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Contemporary Problems of Ecology

2016 year, number 1

Seasonal Changes in Populations of Ixodes persulcatus and I. pavlovsky on the Border Between the Forest and Forest-Steppe Zones of the Ob Region

N. N. LIVANOVA1,2, S. G. LIVANOV3, L. A. GRIGORYEVA4, V. V. BORGOYAKOV5,2, N. V. TIKUNOVA6
1Institute of Systematics and Ecology of Animals, SB RAS, 630090, Novosibirsk, Lavrent’eva ave., 8
2Institute of Chemical Biology and Fundamental Medicine, SB RAS
3Institute of Systematics and Ecology of Animals, SB RAS, 630091, Novosibirsk, Frunze str., 11
4Zoological Institute, RAS, 199034, St. Petersburg, Universitetskaya Emb., 1
5InterLabService Ltd, 630090, Novosibirsk, Lavrent’eva ave., 8
6Institute of Chemical Biology and Fundamental Medicine, SB RAS, 630090, Novosibirsk, Lavrent’eva ave., 8
Keywords: иксодовые клещи, лесостепное Приобье, относительное обилие, физиологический возраст, вирус клещевого энцефалита Borrelia burgdorferi, Borrelia miyamotoi, ixodid ticks, forest-steppe zones of the Ob region, relative abundance, physiological age, tick-borne encephalitis virus, Borrelia burgdorferi, Borrelia miyamotoi

Abstract

Seasonality of epidemic and epizootic processes of tick-borne encephalitis (TBE) and borreliosis among the populations of Ixodes persulcatus and Ixodes pavlovskyi was studied. The study was carried out in 2011-2012 on the flatland part of Toguchin and in the vicinities of Akademgorodok in Novosibirsk, on the border between the forest and forest-steppe zones of the Ob region. The results obtained for I. persulcatus did not contradict the previously published studies. The starting point and peak of mass activity of I. pavlovsky ticks were registered later (the III decade of May) than that of I. persulcatus ticks . Seasonal variations in the physiological age of I. pavlovsky ticks were similar to that of I. persulcatus ticks. The only exception to this was detected in the III decade of April when young specimens prevailed in the population of I. pavlovsky ticks in contrast to the I. persulcatus population. The large influence of I. persulcatus on the circulation of TBE was shown, as well as the influence of I. pavlovskyi on the spreading of Borrelia burgdorferi s.l.