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Export of biomass and metals from aquatic to terrestrial ecosystems via the emergence of dragonflies (Insecta: Odonata) / O. N. Popova [et al.] // Contemp. Probl. Ecol. - 2016. - Vol. 9, Is. 4. - P458-473, DOI 10.1134/S1995425516040090 . - ISSN 1995-4255
Кл.слова (ненормированные):
abundance -- Barabinsk forest steppe -- biomass -- emergence -- long-term ecological monitoring -- metals -- Odonata -- Western Siberia -- Anisoptera (dragonflies) -- Diptera -- Insecta -- Libellula quadrimaculata -- Odonata
Аннотация: Long-term monitoring of the abundance and spatial distribution of 18 widespread species of Odonata has made it possible to assess their contribution to the export of aquatic productivity that entered the Barabinsk forest-steppe ecosystem. The annual emergence of Odonata varies from 0.8 to 4.9 g/m2 of the land area and from 2.3 to 13.3 g/m2 of the water area, which is 4–5 times larger than that in Diptera. The total flux of organic matter from water to terrestrial ecosystems remains relatively stable (sixfold interannual variability) irrespective of large interannual variations in the abundance of separate species (e.g., 42-fold interannual variability in Libellula quadrimaculata). The metal content was determined in nine Odonata species. Export of metals by dragonflies decreases in the series K > Na > Mg > Ca > Fe > Zn > Cu > Mn > Pb > Ni > Cr > Cd. Therefore, odonates appear to be quantitatively and qualitatively important providers of aquatic resources to the forest-steppe landscape of Western Siberia. © 2016, Pleiades Publishing, Ltd.

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Держатели документа:
Institute of Systematics and Ecology of Animals, Siberian Branch, Russian Academy of Sciences, ul. Frunze 11, Novosibirsk, Russian Federation
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Siberian Federal University, pr. Svobody 79, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Popova, O. N.; Haritonov, A. Y.; Anishchenko, O. V.; Gladyshev, M. I.

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Export of aquatic productivity, including highly unsaturated fatty acids, to terrestrial ecosystems via Odonata / O. N. Popova [et al.] // Sci. Total Environ. - 2017. - Vol. 581-582. - P40-48, DOI 10.1016/j.scitotenv.2017.01.017 . - ISSN 0048-9697
Кл.слова (ненормированные):
Amphibiotic insect emergence -- Aquatic subsidy -- Docosahexaenoic acid, forest-steppe -- Eicosapentaenoic acid -- Aquatic ecosystems -- Carbon -- Ecology -- Ecosystems -- Forestry -- Organic carbon -- Productivity -- Unsaturated fatty acids -- Amphibiotic insect emergence -- Aquatic subsidy -- Docosahexaenoic acid -- Eicosapentaenoic acid -- Highly unsaturated fatty acids -- Terrestrial ecosystems -- Terrestrial landscape -- Western Siberia , Russia -- Fatty acids -- Animalia -- Aves -- Hexapoda -- Odonata
Аннотация: Based on 31-year field study of the abundance and biomass of 18 species of odonates in the Barabinsk Forest–Steppe (Western Siberia, Russia), we quantified the contribution of odonates to the export of aquatic productivity to surrounding terrestrial landscape. Emergence varied from 0.8 to 4.9 g of wet biomass per m2 of land area per year. Average export of organic carbon was estimated to be 0.30 g·m? 2·year? 1, which is comparable with the average production of herbivorous terrestrial insects in temperate grasslands. Moreover, in contrast to terrestrial insects, emerging odonates contained high quantities of highly unsaturated fatty acids (HUFA), namely eicosapentaenoic acid (20:5n-3, EPA), and docosahexaenoic acid (22:6n-3, DHA), which are known to be essential for many terrestrial animals, especially for birds. The export of EPA + DHA by odonates was found to be 1.92–11.76 mg·m? 2·year? 1, which is equal to an average general estimation of the export of HUFA by emerging aquatic insects. Therefore, odonates appeared to be a quantitatively and qualitatively important conduit of aquatic productivity to forest-steppe ecosystem. © 2017 Elsevier B.V.

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Держатели документа:
Institute of Systematics and Ecology of Animals of Siberian Branch of Russian Academy of Sciences, Frunze str. 11, Novosibirsk, Russian Federation
Institute of Biophysics of Federal Research Center “Krasnoyarsk Science Center” of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Siberian Federal University, Svobodny av. 79, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Popova, O. N.; Haritonov, A. Y.; Sushchik, N. N.; Makhutova, O. N.; Kalachova, G. S.; Kolmakova, A. A.; Gladyshev, M. I.

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