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Fatty acid composition of Cladocera and Copepoda from lakes of contrasting temperature [Text] / M. I. Gladyshev [et al.] // Freshw. Biol. - 2015. - Vol. 60, Is. 2. - P373-386, DOI 10.1111/fwb.12499. - Cited References:88. - The work was supported by the project No. 6.1089.214/K of SiberianFederal University, carried out according to Federal Tasks of Ministryof Education and Science of Russian Federation, and partly supported bygrant of Russian Foundation for Basic Research (RFBR) No. 14-04-00087.We are grateful to Dr. G. Kirillin, Dr. H.-P. Grossart and Dr. P.Kasprzak for their kind help during sampling at Lake Stechlin and to Dr.M.A. Baturina for valuable assistance at Bolshezemelskaya tundra lakes. . - ISSN 0046-5070. - ISSN 1365-2427

РУБ Marine & Freshwater Biology
Рубрики:
FRESH-WATER ZOOPLANKTON
   SEASONAL DYNAMICS
   DAPHNIA-GALEATA
   TROPHIC
Кл.слова (ненормированные):
climate warming -- essential polyunsaturated fatty acids -- temperature -- adaptation -- zooplankton
Аннотация: We studied the fatty acid (FA) composition of six species of Cladocera and six species of Copepoda from five cold-water lakes, situated in the tundra and/or in the mountains, and eight species of Cladocera and four species of Copepoda from eight warm-water lakes (including one reservoir) in temperate regions. We asked whether the contrasting temperature would result primarily simply in changes in the percentages (i.e. percentage of total FAs) and absolute contents (quantities) of the long-chain polyunsaturated fatty acids (PUFAs), eicosapentaenoic acid (20:5n-3, EPA) and docosahexaenoic acid (22:6n-3, DHA), or whether there are other FAs with various number of double bonds and/or chain lengths which could be responsible for a putative homeoviscous adaptation. We also aimed to reveal any consistent phylogenetic differences in FA percentages and contents between Cladocera and Copepoda, separable from any temperature effects. Both taxa in warm waters had greater percentages of 18:0, and lower percentages of 14:0 and 18:4n-3, than in cold waters, but there were no differences in percentages of DHA. In addition, Cladocera, besides the lower percentage of EPA, had higher percentages of 20:0 and 22:0 in warm waters. These patterns in the percentages of 14:0, 18:0, 18:4n-3, 20:0 and 22:0 are in a good agreement with the hypothesis of homeoviscous adaptation. Thus, the role of EPA, and particularly DHA, as unique regulators of the homeoviscous adaptation of the zooplankton may have been overestimated. Overall, we confirmed the known differences between Cladocera and Copepoda, namely higher percentages of EPA in Cladocera and higher percentages of DHA in Copepoda. However, there was c.50% overlap in the ranges of the percentage of EPA in Cladocera and Copepoda, while the ranges in the content of EPA per unit organic carbon in Cladocera and Copepoda overlapped completely. Differences in the percentages and content of DHA between Cladocera and Copepoda were statistically significant and invariant with temperature, and therefore are probably due to phylogenetic factors, rather than any temperature adaptation. Contrasting temperature was not associated with significant differences in the contents of EPA and DHA per unit of organic carbon within the taxa studied. If this remained the case in a warming climate, such warming would be unlikely to reduce the accumulation of these important PUFAs in the zooplankton, at least if species composition was unchanged. However, if there were shifts in the proportions of Cladocera and Copepoda in the zooplankton, for example fewer copepods as temperature rises, a decrease of the flux of PUFA in the ecosystem is plausible, taking into account the phylogenetic (and temperature invariant) differences in DHA between the two groups.

WOS
Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.
Natl Acad Sci Belarus Bioresources, Sci & Pract Ctr, Minsk, Byelarus.
Russian Acad Sci, Inst Biol, Komi Sci Ctr, Ural Div, Syktyvkar, Russia.
Russian Acad Sci, AN Severtsov Inst Ecol & Evolut, Moscow, Russia.
ИБФ СО РАН

Доп.точки доступа:
Gladyshev, Michail I.; Sushchik, Nadezhda N.; Dubovskaya, Olga P.; Buseva, Zhanna F.; Makhutova, Olesia N.; Fefilova, Elena B.; Feniova, Irina Y.; Semenchenko, Vitaliy P.; Kolmakova, Anzhelika A.; Kalachova, Galina S.; Siberian Federal University [6.1089.214/K]; Russian Foundation for BasicResearch (RFBR) [14-04-00087]

