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Differences in Fatty Acid Composition between Orb-Weaver Spiders Inhabiting a Riparian Zone and a Steppe Are Associated with the Consumption of Different Chironomid Taxa

Authors
  • Sushchik, N. N.1, 2
  • Borisova, E. V.2
  • Demina (Vitkovskaya), I. A.2
  • Makhutova, O. N.1, 2
  • Gladyshev, M. I.1, 2
  • 1 Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, Krasnoyarsk, Russia , Krasnoyarsk (Russia)
  • 2 Siberian Federal University, Krasnoyarsk, Russia , Krasnoyarsk (Russia)
Type
Published Article
Journal
Doklady Biochemistry and Biophysics
Publisher
Pleiades Publishing
Publication Date
Mar 10, 2021
Volume
496
Issue
1
Pages
40–43
Identifiers
DOI: 10.1134/S1607672921010117
Source
Springer Nature
Keywords
License
Yellow

Abstract

AbstractAmphibiotic insects, chironomids of the genera Glyptotendipes and Chironomus, which emerged from saline Lake Shira, differed in composition and content of fatty acids, including the essential eicosapentaenoic acid (20:5n-3, EPA), and upon flying out they were concentrated in different territories, the riparian zone and remote arid steppe zone, respectively. Potential consumers of chironomids adults, the orb-weaver spiders Larinoidessuspicax, which inhabited both zones, also differed in fatty acid composition. The main difference in their biochemical composition was a significantly higher level of EPA in spiders from the riparian zone that likely to be explained by consumption of the Glyptotendipes adults enriched in this fatty acid and concentrated only within this zone. The higher level of EPA, which is deficient in terrestrial ecosystems, in orb-weaver spiders from the riparian zone of the saline lake may potentially promote a successful survival of the consumers in the arid landscape.

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