":"10.17816/EDGCC10483","DOIUrl":"https://doi.org/10.17816/EDGCC10483","url":null,"abstract":"The manuscript constitutes a lecture from a course “Mathematical modelling of biological processes”, adapted to the format of the journal paper. This course of lectures is held by one of authors in Ugra State University. \u0000Delay differential equations are widely used in different ecological and biological problems. It has to do with the fact that delay differential equations are able to take into account that different biological processes depend not only on the state of the system at the moment but on the state of the system in previous moments too. The most popular case of using delay differential equations in biology is modelling in population ecology (including the modelling of several interacting populations dynamic, for example, in predator-prey system). Also delay differential equations are considered in demography, immunology, epidemiology, molecular biology (to provide mathematical description of regulatory mechanisms in a cell functioning and division), physiology as well as for modelling certain important production processes (for example, in agriculture). \u0000In the beginning of the paper as introduction some basic concepts of differential difference equation theory (delay differential equations are specific type of differential difference equations) is considered and their classification is presented. Then it is discussed in more detail how such an important equations of population dynamic as Maltus equation and logistic (Verhulst-Pearl) equation are transformed into corresponsive delay differential equations – Goudriaan-Roermund and Hutchinson. \u0000Then several discussion questions on using of a delay differential equations in biological models are considered. It is noted that in a certain cases using of a delay differential equations lead to an incorrect behavior from the point of view of common sense. Namely solution of Goudriaan-Roermund equation with harvesting, stopped when all species were harvested, shows that spontaneous generation takes place in the system. \u0000This incorrect interpretation has to do with the fact that delay differential equations are used to simplify considered models (that are usually are systems of ordinary differential equations). Using of integro-differential equations could be more appropriate because in these equations background could be taken into account in a more natural way. It is shown that Hutchinson equation can be obtained by simplification of Volterra integral equation with a help of Diraq delta function. \u0000Finally, a few questions of analytical and numerical solution of delay differential equations are discussed.","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133490056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On some physical and chemical properties of soils of sandy outcrops of the West Siberian northern regions","authors":"O. Kapitonova, A. K. Olga, Kristina Yu. Aksarina, A. К. Yu.","doi":"10.17816/EDGCC10533","DOIUrl":"https://doi.org/10.17816/EDGCC10533","url":null,"abstract":"The ancient aeolian forms of relief, which are mainly covered with pineries and coniferous forests, are widely spread in the territory of Western Siberia. Anthropogenic transformation of these landscapes leads to the formation of technogenic deserts and sandy outcrops on soils of light mechanical structure generally because of the development of oil and gas extraction industry. Such transformed ecosystems are often met in the north of the West Siberian Plain within a subzone of northern taiga of the taiga natural zone and the zone of the forest-tundra. In 2016–2017, we explored three sites of sandy outcrops in the territory of Purovsky District of Yamalo-Nenets Autonomous Okrug (Tyumen region): in 27 km to the south from Muravlenko, in 32 km to the southwest from Gubkinsky and in 23 km to the East-southeast of New Urengoy. The first two sites are located within the northern taiga; the third site is at the southern border of the forest-tundra, in the area of its gradual transition to the northern taiga. \u0000Results of the conducted researches show the considerable changes in a number of physical and chemical properties of podsolic sandy soils of technogenic deserts in comparison with soils of undisturbed ecosystems. We have revealed statistically significant decrease in the acidity of the surface soil layer to 5–6 units рН due to the destruction of the top soil horizons and exposure of the illuvial and eluvial horizons having smaller acidity. Our researches show the reduction of maintenance of fine fractions – clay and dusty particles – in the transformed soils and, respectively, increase in content of sand up to 95–100%. Also we have revealed statistically significant reduction of soil moisture content in soils of sandy outcrops.  \u0000Thus, the soils of technogenic deserts are characterized by ease, flowability, they are usually not fixed by vegetation and easily are affected by wind. The ecotopes, which are formed on sandy outcrops, differ in extreme conditions. They can be mastered only by a small number of specialized species-erosiophiles, shifting to disturbed felted habitats with similar natural ecotopes with the friable sandy and sabulous sandy soils, often mobile soil typical of marine and lake shallows, river alluvium, taluses, slopes of ravines. On the periphery of sandy outcrops the shafts of falling up to 4,5–5,5 m high are formed. They constitute the real danger to natural undisturbed north taiga and forest-tundra ecosystems, burying them under sandy masses.","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129527199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Long-term phenoclimatic averages of the Yuganskiy Nature Reserve territory and changes for 1961-2016","authors":"E. Zvyagina, Звягина Елена Анатольевна, Tatiana S. Pereyzslovets, Переясловец Татьяна Степановна","doi":"10.17816/EDGCC10367","DOIUrl":"https://doi.org/10.17816/EDGCC10367","url":null,"abstract":"In light of the observed global climate changes in recent decades, we studied the local climate indicators and explored the possible links between the spring and autumn phenophases and climate data changes in the Yuganskiy nature reserve (N 600 17’; E74054’ – N590 23’; E74000’) in 1982-2016. The collected climate data include daily average, maximum and minimum temperatures, daily precipitation amount and intensity, and number of days with precipitation of 0.1mm or more, monthly average of snow depths, dates of first and last occurrence of daily mean temperatures 0, +5, +10°С through the year. Timing of sap movement and leaf fall start were used as the spring and autumn indicators of birch (Bétula péndula ) phenology. The mean value of weather averages in the 30-year period of 1961-1990 was used as reference. Trends were calculated using linear least squares regression. Statistical significance was determined by calculating the standard error of the trend estimate. \u0000We found that the annual mean temperature has increased from –1.9°С (1961-1990) to –0.8° С (1982-2016), with corroborating indicators including increased temperature of the coldest night of the year from –53°С (1961-1990) to –51.3° С (1982-2016) and increased frequency of significant positive temperature anomalies from 21% (1961-1990) to 37% (1982-2016). May, June, August and October nights have become successively warmer. The air temperature increase was not accompanied by a corresponding increase in precipitation. \u0000Statistically significant trends toward earlier onset of spring and summer from 1982 to 2016 were observed. The date of the last spring freeze has been advancing by 6.1 days per decade since 1982. A freeze-free season has lengthened by 7.7 days per decade. Linear trend of the snowmelt timing was –3.7 days per decade. Permanent snow cover period has been shortening by 7.7 days per decade. The date of the first occurrence of the daily mean temperatures of +10° С has been advancing by 5.1 days per decade. However, the 0 -+5° С lag has been lengthening significantly by 9.2 days per decade, and the number of biologically effective degree days (base +5C) has not statistically changed. \u0000Sap flux and leaf fall timing of B. pendula have been advancing almost simultaneously by 4.0 and 4.2 days per decade since 1985. Sap flux beginning and last spring freeze date have been found to be linearly correlated (r=0.904). The average lag of them was 5±1 days and has been lengthening by 3 days per decade (1985–2016).","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114776707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The experience of estimating the aboveground productivity dynamics of grass communities in the Malaya Sosva River floodplain (Nature Reserve \"Malaya Sosva\") taking into account weather, climate and hydrological features","authors":"V. Tyurin, Тюрин Валерий Николаевич","doi":"10.17816/edgcc10204","DOIUrl":"https://doi.org/10.17816/edgcc10204","url":null,"abstract":"This article is devoted to assessing the productivity of grass communities in the Malaya Sosva River floodplain (Reserve \"Malaya Sosva\"). The three-year studies (1986-1988) at six sample plots (SP) were conducted. The main goal was to evaluate the productivity and its relationship with hydrological and meteorological factors. The method of N.F. Khramtsova was used [1974], which allows to avoiding disturbance of vegetation on the SP, as well as performing statistical data processing. The obtained results reflected the close relationship of productivity with soil moisture, connecting to the position in the relief – aboveground biomass increases to the Malaya Sosva River. At the same time, the increase in biomass has a weak relationship with meteorological factors (temperature and precipitation), despite the weather contrasting seasons. The grass communities show relative stability by significant fluctuations in hydrological and weather conditions in different years. There is an inverse correlation between productivity and biodiversity. A similar trend was observed for the flood plain of the Ob River. But there is a significant range of values in the Ob River floodplain due to the extended flooding.","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124231955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rare plants and plant communities of rich fens of “Malaya Sosva” Nature Reserve (Western Siberia)","authors":"E. Lapshina, Лапшина Елена Дмитриевна, G. Ganasevich, Ганасевич Галина Николаевна, A. L. Vasina, Васина Александра Леонидовна","doi":"10.17816/EDGCC9020","DOIUrl":"https://doi.org/10.17816/EDGCC9020","url":null,"abstract":"A geobotanical survey of rich fens on the left-bank terraces of the Em-Egan River, the right tributary of the Malaya Sosva River in the southern part of the nature reserve “Malaya Sosva” (61.79° - 62.05° N, 64.06° - 64.55° E). 