Changes in the population density of two hard tick species, Ixodes (Exopalpiger) trianguliceps Birula, 1895 and Ixodes persulcatus Schulze, 1930, were examined in 1998-2001, and in 2003-2004 near Gomselga Village (Kondopoga District, 62° 04' N, 33° 55' E) in central Karelia. Data on the abundance of ixodid ticks and the species composition of their hosts in 4 forest sites at different stages of post-felling regeneration (secondary succession), i. e. 7-14, 12-19, 25-32, and 80-87 after logging were obtained. I. persulcatus dominated, comprising 73 % of the total tick number in samples. Regenera- tion of the forest resulted in fluctuations of the population density of two examined tick species: I. (Exopalpiger) trianguliceps (larvae 2.8-5.3; nymphs 1.5-2.2; adults 0-0.09) and I. persulcatus (larvae 4.3-10.6; nymphs 0.6-4.2).
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