Export of Biomass and Metals from Aquatic to Terrestrial Ecosystems Via the Emergence of Odonates (Odonata)
O. N. POPOVA1, A. Yu. HARITONOV1, O. V. ANISHCHENKO2, M. I. GLADYSHEV2,3
1Institute of Systematics and Ecology of Animals, SB RAS, 630091, Novosibirsk, Frunze str., 11
2Institute of Biophysics, SB RAS, 660036, Krasnoyarsk, Akademgorodok, 50/50
3Siberian Federal University, 660041, Krasnoyarsk, Svobodny ave., 79
Keywords: Odonаta, многолетний экологический мониторинг, вылет, численность, биомасса, металлы, Барабинская лесостепь, Западная Сибирь, Odonаta, long-term ecological monitoring, emergence, abundance, biomass, metals, Barabinsk forest-steppe, Western Siberia
Abstract
Due to long-term monitoring of the abundance and spatial distribution of 18 widespread species of Odonаta, we estimated their contribution to the export of aquatic resources to the Barabinsk forest-steppe ecosystem. Annual emergence of Odonаta varied 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 more as compared to that of Diрtera. The general flux of organic matter from water to terrestrial ecosystems remains relatively stable (6-fold interannual variability) irrespective of large interannual variations in the abundance of separate species (e. g., 42-fold interannual variability of Libellula quadrimaculata ). The metal content in 9 Odonаta species was defined. The export of metals provided by odonates decreases in the row K > Na > Mg > Ca > Fe > Zn > Cu > Mn > Pb > Ni > > Cr > Cd. Thus, odonates appeared to be quantitatively and qualitatively important providers of aquatic resources to the forest-steppe landscape of Western Siberia.
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