179 species have been identified, including 84 species of higher vascular plants, 69 species of mosses and 26 types of liverworts. Of these, 11 species are included in the Red Data Book of the Khanty-Mansi Autonomous District, including 9 species of higher vascular plants and 2 species of mosses: Baeothryon alpinum, Cardamine nymanii, Dactylorhiza traunsteineri, D. incarnata, Hammarbya paludosa, Huperzia selago, Saxifraga hirculus, Thelypteris palustris, Triglochin palustre, Meesia triquetra, Paludella squarrosa. Three more species – Corallorrhiza trifida, Calliergon richardsonii, Meesia uliginosa are included in the list of species whose condition in the natural environment requires special attention. In addition, such rare species as Eriophorum brachyantherum, Stellaria crassifolia, Bistorta major, rare species of mosses such as Bryum bimum, Calliergonella cuspidata, Campylium pretense, Hamatocaulis vernicosus, Scorpidium cossonii, Tomentypnum nitens are listed in the mire plant communities. \u0000On the basis of the ecological-floral approach of the J. Brown-Blanke school, 8 associations, 6 subassociations and 3 communities from 5 unions, 3 orders and 3 classes of vegetation were allocated in the vegetation cover of rich fens. The belonging of one more vegetation community type of the Bistorta major–Sphagnum fuscum dwarf birch community with the sparse fir (Picea obovata) to the class and the order is not established. The highest phytocenotic diversity and the highest concentration of rare and protected species are found in communities of the order Sphagno warnstorfii-Tomentypneetalia. Phytocenotic association and frequency of occurrence of rare species in different types of plant communities are established.","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125928525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rare species of freshwater mollusks of the Bolshoy Yugan River basin (Middle Ob) in collection of 2016","authors":"E. S. Babushkin, Бабушкин Евгений Сергеевич","doi":"10.17816/EDGCC9004","DOIUrl":"https://doi.org/10.17816/EDGCC9004","url":null,"abstract":"Information about rare species used for decide widely spectrum of problems. In practice ‒ for estimating environmental impact from human activities. For example by studying biodiversity in fundamental science. This information very important for monitoring and prevention of species extinction. Regional and Federal Red Books serve this aim. However freshwater mollusks species of the Bolshoy Yugan river basin not presented in the Federal Red Book of Russian Federation. In addition, in the Regional Red Books of Khanty-Mansi autonomous region and Tyumen region data about mollusks are absence. This paper the first step to fill in the gap. Article contains the first data about rare species of freshwater mollusks of the Bolshoy Yugan River basin collected during the field season of 2016. In future, these species possibly will be propose to inclusion in the Red Book of Khanty-Mansi autonomous region. I followed the standard techniques of mollusks sampling, fixation and laboratory treatment. In this research I call species rare if species occurrence was 5,0% and lower. I used contemporary macrosystems of mollusks in the level above family groups of both Bivalves and Gastropods. In addition, on the level under family groups and lower I used alternative approach, which consist of combination of two different taxonomic systems: “traditional” European and Ya.I. Starobogatov’s scientific school or “Russian”. The collection of mollusks is kept in the Federal Zapovednik (Nature Reserve) “Yuganskiy”, which was the material base of my study. In the article discussed aspects of rareness and difficulty of investigates freshwater mollusks. These difficulties connected with existence of different taxonomical approaches and underexplored mollusk's fauna and ecology. Studies of rare species in the Western Siberia are briefly considered. The results of own research and annotated list of rare mollusks species of Bolshoy Yugan River basin collected during the field season of 2016 are presented. Showed that significant part of species richness in the Bolshoy Yugan River basin consist of rare species. These results do not change independent of applied taxonomical approaches “traditional” or “Russian” and discussed with facts in malacologycal literature. There are 50 species of freshwater mollusks were find in 2016, 41 of them are rare in the Bolshoy Yugan River basin. In conclusion marked need for further research of freshwater mollusks. In addition denoted some important priorities of studies, such as systematics, fauna, zoogeography and ecology of mollusks. The question about inclusion in the Red Book of Khanty-Mansi autonomous region some any species of freshwater mollusks are still opened. Because needed additional facts about distribution and abundance species from others parts of region.Partial financial support for this study was obtained from the Ministry of Education and Science of Russian Federation (project 6.1352.2017/ПЧ).","PeriodicalId":336975,"journal":{"name":"Environmental Dynamics and Global Climate Change","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129842176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}