Export of aquatic productivity, including highly unsaturated fatty acids, to terrestrial ecosystems via Odonata

Тип публикации: статья из журнала

Год издания: 2017

Идентификатор DOI: 10.1016/j.scitotenv.2017.01.017

Ключевые слова: 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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Издание

Журнал: Science of the Total Environment

Выпуск журнала: Vol. 581

Номера страниц: 40-48

ISSN журнала: 00489697

Авторы

  • Popova Olga N. (Russian Acad Sci, Inst Systemat & Ecol Anim, Siberian Branch, Frunze Str 11, Novosibirsk 630091, Russia)
  • Haritonov Anatoly Y. (Russian Acad Sci, Inst Systemat & Ecol Anim, Siberian Branch, Frunze Str 11, Novosibirsk 630091, Russia)
  • Sushchik Nadezhda N. (Russian Acad Sci, Krasnoyarsk Sci Ctr, Fed Res Ctr, Inst Biophys,Siberian Branch, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Svobodny Av 79, Krasnoyarsk 660041, Russia)
  • Makhutova Olesia N. (Russian Acad Sci, Krasnoyarsk Sci Ctr, Fed Res Ctr, Inst Biophys,Siberian Branch, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Svobodny Av 79, Krasnoyarsk 660041, Russia)
  • Kalachova Galina S. (Russian Acad Sci, Krasnoyarsk Sci Ctr, Fed Res Ctr, Inst Biophys,Siberian Branch, Krasnoyarsk 660036, Russia)
  • Kolmakova Anzhelika A. (Russian Acad Sci, Krasnoyarsk Sci Ctr, Fed Res Ctr, Inst Biophys,Siberian Branch, Krasnoyarsk 660036, Russia)
  • Gladyshev Michail I. (Russian Acad Sci, Krasnoyarsk Sci Ctr, Fed Res Ctr, Inst Biophys,Siberian Branch, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Svobodny Av 79, Krasnoyarsk 660041, Russia)

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