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Morphometry and metal concentrations in water and bottom sediments of mountain lakes in Ergaki Natural Park, Western Sayan Mountains / O. V. Anishchenko [et al.] // Water Resour. - 2015. - Vol. 42, Is. 5. - P670-682, DOI 10.1134/S0097807815050036 . - ISSN 0097-8078
Кл.слова (ненормированные):
bottom sediments -- heavy metals -- hydrochemistry -- morphometry -- mountain lakes
Аннотация: The concentrations of nutrients in water and the total concentrations of metals were determined in water and bottom sediments of four lakes in Ergaki Ridge, which differ in their geographic, morphometric, and hydrophysical characteristics. By the concentration of all examined metals in water and bottom sediments, the lakes can be divided into two groups. The first group includes lakes Oiskoe and Svetloe, which feature large size and depth, while the second group includes small and shallow lakes Raduzhnoe and Karovoe. The concentrations of metals are compared with data obtained for different lakes of other mountain regions and with standards established for their concentrations in water and sediments. The concentrations of Zn and Cu in the sediments of Lake Svetloe were found to exceed the threshold, introduced by international standards, below which no impact on biota is recorded. © 2015, Pleiades Publishing, Ltd.

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WOS
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, 50/50, Krasnoyarsk, Russian Federation
Siberian Federal University, Svobodnyi prosp. 79, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Anishchenko, O.V.; Glushchenko, L.A.; Dubovskaya, O.P.; Zuev, I.V.; Ageev, A.V.; Ivanov, E.A.

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The influence of altitudinal zonality on spectral characteristics (MODIS/Terra) mountain forests of Western Sayan / N. Kukoba, Y. Ivanova, I. Botvich // Climate Change Impacts on High-Altitude Ecosystems . - 2015. - P637-643, DOI 10.1007/978-3-319-12859-7_26 . - ISBN 9783319128597 (ISBN); 9783319128580 (ISBN)
Кл.слова (ненормированные):
Mountain forests of Siberia -- Net primary production (NPP) -- Vegetation indices
Аннотация: The purpose of this study is to find a relationship between changes in spectral characteristics (MODIS/Terra) of mountain forests and the altitude at which they grow. In the study area, which is located in the West Sayan Mountains (in South Siberia), the types of forest ecosystems change markedly with altitude. The study uses the data of the MODIS-NPP model intended for the evaluation of global net production. Results of the study show that the best approach to dividing mountain forests into different types is to use 8-day composites of satellite data collected at the beginning of the growing season (April-May). This is the time when the most significant differences are recorded between vegetation indices, including Normalized Difference Vegetation Index (NDVI), LAI, and EVI of the mountain forests growing in different altitudinal zones. © Springer International Publishing Switzerland 2015.

Scopus
Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Biophysics SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Kukoba, N.; Ivanova, Y.; Botvich, I.

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Evolution and present status of experimental manned ecological systems for long-term human life support - Bios, developed by the institute of biophysics of Russian academy of sciences in Krasnoyarsk (Siberia) / J. I. Gitelson, A. G. Degermendzhy // Proceedings of the International Astronautical Congress, IAC : International Astronautical Federation, IAF, 2015. - Vol. 1: 66th International Astronautical Congress 2015: Space - The Gateway for Mankind's Future, IAC 2015 (12 October 2015 through 16 October 2015, ) Conference code: 122921. - P243-250
Кл.слова (ненормированные):
Arid regions -- Biochemistry -- Biospherics -- Plant shutdowns -- Proteins -- Reconfigurable hardware -- Closed ecological systems -- Corrective actions -- Essential proteins -- Extreme conditions -- Human intelligence -- Long-term experiments -- Physiological effects -- Russian Academy of Sciences -- Ecology
Аннотация: Closed ecological systems are of two-fold interest - as models of the Earth's biosphere explorable in experiments and as a facility for long-term autonomous human life support beyond the Earth. Theoretical analysis and experimental implementation of highly closed manned systems has been the subject of studies at the Institute of Biophysics (Russian Academy of Sciences, Siberian Branch) for many years. BIOS systems of increasing complexity with complete regeneration of atmosphere, water and partially food have been realized. In BIOS-3 experiments the system inhabited by 2-3 researchers for 4-6 months maintained its metabolic equilibrium without any negative physiological effect on the crew, which proves its sustainable condition. Specific for BIOS-3 is internal control by the people inhabiting the system. So, BIOS-3 is the first experimental implementation of V.l. Vernadsky's idea about the noosphere - habitable Biosphere controlled by human intelligence. Contrary to predictions of many environmentalists the closedness of the ecosystem is a factor that does not reduce, but increases its sustainability and makes its use for reliable life support outside the Earth realistic. The system is sustainable owing to permanent feedback between the monitoring of few key parameters of the system and automatic corrective actions on them. Main object of control is photo-biosynthesis regenerating parameters of human habitat disturbed by his vital activities. This principle has been realized in BIOS system and proved its reliability in long-term experiments. A new challenge is specified-optimal increase of trophic closedness of the system by reproduction within it essential proteins (peptides and amino acids), lipids, vitamins and other essential compounds. Alternative lines of attack on this problem by state-of-the-art biotechnological methods, GMO including, are under analysis. Reduced BIOS version - without complete closure - can be a breakthrough instrument to improve the quality of life of people living under extreme conditions on the Earth - in polar latitudes (Arctic, Antarctic), in deserts, in high mountains.

Scopus
Держатели документа:
Institute of Biophysics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Gitelson, J. I.; Degermendzhy, A. G.

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Modeling the boundaries of plant ecotones of mountain ecosystems / Y. Ivanova, V. Soukhovolsky // Forests. - 2016. - Vol. 7, Is. 11, DOI 10.3390/f7110271 . - ISSN 1999-4907
Кл.слова (ненормированные):
Biodiversity -- Boundaries of ecotones -- Ecotone -- Mountain forest ecosystems -- Biodiversity -- Climate change -- Climate models -- Ecology -- Forestry -- Landforms -- Vegetation -- Boundary shifts -- Ecotone -- Forest inventory data -- Mountain ecosystems -- Mountain forests -- Second-order phase transition -- Species composition -- Vegetation belt -- Ecosystems
Аннотация: The ecological second-order phase transition model has been used to describe height-dependent changes in the species composition of mountain forest ecosystems. Forest inventory data on the distribution of various tree species in the Sayan Mountains (south Middle Siberia) are in good agreement with the model proposed in this study. The model was used to estimate critical heights for different altitudinal belts of vegetation, determine the boundaries and extents of ecotones between different vegetation belts, and reveal differences in the ecotone boundaries between the north- and south-facing transects. An additional model is proposed to describe ecotone boundary shifts caused by climate change. © 2016 by the authors.

Scopus,
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Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Federal Research Center 'Krasnoyarsk Science Center SB RAS', Academgorodok 50-50, Krasnoyarsk, Russian Federation
V.N. Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Federal Research Center 'Krasnoyarsk Science Center SB RAS', Academgorodok 50-28, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Ivanova, Y.; Soukhovolsky, V.

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Instability Stabilized: Mechanisms of Evolutionary Stasis and Genetic Diversity Accumulation in Fishes and Lampreys from Environments with Unstable Abiotic Factors / A. A. Makhrov, V. S. Artamonova // Contemp. Probl. Ecol. - 2020. - Vol. 13, Is. 4. - P370-381, DOI 10.1134/S1995425520040083. - Cited References:141. - We are grateful to Yu.P. Altukhov, I.N. Bolotov, E.A. Borovikova, I.V. Vikhrev, Yu.Yu. Dgebuadze, E.Yu. Krysanov, K.V. Kuzishchin, B.M. Mednikov, M.V. Mina, V.M. Spitsyn, and V.S. Fridman for helpful discussions of the problems considered in the review. The work was supported by the Russian Science Foundation (project no. 16-14-10001). . - ISSN 1995-4255. - ISSN 1995-4263

РУБ Ecology
Рубрики:
SEBASTES-MENTELLA EVIDENCE
MTDNA CONTROL REGION
POPULATION-STRUCTURE
Кл.слова (ненормированные):
ecology -- evolution -- phenotypic plasticity -- heterozygosity -- heteroplasmy -- mobilization reserve -- Arctic -- mountains
Аннотация: As studies have shown, individuals from well morphologically distinct groups often represent the same species and may even belong to one population in fishes and lampreys from environments with unstable abiotic factors (Arctic, mountain, and desert regions). Phenotypic plasticity ensures broad variation ranges of morphological traits in unstable conditions, which require rapid transitions from one morphogenetic variant to another. The choice of a morphogenetic pathway can be influenced by the level of individual heterozygosity, changes in the copy numbers of certain DNA sequences, heteroplasmy, and the presence of several allelic variants in the genes that strongly affect the phenotype. A cyclic character is often observed for evolutionary processes driven by these mechanisms, and speciation usually does not take place in unstable environmental conditions. However, mobilization reserve accumulate in a species with a broad reaction norm, and particular morphogenetic pathways may be genetically fixed when its population finds its way into stable environmental conditions, facilitating fast allopatric speciation.

WOS
Держатели документа:
Russian Acad Sci, Severtsov Inst Ecol & Evolut, Moscow 119071, Russia.
Russian Acad Sci, Krasnoyarsk Sci Ctr, Fed Res Ctr, Inst Biophys,Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Makhrov, A. A.; Artamonova, V. S.; Russian Science FoundationRussian Science Foundation (RSF) [16-14-10001]

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